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Full text of "Louisiana Plumbing Code"

LOUISIANA STATE PLUMBING CODE 



2000 edition 



otherwise referred to as 



Chapter XIV 
Plumbing 

Sanitary Code 
State of Louisiana 



consisting of the 

1994 Standard Plumbing Code^ 

as revised bv the 

1999 Louisiana Amendments 



9 




LOUISIANA 



STATE OF LOUISIANA 
DEPARTMENT OF HEALTH AND HOSPITALS 




M. J. "Mike" Foster, Jr. 
GOVERNOR 



Department off 
HEALTH and 
HOSPITALS 

David W. Hood 
SECRETARY 



LOUISIANA STATE PLUMBING CODE 



2000 edition 



Otherwise referred to as\ 



Chapter XIV 
Plumbing 

Sanitary Code 
State of Louisiana 



Chapter XIV (Plumbing) Revision Committee 



MEMBERS 



SJdraey G. Becnel, R.S., Chairman, Engineering Services, Office of Public Health, LDHH, Baton Rouge 
Larry Ainberg,R.S., Sanitarian Services, Office of Public Health, LDHH, Alexandria 
Mkliael Cazes, P.E., Engineering Services, Office of Public Health, LDHH, Alexandria 
Jim Clarke, ChiefPlumbing Inspector, City of Baton Rouge/Parish of East Baton Rouge, Baton Rouge 
Jim Finley, P.E., Louisiana Plumbing - Heating -Cooling Contractors Association, New Orleans 
Lee Fournet, P.E., Division of Engineering and Consulting Services, LDHH, Baton Rouge (>e//ref() 
A.J. Szabo, P.E., Domingue, Szabo, & Associates, Inc., Lafayette (retired) 
Bon Traylor, Executive Director, Louisiana State Plumbing Board, New Orleans 

EX-OFFICIO MEMBERS 

Barry Blue, R.S., Sanitarian Services, Office of Public Health, LDIJH, Baton Rouge (>e/i>efl[il 
Ragos Legendre, R.S., Sanitarian Services, Office of Public Health, LDHH, Baton Rouge 

acting under the direction of: 

Jimmy Guidry, M.D., State Health Officer, Office of Public Health, LDHH, Baton Rouge 

Madeline McAndrew, Assistant Secretary, Office of Public Health, LDHH, Baton Rouge 

Bobby Savoie, R.S., Director, Division of Environmental Health, Office of Public Health, LDHH, Baton Rouge 

R. Douglas Vincent, P.E., Chief Engineer, Engineering Services, Office of Pubhc Health, LDHH, Baton Rouge 

James Antoon, R.S., Chief Sanitarian, Sanitarian Services, Office of Public Health, LDHH, Baton Rouge 

Frank L. Deffes, R.S., Chief Sanitarian, Sanitarian Services, Office of Public Health, LDHH, N.O. (retired) 

H.M. (Jack) Westholz, Jr., Esq., Chief, New Orleans Section, Bureau of Legal Affairs, LDHH, N.O. (retired) 

R08/1 5/2000 



OFFICE OF PUBLIC HEALTH • ENGINEERING SERVICES 

6867 BLUEBONNET BOULEVARD -> BATON ROUGE, LOUISIANA 70810 

PHONE #: 225/765-5063 • FAX #: 225/765-5040 

"AN EQUAL OPPORTUNITY EMPLOYER" 



SANITARY CODE 
STATE OF LOUISIANA 

CHAPTER XIV 



PLUMBING 

ADOPTED BY THE 

STATE HEALTH OFFICER 

in accordance with 

LSA - R.S. 40:4 

APPROVED BY THE 

SECRETARY 

of the 

DEPARTMENT OF HEALTH AND HOSPITALS 

in accordance with 

LSA - R.S, 40:2 



under the general powers and jurisdiction of the 

STATE HEALTH OFFICER 

and the 

OFFICE OF PUBLIC HEALTH 

in accordance with 

LSA - R.S. 40:5 

and 

PROMULGATED 

in accordance with 

LSA - R=S. 49:951 et seq. 

in the Louisiana Register 26:1481 

(JULY 20, 2000) 

EFFECTIVE DATEs OCTOBER 20. 2000 




David W, Hdod 
Secretary, DHH 




Sanitary Code 
State of Louisiana 

CHAPTER XIV 

■PLUMBING 

14:001 Adoption of Louisiana State Plumbing Code 

The Department of Health and Hospitals, Office of Public Health hereby adopts Chapter XIV (Plumbing) 
of the Sanitary Code, State of Louisiana to be comprised of the 1994 edition of the Standard Plumbing 
Code® as modified by the 1999 Louisiana Amendments to the 1994 Standard Plumbing Code®. The 1994 
Standard Plumbing Code® is a copyrighted document published by the Southern Building Code Congress 
International, Inc.(SBCCI) and is recognized as one of several national model plumbing codes. The SBCCI 
will incorporate the 1999 Louisiana Amendments into the text of their 1994 Standard Plumbing Code®. 
After the Office of Public Health has proofread and approved the combined document to ensure accuracy 
and consistency with the 1 999 Louisiana Amendments, SBCCI will print a separate copyrighted document 
entitled the "Louisiana State Plumbing Code". The "Louisiana State Plumbing Code" shall be synonymous 
to "Chapter XIV (Plumbing) of the Sanitary Code, State of Louisiana". 

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4. 

HISTORICAL NOTE: Promulgated by the Department of Health and Human Resources, Office of Health Services and 
Environmental Quality LR 10:2 10 (March 1984), amended by the Department of Health and Hospitals, Office of Public Health, 
LR 1 8 :6 1 8 (June 1992), LR26: 1481 (July 2000). 

14°002 Availability 

Information concerning purchasing copies of the Louisiana State Plumbing Code may be obtained by 
contacting the Southern Building Code Congress International, Inc., 900 Montclair Road, Birmingham, 
Alabama 35213-1206, (205) 591-1853 or by contacting the Chief Sanitarian, Office of Public Health, 6867 
Bluebonnet Blvd. - Box 9, Baton Rouge, LA 70810, tel (225) 763-5553 or fax (225) 763-5552. 

In addition, the Office of Public Health will purchase at least 33 copies of the Louisiana State Plumbing 
Code to be given to the Office of the State Library for distribution to various libraries designated as a 
recorder of state documents. Copies will be provided to the following libraries: LSU-BR, La Tech, UNO, 
LSU-Shreveport, McNeese, USL, NE La Univ., N.O. Public, NW La Univ., Nicholls, SE La Univ., 
Jefferson Parish Public (E & W), La College, Nunez Comm., Loyola, Southem-BR, Southern Univ. Law, 
SUNO, Shreve Memorial, Loyola Law, LSU Medical, Delgado, La Supreme Court, E.B.R. Public, 
Legislative Library, Grambling, Tulane, Library of Congress, State Library-BR, and the Recorder of State 
Documents in the Office of State Library. This will enable the general public to review and otherwise have 
accessibility to the document without the need to individually purchase a copy. 

Copies of the Louisiana State Plumbing Code will also be provided to and may be reviewed (pursuant to 
a request to review public record) at the Office of Public Health's Division of Environmental Health's 
Central Office in Baton Rouge, any of the 9 Regional Engineering/Sanitarian offices, or any of the 64 
Parish Health Unit sanitarian offices generally between the hours of 8:00 a.m. and 4:30 p.m. on regular 
work days. 

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4. 

HISTORICAL NOTE: Promulgated by the Department of Health and Human Resources, Office of Health Services and 
Environmental Quality LR 10:2 10 (March 1984), amended by the Department of Health and Hospitals, Office of Public Health 
LR18:618 {June 1992), LR26: 1481 (July 2000). 

reprinted, in part, fromm the Louisiana Register vol. 26, No. 7 July 20. 2000 



This rule shall become effective on October 20, 2000. 

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4. 

HISTORICAL NOTE: Promulgated by the Department of Health and Human Resources, Office of Heahh Services and 
Environmental Quality LR10:210 (March 1984), amended by the Department of Health and Hospitals, Office of Public Health 
LR18:618 (June 1992), LR26: 1482 (July 2000). 

14:004 11999 Louisiamai Amendments 

The 1999 Louisiana Amendments to the 1994 Standard Plumbing Code® are attached as follows 
(numerical citations comport with 1994 Standard Plumbing Code® format): 

These amendments can be viewed at any Office of Public Health regional 
office or at the Division of Environmental Health's central office. (See 
addresses in the following Summary paragraph.) 

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4. 

HISTORICAL NOTE: Promulgated by the Department of Health and Human Resources, Office of Health Services and 
Environmental Quality LR10:210 (March 1984), amended by the Department of Health and Hospitals, Office of Public Health 
LR18:618 (June 1992), LR26:1482 (July 2000). 



(Addresses for the Office of Public Health regional offices and its Division of Environmental Health central 
office are as follows: Region I, Plaza Towers Annex Bldg., 1001 Howard Ave. - Suite JOOA, New Orleans, 
(504) 599-0102: Region II. 1772 Wooddale Blvd.. Baton Rouge, (225)925-7230; Region III. 106 Canal Blvd., 
Thibodaux, (504) 449-5007; Region IV, 825 Kaliste Saloom Rd.. Brandywine III Bldg. Suite 100, Lafayette, 
(318) 262-5318; Region V, 4240 Sen. J. Bennett Johnston Ave., Lake Charles. (318) 491-2149; Region VI. 
1500 Lee St., Alexandria. (318) 487-5186; Region VII. 1525 Fairfield Ave.. Room 566. Shreveport. (318) 676- 
7485; Region VIII. 2913 Betin St.. Monroe. (318) 362-5246; Region IX, 21454 Koop Drive, Suite IC. 
Mandeville, (504) 871-1331; Division of Environmental Health Central Office. Blanche Appleby Computer 
Complex Bldg. (on the Jimmy Swaggert Ministry Campus), 6867 Bluebonnet Blvd. - Suite 201, Baton Rouge, 
(225) 763-5553.) 



reprinted, in part, fromm the Louisiana Register vol. 26. No. 7 July 20, 2000 



NOTE: The SBCCI Standard Codes are designed for adoption by state or heal governments by reference only. Jurisdictions 
adopting them may make necessary additions, deletions and amendments in their adopting document. Incorporation of any part 
of the SBCCI Standard Codes in codes published by states, local governments, regulatory agencies, individuals or organizations 
is expressly prohibited. When your jurisdiction has adopted one or more of the SBCCI Standard Codes, please send a copy of the 
adopting document to the SBCCI headquarters office. 



EXCEPTION: Local governments and jurisdictions within Louisiana which adopt their own local plumbing code must ensure 
that such local code does not conflict with the requirements of the Louisiana State Plumbing Code and is not less restrictive than 
the Louisiana State Plumbing Code requirements. Local plumbing codes are allowed to be more restrictive than the Louisiana 
State Plumbing Code. {See LA. R.S. 40: 14) 



COPYRIGHT® 2000 

BY 

SOUTHERN BUILDING CODE CONGRESS INTERNATIONAL, INC. 

900 MONTCLAIR ROAD 

BIRMINGHAM, ALABAMA 35213-1206 

205-591-1853 

PRINTED IN U.S.A. 



All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or 
mechanical, including photocopy, recording or by an information storage and retrieval system, without advance permission in 
writing from the publisher. For information contact: Chief Executive Officer, Southern Building Code Congress International, 
Inc., 900 Montclair Road, Birmingham, Alabama 35213-1206. 



• 



Louisiana State Plumbing Code, 2000 edition® 



PREFACE 

The purpose of the Standard Plumbing Code is to serve as a comprehensive regulatory document to guide decisions aimed at 
protecting the public's life, health and welfare in the built environment. This protection is provided through the adoption and 
enforcement, by state and local governments, of the performance-based provisions contained herein. 

The use of performance-based requirements encourages the use of innovative building designs, materials and construction 
systems while at the same time recognizing the merits of the more traditional materials and systems. This concept promotes 
maximum flexibility in building design and construction as well as assuring a high degree of life safety. 

The Standard Plumbing Code incorporates, by reference, nationally recognized consensus standards for use in judging the 
performance of materials and systems. This provides for the equal treatment of both innovative and traditional materials and 
systems, provides for the efficient introduction of new materials into the construction process and assures a high level of 
consumer protection. 

The Standard Plumbing Code is intended to be adopted by reference through statute or ordinance and enforced by state and 
local governments, governmental agencies or other authorities having jurisdiction. Sample adopting legislation is printed in this 
document for that purpose. In preparation for adopting this code, the authority having jurisdiction should specifically consider 
including such items as inspection fees, permit fees and penalties or fines for noncompliance in the adopting legislation since 
these items vary considerably from one jurisdiction to another and cannot be effectively included in a model code. 

The Standard Plumbing Code was first adopted in November, 1955 by a resolution of the Board of Trustees of the Southern 
Building Code Congress International. Revised editions have been published since that time at approximate three-year intervals. 

This Standard Plumbing Code is dedicated to the organizations and individuals, including code officials, architects, engineers 
and industry representatives, who have volunteered their time and knowledge to make this the most comprehensive and up-to- 
date code available. 

Broken vertical bars in the margin indicate Louisiana changes to the 1994 edition of the Standard Plumbing Code. | 

Stars in the margin indicate Louisiana deletions from the 1994 edition of the Standard Plumbing Code. ^ 



Louisiana State Plumbing Code. 2000 edition® 



• 



• 



The Standard Plumbing Code was adopted November 1955, by the Board of Trustees of the Southern Building Code Congress 
International. The code has been kept current through revisions and changes officially approved at Annual Research and 
Education Conferences held at: 

ST. PETERSBURG. FLORIDA, November 10-13, 1957 
BlLOXl, MISSISSlliPI, November 9- 13. 1958 
CHATTANOOGA, TENNESSEE, November 1-4. 1959 
BIRMINGHAM, ALABAMA. October 30-November 2, 1960 
SHREVEPORT, LOUISIANA, November 5-9. 1961 
CLEARWATER, FLORIDA, November 1 1-15, 1962 
DALLAS, TEXAS, November 10-14, 1963 
MOBILE, ALABAMA, October 25-29, 1964 
MIAMI. FLORIDA, November 7-11, 1965 
MEMPHIS, TENNESSEE. November 13-17, 1966 
NORFOLK, VIRGINIA, November 12-16, 1967 
NEW ORLEANS, LOUISIANA, October 27-31, 1968 
JACKSONVILLE, FLORIDA, November 2-6, 1969 
ATLANTA, GEORGIA, November 1-5. 1970 
NEW ORLEANS. LOUISIANA, October 3 1-November 4, 1971 
HOUSTON, TEXAS, October 29-November 3, 1972 
JACKSONVILLE, FLORIDA, October 28-November 2, 1973 
BIRMINGHAM, ALABAMA, November 3-7, 1974 
NASHVILLE, TENNESSEE, November 2-6, 1975 
MYRTLE BEACH, SOUTH CAROLINA. November 14-18. 1976 
ORLANDO, FLORIDA, October 23-27, 1977 
HOUSTON, TEXAS, October 15-19, 1978 
ATLANTA, GEORGIA, October 14-18, 1979 
MEMPHIS, TENNESSEE, October 26-30, 1 980 
ORLANDO, FLORIDA. October 25-29. 1981 
NASHVILLE, TENNESSEE, October 17-21, 1982 
GREENSBORO, NORTH CAROLINA, October 9-13, 1983 
SAVANNAH, GEORGIA, October 28-November 1, 1984 
CORPUS CHRISTl, TEXAS, October 27-3 1 , 1985 
ORLANDO, FLORIDA, October 19-23, 1986 
MEMPHIS, TENNESSEE, October 25-29, 1987 
CHARLESTON, SOUTH CAROLINA. October 23-27, 1988 
CHARLOTTE. NORTH CAROLINA, October 22-26, 1989 
NEW ORLEANS, LOUISIANA, October 1-5. 1990 
TAMPA, FLORIDA, October 25-November 2. 1991 
CORPUS CHRISTl, TEXAS, October 25-29, 1992 
LITTLE ROCK, ARKANSAS, October 17-21, 1993 



Louisiana State Plumbing Code, 2000 edition© 



THE STANDARD CODES 

Standard Amusement Device Code 

Standard Building Code 

Standard Existing Buildings Code 

Standard Fire Prevention Code 

Standard Gas Code 

Standard Housing Code 

Standard Mechanical Code 

Standard Plumbing Code 

Standard Swimming Pool Code 

Standard Unsafe Building Abatement Code 

CODE-RELATED PUBLICATIONS 

Standard for Proscenium Curtains 

Standard for Existing High Rise Buildings 

Standard for Floodplain Management 

Standard for Soil Expansion 

Standard for Sound Control 

Standard for Textile Wall Covering Test 

Standard for Roof Tile Test 

Standard for Hurricane Resistant Residential Construction 

Standard Building Code Commentary 

Standard Gas Code Commentary 

Standard Mechanical Code Commentary 

Standard Plumbing Code Handbook 

One and Two Family Dwelling Code Commentary 

EDUCATION PUBLICATIONS 

Building Official Management 

Building Principles and Code Applications 

Electrical Inspection and Plans Examination 

Electrical Principles and Code Applications (Residential) 

Fire Protection Principles and Code Applications 

Hurricane Resistant Construction 

Legal Aspects of Code Administration 

Mechanical Principles and Code Applications 

One and Two Family Dwelling Inspection 

Plumbing Principles and Code Applications 

Rehabilitation and Housing Principles and Code Applications 

Structural Principles and Code Applications 



Louisiana State Plumbing Code, 2000 edition® 



• 



SAMPLE ORDINANCE TO ADOPT STANDARD CODES 

ORDINANCE NO. 



AN ORDINANCE TO ADOPT VARIOUS STANDARD CODES RELATING TO INSPECTION ACTIVITIES OF THE {cty. county, state) 
AND ENFORCEMENT OF BUILDING PROVISIONS AS PROVIDED IN SAID CODES. 

Section I: WHEREAS, it is the desire of, {name of adopting AUTHomTr) to adopt, in all respects, the various Standard Codes relating to amusement 

devices, building, fire prevention, gas, housings mechanical, plumbing and swimming pools and 

WHEREAS, the adoption of these codes is done to facilitate proper inspection activities by (city, county, state) relating to construction and to 

maintenance of buildings within said {city, county state) and relating to public safety, health and general welfare; 

NOW, THEREFORE, BE IT ORDAINED BY {name of adopting authority) that the following codes are hereby adopted by reference as though they 

were copied herein fully: 

Standard Amusement Device Code - 1985 Edition 

Standard Building Code - 1994 Edition 

Standard Existing Buildings Code - 1988 Edition with 1991/1994 

Revisions 

Standard Fire Prevention Code - 1994 Edition 

Standard Gas Code - 1994 Edition 

Standard Housing Code - 1994 Edition 

Standard Mechanical Code - 1994 Edition 

Louisiana State Plumbing Code, - 2000 Edition 

Standard Swinmiing Pool Code - 1994 Edition 

Standard Unsafe Building Abatement Code - 1985 Edition 

Section 2: BE IT FURTHER ORDAINED BY {name of adopting authority) that any matters in said codes which are contrary to existing Ordinances 

of {city, county, state) shall prevail and that Ordinance No. ' , entitled {fill in here the complete title of the present building 

ordinance or ordinances in effect at the present time) are hereby repealed and, to that extent any existing Ordinances to the contrary are hereby 
repealed in that respect only. 

Section 3: BE IT FURTHER ORDAINED that within said codes, when reference is made to the duties of a certain official named therein, that 
designated official of {city, county, state) who has duties corresponding to those of the named official in said code shall be deemed to be the 
responsible official insofar as enforcing the provisions of said code are concerned. 

Section 4: BE IT FURTHER ORDAINED that this ordinance shall take effect and be in force from and after its passage, the public welfare 

requiring it. 

PASSED AND APPROVED BY {name of adofting authority) on the day of 

ATTEST: 
CLERK: 



BY: 



Louisiana State Plumbing Code, 2000 edition© 



Louisiana State Plumbing Code. 2000 edition® 



Louisiana State Plumbing Code 2000 edition 
TABLE OF CONTENTS 



CHAPTER 1 ADMINISTRATION 

101 Title and Scope 1 

102 Powers and Duties of the Plumbing Official 1 

103 Permits 2 

104 Tests .2 

105 Variances 2 

106 Severability 2 

107 Violations and Penalties 2 

CHAPTER 2 DEFINITIONS 

201 General 3 

202 Definition of Terms 3 

CHAPTER 3 GENERAL REGULATIONS 

301 General . 11 

302 Definitions. 12 

303 Materials 12 

304 Protection of Pipes 15 

305 Trenching, Excavation and Backfill. 16 

306 Structural Safety 16 

307 Fittings 17 

308 Types of Joints 17 

309 Use of Joints 18 

310 Hangers and Supports 18 

311 Tests. 19 

312 Appendix References 19 

CHAPTER 4 PLUMBING FIXTURES 

401 General 21 

402 Definitions 21 

403 Installation 21 

404 Location of Fixtures 21 

405 Materials and Performance Standards 22 

406 Water Conservation. 22 

407 Minimum Plumbing Fixtures 22 

408 Fixture Outlets 29 

409 Fixture Types 29 

410 Appendix References 32 

CHAPTER 5 WATER HEATERS 

501 General 33 

502 Definitions .33 

503 Standards 33 

504 Minimum Capacities for Residential Water Heaters 33 

505 Prohibited Installations 35 

506 Connections 35 

507 Safety Devices .35 

CHAPTER 6 WATER SUPPLY AND DISTRIBUTION 

601 General 37 

602 Definitions . . ; 37 

603 Materials 37 

604 Quality of Water Supply 38 

605 Color Code Identification 38 

606 Protection of Potable Water Supply. 39 

607 Sizing of Water Distribution System ; 41 

608 Water Service Pipe and Fittings . . ,. .... 42 

609 Water Pumping and Storage Equipnient 43 

Louisiana State Plumbing Code, 2000 edition© 



610 Water Supply Control ... 44 

61 1 Water Distribution Pipe, Tubing and Fittings 44 

612 Joints 45 

613 Safety Devices 46 

614 Miscellaneous .46 

615 Water Treatment Units .... 47 

616 Solar Energy Utilization .... 47 

617 Appendix References 47 

CHAPTER 7 SANITARY DRAINAGE 

701 General . . ............ 49 

702 Definitions 49 

703 Materials ..49 

704 Building Sewer . . 50 

705 Drainage Piping Installation 50 

706 Joints 51 

707 Use of Joints. 51 

708 Connections Between Drainage Piping and Fixtures 52 

709 Prohibited Joints and Connections 52 

710 Cleanouts. .52 

711 Size of Cleanouts 53 

712 Cleanout Clearances 53 

713 Fixture Units 53 

714 Drainage System Sizing 54 

715 Offsets in Drainage Piping in Buildings of 

Five Stories or More 55 

716 Waste Stacks Serving Kitchen Sinks 55 

71 7 Sumps and Ejectors 56 

71 8 Appendix References 56 

CHAPTER 8 INDIRECT AND SPECIAL WASTES 

801 General. 57 

802 Definitions 57 

803 Material and Size 57 

804 Indirect Waste Connections — 57 

805 Limitations .57 

806 Indirect Waste Methods. .... 57 

807 Indirect Waste Methods .58 

808 Appendix References 58 

CHAPTER 9 VENTS 

901 General 59 

902 Definitions 59 

903 Materials 59 

904 Vent Stacks 59 

905 Vent Terminals 59 

906 Vent Grades and Connections 60 

907 Bar and Fountain Sink Traps 60 

908 Fixture Vents 61 

909 Common Vent 62 

910 Vents For Fixture Trap Below Trap Dip 63 

91 1 Wet Venting 63 

912 Stack Venting 63 

913 Individual Fixture Reventing 64 

914 Circuit and Loop Venting 65 

915 Pneumatic Ejectors 65 

916 Relief Vents— Stacks of More Than 10 Branch Intervals ... 65 

917 Offset Vents 66 

918 Main Vents to Connect At Base 66 

919 Vent Headers ,66 

920 Size and Length of Vents 66 

924 Appendix References 67 



1001 General 69 

1002 Definitions 69 

1003 Type and Size of Traps and Fixture Drains 69 

1004 Interceptors and Separators 71 

CHAPTER 11 STORM DRAINAGE 

1101 General 73 

1 102 Definitions 73 

1 103 Materials 73 

1 104 Specifications 73 

1 106 Conductors and Connections 74 

1 107 Roof Drains 74 

1 108 Size of Leaders and Storm Drains : 74 

1 109 Secondary (Emergency) Roof Drains 75 

1111 Values for Continuous Flow 75 

1113 Appendix References 75 



ER 12 ALTERNATE DESIGNED 
PLUMBING SYSTEMS 



1201 General 77 

1202 Requirements for Approval 77 

1203 Tests 77 

1204 Third Party Notification 78 

CHAPTER 13 SPECIAL PIPING AND 
STORAGE SYSTEMS 

1301 Hospital Systems 79 

1302 Medical Gas and Medical Vacuum Systems 79 

CHAPTER 14 REFERENCE STANDARDS 

1401 Scope 81 

1 402 Referenced Standards 81 

1403 Organizations 85 

APPENDIX CHAPTERS 

APPENDIX A Roof Drain Sizing Method 87 

*APPENDIX B Travel Trailers and Travel Trailer Parks 89 

^APPENDIX C Mobile/iVianufactured Homes and 
Mobile/Manufactured Home Parks 93 

^APPENDIX D Cross-Connection Control 97 

^APPENDIX E Private Sewage Disposal 101 

APPENDIX F Sizing of Water Piping System 103 

* APPENDIX G Medical Facilities Plumbing Systems 113 

APPENDIX H Permit Fees 119 

''appendix I Installation of Building Sewers 121 

APPENDIX J IllustraUons 123 

APPENDIX K Vacuum Drainage Systems 131 

APPENDIX L Alternate Designed Plumbing Systems 133 

APPENDIX M Procedures for Design, Construction, and Installation 

of Interceptors and Separators 143 

These appendices are a requirement of this code. Others are for information 
only. 

Index 155 

Metric Conversions Table 163 



Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 1 

ADMINISTRATION 



• 



•I 



101 TITLE AND SCOPE 

101.1 Title - ■ : 

The 1994 Standard Plumbing Code® published by the 
Southern Building Code Congress International, Inc. as 
modified by the 1999 Louisiana amendments shall constitute 
and be known and may be cited as "the Louisiana State 
Plumbing Code" hereinafter referred to as "this Code." 

101.1.1 Purpose. The purpose of this chapter is to provide 
for the administration and enforcement of this Code. 

101.2 Code Remedial 

101.2.1 General. This Code is hereby declared to be 
remedial, and shall be construed to secure the beneficial 
interests and purposes thereof-which are public safety, 
health and general welfare-by regulating the installation 
and maintenance of all plumbing. 

101.2.2 Quality Control. Quality control of materials 
and workmanship is not within the purview of this Code 
except as it relates to the purpose stated herein. 

101.2.3 Permitting and Inspection. The inspection or 
permitting of any building or plan by any jurisdiction, 
under the requirements of this Code shall not be construed 
in any court as a warranty of the physical condition of 
such building or the adequacy of such plan. No 
jurisdiction nor any employee thereof shall be liable in tort 
for damages for any defect or hazardous or illegal 
condition or inadequacy in such building or plan, nor for 
any failure of any component of such building, which may 
occur subsequent to such inspection or permitting. 

101.3 Scope 

101.3.1 Applicability. The provisions of this Code shall 
apply to every plumbing installation, including alterations, 
repairs, replacement, equipment, appliances, fixtures, 
fittings and appurtenances. 

101.3.2 Federal and State Authority. The provisions of 
this Code shall not be held to deprive any Federal or state 
agency, or any applicable governing authority having 
jurisdiction, of any power or authority which it had on the 
effective date of the adoption of this Code or of any 
remedy then existing for the enforcement of its orders, nor 
shall it deprive any individual or corporation of its legal 
rights provided by law. 

101.3.3 Appendices. The appendices included in this 
Code are not intended for enforcement unless specifically 
referenced in the Code text, stated in the appendix or 
specifically included in the adopting ordinance or 
promulgated regulations. 



101.3.4 Referenced Standards. Standards referenced in 
this Code shall be considered an integral part of this Code 
without separate adoption. If specific portions of a 
standard are denoted by Code text, only those portions of 
the standard shall be enforced. Where Code provisions 
conflict with a standard, the Code provisions shall be 
enforced. Permissive and advisory provisions in a 
standard shall not be construed as mandatory. 

101.3.5 Maintenance. All plumbing systems, both 
existing and new, and all parts thereof, shall be maintained 
in a safe and sanitary condition. All devices or safeguards 
which are required by this Code when constructed, altered, 
or repaired, shall be maintained in good working order. 
The owner, or his designated agent, shall be responsible 
for the maintenance of the plumbing system. 

101.4 Existing Buildings 

101.4.1 General. Alterations, repairs or rehabilitation 
work may be made to any existing plumbing installations 
without requiring the installations to comply with all the 
requirements of this Code provided that the alteration, 
repair or rehabilitation work conforms to the requirements 
of this Code for new construction. The Plumbing Official 
shall determine the extent to which the existing plumbing 
installation shall be made to conform to the requirements 
of this Code for new construction. 

101.4.2 Change of Occupancy. If the occupancy 
classification of an existing building is changed, the 
plumbing installation shall be made to conform to the 
intent of this Code as required by the Plumbing Official. 

101.5 Special Historic Buildings 

The provisions of this Code relating to the installation, 
alteration, repair, enlargement, restoration, replacement or 
relocation of plumbing installations shall not be 
mandatory for existing buildings or structures identified 
and classified by the state or local jurisdiction as historic 
buildings when such installations are judged by the 
Plumbing Official to be safe and in the public interest of 
health, safety and welfare regarding any proposed 
installation, alteration, repair, enlargement, restoration, 
relocation or replacement. 

102 POWERS AND DUTIES OF THE 
PLUMBING OFFICIAL 

102.1 Authority 

Pursuant to R.S. 40:4. A(7) the State Health Officer is 
required to promulgate the Plumbing Code and pursuant to 
R.S. 40:5(3) the State Health Officer has the authority to 
enforce the Plumbing Code. Any enforcement action by the 
State Health Officer shall be in accordance with Chapter 1 of 



Louisiana State Plumbing Code, 2000 edition© 



the Sanitary Code of the State of Louisiana and/or applicable 
state laws. 

102.2 Rightt of Entry 

102.2.]1 Whenever necessary to make an inspection to 
enforce any of the provisions of this Code, or whenever 
the Plumbing Official has reasonable cause to believe that 
there exists in any building or upon any premises any 
condition or code violation which makes such building or 
premises unsafe, dangerous or hazardous, the Plumbing 
Official may enter such building or premises at all 
reasonable times to inspect the same or to perform any 
duty imposed upon the Plumbing Official by this Code, 
provided that if such building or premises is occupied, he 
shall first present proper credentials and request entry. If 
such building or premises is unoccupied, he shall first 
make a reasonable effort to locate the owner or other 
persons having charge or control of the building or 
premises and request entry. If such entry is refused, the 
Plumbing Official shall have recourse to every remedy 
provided by law to secure entry. 



L2.2 When the Plumbing Official shall have first 
obtained a proper inspection warrant or other remedy 
provided by law to secure entry, no owner or occupant or 
any other persons having charge, care or control of any 
building of premises shall fail or neglect after proper 
request is made as herein provided, to promptly permit 
entry therein by the Plumbing Official for the purpose of 
inspection and examination pursuant to this Code. 



Upon determination that any plumbing system is in 
violation of, or not in conformity with, the provisions of 
this Code, the Plumbing Official may initiate enforcement 
action in accordance with applicable laws, regulations 
and/or ordinances. 

102.4 Revocation off Permits 

102.4.1 Misrepresentation off Application. The 
Plumbing Official may revoke a permit or approval, issued 
under the provisions of this Code, in case there has been 
any false statement or misrepresentation as to the material 
fact in the application or plans on which the permit or 
approval was based. 

102.4.2 Violation of Code Provisions. The Plumbing 
Official may revoke a permit upon determination by the 
Plumbing Official that the installation, erection, alteration 
or repair of the plumbing installation for which the permit 
was issued is in violation of or not in conformity with, the 
provisions of this Code. 

102.5 Unsafe Installations 

All plumbing installations regardless of type, which are 
unsafe or which constitute a hazard to human life, health or 
welfare are hereby declared illegal and shall be abated by 
repair and rehabilitation or by demolition. 



102.6 Requirements Not Covered By Code 

Any requirements necessary for the strength or stability of an 
existing or proposed plumbing installation, or for the public 
safety, health and general welfare, not specifically covered by 
this Code, shall be determined by the Plumbing Official. 

102.7 Alternate Materials and Methods of Construction 

The provisions of this Code are not intended to prevent the 
use of any material or method of construction not specifically 
prescribed by this Code, provided any such alternate has been 
approved by the Plumbing Official. The Plumbing Official 
shall approve any such alternate, provided he finds that the 
alternate for the purpose intended is at least the equivalent of 
that prescribed in this Code in quality, strength, effectiveness, 
durability and safety. The Plumbing Official shall require that 
sufficient evidence or proof be submitted to substantiate any 
claim made regarding its use. 

103 PERMITS 

A person, firm or corporation shall not install, enlarge, alter, 
repair, improve, remove, convert or replace any plumbing 
work, or cause the same to be done, without first obtaining a 
plumbing permit (where such permits are required by state, 
parish, city or other local laws or ordinances) from the 
Plumbing Official. Where such permits are not available the 
property owner, contractor and installer shall be jointly 
responsible for the installation being in compliance with the 
requirements of the Code. 

104 TESTS 

The Plumbing Official may require tests or test reports as 
proof of compliance. Required tests are to be made at the 
expense of the owner or his agent, by an approved testing 
laboratory or other approved agency. 

105 VARIANCES 

The Plumbing Official may vary the application of any 
provision of this Code to any particular case when, in his/her 
opinion, the enforcement thereof would do manifest injustice, 
and would be contrary to the spirit and purpose of this Code 
or public interest. 

106 SEVERABILITY 

If any section, subsection, sentence, clause or phrase of this 
Code is for any reason held to be unconstitutional, such 
decision shall not affect the validity of the remaining portions 
of this Code. 

107 VIOLATIONS AND PENALTIES 

Any person, firm, corporation or agent; contractor; and/or 
installer who violates a provision of this Code shall be 
subject to enforcement action by the Plumbing Official in 
accordance with applicable laws, regulations and/or 
ordinances. 



Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 2 

DEFINITIONS 



201 GENERAL 

20L1 Scope 

For the purpose of this code, certain abbreviations, terms, 
phrases, words and their derivatives shall be construed as set 
forth in this chapter or the chapter to which they are unique. 

20L2 Tense, Gender, and Number 

Words used in the present tense include the future. Words in 
the masculine gender include the feminine and neuter. Words 
in the feminine and neuter gender include the masculine. The 
singular number includes the plural and the plural number 
includes the singular. 

20L3 Words Not Defined 

Words not defined herein shall have the meanings stated in 
the other chapters of the Louisiana State Sanitary Code which 
are adopted or may be adopted, the Standard Building Code, 
the Standard Mechanical Code, the Standard Gas Code or the 
Standard Fire Prevention Code. When words not defined 
herein are defined in both the Louisiana State Sanitary Code 
and in one of these Standard Codes, the definition contained 
within the Louisiana State Sanitary Code shall be given 
preference as it pertains to health and/or health standards. 
Words not defined in any of these source documents shall 
have the meanings stated in the Merriam-Webster's 
Collegiate Dictionary-Tenth Edition^ as revised. 

202 DEFINITION OF TERMS 

ACCESS COVER - a removable plate, usually secured by 
bolts or screws, to permit access to a pipe or pipe fitting for 
the purposes of inspection, repair or cleaning. 

ACCESSIBLE - having access to but which first may 
require the removal of a panel, door or sirpilar covering of the 
item described. See Readily Accessible. 



ISTRATIVE AUTHORITY - see Plumbing 



Official. 



AIM BREAK (DRAINAGE SYSTEM) - a piping 
arrangement in which a drain from a fixture, device, 
appliance or apparatus discharges indirectly into a sink or 
other receptor with the indirect waste pipe terminating at a 
point below the flood level rim of the receiving sink or other 
receptor. An unobstructed horizontal distance of free 
atmosphere between the outside of the indirect waste pipe 
and the inside of the receiving sink or other receptor must 
exist so as to allow a back-flow of sewage to spill over the 
flood level rim of the receiving sink or other receptor to 
prevent such back-flow from reaching the fixture, device, 
appliance or apparatus served by the indirect waste pipe. 



AIR GAP (DRAINAGE SYSTEM) - the unobstructed 
vertical distance through the free atmosphere between the 
outlet waste pipe and the flood level rim of the receptacle into 
which it is discharging. 

AIR GAP (WATER DISTRIBUTION) - in a water supply 
system, the unobstructed vertical distance through the free 
atmosphere between the lowest opening from any pipe or 
faucet supplying water to a tank, plumbing fixture or other 
device and the flood-level rim of the receptacle. 

ANCHORS- see Supports. 

AND/OR - in a choice of two code provisions, signifies that 
use of both provisions will satisfy the code requirement and 
use of either provision is acceptable also. 

ANTI-SCALD VALVE (see Scald Preventative Valve) 

APPROVED - approved by the plumbing official or other 
authority having jurisdiction. 

AREA DRAIN - a receptacle designed to collect surface or 
rain water from an open area. 

BACKFLOW - the flow of water or other liquids, mixtures, 
or substances into the distribution pipes of a potable supply 
of water from any source or sources other than its intended 
source. See Back-Siphonage. 

BACKFLOW CONNECTION - any arrangement whereby 
backflow can occur. 

BACKFLOW PREVENTER - a device which prevents the 
reverse flow of water due to atmospheric or higher pressure 
by means of positive check members in addition to 
atmospheric ports which provide back-siphonage protection. 

BACK-SIPHONAGE - the flowing back of used, 
contaminated, or polluted water from a plumbing fixture or 
vessel into a water supply pipe due to a negative pressure in 
such pipe. See Backflow. 

BACK WATER VALVE - a device (check valve) installed 
in a drain or pit or in the sewer or drainage system to prevent 
sewage or drainage from backing into low levels through 
fixtures or devices not installed sufficiently above sewer or 
drainage systems. 

BATTERY OF FIXTURES - any group of two or more 
similar adjacent fixtures which discharge into a common 
horizontal waste or soil branch. 



Louisiana State Plumbing Code, 2000 edition© 



BATTERY VENTING - the horizontal wet venting of a 
number of individual fixture drains, connected horizontally to 
a branch soil or waste pipe which is circuit or loop vented. 

BOILER BLOW-OFF - an outlet on a boiler to permit 
emptying or discharge of sediment. 

BRANCH - any part of the piping system other than a main, 
riser, or stack. 

BRANCH, FIXTURE = see Fixture Branch. 

BRANCH, HORIZONTAL - see Horizontal Branch. 

BRANCH INTERVAL = a length of soil or waste stack 
corresponding in general to a story height, but in no case less 
than 8 ft (2438 mm) within which the horizontal branches from 
one floor or story of a building are connected to the stack. 

BRANCH VENT = a vent connecting one or more individual 
vents with a vent stack or stack vent. 

BUILDING - a structure built, erected, and framed of 
component structural parts designed for the housing, shelter, 
enclosure, or support of persons, animals, or property of any 
kind. 

BUILDING CLASSIFICATION - the arrangement in the 
Standard Building Code for the designation of buildings in 
classes based upon their use or occupancy. 

BUILDING DRAIN - that part of the lowest piping of a 
drainage system which receives the discharge from soil, 
waste and other drainage pipes inside the walls of the 
building and conveys it to the building sewer 3 ft (914 mm) 
outside the building wall. 

BUILDING SEWER - that part of the horizontal piping of a 
drainage system which extends from the ends of the building 
drain and which receives the discharge of the building drain 
and conveys it to a public sewer, private sewer, individual 
sewage-disposal system or other point of disposal. 

BUILDING STORM DRAIN - a building drain used for 
conveying rain water, surface water, ground water, 
subsurface water, condensate, cooling water or other similar 
discharge to a building storm sewer, extending to a point not 
less than 3 ft (914 mm) outside the building wall. 

BUILDING (HOUSE) STORM SEWER - the extension 
from the building storm drain to the public storm sewer or 
other point of disposal. 

BUILDING (HOUSE) SUBDRAIN = that portion of a 
drainage system which cannot drain by gravity into the 
building sewer. 

BUILDING (HOUSE) TRAP = a device, fitting, or 
assembly of fittings installed in the building drain to prevent 
circulation of air between the drainage system of the building 
and the building sewer. 



CIRCUIT VENT - a branch vent that serves two or more 
traps and extends from in front of the last fixture connection 
of a horizontal branch to the vent stack. 

COMBINATION FIXTURE - a fixture combining one sink 
and tray or a two or three-compartment sink or tray in one 
unit. 

COMBINATION WASTE AND VENT SYSTEM - a 

specially designed system of waste piping embodying the 
horizontal wet venting of one or more sinks or floor drains by 
means of a common waste and vent pipe adequately sized to 
provide free movement of air above the flow line of the drain. 

COMMON VENT - a vent connecting at the junction of two 
fixture drains and serving as a vent for both fixtures. 

CONDUCTOR = see Leader. 

CONTINUOUS VENT - a vertical vent that is a 
continuation of the drain to which it connects. 



CONTINUOUS WASTE 
connected to a single trap. 



a drain from two or three fixtures 



CRITICAL LEVEL - the minimum elevation above the 
flood level rim of the fixture or receptacle served at which the 
device may be installed. The critical level marking on a 
backflow prevention device or vacuum breaker is a point 
established by the manufacturer to an accepted standard 
usually stamped on the device by the manufacturer. When a 
backflow prevention device does not bear a critical level 
marking, the bottom of the vacuum breaker, combination 
valve or the bottom of any approved device shall constitute 
the critical level. 

CROSS CONNECTION - any physical connection or 
arrangement between two otherwise separate piping systems, 
one of which contains potable water and the other, water of 
unknown or questionable safety, whereby water may flow 
from one system to the other, the direction of flow depending 
on the pressure differential between the two systems. See 
Backflow and Back-Siphonage. 



CROWN OF TRAP 

trap outlet. 



the topmost point of the inside of a 



DEAD END - a branch leading from a soil, waste, or vent 
pipe, building drain, or building sewer, which is terminated at 
a developed distance of 2 ft (610 mm) or more by means of a 
plug or other closed fitting. 

DEPTH OF WATER SEAL - the depth of water which 
would have to be removed from a fully charged trap before 
air could pass through the trap. 

DEVELOPED LENGTH - the length of a pipe along the 
center line of the pipe and fittings. 



Louisiana State Plumbing Code, 2000 edition® 



DIAMETER - the nominal diameter as designated 
commercially, unless otherwise stated. 

DOMESTIC - connected with supply and service to man 
and activities of his household, private residences, offices, 
and institutions. Water for and liquid waste from lavatories, 
water closets, tubs and showers, kitchens, sinks, and 
laundries are considered domestic. 

DOUBLE OFFSET - two changes of direction installed in 
succession or series in continuous pipe. 

DOWNSPOUT - see Leader in 11 02 . 

DRAIN - any pipe which carries waste water or waterborne 
wastes in a building drainage system. 

DRAINAGE PIPING • see Drainage System. 

DRAINAGE SYSTEM - all the piping within public or 
private premises, which conveys sewage, rain water, or other 
liquid wastes to a legal point of disposal, but not including 
the mains of a public sewer system or private or public 
sewage treatment or disposal plant. 

DURHAM SYSTEM - a term used to describe soil or waste 
systems where all piping is of threaded pipe, tubing, or other 
such rigid construction, using recessed drainage fittings to 
correspond to the types of piping. 

EFFECTIVE OPENING - the minimum cross-sectional 
area at the point of water supply discharge (or indirect waste 
pipe discharge), measured or expressed in terms of (1) 
diameter of a circle, or (2) if the opening is not circular, the 
diameter of a circle of equivalent cross-sectional area. 
Applicable to air gap. 

EXISTING WORK - a plumbing system or any part thereof 
which has been installed prior to the effective date of this 
code. 

FIXTURE BRANCH - a pipe connecting several fixtures. 

FIXTURE DRAIN - the drain from the trap of a fixture to 
the junction of that drain with any other drain pipe. 

FIXTURE SUPPLY ■ a water supply pipe connecting the 
fixture with the fixture branch. 

FIXTURE UNIT - a quantity in terms of which the load- 
producing effects on the plumbing system of different kinds 
of plumbing fixtures are expressed on some arbitrarily chosen 
scale. 

FIXTURE UNIT FLOW RATE - the total discharge flow 
in gallons per minute of a single fixture divided by 7.5 which 
provides the flow rate of that particular plumbing fixture as a 
unit of flow. Fixtures are rated as multiples of this unit flow. 
(One gallon per minute equals 0.0631 liters per second.) 



FLOOD LEVEL RIM 

which water overflows. 



the top edge of the receptacle from 



FLOOR DRAIN - a plumbing fixture for recess in the floor 
having a floor level strainer intended for the purposes of the 
collection and disposal of waste water used in cleaning the 
floor and for the collection and disposal of accidental spillage 
to the floor. This definition does not include floor sinks and 
indirect liquid waste receptors. 

FLOOR SINK - a type of indirect liquid waste receptor 
designed with a removable basket strainer or beehive strainer 
for the purpose of receiving the discharge from indirect liquid 
waste pipes only. This classification does not include floor 
drains with floor level strainers only but may include 3-inch 
(76 mm) drains with floor level strainers which incorporate 
funnel drains as an integral part thereof. 

FLUSH TANK - a tank located above or integral with water 
closets, urinals, or similar fixtures for the purpose of flushing 
the usable portion of the fixture. 

FLUSH VALVES - a device located at the bottom of the 
tank for the purpose of flushing water closets and similar 
fixtures. 

FLUSHOMETER TANK - a device integrated within an air 
accumulation vessel which is designed to discharge a 
predetermined quantity of water to fixtures for flushing 
purposes. 

FLUSHOMETER VALVE - a device which discharges a 
predetermined quantity of water to fixtures for flushing 
purposes and is actuated by direct water pressure. 

FROSTPROOF CLOSET - a hopper that has no water in 
the bowl and has the trap and the control valve for its water 
supply installed below the frost line. 

GANG SHOWER - two or more showers in a common area = 
within an institutional building. i 

GRADE - the slope or fall of a line of pipe in reference to a 
horizontal plane. In drainage it is usually expressed as the fall 
in a fraction of an inch per foot length of pipe. 

GREASE INTERCEPTOR - an interceptor of less than 125 f 

gallon capacity which is designed and installed so as to i 

separate and retain grease and which is generally installed | 

indoors entirely above grade. = 

GREASE TRAP - an interceptor of at least 125 gallon | 

capacity which is designed and installed so as to separate and | 

retain grease and which is generally installed below grade = 

outdoors with provisions for above grade accessibility for = 

cleaning purposes. i 

HANGERS - see Supports. 



Louisiana State Plumbing Code, 2000 edition® 



HORIZONTAL BRANCH - a drain pipe extending laterally 
from a soil or waste stack or building drain, with or without 
vertical sections or branches, which receives the discharge 
from one or more fixture drains and conducts it to the soil or 
waste stack or to the building (house) drain. 

HORIZONTAL PIPE - any pipe or fitting which makes an 
angle of more than 45 degrees (0.785 rad) with the vertical. 



by a master plumber and is in the employ of an employing 
entity, [see LSA - R.S. 37:1377(8)] 

LEADER - the water conductor (downspout) from the roof 
to the building storm drain or other means of disposal. 

LEAD FREE PIPE AND FITTINGS - containing not more 
than 8.0% lead. 



HOUSE DRAIN - see Building Drain. 
HOUSE SEWER = see Building Sewer. 
HOUSE TRAP - see Building Trap. 



INDIRECT WASTE RECEPTOR - a plumbing fixture 
designed specifically to collect and dispose of liquid waste 
from other plumbing fixtures, plumbing equipment or 
appliances which are required to discharge to the drainage 
system through an air gap. The following type fixtures fall 
within the classification of indirect liquid waste receptors: 
Floor sinks, mop receptors, service sinks, and standpipe 
drains with integral air gaps, and may include others when 
approved as such by the plumbing official. 

INDIRECT WASTE PIPE - a pipe that does not connect 
directly with the drainage system but conveys liquid wastes 
by discharging into a plumbing fixture or receptacle which is 
directly connected to the drainage system. 

INDIVIDUAL SEWAGE DISPOSAL SYSTEM = a system 
for disposal of domestic sewage by means of a septic tank or 
mechanical treatment, designed for use apart from a public 
sewer to serve a single establishment or building. To be 
approved by the plumbing official. 

INDIVIDUAL VENT - a pipe installed to vent a fixture trap 
and which connects with the vent system above the fixture 
served or terminates in the open air. 

INDUSTRIAL WASTES = liquid wastes resulting from the 
processes employed in industrial establishments and free of 
fecal matter. 

INSANITARY = as opposed to "sanitary"; deficient in 
sanitation; unclean to a degree to be injurious to health; 
careless or dangerous hygienic conditions; contrary to 
sanitary principles. 

INTERCEPTOR - an automatic or manual device designed 
and installed to separate and retain deleterious, hazardous, or 
undesirable matter from normal wastes for proper disposal, 
rendering or recycling, and also permits normal sewage and 
liquid wastes to discharge into the disposal terminal by 
gravity. 

JOURNEYMAN PLUMBER - a natural person who 
possesses the necessary qualifications and knowledge to 
install, alter and/or repair plumbing systems; is licensed as 
such by the Louisiana State Plumbing Board; is supervised 
6 



LEAD FREE SOLDER AND FLUX 

than 0.2% lead. 



containing not more 



LISTED - equipment or materials included in a list published 
by an approved nationally recognized testing laboratory, 
inspection agency or other organization concerned with 
product evaluation that maintains periodic inspection of 
production of listed equipment or materials, and whose listing 
states either that the equipment or material meets nationally 
recognized standards or has been tested and found suitable 
for use in a specified manner. The means for identifying 
listed equipment may vary for each testing laboratory, 
inspection agency, or other organization concerned with 
product evaluation, some of which do not recognize 
equipment as listed unless it is also labeled. The plumbing 
official should utilize the system employed by the listing 
organization to identify a listed product. 

LIQUID WASTE - the discharge from any fixture, 
appliance, or appurtenance, in connection with a plumbing 
system which does not receive fecal matter. 

LOAD FACTOR - the percentage of the total connected 
fixture unit flow rate which is likely to occur at any point in 
the drainage system. It varies with the type of occupancy, the 
total flow unit above this point being considered, and with the 
probability factor of simultaneous use. 

LOOP VENT - same as a circuit vent except that it loops 
back and connects with the stack vent instead of the vent 
stack. 

MAIN - the principal artery of any system of continuous 
piping, to which branches may be connected. 

MAIN SEWER - see Public Sewer. 

MAIN VENT - the principal artery of the venting system, to 
which the vent branches may be connected. 

MASTER PLUMBER - a natural person who possesses the 
necessary qualifications and knowledge to plan and lay out 
plumbing systems; who supervises journeyman plumbers in 
the installation, alteration and/or repair of plumbing systems 
and who is licensed as such by the Louisiana State Plumbing 
Board, [see LSA - R.S. 37: 1377(A)] 

MAY - the word "may" is a permissive term. 

NONPOTABLE WATER - in addition to its ordinary 
meaning, includes water of questionable potability on the 
Louisiana State Plumbing Code, 2000 edition© 



• 



discharge side of a backflow preventer used to isolate a 
portion of a water supply system from the remainder of the 
water supply system due to backflow connections. 

NUISANCE • public nuisance as known at common law or 
in equity jurisprudence; and whatever is dangerous to human 
life or detrimental to health; whatever building, structure, or 
premises is not sufficiently ventilated, sewered, drained, 
cleaned, or lighted, in reference to its intended or actual use; 
and whatever renders the air or hiiman food or drink or water 
supply unwholesome. 

OFFSET - a combination of elbows or bends in a line of 
piping which brings one section of the pipe out of the line but 
into a line parallel with the other section. 

PERMIT HOLDER - any person required to obtain a permit 
to do plumbing work in accordance with state, parish, city or 
other local laws or ordinances. (Where such permits are not 
available, the property owner, contractor and installer shall be 
jointly responsible for the installation being in compliance 
with the requirements of this Code and, where applicable, 
may all be considered permit holders as the term is used in 
this Code.) 

PERSON - a natural person, his heirs, executors, 
administrators, or assigns; and includes a firm, partnership or 
corporation, its or their successors or assigns, the state of 
Louisiana or any of its political subdivisions, the United 
States government or any of its political subdivisions and any 
officer, employee and agent of one of those entities. Singular 
includes plural; male includes female. 

PITCH - see Grade. 

PLUMBING - the practice, materials and fixtures used in the 
installation, maintenance, extension and alteration of all 
piping fixtures, appliances and appurtenances in connection 
with any of the following: Sanitary drainage or storm 
drainage facilities, the venting system and the public or 
private water supply systems, within or adjacent to any 
building, structure or conveyance; also the practice and 
materials used in the installation, 'maintenance, extension or 
alteration of medical gas piping,; medical vacuum piping, 
storm water, liquid waste or sewage, and water supply 
systems of any premises to their conriection with any point of 
public disposal or other acceptable terminal. Plumbing does 
not include the installation, alteration, repair or maintenance 
of automatic sprinklers and their related appurtenances 
including standpipes when connected to automatic sprinklers 
and including the underground or overhead water supply 
beginning at the outlet of an approved backflow prevention 
device installed under the plumbing provisions of this code 
where water is to be used or is intended for use exclusively 
for fire protection purposes. 

PLUMBING APPURTENANCE - manufactured device, or 
a prefabricated assembly, or an on-the-job assembly of 
component parts, which is an adjunct to the basic piping 
system and plumbing fixtures. An appurtenance demands no 
Louisiana State Plumbing Code, 2000 edition® 



additional water supply, nor does it add any discharge load to 
a fixture or the drainage system. It is presumed that it 
performs some useful fuiiction in the operation, maintenance, 
servicing, economy, or safety of the plumbing system. 

PLUMBING FIXTURES - are installed receptacles, 
devices, or appliances which are supplied with water or 
which receive or discharge liquids or liquid-borne wastes, 
with or without discharge into the drainage system with 
which they may be directly or indirectly connected. 

PLUMBING INSPECTOR -see Plumbing Official. 

PllUMBING OFFICIAL - the State Health Officer and any 
individual official, board, department or agency established 
and authorized by a state, parish, city or other political 
subdivision created by law to administer and enforce the 
provisions of the Plumbing Code as adopted or amended. 

PLUMBING SYSTEM - includes the water-supply and 
distribution pipes; plumbing fixtures and traps; soil, waste 
and vent pipes; building drains and building sewers including 
their respective connections, devices and appurtenances 
within the property lines of the premises; water treating or 
water using equipment; and medical gas and medical vacuum 
piping and equipment. 

POTABLE WATER - water having bacteriological, 
physical, radiological and chemical qualities that make it safe 
and suitable for human drinking, cooking and washing uses. 

PRESSURE - the normal force exerted by a homogenous 
liquid or gas, per unit of area, on the wall of the container. 
Pressure, Static - the pressure existing without any flow. 
Pressure, Flowing - the residual pressure in the water 
supply pipe at the faucet or water outlet while the faucet or 
water outlet is wide open and flowing. 
Pressure, Residual - the pressure available at the fixture 
or water outlet after allowance is made for pressure drop 
due to friction loss, head, meter and other losses in a 
system during maximum demand periods. 

PRIVATE OR PRIVATE USE - in the classification of 
plumbing fixtures, private applies to fixtures in residences or 
apartments and similar installations where the fixtures are 
intended for the use of a family or an individual. 

PRIVATE SEWER - a sewer privately owned and not 
directly controlled by public authority. 

PUBLIC OR PUBLIC USE - in the classification of 
plumbing fixtures, public applies to fixtures in general, toilet 
rooms of schools, gymnasiums, hotels and motels, airports, 
bus and railroad stations, office buildings, public buildings, 
stadiums, department and mercantile stores, public comfort 
stations, bars, restaurants, commercial buildings or places to 
which the public is invited or which are frequented by the 
public without special permission or special invitation, and 
other installations (whether pay or free) where a number of 
fixtures are installed so that their use is similarly unrestricted. 

7 



PUBLIC SEWER - a common sewer directly controlled by 
public authority. 

READILY ACCESSIBLE = having direct access without 
the need of removing any panel, door or similar covering of 
the item described and without requiring the use of portable 
ladders, chairs, etc. See Accessible. 

RELIEF VENT - a vent whose primary function is to 
provide circulation of air between drainage and vent systems. 

RESIDENTIAL BUILDINGS - buildings in which families 
or households live and in which cooking and sleeping 
accommodations are provided for each family or household 
unit independently, and in which no area within the building 
is used or occupied for any other purpose except that such 
buildings may have central washing facilities, as permitted in 
Chapter 4. 

RETURN OFFSET = a double offset installed so as to return 
the pipe to its original alignment. 

REVENT PIPE - that part of a vent pipe line which connects 
directly with an individual waste or group of wastes, underneath 
or in back of the fixture and extends either to the main or branch 
vent pipe. Sometimes called an individual vent. 

RISER - a water supply pipe which extends vertically one 
full story or more to convey water to branches or fixtures. 

ROOF DRAIN - a drain installed to receive water collecting 
on the surface of a roof and to discharge it into the leader 
(downspout). 



N - the installation of all parts of the 
plumbing system which can be completed prior to the 
installation of fixtures. This includes drainage, water supply, 
and vent piping, and the necessary fixture supports. 

SAND INTERCEPTOR - see Interceptor. 

SANITARY - for or relating to the preservation or 
restoration of health; associated with measures or equipment 
for improving conditions that influence health; free from or 
effective in preventing or checking an agent injurious to 
health; a water closet, urinal, or similar equipment fitted with 
appropriate plumbing for the purpose of conducting 
wastewater to a point of collection and treatment prior to 
discharge. 

SANITARY SEWER - a pipe which carries sewage and 
excludes storm, surface and ground water. 

SCALD=FREVENTAT1VE VALVE = (1) a pressure 
balancing valve which senses incoming hot and cold water 
pressures and compensates for fluctuations in either to 
stabilize outlet temperature; (2) a thermostatic valve which 
senses outlet temperature and compensates for fluctuations in 
incoming hot and cold water temperatures and pressures to 
stabilize outlet temperature; or (3) a combination 
8 



thermostatic/pressure balancing valve which senses outlet 
temperature and incoming hot and cold water pressures and 
compensates for fluctuations in incoming hot and cold water 
temperatures and pressures to stabilize outlet temperature. 

SCUPPER = an opening in a wall or parapet that allows 
water to drain from a roof 

SEPARATOR - see Interceptor. 

SEPTIC TANK = a watertight receptacle which receives the 
discharge of a drainage system or part thereof, and is 
designed and constructed so as to separate solids from the 
liquid, digest organic matter through a period of detention, 
and allow the liquids to discharge into the soil outside of the 
tank through a system of open-joint or perforated piping, or 
disposal pit. 

SEWAGE = any liquid waste containing animal or vegetable 
matter in suspension or solution and may include liquids 
containing chemicals in solution. 

SHALL - the word "shall" is a mandatory term. 

SIDE VENT = a vent connecting to the drain pipe through a 
fitting at an angle not greater than 45 degrees (0.785 rad) to 
the vertical. 

SLIP JOINT - a mechanical type joint used primarily on 
fixture traps: the joint tightness is obtained by compressing a 
friction type washer such as rubber, nylon, neoprene, lead or 
special packing material against the pipe by the tightening of 
a (slip) nut. 

SLOPE - see Grade. 

SOIL PIPE - any pipe which conveys the discharge of water 
closets or fixtures having similar functions, with or without 
the discharge from other fixtures, to the building drain or 
building sewer. 

SOLVENT CEMENT - an adhesive (solvent) or mixture of 
adhesives which when applied to the surface of pipe and 
fittings will soften and fuse the plastic resin or compound of 
resins. Pipes and fittings are then joined causing the surfaces 
to unite forming a liquid tight joint. 

SPECIAL WASTE PIPE - see Chapter 8. 

SPILL-PROOF VACUUM BREAKER - an assembly 
consisting of one (1) check valve force-loaded closed and an 
air inlet valve force-loaded open to atmosphere, positioned 
downstream of the check valve. 

STACK = the vertical main of a system of soil, waste or vent 
piping. 

STACK GROUP - a term applied to the location of fixtures 
in relation to the stack so that by means of proper fittings, 
vents may be reduced to a minimum. 

Louisiana State Plumbing Code, 2000 edition® 



• 



STACK VENT - the extension of a soil or waste stack above 
the highest horizontal drain connected to the stack. 
Sometimes called waste vent or soil vent. 

STACK VENTING - a method of venting a fixture or 
fixtures through the soil or waste stack. 

STATE HEALTH OFFICER - means the legally appointed 
and/or acting State Health Officer as defined in R.S. 40:2 and 
includes his/her duly authorized technical representative; 
however, in the case of variances allowed under section 105, 
this term shall mean the State Health Officer acting 
personally or any such person that the State Health Officer 
has personally designated to duly sign such variances in 
his/her behalf. 

STORM DRAIN - see Building Storm Drain. 

STORM SEWER - a sewer used for conveying rain water, 
surface water, condensate, cooling water or similar liquid 
wastes. 

SUBSOIL DRAIN - a drain which receives only subsurface 
or seepage water and conveys it to a place of disposal. 

SUMP - a tank or pit which receives sewage or liquid waste, 
located below the normal grade of the gravity system and 
which must be emptied by mechanical means. 



VENT PIPE - see Vent System. 

VENT STACK - a vertical vent pipe installed primarily for 
the purpose of providing circulation of air to and from any 
part of the drainage system. 

VENT SYSTEM - a pipe or pipes installed to provide a flow 
of air to or from a drainage system or to provide a circulation 
of air within such system to protect trap seals from siphonage 
and back pressure. 

VERTICAL PIPE - any pipe or fitting which is installed in 
a vertical position or which makes an angle of not more than 
45 degrees (0.785 rad) with the vertical. 

WASH RACK - a floor or slab area with floor drain used for 
cleaning containers and equipment exposed to organic wastes 
of food origin. 

WASTE - see Liquid Waste and Industrial Wastes. 

WASTE PIPE - a pipe which conveys only liquid waste, free 
of fecal matter. 

WATER DISTRIBUTION PIPE - the piping within a 
building or structure which conveys cold or hot water from 
the water service pipe to the plumbing fixtures and other 
water outlets. 



SUPPORTS - supports, hangers and anchors are devices for 
supporting and securing pipe and fixtures to walls, ceilings, 
floors or structural members. 

TRAILER TRAP - a device, fitting or assembly of fittings 
installed in the building sewer for a travel trailer or 
mobile/manufactured home which is used to prevent the 
circulation of air between the building sewer and the drainage 
system of the individual travel trailer or mobile/manufactured 
home. 

TRAP - a fitting or device so designed and constructed as to 
provide, when properly vented, a liquid seal which will 
prevent the back passage of air without materially affecting 
the flow of sewage or waste water through it. 

TRAP PRIMER - an approved device designed to deliver a 
sufficient amount of water to a seldom used trap. 

TRAP SEAL - the maximum vertical depth of liquid that a 
trap will retain, measured between the crown weir and the top 
of the dip of the trap. 

TRAP SEAL PRIMER VALVE (see Trap Primer) 

UNSTABLE GROUND - earth that does not provide a 
uniform bearing for the barrel of the sewer pipe between the 
joints at the bottom of the pipe trench. 

VACUUM BREAKER - a device which prevents back- 
siphonage of water by admitting atmospheric pressure 
through ports to the discharge side of the device. 



WATER HEATER - an appliance for supplying potable hot 
water for domestic or commercial purposes. 

WATER MAIN - a water supply pipe or system of pipes, 
installed and maintained by a city, township, county or public 
utility company, on public property, in the street or approved 
dedicated easement for public or community use. 

WATER OUTLET - as used in connection with the water 
distribution system, the discharge opening for the water (1) to 
a fixture; (2) to atmospheric pressure (except into an open 
tank which is part of the water supply system); (3) to a boiler 
or heating system; (4) to any water-operated device or 
equipment, but not a part of the plumbing system. 

WATER RISER PIPE - see Riser. 

WATER SERVICE PIPE - the pipe from the water main, 
water meter, water supply system or other approved source of 
water supply, to the building or structure served. 

WATER SUPPLY SYSTEM - the water supply piping that 
is installed and maintained by the owner or owners on the 
premises or private property from the discharge side of the 
meter, the water main or other approved sources of water 
supply. This system includes the necessary connecting pipes, 
fittings, control valves, all appurtenances connected thereto, 
and includes fire protection piping if not installed as a 
separate system. 



Louisiana State Plumbing Code, 2000 edition® 



WET VENT = a vent which receives the discharge from 
wastes other than water closets. 

YOKE VENT = a pipe connecting upward from a soil or 
waste stack to a vent stack for the purpose of preventing 
pressure changes in the stacks. 



10 Louisiana State Plumbing Code, 2000 edition® 



CHAPTER 3 

GENERAL REGULATIONS 



301 GENERAL 

301.1 Scope 

The provisions of this chapter shall govern the general 
regulations not specific to other chapters. 

301.2 Basic Principles 

The basic principles of this code are enunciated as basic goals 
in environmental sanitation worthy of accomplishment 
through properly designed, acceptably installed and 
adequately maintained plumbing systems. Some of the details 
of plumbing construction must vary, but the basic sanitary 
and safety principles are the same. The principles may serve 
to define the intent. 

301.2.1 Principle Number 1 (moved from 601.2) 

Buildings, structures and premises intended for human 
habitation, occupancy, usie of employment, or the 
preparation or processing of food, drinks or other 
materials for human consumption shall be provided with 
an adequate, safe and potable water supply through a safe 
system of piping to all fixtures, appliances, appurtenances, 
etc. 

301.2.2 Principle Number 2 (moved from 701.2) 
Every building having plumbing fixtures installed and 
intended for human habitation, occupancy or use on 
premises abutting on a street, alley or easement in which 
there is a public sewer shall have a separate connection 
with the sewer. 

301.2.3 Principle Number 3 (moved from 401.2) 

A dwelling type building provided with a drainage system, 
a public sewer connection or a private sewage disposal 
system shall have at least one (1) water closet, one (1) 
bathtub or shower, one (1) lavatory, one (1) kitchen-type 
sink and an adequate source of hot water for each family 
unit to meet minimum basic requirements for health, 
sanitation and personal hygiene. Water heating facilities 
shall be accessible for emergency maintenance without 
entering any individual apartment or living unit, except 
that water heaters may be located within an apartment or 
living unit when supplying hot water to that unit only. All 
other buildings, structures or premises intended for human 
occupancy or use shall be provided with adequate sanitary 
facilities as may be required, but not less than one (1) 
water closet and one ( 1 ) lavatory. 

301.2.4 Principle Number 4 (moved from 401.3) 

Plumbing fixtures shall be made of smooth nonabsorbenl 
material, shall be free from concealed fouling surfaces, 
and shall be located in ventilated enclosures. 

301.2.5 Principle Number 5 (moved from 401.4) 

Each fixture directly connected' to the sanitary drainage 
system shall be equipped with a water-seal trap. 

Louisiana State Plumbing Code, 2000 edition© 



301.2.6 Principle Number 6 (moved from 301.3) 

No substance which will clog the pipes, produce explosive 
mixtures, destroy the pipes or their joints or interfere unduly 
with the sewage-disposal process shall be allowed to enter 
the building drainage system. 

301.2.7 Principle Number 7 (moved from 801.2) 
Proper protection shall be provided to prevent 
contamination of food, water, sterile goods and similar 
materials by backflow of sewage. When necessary, the 
fixture, device or appliance shall be connected indirectly 
with the building drainage system. 

301.2.8 Principle Number 8 

No water closet shall be located in a room or compartment 
which is not properly lighted and ventilated. 

301.2.9 Principle Number 9 (moved from 701.3) 

If water closets or other plumbing fixtures are installed in 
buildings where there is no sewer within a reasonable 
distance, suitable provision shall be made for disposing of 
the building sewage by some accepted method of sewage 
treatment and disposal. 

301.2.10 Principle Number 10 (moved from 701.4) 
Where a plumbing drainage system may be subject to 
backflow of sewage, suitable provisions shall be made to 
prevent its overflow in the building. 

301.2.11 Principle Number 11 (moved from 301.2) 
Plumbing shall be installed with due regard to 
preservation of the strength of structural members and 
prevention of damage to walls and other surfaces through 
fixture usage. 

301.2.12 Principle Number 12 (moved from 701.5) 
Sewage or other waste, from a plumbing system, which 
may be deleterious to surface or subsurface waters shall 
not be discharged into the ground or into any waterway 
unless it has first been rendered innocuous through 
subjection to some acceptable form of treatment. 

301.2.13 Principle Number 13 (moved from 601.3) 

Plumbing fixtures, devices, appliances and appurtenances 
shall be adequately supplied with water in sufficient 
volume and pressure to enable them to function properly. 

301.2.14 Principle Number 14 (moved from 601.4) 

The pipes conveying water to plumbing fixtures, 
appliances, devices and appurtenances shall be of 
sufficient size as to supply water at rates that will prevent 
undue pressure drops at any one fixture, when any other 
fixture, appliance, device or appurtenance or group is 
being flushed, operated or used. 



11 



30L2J5 Principle Number 15 (moved from 601.5) 
There shall be no direct or indirect cross connections, 
either existing or potential, between a safe potable water 
supply and an unsafe, nonpotable supply. 

301.2.16 Principle Number 16 (moved from 601.6) 
Adequate protection shall be provided to prevent possible 
backflow or back-siphonage of an unsafe or potentially 
hazardous fluid or material into a safe water supply. 

301.2.17 Principle Number 17 (moved from 601.7) 
Piping and connections of the plumbing system shall be of 
durable materials, free from defects in workmanship and 
materials, and systems shall be designed and constructed 
to provide adequate service for a reasonable life under 
stresses imposed by structural loading, temperature 
variation, vibration and other conditions. 

301.2.18 Principle Number 18 (moved from 501.2) 
Devices for heating and storing water shall be designed 
and installed to prevent all danger from overheating and 
explosion and to prevent undue flow of hot water or steam 
into the cold water supply pipes. 

30L2.19 Principle Number 19 (moved from 801.3) 
Refrigerators, coolers, receptacles, sterilizers, vats and 
similar equipment used for storing or holding foods, 
beverages, sterile goods and water conditioning 
equipment, etc., shall discharge into the building drainage 
system through an indirect waste. 

301.2.20 Principle Number 20 (moved from 404.3) 
Water closets, bathtubs, showers, urinals and similar 
fixtures shall be suitably enclosed and screened for 
privacy. 

301.2.21 Principle Number 21 (moved from 301.4) 
Plumbing systems, including fixtures, shall be maintained 
in sanitary condition and proper working order. 

301.2.22 Principle Number 22 (moved from 701.3) 
Sewage and wastes from plumbing and drainage systems 
shall be adequately treated and disposed of in accordance 
with the requirements of the plumbing official. 

301.5 Repairs aii^d Alterations 

301.5.1 Existing Buildings. In existing buildings or 
premises in which plumbing installations are to be altered, 
repaired, or renovated, necessary deviations from the 
provisions of this code may be permitted, provided such 
deviations conform to the intent of the code and are 
approved in writing by the plumbing official. 

301.5.2 Healtlh or Safety. Wherever compliance with all 
the provisions of this code fails to eliminate or alleviate a 
nuisance which may involve health or safety hazards, the 
owner or his agent shall install such additional plumbing 
or drainage equipment as may be necessary to abate such 
nuisance. 



12 



301.6 Workmanship 

Workmanship shall conform to generally accepted good 
practice. 

301.7 Rodent-Proofing 

301.7.1 Exterior Openings. All exterior openings 
provided for the passage of piping shall be properly sealed 
with snugly fitting collars of metal or other approved 
rodent-proof material securely fastened into place. 

301.7.2 Interior Openings. Interior openings through 
walls, floors, and ceilings shall be rodent-proofed as found 
necessary by the plumbing official. 

301.8 Used Equipment 

It shall be unlawful to install used equipment or material for 
plumbing installations unless it complies with the minimum 
standards set forth in this code and is approved by the 
plumbing official. 

301.9 Condemned Equipment 

Any plumbing equipment condemned by the plumbing 
official because of wear, damage, defects, or sanitary hazards 
shall not be reused for plumbing purposes. 

301.10 Drainage Below Sewer Level 

Drainage piping located below the level of the sewer shall be 
installed in accordance with Chapter 7. 

301.11 Connections to Plumbing System 

301.11.1 Connections to Drainage System. All 

plumbing fixtures, drains, appurtenances and appliances 
used to receive or discharge liquid wastes or sewage shall 
be directly connected properly to the drainage system of 
the building or premises, in accordance with the 
requirements of this code. This section shall not be 
construed to prevent indirect waste systems provided for 
in Chapter 8. 

301.11.2 Connections to Water Supply. Every plumbing 
fixture or device or appliance requiring or using water for 
its proper operation shall be directly or indirectly 
connected to the water supply system in accordance with 
the provisions of this code. 

302 DEFINITIONS 

The following definitions have been moved to Chapter 2: 
ANCHORS, HANGARS, LEAD FREE PIPE AND 
FITTINGS, LEAD FREE SOLDER AND FLUX. 

303 MATERIALS 

303.1 Minimum Standards 

Materials listed in this section are applicable to more than 
one chapter. Material requirements for specific systems and 
fixtures are noted in the specific chapters. Materials listed in 
this code shall conform at least to the standards cited when 
used in the construction, installation, alteration, or repair of 
any part of a plumbing and drainage system, except that the 
Louisiana State Plumbing Code, 2000 edition® 



• 



plumbing official shall allow the extension, addition, or 
relocation of existing soil, waste or vent pipes with materials 
of like grade, as permitted by this code. 

303.2 Use of Materials 

Where more than one standard is listed, the material shall 
conform to at least one of the standards cited opposite it. Its 
use shall be further governed by the requirements imposed in 
other chapters of the code. Materials not included in the table 
shall be used only as provided for in 303.1. Materials shall be 
free of manufacturing defects or damage, however 
occasioned, which would, or would tend to, render such 
materials defective, unsanitary, or otherwise improper to 
accomplish the purpose of this code. 

303.3 Specifications for Materials 

Standard specifications for general materials for plumbing 
installations are listed in Table 303, with specific material 
specifications listed elsewhere in this code. Products 
conforming at least to any one of the specifications listed for 
a given material shall be considered acceptable. 

303.3.1 Abbreviations used in Table 303, and with the 
specific materials as listed elsewhere in this code refer to 
standards or specifications as identified below. Addresses 
are listed in 1403. 

AGA - American Gas Association 

ANSI - American National Standards Institute, Inc. 

ARI - Air-Conditioning & Refrigeration Institute 

ASME - American Society of Mechanical Engineers 

ASSE - American Society of Sanitary Engineering 

ASTM - American Society for testing Materials 

AWS - American Welding Society 

AWWA - American Water Works Association 

CDA - Copper Development Association, Inc. 

CISPI - Cast Iron Soil Pipe Institute 

CAN/CSA - Canadian Standards Association 

FHA-MPS - Federal Housing Administration - Minimum 

Property Standards 

FMRC - Factory Mutual Research Corporation 

FS - Federal Specifications obtained from the General 

Services Administration, Federal Supply Service, 

Specification Section 

MSS - Manufacturers Standardization Society of the 

Valve and Fittings Industry, Inc. 

NFiPA - National Fire Prevention Association 

NSF - NSF International 

NSPI - National Spa and Pool Institute 

PDI - Plumbing and Drainage Institute 

PPFA - Plastic Pipe & Fittings Association 

PPI - Plastics Pipe Institute 

PS - Product Standard by the United States Department of 

Commerce and obtained from the Superintendent of 

Documents, Government Printing Office 

UL - Underwriters Laboratories, Inc. 

303.3.2 ASTM Standards are issued under fixed 
designations; the final number shown in Chapter 14 
indicates the year of original adoption, or in the case of 
Louisiana State Plumbing Code, 2000 edition® 



revision, the year of last revision. "T" indicates Tentative. 
In the "CS" series of standards, also, the final number 
indicates the year of issue. 



Table 303 
General Materials 




MATERIALS 


STANDARDS 


PLASTIC MATERIALS 

Acelals 


ASTM D 2133 


Acrylics 


ASTM D 788 


Fluorocarbon 


ASTM D 1457 


Nylon 


ASTM D 789 


PLASTIC CEMENT AND SOLVENTS 

ABS-sblvenl cement 


ASTM D 2235, Usted 


Making solvent-cement joints witti 
pdy (Vinyl chloride) (PVC) 
pipe and fittings 


ASTM D 2855 


Primers for use in solvent cemented 
joints of polyvinyl ctiloride (PVC) 
plastic pipe and fittings 


ASTM F 656 


PVC solvent cement 


ASTM D 2564, Usted 


Sale handling of solvent cements 
used for joining thermoplastic 
pipe and fittings 


ASTM F 402 


Solvent cements lor chlorinated - 
polyvinyl chloride (CPVC) 
plastic pipe and fittings 


ASTM F 493 


PLASTIC PIPE INSTALLATION 

Electrofusion joining polyolefin 
pipe and fittings 


ASTM F 1290, See 612.5 


Heat joining polyolefin pipe 
and fittings 


ASTM D 2657. See 612.5 


Underground installation of flexible 
thermoplastic sewer pipe 


ASTM D 2321 


Underground Installation of thermo- 
plastic pressure piping 


ASTM D 2774 


VALVES 

Pressurized fixture flushing 
devices (flushometers) 


ANSI/ASSE 1037 


METAL SHEET 

Brass, sheet 


ASTM B 248 


Copper, sheet 


ASTM B 152 


Lead, sheet 


FSQQ-L-201F(2) 


Steel sheet, zinc-coated galvanized 
by the hot-dip process 


ASTMA653/A653M 



(continued) 



13 



Table 303 (continued) 
General Materials 



MATERIALS 


STANDARDS 


MISCELLANEOUS 

Automatic flow controllers 


ASSE 1028 


Brazing filler metal 


ASTMB260 


Cement lining 


ANSI/AWWAC104/A21.4 


Cleanouts (Metallic) 


ASMEA112.36.2M 


Coal-Tar Enamel and Tape (Protective Coaling) 


ANSI/AWWAC203 


Compression Gasket, C.I. Soil Pipe 


ASTM C 564, CISPI HSN 


Couplings used in Cast Iron Systems 


ASTMC564 
(Gasket Material Only), 
CISPI 310, FMRC 1680 
ASTM C 1277 


Diverters for Plumt)ing Faucets witfi 
Hose Spray, Anti-Sipfion Type 
Residential Application 


ANSI/ASSE 1025 


Drinking Water Treatment Units 
Health Effects 
Aesthetic Effects 


ANSI/NSF 53 
ANSI/NSF 42 


Fixed Flow Restrictors 


ASSE 1034 


Flexible Transition Couplings for 
Underground Piping Systems 


ASTM C 1173 


Floor Drains 


ASMEA112.21.1M 


Grooved and Shouldered Type Joints 


ANSI/AWWAC606 


Handheld Showers 


ASSE 1014 


Lalwratory Faucet Vacuum Breaker 


ASSE 1035 


Liquid and Paste Fluxes for Soldering 
Applications of Copper and Copper Alloy Tube 


ASTM B 813 


Making Copper Soldered Joints 


ASTM 6 828 


Oil Resistant Gaskets 


ASTM C 443 


Plastk; Toilet (Water Closet) Seats 


ANSI Z124.5 


P.V.C. Transition 
Fittings, Testing 


ASTM D 395. 

ASTM D 412. See 707.4 


Reverse Osmosis Drinking Water Treatment Systems 


ANSI/NSF 58 


Roof Drains 


ASMEA112.21.2M 


Rubber Rings lor Asbestos Cement Pipe 


ASTM D 1869, See 308.5 


Solder Metal 


ASTM 832 


Supports for Off-the-Floor Plumbing 
Fixtures for Public Use 


ANSIA112.6.1M 


Wail Hydrants. Frost Resistant, 
Automafk: Draining, Anti-Backflow Type 


ASSE 1019 



303.4 Idenitification of Materials 

Each length of pipe and each pipe fitting, trap, fixture and 
device used in a plumbing system shall be marked in 
accordance with the approved applicable standard to which it 
is manufactured. 

303.5 InstallatJoini of MaterJaJs 

All materials used shall be installed in strict accordance with 
the Standards under which the materials are accepted and 
approved, including the appendices which are related to 
installation. In the absence of such installation procedures, 
the manufacturer's published procedures or recommendations 
shall be followed. 

303.6 Water Piping Quality 

All potable water pipes, pipe related products and materials 
that join or seal pipes and pipe related products shall be 
evaluated and listed as conforming with a national consensus 
product (or material) standard and ANSI/NSF Standard 61. 



303.7 Special Materials 

303.7.1 Lead. See Table 303. Sheet lead shall be not less 
than the following: 

1. For safe pans - not less than 4 psf (19.5 kg/m^) 
coated with an asphalt paint or equivalent. 

2. For flashings of vent terminals - not less than 3 psf 
(14.6kg/m2). 

3. Lead bends and lead traps shall be not less than 1/8- 
inch (3.18 mm) wall thickness. 

4. Any pipe, solder or flux which is used in the 
installation or repair of any plumbing in a residential 
or nonresidential facility providing water for human 
consumption shall be lead free with not more than 
0.2% lead in solders and flux and not more than 
8.0% lead in pipes and fittings. This does not apply 
to leaded joints necessary for the repair of cast iron 
pipes. 

303.7.2 Copper. Sheet copper shall be not le.ss than the 
following: 

1. Safe pans - 12 oz per sq ft (3.7 kg/m^). 

2. Vent terminal flashings - 8 oz per sq ft (2.4 kg/m^). 

303.7.3 Caulking Ferrules. Caulking ferrules shall be 
manufactured from bronze, wrought copper, or brass and 
shall be in accordance with Table 303.7.3. 

Table 303.7.3 
Caulking Ferrules 

Pipe Size Inside Diameter Length Minimum Weight 
(In) (In) (In) Each 



2 


21/4 


41/2 


llbOoz 


3 


31/4 


41/2 


1lb12oz 


4 


41/4 


4 1/2 


2lb8oz 



1 in = 25.4 mm 
1 lb = 0.4536kg 

303.7.4 Soldering Bushings. Soldering bushings where 
permitted shall be of red brass in accordance with Table 
303.7.4. 

Table 303.7.4 
Soldering Bushings 



Pipe Size 
(In) 



Minimum Weight 
Each 



11/4 

1 1/2 

2 

21/2 

3 

4 



6oz 
8oz 
14 oz 
1lb6oz 
2lb0oz 
3 lb 8 oz 



1 in = 25.4 mm 
1 lb = 0.4536 kg 

303.7.5 Floor Flanges 

303.7.5.1 Floor flanges for water closets or similar 
fixtures shall be not less than 1/8 inch (3.18 mm) thick 
for brass 1/4 inch (6.35 mm) thick and not less than 2- 
inch (5 1 mm) caulking depth for cast iron or galvanized 



14 



Louisiana State Plumbing Code, 2000 edition© 



• 



malleable iron. Flanges shall be of the approved type. 
Offset closet flanges shall be prohibited, except by 
approval of the plumbing official. Closet screws and 
bolts shall be of brass. 

303.7.5.2 Flanges shall be soldei-ed to lead bends, or 
shall be caulked, soldered of threaded to other metal. 
Plastic flanges shall be joined to plastic closet bends 
with the approved solvent cement. 

.7.6 Cleanouts 

303,7.6.1 Cleanouts shall have plugs of brass and shall 
conform to ASTM A 74. Cleanouts may also have 
plugs of approved nylon plastic. Plugs may have raised 
square or countersunk heads except countersunk head 
shall be used where raised heads may cause a hazard. 



5.7.6.2 Cleanout plugs with borosilicate glass 
systems shall be of borosilicate glass. 

303,7.7 Nonmetallic Shower Pans 

303.7.7.1 Plasticized polyvinyl chloride (PVC) sheet 
shall be a minimum of 0.040 inch (1.02 mm) thick, and 
shall meet the requirements of ASTM D 4551. Sheets 
shall be joined by solvent welding in accordance with 
the manufacturer's published recommendations. 

303.7.7.2 Nonplasticized chlorinated polyethylene 
sheet shall be a minimum 0.040 inch (1.02 mm) thick. 
Sheets shall be joined by solvent welding in accordance 
with the manufacturer's published recommendations, 
and shall meet the requirements of 303.8.3. 



ik 



• 



5.7.7.3 All shower pan material approved in Table 
303 shall be permanently marked by the manufacturer 
so as to enable the inspecting authority to determine the 
acceptability of the material and its identification 
according to the code. This marking is to be 
conveniently readable to the inspector when the 
material is in its installed position. 

1 Limitations of Use of Materials 
8.2 Plastic Pipe and Fittings Pressure Rated for 

Water Service Pipe 

303.8.2.1 In Table 303 and Table 603, 4-digit numbers 
listed under "Materials" column represent the ASTM 
identification numbers assigned to these materials by 
the joint ASTM-NSF-PPl committee to assist in quick, 
easy identification of the rnaterials. The numbers 
appear as a part of the marking on the pipe and tubing. 
These and no others are approved. 

303.8.2.2 All plastic pipe and fittings approved in this 
code shall be properly marked as specified by their 
respective standards. All material shall be installed in 
accordance with the applicable ASTM standards. No 
materials shall be commingled within the same system 
except those which are specifically approved in writing 
in the respective standards. 



303.8.2.3 Existing metallic water .service piping used 
for electrical grounding shall not be replaced with 
nonmetallic pipe or tubing until other grounding means 
are provided which are satisfactory to the proper 
administrative authority having jurisdiction. 

303.8.3 Plastic Pipe and Fittings for Drain, Wastes And 
Vents 

303.8.3.1 Installations for plumbing drainage, waste 
and vents both above and below ground, indirect Waste 
and storm drains shall conform to applicable standards 
listed in Table 303 and Table 703 and in conformity 
with Sections 706 and 707 of the Standard Building 
Code. 

303.8.3.2 There shall be no commingling of different 
materials except through proper adapters. In all cases, 
approved solvent cement designated for the particular 
material shall be used. 

303.8.3.3 Coextruded pipe with a cellular core and 
solid wall ABS DWV and PVC DWV plastic pipe shall 
be IPS Schedule 40 when used for drain, wastes and 
vents. 

303.8.4 Stainless Steel Water Tube. Stainless steel water 
tube for above ground use shall conform to the standards 
listed in Table 603. 

303.8.5 Plastic Pipe for Drains and Sewers 

303.8.5.1 Coextruded PVC plastic pipe shall have a 
pipe stiffness of 25 (PS 25) when used for storm 
sewers, storm drains, foundation drains, and subsoil 
drains. 

303.8.5.2 Coextruded PVC plastic pipe shall have a 
pipe stiffness of 50 (PS 50) when used for outside 
building sewers, storm drains, and storm sewers in 
accordance with 704.1, 1101.5, 1103.3 and 1103.4. 

303.8.6 Plastic Piping Components and Related 
Materials. All plastic plumbing pipes, plastic plumbing 
piping components and related materials shall be listed as 
conforming with ANSI/NSF Standard 14. 

304 PROTECTION OF PIPES 

304.1 Breakage and Corrosion 

Pipes passing under or through walls shall be protected from 
breakage. Pipes passing through concrete or cinder walls and 
floors or other corrosive material shall be protected against 
external corrosion by a protective sheathing or wrapping or 
other means that will withstand any reaction from lime and 
acid of concrete, cinder or other corrosive material. Sheathing 
or wrapping shall allow for expansion and contraction of 
piping to prevent any rubbing action. Minimum wall 
thickness of material is to be 0.025 inch (0.635 mm). 



Louisiana State Plumbing Code, 2000 edition© 



15 



.2.1 Annular spaces between sleeves and pipes shall be 
filled or tightly caulked as approved by the plumbing 
official. 



L2.2 Annular spaces between sleeves and pipes in fire 
rated assemblies shall be filled or tightly caulked in 
accordance with the Standard Building Code. 

304.3 Pipes Through Footisigs or Foundation Walls 

A soil pipe, waste pipe, or building drain that passes under a 
footing or through a foundation wall shall be provided with a 
relieving arch, or a pipe sleeve of schedule 40 pipe shall be 
built into the masonry wall. Such sleeve shall be two pipe 
sizes greater than the pipe passing through or as may be 
approved in writing by the plumbing official. 

304.4 Minimum Depth of Water Piping Outside of Building 
Water piping outside the building line shall be installed not 
less than 12 inches (305 mm) deep. 



1.5 Trench Location 
Trenching installed parallel to footings shall not extend 
below the 45° (0.785 rad) bearing plane of the footing or wall 
unless approved by the plumbing official. 

304.6 Waterproofing of Openings 

Joints at the roof, around vent pipes, shall be made watertight 
by the use of lead, copper, galvanized steel, aluminum, 
plastic or other approved flashings or flashing material. 
Exterior wall openings shall be made watertight. 



1.7 Pipes in Wood Construction 
Where cutting, notching, or boring occurs within 1 1/2 inches 
(38 mm) of the face of wooden joists, rafters, or studs, a 
protective steel plate 1/16 inch (1.59 mm) thick shall be used 
to protect the piping. The steel plate shall be the full width of 
the member and shall extend at least 2 inches (51 mm) on 
each side of the cut, bore, or notch. 

EXCEPTION: A protective plate is not required for cast iron, 
galvanized or black steel, and Grade H stainless steel pipe. 

30S TRENCHING, EXCAVATION AND BACKFILL 

305.11 Support of Piping 

Buried piping shall be supported throughout its entire length. 

305.2 Open Trenches 

All excavations required to be made for the installation of a 
building drainage system, or any part thereof within the walls 
of a building, shall be open trench work and shall be kept 
open until the piping has been inspected, tested and accepted. 

305.3 Mechanical Excavation 

Trenches shall be properly graded and tamped to support the 
load of the pipe installation. 



305.5 Tunneling 

Where necessary, pipe may be installed by tunneling, jacking 
or a combination of both. In such cases, special care shall be 
exercised to protect the pipe from damage either during 
installation or from subsequent uneven loading. Where earth 
tunnels are used, adequate supporting structures shall be 
provided to prevent future settling or caving. Pipe may be 
installed in larger conduit which has been jacked through 
unexcavated portions of the trench. 

305.6 Single Trench Prohibited 

Water service pipes or any underground water pipes shall not 
be run or laid in the same trench as the building sewer or 
drainage piping, except as provided for in Chapters 6 and 7. 

306 STRUCTURAL SAFETY 

306.1 General 

In the process of installing or repairing any part of a 
plumbing and drainage installation, the finished floors, walls, 
ceilings, tile work or any other part of the building or 
premises which must be changed or replaced shall be left in a 
safe structural condition in accordance with the requirements 
of the Standard Building Code. 

306.2 Cutting, Notching and Boring 

306.2.1 Notches on the ends of joists shall not exceed one- 
fourth the depth. Holes bored for pipes Or cable shall not 
be within 2 inches (51 mm) of the top or bottom of the 
joist, and the diameter of any such hole shall not exceed 
one-third of the depth of the joist. Notches for pipes in the 
top or bottom of joists shall not exceed one-sixth of the 
depth and shall not be located in the middle one-third of 
the span. 

306.2.2 In exterior walls and bearing partitions, any wood 
stud may be cut or notched to a depth not exceeding 25% 
of its width. Cutting or notching of studs to a depth not 
greater than 40% of the width of the stud is permitted in 
nonbearing partitions supporting no loads other than the 
weight of the partition. 

306.2.3 A hole not greater in diameter than 40% of the 
stud width may be bored in any wood stud. Bored holes 
not greater than 60% of the width of the stud are permitted 
in nonbearing partitions or in any wall where each bored 
stud is doubled provided not more than two such 
successive double studs are so bored. 

306.2.4 In no case shall the edge of the bored hole be 
nearer than 5/8 inch (15.9 mm) to the edge of the stud. 
Bored holes shall not be located at the same section of 
stud as a cut or notch. 



305.4 ijsacKitii 

Adequate precaution shall be taken to insure proper 
compactness of backfill around piping without damage to 
such piping. See Appendix I. 



16 



Louisiana State Plumbing Code, 2000 edition® 



• 



307 FITTINGS 

1 Change in Direction 

307.1.1 Changes in direction in drainage piping shall be 
made by the appropriate use of 45° (0.785 rad) wyes, 
long-or-short-sweep quarter bends, one-sixth, one-eighth, 
or one-sixteenth bends, or by a eombination of these or 
equivalent fittings. Single and dbuble sanitary tees and 
quarter bends may be used in drainage lines only where 
the direction of flow is from the horizontal to the vertical. 

307.1.2 Changes in direction in Schedule 40 DWV-PVC 
and ABS drainage piping shall be made by the appropriate 
use of 45° (0.785 rad) wyes, quarter bends or long sweep 
quarter bends, one-sixth, one-eighth, or one-sixteenth 
bends, or by a combination of these or equivalent fittings. 
Single and double sanitary tees and quarter bends may be 
used in drainage lines only where the direction of flow is 
from the horizontal to the vertical. 



307.2 Short Sweeps 

Short sweeps not less than 3-inch diameter may be used in 
soil and waste lines where the change in direction of flow is 
from the horizontal to the vertical and may be used for 
making necessary offsets between the ceiling and the next 
floor above. 

307.3 Prohibited Fittings 

A straight tee branch shall not be used as a drainage fitting. A 
saddle type fitting or running threads shall not be used in the 
drainage or vent system. Drainage or vent piping shall not be 
drilled or tapped unless approved by the plumbing official. A 
fitting having a hub in the direction opposite to flow shall not 
be used in the drainage system', unless the pipe is cut by 
either a saw or snap cutter, which will assure clean, smooth 
cuts of the pipe. Double sanitary tee pattern fittings shall not 
receive the discharge of fixtures or appliances with pumping 
action discharge. 

307.4 Heel or Side Inlet Bend Prohibited 

Heel or side inlet quarter bend fittings shall not be used in the 
drainage or vent system. 

307.5 Obstruction to Flovy 

A fitting or connection which offers abnormal obstruction to 
flow shall not be permitted. See 709. 

307.6 Increasers and Reducers 

Where different sizes of pipes or pipes and fittings are to be 
connected, the proper size increasers or reducers or reducing 
fittings shall be used between the two sizes. 

308 TYPES OF JOINTS 

308.1 Tightness 

Joints and connections in the plumbing system shall be 

gastight and watertight for the pressure required by test, with 

the exceptions of those portions of perforated or open-joint 

piping which are installed for the purpose of collecting and 

conveying ground or seepage water to the underground storm 

drains. 

Louisiana State Plumbing Code, 2000 edition® 



308.2 Threaded Joints 

Threaded joints shall conform to ASME B 1.20.1. All burrs 
shall be removed. Pipe ends shall be reamed or filed out to 
size of bore, and all chips shall be removed. Pipe-joint 
cement and sealing compound shall be used only on male 
threads and be insoluble and nontoxic. All pipe-joint sealants 
for use on potable water piping shall be listed and labeled by 
an approved testing laboratory. 

308.3 Wiped Joints 

Joints in lead pipe or fittings, or between lead pipe or fittings 
and brass or copper pipe, ferrules, solder nipples, or traps, 
shall be full-wiped joints. Wiped joints shall have an exposed 
surface on each side of a joint not less than 3/4 inch (19.1 
mm) and at least as thick as the material being jointed. Wall 
or floor flange lead-wiped joints shall be made by using a 
lead ring or flange placed behind the joints at wall or floor. 
Joints between lead pipe and cast iron or steel shall be formed 
by means of a caulking ferrule, soldering nipple, or bushing. 

308.4 Flexible Couplings 

Flexible couplings may be used to join plain ends of similar 
or dissimilar pipes and the flexible coupling shall consist of 
an approved gasket that is attached to the pipe with special 
adjustable stainless steel clamps and bolts. (See 707.4.) The 
flexible couplings and the approved gasket shall be oil 
resistant. 

308.5 Precast Joints 

Precast collars shall be formed on the spigot and in the bell of 
the pipe in advance of use. Materials shall be resistant to 
acids, alkalies and oils, and precast joints shall conform to the 
requirements of ASTM C 425, and upon installation shall be 
tested as provided in this code. 

308.6 Cement Mortar Joints and Connections 

308.6.1 Except for repairs and connections to existing 
lines constructed with such joints, cement mortar joints are 
prohibited. 

308.6.2 Where permitted, cement mortar joints shall be 
made in the following manner: A layer of jute or hemp 
shall be inserted into the base of the annular joint space 
and packed tightly to prevent mortar from entering the 
interior of the pipe or fitting. Not more than 25% of the 
annular space shall be used for jute or hemp. The 
remaining space shall be filled in one continuous 
operation with a thoroughly mixed mortar composed of 
one part cement and two parts sand, with only sufficient 
water to make the mixture workable by hand. Additional 
mortar of the same composition shall then be applied to 
form a one to one slope with the barrel of the pipe. The 
bell or hub of the pipe shall be swabbed to remove any 
mortar or other material which may have found its way 
into such pipe. 

308.7 Burned Lead Joints 

Burned (welded) lead joints shall be lapped and the lead shall 
be fused together to form a uniform weld at least as thick as 
the lead being jointed. 



17 



308.8 Joints for Plastic Pipe and Fittings 

308.8.1 ABS and PVC pipe and fittings shall be solvent 
cemented using the proper cement recommended for the 
particular materials. All pipe cuts shall be square and both 
pipe and fittings shall be cleaned of all soil, dirt, oil and 
grease before applying primer or cement. Solvent joints 
made for pressure applications shall use primers and 
cements that are in compliance with the applicable ASTM 
standards. All solvent joints shall be made in accordance 
with the applicable ASTM standards and shall be allowed 
to dry before testing. Should any leak occur on water test, 
the defective joint shall be replaced. All solvent cements 
and primers shall comply with requirements of the 
ANSI/NSF 14 and shall be labeled to identify the 
laboratory certifying compliance for the particular cement 
and primer being used. 



.8.2 Plastic pipe and fittings for sewer and water 
pressure lines may also be joined by use of elastomeric 
joints when the respective standards for the materials so 
specify. Joints shall conform to the standards listed in 
either Table 603 or Table 703, as applicable, for 
elastomeric joints. 

308.9 Grooved or Plain End Mechanical Couplings and 
Fittings 

Grooved or plain end mechanical couplings and fittings may 
be used. Pipe is to be prepared in accordance with 
manufacturer's specifications. 

308.10 Water Supply and Distribution Systems 
Additional provisions for water supply and distribution 
systems are located in 612. 

308.11 Sanitary Drainage Systems 

Additional provisions for sanitary drainage systems are 
located in 706. 

309 USE OF JOINTS 

309.1 Threaded Pipe to Cast Iron 

Joints between steel, brass, or copper pipe, and cast iron pipe 
shall be either caulked or threaded, formed as provided in 

308.2 and 706.2, or shall be formed with approved adapter 
fittings. 



309.2 Lead to Cast Iron or Steel 

Joints between lead and cast iron or steel pipe shall be formed 
by means of wiped joints and a caulking ferrule, soldering 
nipple, or bushing as provided in 308.3. 



installers meeting the requirements of ASME Boiler and 
Pressure Vessel Code, Section IX, Welding and Brazing 
Qualifications, or ANSI/A WS B 2.2, Brazing Procedure and 
Performance Qualification, as referenced in Chapter 14. 

309.5 Slip Joints 

In drainage piping, slip joints may be used on both sides of 
the trap and in the trap seal. Slip joints in water piping may 
be used on the exposed fixture supply only. 

309.6 Expansion Joints 

Expansion joints must be accessible and may be used where 
necessary to provide for expansion and contraction of the 
pipes. 

309.7 Mechanically Formed Tee Connections 

309.7.1 Mechanically extracted collars shall be formed in 
a continuous operation consisting of drilling a pilot hole 
and drawing out the tube surface to form a collar having a 
height not less than three times the thickness of the tube 
wall. 

309.7.2 The branch shall be notched to conform with the 
inner curve of the run tube and dimpled to insure that 
penetration of the branch tube into the collar is of 
sufficient depth for brazing and that the branch tube does 
not obstruct the flow in the main line tube. 

309.7.3 All joints shall be brazed in accordance with 
612.4. Soft soldered joints shall not be permitted. 

310 HANGERS AND SUPPORTS 

310.1 General 

310.1.1 Strains and Stresses. Piping in a plumbing 
system shall be installed without undue strains or stresses 
and provision shall be made for expansion, contraction, 
and structural settlement. 

310.1.2 Material. Hangers and anchors for support of 
pipe shall be of sufficient strength to maintain their 
proportionate share of the pipe alignment and to prevent 
sagging. Hangers shall be of a materia! which is 
compatible with the pipe and will not promote galvanic 
action. 

310.1.3 Attachment. Hangers and anchors shall be 
securely attached to the building construction. 



309.3 Connection! of Dissimilar Metals 
There shall be no commingling of materials except through 
the use of proper fittings that make different kinds of metal 
pipe compatible. 



310.2 Vertical Piping 

310.2.1 Attachment. Vertical piping shall be secured at 
sufficiently close intervals to keep the pipe in alignment 
and carry the weight of the pipe and contents. 



309.4 Welding or Brazing 

Brazing or welding shall be performed in accordance with 
requirements of recognized published standards of practice 
and by licensed or otherwise qualified mechanics. All brazing 
on medical gas sy.stems shall be performed by certified 

18 



310.2.2 Cast Iron Soil Pipe. Cast iron soil pipe shall be 
supported at the base and at each story level at intervals 
not exceeding 15 ft (4572 mm). 

310.2.3 Threaded Pipe. Threaded pipe shall be supported 

Louisiana State Plumbing Code, 2000 edition© 



at the base and at not less than every other story at 
intervals not exceeding 30 ft (9144 mm). 

310.2.4 Copper Tube. Copper tube shall be supported at 
each story for piping 1 1/2 inches and over and at not 
more than 4 ft (1219 mm) intervals for piping 1 1/4 inches 
and smaller. 



stacks shall be supported to the satisfaction of the 
plumbing official. 

310.5.2 Piping Material. Other piping material shall be so 
anchored as to take the load off the stack at the base. 

311 TESTS 



310.2.5 Lead Pipe. Lead pipe shall be supported at 
intervals not exceeding 4 ft (1219 mm). 

310.2.6 Plastic Pipe. Plastic piping shall be supported at 
each story for piping 2 inches or over and not more than 4 
ft (1219 mm) intervals for piping 11/2 inches or under. 

310.2.7 Borosilicate Glass Pipe. Borosilicate glass pipe 
shall be supported at every floor for 3-inch, 4-inch and 6- 
inch diameter vertical runs andi at every other floor for 
sizes 2 inches and smaller. Padded riser clamps with 1/4 
inch (6.35 mm) thick elastomer padding shall be used, 
restricting sideward as well as downward movement. 

310.3 Horizontal Piping 

310.3.1 Supports. Horizontal piping shall be supported at 
sufficiently close intervals to keep it in alignment and 
prevent sagging. 

310.3.2 Cast Iron Soil Pipe. Cast iron soil pipe shall be 
supported at not more than 5 ft (1524 mm) intervals on 5 
ft (1524 mm) lengths and 10 ft (3048 mm) intervals on 10 
ft (3048 mm) lengths. Hangers shall be located as near 
hubs as possible. 

310.3.3 Threaded Pipe. Threaded pipe shall be supported 
at approximate 12 ft (3658 mm) intervals. 

310.3.4 Copper Tubing. Copper tube shall be supported 
at approximate 8 ft (2439 mm) intervals for tubing 1 inch 
and smaller and 10 ft (3048 mm) intervals for tubing 1 1/4 
inches and larger. 

310.3.5 Lead Pipe. Lead pipe shall be supported by strips 
or otherwise for its entire length. 

310.3.6 Plastic Pipe. Plastic piping shall be supported at 
not more than 4 ft (1219 mm) inteirvals. 

310.3.7 Borosilicate Glass Pipe. Borosilicate glass pipe 
shall be supported in horizontal runs every 8 to 10 ft (2438 
to 3048 mm), never closer unless there are more than two 
joints in the 8 to 10 ft (2438 to 3048 mm) section. Padded 
hangers shall be used, of either the clevis or trapeze type. 

310.4 Repair or Replacement 

Piping in concrete or masonry walls or footings shall be 
placed or installed in chases or recesses which will permit 
access to the piping for repairs or replacement. 

310.5 Base of Stacks 

310.5.1 Supports. Bases of all soil stacks, waste and vent 

Louisiana State Plumbing Code, 2000 edition® 



311.1 Required Tests 

The permit holder shall make the applicable tests prescribed 
in 311.2 thru 311.5 to assure compliance with the provisions 
of this code. The permit holder shall give reasonable advance 
notice to the plumbing official when the plumbing work is 
ready for tests. The equipment, material, power, and labor 
necessary for the inspection and test shall be furnished by the 
permit holder and he is responsible for assuring that the work 
will withstand the test pressure prescribed in the following 
tests. All the piping of the plumbing system shall be tested 
with either water or air. After the plumbing fixtures have 
been set and their traps filled with water, the entire drainage 
system shall be submitted to final tests. The plumbing official 
may require the removal of any cleanouts to ascertain if the 
pressure has reached all parts of the system. 

311.2 Drainage and Vent Tests 

311.2.1 A water test shall be applied to the drainage 
system either in its entirety or in sections. If applied to the 
entire system, all openings in the piping shall be tightly 
closed, except the highest opening, and the system shall be 
filled with water to point of overflow. If the system is 
tested in sections, each opening shall be tightly plugged 
except the highest openings of the section under test, and 
each section shall be filled with water, but no section shall 
be tested with less than 10 ft head of water (29.9 kPa). In 
testing successive sections at least the upper 10 ft (3048 
mm) of the next preceding section shall be tested, so that 
no joint or pipe in the building (except the uppermost 10 ft 
(3048 mm) of the system) shall have been submitted to a 
test of less than a 10 ft head of water (29.9 kPa). The 
water shall be kept in the system, or in the portion under 
test, for at least 15 minutes before inspection starts; the 
system shall then be tight at all points. 

311.2.2 An air test shall be made by attaching an air 
compressor or testing apparatus to any suitable opening 
and, after closing all other inlets and outlets to the system, 
forcing air into the system until there is a uniform gage 
pressure of 5 psi (34.5 kPa) or sufficient to balance a 
column of mercury ten inches in height (33.8 kPa). This 
pressure shall be held without introduction of additional 
air for a period of at least 15 minutes. 

EXCEPTION: Cast iron soil pipe joined with 
compression gaskets or mechanical couplings shall be 
tested with 6 psi (41.4 kPa) of air and allowed a 1 psi 
(6.9 kPa) reduction in pressure or a two inch (50.8 mm) 
drop in the column of mercury in a 15 minute period. 

31L2.3 The final test of the completed drainage and vent 
system shall be visual and in sufficient detail to assure that 

19 



the provisions of this code have been complied with, 
provided, however, that, for cause, it may be necessary to 
subject the plumbing to either a smoke or peppermint test. 
Where the smoke test is preferred, it shall be made by 
filling all traps with water and then introducing into the 
entire system a pungent, thick smoke produced by one or 
more smoke machines. When the smoke appears at stack 
openings on the roof, they shall be closed and a pressure 
equivalent to a 1-inch water column (248.8 Pa) shall be 
maintained for 15 minutes before inspection starts. Where 
the peppermint test is preferred, 2 oz (59 mL) of oil of 
peppermint shall be introduced for each stack. 

311.3 Test off Water Supply System 

Upon completion of a section or of the entire water supply 
system, it shall be tested and proved tight under a water 
pressure not less than 200 psi (1379 kPa). The water used for 
tests shall be obtained from a potable source of supply. 

311.4 Test of Building Sewer 

311.4.r Gravity sewer tests shall consist of plugging the 
end of the building sewer at the point of connection with 
the public sewer, filling the building sewer with water, 
testing with not less than a 10 ft (3048 mm) head of water 
and maintaining such pressure until backfill is completed. 

311.4.2 Forced sewer tests shall consist of plugging the 
end of the building sewer at the point of connection with 
the public sewer and applying a pressure of 5 psi (34.5 
kPa) greater than the pump rating, and maintaining such 
pressure until backfill is completed. 

311.5 Test of Interior Leaders or Downspouts 

Leaders or downspouts and branches within a building shall 
be tested by water or air in accordance with 311.2.1 or 
311.2.2. 

311.6 Backffllow Prevention Devices 

Backflow prevention devices shall be tested in accordance 
with CAN/CSA 364.10 or ASSE 5010. 

312 APPENDIX REFERENCES 

Additional general provisions are contained in the following 
appendices: 

Appendix B - Travel Trailers and Travel Trailer Parks; 
Appendix C - Mobile/Manufactured Homes and 
Mobile/Manufactured Home Parks; and in Appendix G - 
Medical Facilities Plumbing Systems. These provisions are 
applicable only when they are referenced in the body of the 
code sections or when included in the adopting ordinance. 



20 



Louisiana State Plumbing Code, 2000 edition® 



CHAPTER 4 

PLUMBING FIXTURES 



401 GENERAL 

401.1 Scope 

The provisions of this chapter shall govern the materials, 
design, installation, and quality of fixtures. 

401.5 Prohibited Fixtures and Connections 

401.5.1 Fixtures. Pan, valve, plunger, offset, washout, 
latrine, frostproof and other water closets having an 
invisible seal or an unventilated space or having walls 
which are not thoroughly washed at each discharge, and 
floor type trough urinals shall be prohibited. Any water 
closet which might permit siphonage of the contents of the 
bowl back into the tank shall be prohibited (for example, 
low down tank type water closets, etc.). 



.5.2 Connections. Fixtures having concealed slip-joint 
connections shall be provided with an access panel or 
utility space so arranged as to make the slip connections 
accessible for inspection and repair. 

401.5.3 Limited Access. When access to waste and 
overflow fittings cannot be provided as required for slip 
joints in 401.5.2 or when bathtubs are set head-to-head, 
joints complying with 612.2 may be used. In such limited 
access cases, waste and overflow shall be of the straight- 
through type with overflow connecting to the tee branch 
which will allow the fixture, drain, and trap to be cleaned 
without disturbing concealed joints. Connections shall be 
inspected prior to concealment. 

402 DEFINITIONS 

The following definitions have been moved to Chapter 2: 
PRIVATE OR PRIVATE USE, PUBLIC OR PUBLIC USE. 

403 INSTALLATION 

403.1 Cleaning 

Plumbing fixtures shall be installed in a manner to afford 
easy access for cleaning. Where practical, all pipes from 
fixtures shall be run to the nearest wall. 

403.2 Joints 

Where a fixture comes in contact with a wall or floor, the 
joint shall be watertight. 

403.3 Wall-Hung Bowls 

Wall-hung water closet bowls shall be rigidly supported by a 
concealed metal supporting member so that no strain is 
transmitted to the closet connection. 

403.4 Setting 

Fixtures shall be set level and in proper alignment with 
reference to adjacent walls. No water closet or bidet shall be 
set closer than 15 inches (381 mm);from its center to any side 
wall or partition nor closer than 30 inches (762 mm) center- 
Louisiana State Plumbing Code, 2000 edition© 



to-center with adjacent fixtures. No urinal shall be set closer 
than 12 inches (305 mm) from its center to any side wall or 
partition nor closer than 24 inches (610 mm) center-to-center 
with adjacent urinal fixtures. See 708. 

403.5 Sanitation 

All public toilet room floor surfaces shall be of non- 
absorbent, impervious material. 

404 LOCATION OF FIXTURES 

404.1 Light and Ventilation 

404.1.1 Means of Ventilation 

404.1.1.1 Every restroom, bathroom or water closet 
combination shall be provided with ventilation by one 
or more operable windows opening to the outside of the 
building, by mechanical exhaust or by other means 
approved by the administrative authority. 

404.1.1.2 When an operable window opening to the 
outside of the building is used for ventilation, an insect 
mesh screen shall be installed on such opening. 

404.1.1.3 Public restrooms, bathrooms or water closet 
combinations shall be provided with ventilation by 
mechanical exhaust. When separate facilities for 
employees or staff of food service establishments, 
markets and retail food stores are provided, such 
facilities shall also be provided with ventilation by 
mechanical exhaust. 

404.1.2 Combustion Chambers 

The combustion chambers of all heaters, heating systems 
and other fired equipment shall be vented to the 
atmosphere. Other parts of the heating, cooling and 
ventilating system shall be so designed, built and 
maintained as to ensure that the pressure in the space from 
which combustion air is drawn does not become negative 
with respect to the atmosphere. 

404.1.3 Mechanical Exhaust 

All restrooms, bathrooms and water closet combinations 
which are ventilated by mechanical exhaust shall have 
fixed openings from adjacent room or corridors or from 
other approved sources, large enough to provide a 
sufficient inflow of air to make exhaust ventilation 
effective. Ventilation ducts from restrooms, bathrooms 
and water closet combinations shall be exhausted to the 
outside air or be connected into an independent system 
that exhausts to the outside air. 

404.1.4 Illumination Level 

Artificial lighting shall be installed in every restroom, 
bathroom or water closet combination sufficient to provide 
an illumination level of at least ten foot-candles, measured 
three feet off of the floor. 



21 



,1.5 Partitions 
Where a water closet is completely enclosed by partitions, 
such enclosure shall be separately lighted and ventilated. 



L2 Improper Location 

Piping, fixtures or equipment shall not be located in such a 

manner as to interfere with the normal operation of windows, 

I doors or other exit openings. Toilet rooms for public use shall 

"" not open directly into a room for the preparation of food for 

service to the public. 

• 

I 404,3 Toiet FacsJities for Construction Workers 

i Toilet facilities, of the type and in the quantity approved by 

1 the administrative authority, shall be provided and 

I maintained in a sanitary condition for the use of workmen 

I during construction. 

I 405 MATERIALS AND PERFORMANCE STANDARDS 

Plumbing fixtures shall be constructed from approved 
materials, have smooth impervious surfaces, be free from 
defects and concealed fouling surfaces. Except as permitted 
elsewhere in this code, plumbing fixtures shall conform to the 

I standards listed in Table 405, other than maximum flow 

i limitations. 



General Fixtures and Accessories 



MATERIALS 


STANDARDS 


Plumbing Fixture Fittings 


ASMEAI12.18.IM 


Flexible Water Connectors 


ASMEAl 12.18.6 


Fixtures, Enameled Cast Iron Plumbing 


ASMEA112.19.1M 


Fixtures, Non-Vitreous Ceramic (Fireclay) 


ASMEAl 12.19.9M 


Fixtures, Vitreous China Plumbing 


ASMEAH2.I9.2M 


Fixtures, Hydraulic Performance for 
Water Closets and Urinals 


ASMEAl 12.19.6 


Fixtures, Stainless Steel Plumbing 
(Designed for Residential Use) 


ASMEAl 12.19.3M 


Porcelain Enameled Formed Steel 
Plumbing Fixture 


ASMEAl 12. 19.4M 


Fixtures, Plumbing (for) L^nd Use, 
including Fixtures for Medical 
and Dental Facilities 


FS WW-P-541 E/GEN(1) 


Fixture-Setting Compound 


FS HH-C-536C 


Lead, Caulking 


FSQQ-L-156 


Plastic Bathtub Units 


ANS1Z124.I 


Plastic Lavatories 


ANSIZI24.3 


Plastic Sinks 


ANSI Zl 24.6 


Plastic Water Closet 
Bowls and Tanks 


ANS1Z124.4 


Trim for Water Closet Bowls, Tanks 
and Urinals 


ASMEAl 12.19.5 



Water Hammer Arresters 



ASSE 1010 



406 WATER CONSERVATION 

Plumbing fixtures and plumbing fixture fittings should 
conform to the following requirements. 

1. All faucets, showerheads and their packaging should be 
marked by the manufacturer in accordance with the 
provisions of ASME Standard A li2.18.1M listed in 
Table 405. Water closets and urinals and their 
packaging should be marked in accordance with the 
provisionsof ASME A 112.19.2M listed in Table 405. 

2. New or replacement water closets, and urinals, should 
not be installed with a flow rate or flush volume in 
excess of the maximum specified in Table 406, when 
tested in accordance with the provisions of the 
applicable ASME Standard listed in Table 405. 

Table 406 

Maximum Allowable 

Water Usage For Plumbing Fixtures^ 



Water closets, flushometer tank or 
close-coupled 2-piece gravity-flush type 

Water closets, one-piece 

Water closets, nonresidential application 

Urinals 



1 gpm = 0.0631 L/s 
I gallon = 3.7854 L 

Note: 

1. Maximum allowable water usage for plumbing fixtures and fixtiire fittings 
not listed in this table should conform to the applicable ANSI or ASME 
standard listed in Table 405. Blowout fixtures, panelwear, clinic sinks and 
service sinks shall be exempted from these limitations. 

407 MINIMUM PLUMBING FIXTURES 

407.1 General 

407.1.1 Restroom Plumbing FixtureSo Notwithstanding 
the provisions of section l:011(b) of the Louisiana State 
Sanitary Code, in new construction, substantial renovation 
or building additions and in changes of occupancy 
classification or real property ownership, at least the 
minimum type(s) of rest room plumbing fixtures provided 
for in this section shall be installed, and the minimum 
number of each type of restroom plumbing fixture shall be 
in accordance with Table 407. The term "substantial 
renovation" as used 407.1.1 includes, but is not limited to, 
a renovation/operational change which would trigger the 
need, pursuant to the requirements of Table 407, for 
additional restroom plumbing fixtures to be installed, even 
if the occupancy classification itself may not have 
changed. 



1.6 gal/flush 
1.6 gal/flush 
3.5 gal/flush 
1.0 gal/flush ^ 



22 



Louisiana State Plumbing Code, 2000 edition® 



407.1.2 Non-Restroom Plumbing Fixtures. Where the 
construction of buildings and facilities was approved by 
the State Health Officer pursuant to Sanitary Code 
requirements then in effect, upgrading of such buildings 
and facilities to comply with the non-restroom plumbing 
fixture requirements of Table 407 shall not be required 
except where: 

1. substantial renovation or building additions are 
undertaken, or 

2. where the occupant or real property ownership 
thereof or the occupancy classification located 
therein changes subsequent to the effective date 
hereof, or 

3. where a serious health threat to the public health 
exists, unless otherwise specifically provided 
hereinafter. 

The term "substantial renovation" as used in 407.1.2 
includes, but is not limited to, a renovation/operational 
change which would trigger the need, pursuant to the 
requirements of Table 407, for additional non-restroom 
plumbing fixtures to be installed, even if the occupant or 
the occupancy classification itself may not have changed. 

407.1.3 Except as may be otherwise specifically noted 
within Table 407, the number of occupants of a building 
shall be determined by the square feet of usable floor 
space. In determining the usable floor space, the square 
foot area of permanent structural building components, 
food service establishment kitchens, toilet rooms, 
corridors, stairways, vertical shafts and equipment rooms, 
when necessary for the operation of building utilities only, 
may be deducted from the total aggregate floor area. 

407.1.4 Tenancies, rental units or other usable areas 

1 . ■. ■ 

within a building when separated from the required toilet 
facilities by walls or partitions without common access 
openings shall be considered independently from the 
remainder of the building and shall be provided with 
separate facilities in accordance with this chapter 
regardless of the type of occupancy. 

407.1.5 In self-storage (mini-warehouse) complexes, 
facilities shall not be required in each building, but shall 
be located at the office or entrance and such that the 
plumbing official determines the intent of the code is 
satisfied (see 407.2). 



corridors from the area or areas they are intended to serve. 
Required facilities shall be free and designated by legible 
signs for each sex. Pay facilities may be installed when in 
excess of the required minimum facilities. 



• 



407.2 Table 407 — General 

407.2.1 In applying the schedule of facilities recorded in 
Table 407, consideration must be given to the accessibility 
of the fixtures. Conformity purely on a numerical basis 
may not result in an installation suitable to the need of the 
individual establishment. For example, schools should be 
provided with toilet facilities on each floor having 
classrooms. 

407.2.2 Every building and each subdivision thereof 
intended for public use shall be provided with facilities in 
accordance with this chapter. Required facilities shall be 
directly accessible to the public through direct openings or 

Louisiana State Plumbing Code, 2000 edition© 



23 



Table 407 
Minimum Plumbing Fixtures^ 



Building oo- 


Occupant 












Bathtubs, Showers 


Occupancy^ 


Contents 


Water Closets^ 




Lavatories'^ 




and Miscellaneous Fixtures 


Dwelling or 


Not 


1 for each dwelling 




1 for each dwelling 




Washing machine connection 


Apt. House 


Applicable 


or dwelling 


unit 




or dwelling unit 




per unit'. Bathtub or shower - 
one per dwelling or dwelling 
unit. Kitchen sink - one per 
dwelling or dwelling unit. 


Schools: 


Maximum 


Childiren 




Fixtures 


To be provided in the same 


Kitchen: 


Licensed 


Daily 


(total) 






proportions as the number of 


Children 


Pre-School, 


Attendance 








water closets required 




(total) 


Day Care or 






Age 0-4 years 










Nursery 




1-20 
21-40 




1 
2 


Kitchen: 




7-15 3 compartment sink 
(or approved domestic 






41-80 




3 


1 in each food preparation and 


or commercial 






. For each 






utensil washing area located to 


dishwashing 






additional 






permit convenient use by 


all 


machine aod a 2 






40 children 






food and utensil handlers 




compartment sink)" 






over 80, 










16-up 3 compartment sink 






add 




1 


Caring for Infants: 




(dishwashing machine, 
if provided, must be a 






Age 


5 years and above 




1 in or adjacent to each d 


aper 


commercial tyj»)" 












changing area but never to be 










Male 


Female 


located in a food 




One laundry tray, service sink, or 






1-40 


1 


1 


preparation/storage or utensil 


curbed cleaning facility with 






41-80 


1 


2 


washing area. 




floor drain on premises for 






81-120 


2 


3 






cleaning of mops/mop water 






121-160 


2 


4 






disposal. 






For each 
















additional 










Caring for Infants: 






40 females 
















over 160, 










One ex&a laundry tray, service 






add 




1 






sink, or similar fixture is required 






For each 










to clean and sanitize toilet 






additional 










training potties immediately after 






80 males 










each use. Such fixture shall be 






over 160, 










dedicated solely for this purpose 






add 


1 








and shall not be in the food 
preparation/storage, utensil 
washing, or dining areas. 


Schools: 


Maximum 


Persons 


Male 


Female 


Persons Male 


Female 


One drinking fountain for each 3 


Elementary 


Daily 


(total) 






(total) 




classrooms, but not less than one 


& 


Attendance 












each floor 


Secondary 
































1-50 


2 


2 


1-120 1 


1 








51-100 


3 


3 


121-240 2 


2 








101-150 


4 


4 


For each 










151-200 


5 


5 


additional 










For each 






1 20 persons 










additional 






over 240, add 1 


1 








50 persons 
















over 200, 
















add 


1 


1 








Office^ and 


100 sq ft 


Persons 


Male 


Female 


Persons Male 


Female 


Drinking Fountains 


Public 


per person 


(total) 






(total) 




Persons Fixtures 


Buildings^^ 










































I-IOO 1 






1-15 


1 


1 


1-15 1 


1 


101-250 2 






16-35 


1 


2 


16-35 1 


2 


251-500 3 






36-55 


2 


2 


36-60 2 


2 


No less than one fixture each 






56-100 


2 


3 


61-125 2 


3 


floor subject to access. 






101-150 


3 


4 


For each 










For each 






additional 










additional 






1 20 persons 










100 persons 






over 125. 










over 150, 






add 1 


1.5'' 








add 


1 


1.5' 









(continued) 



24 



Louisiana State Plumbing Code, 2000 edition® 



Table 407 
Minimum Plumbing Fixtures^ 



• 



Building or 


Occupant 














Bathtubs, Showers 


Occupancy^ 


Contents 


Water Closets^ 




Lavatories^ 


and Miscellaneous Fixtures 


Common 


Use the sq ft per ' 


Persons 


Male 


Female 


Persons 


Male 


Female 


Drinking Fountains 


toilet facilities 


person ratio 


(total) 






(total) 






Persons Fixtures 


for areas of 
commercial 


applicable to the 
single type 
















1-50 


2 


2 


1-15 


1 


1 


1-50 1 


buildings of 


occupancy(s) 


50-100 


3 


.3 


16-35 


1 


2 


101-250 2 


multiple tenants^-'-^' 


occupying the ' 


101-150 


4 


4 


36-60 


2 


2 


251-500 3 




greatest aggregate 


For each 






61-125 


2 


3 


501-1000 4 




floor area 


additional 






For each 






Not less than one 




(Consider 


100 persons 






additional 






Fixture each floor 




separately each 


over 150, 






120 persons 






subject to access. 




floor area of a 


add 


1 


1.57 


over 125, 










divided floor) 








add 


1 


1.57 




Retail 


200 sq ft 


Persons 


Male 


Female 


Persons 


Male 


Female 


Drinking Fountains 


Stores6-20,23 


per person 


(total) 






(total) 






Persons Fixtures 




1-35 


1 


1 


1-15 


1 


1 


1-100 1 






36-55 


1 


2 


16-35 


1 


2 ■ 


101-250 2 






56-80 


2 


3 


36-60 


1 


3 


251-500 3 






81-100 


2 


4 


61-125 


2 


4 


501-1000 4 






101-150 


2 


5 


For each 






Not less than one 






For each 






additional 






fixture each floor 






additional 






200 persons 






subject to access. 






200 persons 






over 125, 












over 150, 






add 


1 


1.757 


All Retail Food Markets: 






add 


1 


1.757 




















Retail Fwd Markets th»t ulso 


One laundry tray, service sink. 












processes or PHcHages meat or 


or curbed cleaning facility with 












ofh?r food itenw: 




floor drain on premises for 


















cleaning of mops/mop water 












1 in each food processing, 


disposal. 












packaging, and utensil 


washing 














area located to permit 




Retail Food Markets that also 












convenient use by all food and 


processes or packages meat or 












utensil handlers. 




other food items; 


















3 compartment sink'* 


Restaurants/Food 


30 sq ft 


Persons 


Male 


Female 


Persons 


Male 


Female 


Drinking Fountains^* 


Service 

_ .... i: n -^-5 


per person 


(total) 






(total) 






Persons Fixtures 



1-50 
51-100 
101-200 
201-300 
For each 
additional 
200 persons 
over 300. 
add 



1-150 
151-200 
201-400 
For each 
additional 
200 persons 
over 400, 
add 



Kitchen: 



I -100 

101-250 

251-500 

Kitchen: 



1 in each food preparation and 
utensil washing area located to 
permit convenient use by all 
food and utensil handlers 



3 compartment sink 
(dishwashing machine, if 
provided, must be a commercial 
type) '8 

Other Fixtures: 

One laundry tray, service sink, or 
curbed cleaning facility with 
floor drain on premises for 
cleaning of mops/mop water 
dis|}osal. 



• 



(continued) 



Louisiana State Plumbing Code, 2000 edition® 



25 



Table 407 
linimum Plumbing Fixtures^ 



Building or 
Occupancy^ 



OccupanS 
Content^ 



Water Closets^ 



Lavatories^ 



Bathtubs, Showers 

and Miscellaneous Fixtures 



Clubs, Lounges, 


30 sq ft 


Persons 


Male 


Female 


Persons 


Male 


Female 


Drinking Fountains--* 


and Restaurants/ 


per person 


(total) 






(total) 






Persons Fixtures 




















Establishments 




1-25 


1 


1 


1-150 


1 


1 


1-100 1 


with Club, or 




26-50 


2 


2 


151-200 


2 


2 


101-250 2 


Lounge '^•--' 




51-100 
101-300 
For each 
additional 
200 

persons 
over 300, 
add 


3 
4 

1 


3 
4 

2 


201-400 

For each 

additional 

200 

persons 

over 400. 

add 

Bar; 


3 

1 


3 
1 


251-500 3 

Bar: 

3 comparlment sink 
(dishwashing machine, if 
provided, must be a commercial 
lype)'8 

• Other Fixtvira; 



1 in each drinlc preparation and 
utensil washing area located to 
permit convenient use by all 
drink and utensil handlers. 



One laundry tray, service sink, or 
curbed cleaning facility with 
floor drain on premises for 
cleaning of mops/mop water 
disposal. 



Do it yourself 


50sqft 


Persons 


Male 


Female 


Persons 


Male 


Female 


One drinking fountain and one 


Liiundries^ 


per person 


(total) 
1-50 


1 


1 


(total) 
1-100 


1 


1 


service sink. 






51-100 


1 


2 


101-200 


2 


2 




Beauty Shops, 


50 sq-ft 


Persons 


Male 


Female 


Persons 


Male 


Female 


One drinking fountain and one 


Barber Shops, 


per person 


(total) 






(total) 






service sink or other utility 


Nail Salons, and 
















sink. 


Tanning Facilities^ 




































1-35 


1 


1 


1-75 


1 


1 








.^6-75 


1 


2 










Heavy 


Occupant 


Persons 


Male 


Female 


Persons 


Male"* 


Female''* 


One drinking fountain for 


manufacturing,"' 


content per 


(total) 






(total) 






each 75 persons. 


warehouses" 


shift. 














One shower for each 1 5 


foundries, and 


substantiated 


1-10 


1 


1 


1-15 


1 


1 


persons exposed to 


similar 


by owner. 


11-25 


2 


1 


16-35 


2 


1 


excessive heat or to skin 


establishments'^-'^ 


Also see 


26-50 


3 


1 


36-60 


3 


1 


contamination with 




407.3.2 


51-75 


4 


1 


61-90 


4 


1 


poisonous, infectious, or 






76-100 


5 


1 


91-125 


5 


1 


irritating material. 






For each 






For each 












additional 






additional 












60 persons 






100 persons 












over 100. 






over 125, 












add 


1 


0.l7 


add 


1 


0.l7 




Light Mfg. '0 


Occupant 


Persons 


Male 


Female 


Persons 


Male'"* 


Female''* 


One drinking fountain for 


Light 


content per 


(total) 






(total) 






each 75 persons. 


Warehousing ' ' 
and workshops. 


shift, 
substantiated 














One shower for each 1 5 
persons exposed to 


1-25 


1 


1 


1-35 


1 


1 


etc. >2-13 


by owner. 


26-75 


2 


2 


36-100 


2 


2 


excessive heat or to skin 




Also see 


76-l(X) 


3 


3 


101-200 


3 


3 


contamination with 




407.3.2 


For each 
additional 
60 persons 
over 100, 
add 


1 


1 


For each 
additional 
100 persons 
over 200, 
add 


1 


1 


poisonous, infectious, or 
irritating material. 



(continued) 



• 



26 



Louisiana State Plumbing Code, 2000 edition© 



Table 407 
Minimum Plumbing Fixtures^ 



Building or 


Occupant 












Bathtubs, Showers 


Occupancy2 


Content^ 


Water Closets^ 




Lavatories^ 




and Miscellaneous Fixtures 


[)orinilories'5 


50sqft 


Persons 


Male '6 


Female"' 


Persons Male 


Female 


One drinking fountain for each 




per person 


(total) 






(total) 




75 persons. 




(calculated 
on sleeping 












Washing machine may 

be used in lieu of laundry trays. ''' 




1-10 


1 


1 


1-12 1 


1 




area only) 


11-30 


1 


2 


13-30 2 


2 


One shower or bathtub for each 






31-100 


3 


4 


For each 




8 persons. Over 150 persons add 






For each 






additional 




1 shower or bathtub for each 20 






additional 






30 persons 




persons. 






50 persons 






over 30. 










over 100. 






add 1 


1 








add 


1 


1 








Places of Public 


70 sq ft per 


Persons 


Male 


Female 


Persons Male 


Female 


Drinking Fountains 


Assembly 


person 


(total) 






(total) 




Persons Fixtures 


without seats and 


(calculated 
from 














Waiting Rooms 


1-50 


2 


2 


1-200 1 


1 


1-100 1 


at Transportation 


assembly 


51-100 


3 


3 


201-400 2 


2 


101-350 2 


Terminals and 


area.) Other 


101-200 


4 


4 


401-750 3 


3 


Over 350 add one fixture 


Stations 


areas 

considered 
separately. 
(See Office 
or Public 


201-400 
For each 
additional 
250 persons 
over 400. 


5 


5 


Over 750 persons, 
lavatories shall be 
required at a number 
equal to not less than 
1 /3 of total of required 




for each 400. 




Buildings.) 


add 


1 


2 


water closets 
and urinals. 






Theaters, 


Use the 


Persons 


Male 


Female 


Persons Male 


Female 


Drinking Fountains 


Auditoriums, 


number of 


(total) 






(total) 




Persons Fixtures 


Stadiums 


seats as 
basis 














Arenas^'.and 


1-50 


2 


2 


1-200 1 


1 


1-100 1 


Gymnasiums^^ 




51-100 


3 


3 


201-400 2 


2 


101-350 2 






101-200 


4 


4 


401-750 3 


3 


Over 350 add one fixture 






201-400 


5 


5 


Over 750 persons. 




for each 400. 






For each 






lavatories shall be 










additional 






required at a number 










250 persons 






equal to not less than 










over 400, 






1/3 of total of required 










add 


1 


2 


water closets 
and urinals. 






Churches, 


Use the 


Persons 


Male 


Female 


Persons Male 


Female 


Drinking Fountains 


Mosques, 


number of 


(total) 






(total) 




Persons Fixtures 


Synagogues, 
Temples, and 


seats as 














basis 


1-70 


1 


1 


1-200 1 


1 


1-100 1 


other Places of 




71-150 


2 


2 


201-400 2 


2 


101-350 2 


Worship26 




151-500 
For each 
additional 
500 persons 
over 500. 
add 


3 

1 


3 

1 


401-750 3 
Over 750 persons, 
lavatories shall be 
required at a number 
equal to not less than 
1/3 of total of required 
water closets 
arid urinals. 


3 


Over 350 add one fixture 
for each 400. 


Retail Fuel 


Use the 


Fueling Points 


Male 


Female 


Fueling PointsMale 


Female 


Drinking Fountains 


Stations (Along 


number of 












Fueling Points Fixtures 


an Interstate 


Fueling 
Points'^ as 




- 










highway when 


1-8 


1 


1 


1-12 1 


I 


1-12 1 


the station 


the basis 


9-12 


2 


2 


1 3 or more 1 


2 


1 3 or more 2 


property is 




1 3 or more 


2 


3 








located within 1/2 
















mile of the 
















nearesj toe^s of 
















the exit/entrance 
















ramp)2-' 
















Retail Fuel 


Use the 


Fueling Points 


Male 


Female 


Fueling PointsMale 


Female 


Drinking Fountains 


Stations not 


number of 












Fueling Points Fixtures 


meeting above 
criteria--^ 


Fueling 
Points'^^ as 














1 or more 


1 


1 


1 or more 1 


1 


1 or more 1 




the initial 
















basis 














Other 
















Miscellaneous 
















Buildings or 
















Occupancies-* 
















1 ft- = 0.0029 m- 

















Louisiana State Plumbing Code, 2000 ecJition© 



27 



Noles: 

1. The figures shown are based upon one fixture lieing the minimum required for the number of persons indicated or any fraction thereof. 

2. The occupant content and the number of required facilities for occupancies other than listed shall be determined by the plumbing oftlciul. Plumbing facilities in the occupancies or 
tenancies of similar use may be determined by the plumbing official from this table. 

3. Urinals can be substituted for up to Vi of the required water closets. 

4. Twenty-four linear inches (610 mm) of wash sink or 18 inches (457 mm) of a circular basin, when provided with water outlets for such space, shall be considered equivalent to 1 
lavatory. 

5. When central washing facilities are provided in lieu of washing machine connections in each living unit, central facilities shall be located for the building served at the ratio of not 
less than one washing machine for each 12 living units, but in no case less than two machines for each building of 15 living units or less. See 409.4.5. 

6. With the exception of retail stores associated with retail fuel stations and^or restaurant/food service establishments associated with retail fuel stations and retail stores that require 2 
or more different food permits (see note #20 below), a single facility consisting of one waier closet and one lavatory may be used by both males and females in the following 
occupancies subject to the building area limitations: 



Occupancy 


Total Building Area (sq ft) 


Office 


1200 


Retail Store (within covered mall) 


3500 


Laundries (Self- Service) 


1400 


Beauty Shops, Barber Shops, Tanning Facilities, 
and Nail Salons 


900 



Occupancy 


Usable Building Area (sq ft) 


Restaurant/Food Service Establishment 
(excluding retail fuel stations) 


500 


Retail Store (excluding retail fuel stations) 


1500 



7. After totaling fixtures, round up any fraction to the next highest whole number of fixtures. 

8. Common toilet facilities (separate for males and females) for each floor are acceptable in lieu of separate facilities required by this section only when the applicable building 
occupant content has common access from \yithin the building. When tenancies, rental units, etc., are to be provided with separate facilities of a partial nature, such facilities are not 
deductible from the total conrimon facilities required. 

9. (a) Applicable to small stand-up restaurants and similar occupancies. 

(b) Not applicable to do-it-yourself laundries, beauty shops and similar occupancies where persons must remain to receive personal services. 

10. (a) Light manufacturing is applicable to those manufacturers manufacturing finished products which require no special equipment to handle single finished products but may 

require special equipment to handle the products when packaged in containers containing multiple products. 
' Cb) Heavy inunufacturing is applicable to those manufacturing processes requiring overhead cranes or similar equipment for the movement of raw materials and/or the finished products. 

11. (a) Light Storage: Light storage is the storage of items which can be handled without the aid of special handling equipment such as cranes, forklifts or similar equipment., 
(b) Heavy Storage: Heavy storage is the storage of items which require special equipment for handling such as cranes, forklifts or similar equipment. 

12. For other than industrial areas of the occupancy, see other applicable type occupancies (applicable to facilities provided due to inaccessibility of those in main or initial occupancy). 

13. As required by the Minimum Requirements for Sanitation in Places of Employment( ANSI Z4.1). 

14. Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide I lavatory for each 15 persons. 

15. Laundry trays, 1 for each 50 persons. Service sinks, 1 for each 100 persons. 

16. For exclusively male or female dorms, the fixtures shall be double the amount required for the particular gender in a co-ed dorm. 

17. If alcoholic beverages are to be served, facilities shall be as required for clubs Or lounges. 

H 18. At the discretion of the Plumbing Official, one properly sized grease trap for wastewater from the kitchen utensil washing sinlc(s), dishwashing machine(s), etc.. is also required. 

I 19. Fueling point means the number of fueling hoses which may be activated simultaneously while refueling automobiles or other motor vehicles. 

5 20. Retail stores, regardless of the size of the building area, which require two or more different food permits (e.g.. Grocery Permit, Restaurant Permit, etc.) shall be required to provide 

£ no less than a minimum of two facilities consisting of one water closet and one lavatory each. 

S 21. a.) Trough urinals may only be used for stadiums, arenas, and jails, prisons, or other institutions of detention or incarceration. Trough urinals, when used, shall conform to the 

i following requirements: They shall not be less than 6 inches deep and shall be furnished with one piece backs and have strainers with outlets at least 1 Uj inches in diameter. 

i The washdown pipe shall be perforated so as to flush with an even curtain of water against the back of the urinal. This pipe shall be securely clamped as high as practicable to 

S the back of the urinal. Trough urinals, where so equipped, shall have tanks with a flushing capacity of not less than l^/j gallons of water for each 2 feet of urinal length. 

= b.) Trough urinals shall be figured on the basis of one ( 1 ) urinal for each 18 inches of length, provided that: 24-inch urinal equals 1 urinal: 36-inch urinal equals 2 urinals; 48-inch 

B urinal equals 2 urinals; 60-inch urinal equals 3 urinals; and a 72-inch urinal equals 4 urinals. 

S c.) Privacy screens shall not be required for trough urinals. 

s 22. Applies to educational occupancies above the 12th grade. 

E 23. If building is a multi-purpose facility (i.e., a retail fuel station and a retail store, or a retail fuel station and a retail store and a restaurant, or a retail store and retail fuel station, etc.), 

S the occupancy which requires the largest number of fixtures shall apply. 

§ 24. Drinking fountain requirement may be waived if drinking water is dispensed in an approved, sanitary manner in accord with the requirements of Chapter XXIll of the Louisiana 

5 State Sanitary Code. 

S 25. "Toe" is defined as the point where the Interstate highway's exit/entrance ramp meets the intersecting highway. 

i 26. For pew or bench type seating, each 18 inches of pew or bench shall equate to one (1) person. 

S 27. Central facilities shall be installed such that the path of travel to such facilities shall not exceed a distance of 500 feet and such facilities shall be located not more than one story 

1 above or below the space required to be provided with toilet facilities. The maximum travel distance to the central toilet facilities shall be measured from the main entrance of any 

= store or tenant space. 

B 28. Refer to the following chapters of the Louisiana State Sanitary Code for specific information relative to the number of plumbing fixtures required for these other miscellaneous 

S buildings or occupancies: 



Building or Occupancy 


Louisiana State Sanitary Code 


Wholesale Seafood Plants (Marine and 
Freshwater) 


Chapter IX 


Campsites 


Chapter XVI 


Jails, Prisons and Other Institutions of Detention 
or Incarceration^' 


Chapter XVIII 


Hospitals, Ambulatory Surgical Centers. Renal 
Dialysis Centers 


Chapter XIX 


Nursing Homes 


Chapter XX 


Temporary Food Service (Festivals or Fairs) 


Chapter XXIIIA 


Swimming Pools 


Chapter XXIV 


Mass Gathering Areas 


Chapter XXV 





• 



28 



Louisiana State Plumbing Code, 2000 edition® 



407.3 Adjustments to Minimuml Facilities 

407.3.1 The plumbing official may make adjustments in 
the distribution of facilities jbetWeen male and female 
when furnished satisfactory data to substantiate a claim 
that the numbers of male and female fixtures in Table 407 
would not provide a satisfactory ratio of facilities based on 
the male-female ratio for the ultirriate users. In any case, 
where deviation is permittedj in accordance with this 
section, the plumbing officiial may require additional 
facilities if the data submitted! proves to be in error or if 
changes are made that affect sijchdata, whether it be by 
the original or later owner or occupants of the building or 
tenancy. 

407.3.2 The plumbing official may make adjustments in 
the occupant content established by Table 407 when, in a 
particular case, satisfactory data, accompanied by plans, is 
furnished which substantiates a claim that the occupant 
content of a particular building or tenancy will, at all 
times, be jess than provided for in the above table. 
Approval of such data and acco'mpanying claims shall not 
prevent the plumbing official frorn requiring, additional 
facilities based on the above table, should changes be 
made affecting the data or plan upon which the original 
approval was based whether such changes be made by the 
original or ultimate owner |or building occupant or 
occupants. The remainder of thb facilities' requirements of 
407 are not affected by this paragraph. 

407.4 Facilities' Separation 

The occupant content established by this code shall not be 
construed to have any force or jeffect upon the occupant 
content requirements of the Standard Building Code and is 
established only to calculate the number of plumbing 
facilities required for a building or for a tenancy within a 
building when such tenancy is separated from the remainder 
of the building by walls or partitions or when central facilities 
would not provide for the satisfactory needs of a tenant's 
patrons who must remain in a given area to receive the 
service rendered. 

408 FIXTURE dUTLETS 

408.1 Lavatory Waste Outlets 

Lavatories shall have waste outlets not less than 1 1/4-inch 
diameter. Waste outlets may have open strainers or may be 
provided with stoppers. 

408.2 Sink Waste Outlets , 

Sinks shall be provided with waste outlets not less than 1 1/2- 
inch diameter. Waste outlets may have open strainers or may 
be provided with stoppers. 

408.3 Strainers and Fixture Outlets 

All plumbing fixtures, other than water closets and syphon- 
action washdown or blowout urinals, shall be provided with 
strainers having waterway area corriplying with Table 405. 



Louisiana State Plumbing Code, 2000 edition® 



408.4 Overflows 

408.4.1 Design. When any fixture is provided with an 
overflow, the waste shall be so arranged that the standing 
water in the fixture cannot rise in the overflow when the 
stopper is closed or remain in the overflow when the 
fixture is empty. 

408.4.2 Connection. The overflow pipe from a fixture 
shall be connected on the house or inlet side of the fixture 
trap, except that overflows of flush tanks may discharge 
into the water closets or urinals served by them, but it 
shall be unlawful to connect such overflows with any 
other part of the drainage system. 

409 FIXTURE TYPES 

409.1.1 Commercial Dishwashing Machines 

409.1.1.1 Protection. Commercial dishwashing 
machines shall meet requirements of 606. 

409.1.1.2 Waste Connection. Each unit may be 
separately trapped or discharge indirectly into a 
properly trapped and vented fixture- A commercial 
dishwashing machine shall not be directly connected to 
a drainage system. When a commercial dishwashing 
machine is located within five feet of a trapped floor 
drain, the dishwasher waste outlet may be connected 
directly on the inlet side of a properly vented floor 
drain trap. 

409.1.1.3 Sanitization. Commercial dishwashing 
machines shall be installed and operated in accord with 
the manufacturer's recommendations and with the 
mechanical cleaning and sanitizing requirements 
contained within Chapter XXIII (Eating and Drinking 
Establishments) of the Louisiana State Sanitary Code. 

409.1.1.4 Flow Pressure, When spray-type 
dishwashing machines are used in commercial 
installations, the pressure measured in the final rinse 
water line shall be at least 15 psi (103 kPa) and not 
more than 25 psi (172 kPa) when the final rinse spray is 
operating. A suitable pressure gauge and gage cock 
shall be provided in a readily accessible location 
immediately upstream from the final rinse sprays to 
permit checking the flow pressure of the final rinse 
water. If necessary, a permanently installed pressure 
regulator shall be provided on the final rinse water line 
in order to maintain the proper water pressure in the 
line when the final rinse spray is operating. 

409.1.2 Domestic Dishwashing Machines 

409.1.2.1 Protection. Domestic dishwashing machines 
shall meet requirements of 606. 

409.1.2.2 Waste Connection. Each unit may be 
separately trapped or discharge indirectly into a 
properly trapped and vented fixture. A domestic 
dishwashing machine shall not be directly connected to, 
a drainage system. It may be connected through a wye 

29 



connection into the tai! piece of a sink or into the body 
of a disposal unit with the flexible dishwasher hose 
looped up to within 2 inches of the bottom of the 
counter top. 

409.2 Drinking Fountains 

409.2.1 Design and Construction. Drinking fountains 
shall conform to ASME A 112.19.2M if of vitreous china, 
ANSI/ARI 1010 if of the mechanically refrigerated type, 
or ASME A 1 12.1.2 if of the bubbler type. 

409.2.2 Protection of Water Supply. Stream projectors 
shall be so assembled as to provide an orifice elevation as 
specified by ASME A 1 12.1.2. 

409.2.3 Prohibited Location. Drinking fountains shall not 
be installed in public toilet rooms. 

409.3 Garbage Can Washers 

Garbage can washers shall be separately trapped. The 
receptacle receiving the wash from garbage cans shall be 
provided with a removable basket or strainer to prevent 
discharge of large particles into the building drainage system. 
Any water supply connection shall be protected against 
backflow by an air gap or a backflow prevention device. 

409.4 Floor Drains 
409.4.1 Installation 

409.4.1.1 Floor drains shall be installed in all public 
toilet rooms, etc., (see definition of Public or Public 
Use in Chapter 2) except for hotel and motel guest 
rooms and patient rooms of hospitals and nursing 
homes. When floor drains are installed in the above 
mentioned rooms, the floor drains shall be not less than 
2 inches and the trap shall be equipped with an 
approved trap primer to maintain the water seal in the 
floor drain trap. When a trap primer is connected to a 
potable water supply pipe, an approved backflow 
preventer shall be separately installed on the trap 
primer's individual supply line. 

409.4.1.2 Floor drains shall connect into a trap so 
constructed that it can be readily cleaned and of a size 
to serve efficiently the purpose for which it is intended. 
The drain inlet shall be so located that it is, at all times, 
in full view. 

409.4.1.3 Floor drains subject to backflow shall not be 
directly connected to the drainage system or shall be 
provided with a backwater valve. 

409.4.1.4 Floor drain trap seals subject to evaporation 
shall be of the deep-seal type of not less than a 4-inch 
(102 mm) water seal or shall be fed from an approved 
plumbing fixture or by means of an approved automatic 
priming device designed and approved for that purpose. 

409.4.1.5 Floor drain traps and drains shall be not less 
than 2-inch diameter. 



409.4.2 Strainers. Floor drains shall be provided with 
removable strainers, the open area of which shall be not 
less than two-thirds of the cross-sectional area of the trap 
to which it connects. 

409.4.4 Prohibited Location * 

409.4.4.1 No floor drain or other plumbing fixture 
except electric water heaters shall be installed in a 
room containing air handling machinery when such 
room is used as a plenum. When rooms are used as a 
plenum, equipment drains shall be conveyed through an 
indirect waste receptor located outside such rooms or 
other approved point of disposal. When such equipment = 
rooms are not used as a plenum, floor drains may be | 
installed if an approved trap primer is installed. = 



.4.4.2 Floor drains directly connected to the 
plumbing system shall not be located in elevator pits. 

409.4.4.3 No floor drains shall be permitted in food = 
storage areas unless installed in accordance with | 
Section 804.1. | 

409.4.4.4 Floor drains are not permitted in walk-in = 
coolers or freezers unless they are provided with | 
indirect connections to the sanitary sewer located | 
outside the walk-in cooler or freezer. 5 

409.4.5 Required Location and Construction 

In public coin operated laundries and in the central 
washing facilities of apartment buildings or in rooms 
containing connections for laundry machines except in one 
and two family dwellings, the rooms containing the 
laundry machines shall be provided with adequate floor 
drains located to readily drain the entire floor area. Such 
drains shall have a minimum outlet cross section of not 
less than 2-inch diameter, and, except when such floor | 
drains are embedded in concrete floors, the floors shall be 
treated as required by 409.8.2 for floors under shower 
compartments. Required floor drains shall meet the design 
criteria for shower drains in 409.8.1. r 

409.5 Food Waste Grinder Units 

409.5.1 Separate Connections. Domestic food waste 
disposal units may be connected and trapped separately 
from any other fixture or compartment. Units may have 
either automatic or hand-operated water-supply control. 
See 606. 

409.5.2 Commercial Type Grinders. Food grinders 
used in commercial buildings shall have an automatic 
water-supply and shall be provided with not less than 2- 
inch (51mm) waste line. Each waste line shall be trapped 
and vented as provided in other sections of this code, (see | 
1004.11) I 



30 



Louisiana State Plumbing Code, 2000 edition® 



409.6 Laundry Trays 

409.6.1 Waste Outlets. Each compartment of a laundry 
tray shall be provided with a waste outlet not less than 1 
1/2 inches in diameter. 

409.6.2 Overflow. Laundry tray overflows shall conform 
to the requirements of 408.4. 

409.7 Multiple Washsinks 

409.7.1 Circular Type. Each 18 inches (457 mm) of wash 
sink circumference (circular type) shall be equivalent to 
one lavatory. 

409.7.2 Straight-Line Type. Multiple wash sinks of the 
straight-line type shall have hot and cold combination 
spouts not closer than 18 inches (457 mm) from adjacent 
similar spouts and each spout shall be considered the 
equivalent of one lavatory. 

409.8 Shower Compartments 

409.8.1 Shower. Shower compartments shall conform to 
Table 409.8 and shall have approved shower pan material 
or the equivalent thereof as determined by the plumbing 
official. The pan shall turn up on three sides at least 2 
inches (51 mm) above fmished curb level. The remaining 
side shall wrap over the curb. Shower drains shall be 
constructed with a clamping device so that the pan may be 
securely fastened to the shower drain thereby making a 
watertight joint. Shower drains shall have an approved 
weephole device system to insure constant drainage of 
water from the shower pan to the sanitary drainage 
system. There shall be a watertight joint between the 
shower drain and trap. Shower receptacle waste outlets 
shall be not less than 2 inches and shall have a removable 
strainer. 

EXCEPTION: Shower compartments with 
prefabricated receptors conforming to the standards 
listed in Table 409.8 or special use shower 
compartments for accessible use which comply with 
the ANSI A 1 17.1 accessibility standard. 

Table 409.8 
Prefabricated Shower Receptor Standards 



MATERIALS 


STANDARDS 


Plastic Shower Receptors and Shower Stalls 


ANSI Z1 24.2 


Shower Pans Nonmetallic 


ASTMD 4551, See 303.7 



'.8.2 Construction. Floors under shower 
compartments shall be laid on a smooth and structurally 
sound base and shall be lined and made watertight with 
sheet lead, copper or other acceptable materials. 

409.8.3 Public or Institutional Showers. Floor of public 
shower rooms shall be drained in such a manner that no 
waste water from any shower head will pass over floor 
areas occupied by other bathers. 



409.9 Special Fixtures 

409.9.1 Water Drain and Connections. Baptistries, 
ornamental and lily pools, aquaria, ornamental fountain 
basins and similar constructions when provided with water 
supplies shall be protected from back-siphonage as 
required in 606.1. 

409.9.2 Approval. Specialties requiring water and waste 
connections shall be submitted for approval of the 
plumbing official. 

409.9.3 Accessible Fixtures. Accessible fixtures shall 
comply with the requirements of ANSI A 117.1. 



409.10 Swimming Pools, Spas, and Hot Tubs 

409.10.1 Water circulation system components for 
swimming pools, spas or hot tubs shall meet the 
requirements of ANSI/NSF 50. The circulation system 
components are diatomite type filters, sand type filters, 
cartridge type filters, recessed automatic surface 
skimmers, centrifugal pumps of 7.5 horsepower (5.6 kW) 
or smaller, adjustable output rate chemical feeding 
equipment, multiport valves and flow-through chemical 
feeding equipment. [For other plumbing requirements, 
also see Chapter XXIV (Swimming Pools) - Louisiana 
State Sanitary Code] 

409.10.2 Suction Fittings. Suction fittings shall conform 
to ASME A 112. 19. 8M. Public, Residential Spas shall 
comply with the standards listed in Table 409.10. 



Table 409.10 
Public and Residential Spas Standards 



MATERIALS 


STANDARDS 


Public Spas 


ANSI/NSPI 2 


Residential Spas, Permanently Installed 


ANSI/NSPI 3 


Residential Spas, Portable 


ANSI/NSPI 6 



409.11 Urinals 

409.11.1 Automatic Flushing Tank. Tanks flushing more 
than one urinal shall be automatic in operation and of 
sufficient capacity to provide the necessary volume to 
flush and properly cleanse all urinals simultaneously. 

409.11.2 Urinals Equipped with Automatic Flush 
Valves. Flushometers shall be as prescribed in 409.13.5 
and no valve shall be used to flush more than one urinal. 

409.12 Washing Machines for Residences 

409.12.1 Protection. Domestic washing machines shall 
meet the requirements of 606. 1 . 

409.12.2 Separate Trap. Each unit shall be separately 
trapped or discharge indirectly into a properly trapped and 
vented fi.xture. (see 1001.9) 



Louisiana State Plumbing Code, 2000 edition® 



31 



409.12.3 Cross Fittings. Automatic washing machines 
shall not be connected to a 2-inch or smaller cross type 
fitting. 

.13 Water Closets 

409.13.1 Public Use. Water closet bowls for public use 
shall be of the elongated type. 



.13.2 Flushing Device. Water closet gravity, tanks, 
flushometer tanks and flushometer valves shall have a 
flushing capacity sufficient to properly flush the water 
closet bowls to which they are connected. 



409.14.4 Hydromassage Bathtubs. Hydromassage 
bathtubs shall comply with UL 1795. 

409.14.5 Whirlpool Bathtub Appliances. Whirlpool 
bathtub appliances shall comply with ASME A 
li2.19.7M. 

409.14.6 Suction Fittings. Suction fittings for use in 
whirlpool bathtubs shall comply with ASME A 
112.19.8M. 

410 APPENDIX REFERENCES 



• 



^.13.3 Float Valves. Float valves in water closet tanks 
shall close tight and provide water to properly refill the 
trap seal in the bowl. 



3.4 Close-Coupled Tanks. The flush valve seat in 
close-coupled water closet combinations shall be 1 
inch (25.4 mm) or more above the rim of the bowl, 
so that the flush valve will close even if the closet 
trapway is clogged. Any closets with flush valve seats 
below the rim of the bowl shall be so constructed that in 
case of trap stoppage, water will not flow continuously 
over the rim of the bowl. 



Additional provisions for plumbing fixtures are contained in 

Appendix G - Medical Facilities Plumbing Systems. These | 

provisions are applicable only when they are referenced in J 

the body of the code sections or when included in the i 

adopting ordinance. i 



.13.S Automatic Flush Valve. Flushometers shall be 
so installed that they will be readily accessible for 
repairing. When the valve is operated, it shall complete the 
cycle of operation automatically, opening fully and 
closing positively under the service pressure. At each 
operation, the valve shall deliver water in sufficient 
volume and at a rate that will thoroughly flush the fixture 
and refill the fixture trap. Means shall be provided for 
regulating flush valve flow. Not more than one fixture 
shall be served by a single flush valve. 



3.6 Seats. Water closets shall be equipped with seats 
of smooth nonabsorbent material. All seats of water 
closets provided for public use shall be of the open-front 
type. Integral water closet seats shall be of the same 
material as the fixture. The seat contour shall be the same 
contour as the water closet. 



409.14 Whirlpool Bathtubs 

409.14.1 Access. An access panel of sufficient size shall 
be installed to provide access to the pump for repair and 
replacement. 

409.14.2 Pump. When not factory assembled to the tub 
assembly, the circulation pump shall be accessibly located 
above the crown weir of the trap. The pump drain line 
shall be properly graded to assure minimum water 
retention in the volute after fixture use. 



.14.3 Operation. Leak testing and pump operation 
shall be performed in accordance with manufacturer's 
recommendations. 



32 



Louisiana State Plumbing Code. 2000 edition© 



CHAPTERS 

WATER HEATERS 



• 



501 GENERAL 

50L1 Scope 

The provisions of this chapter shall govern the materials, 

design, and installation of water heaters. 

5013 Working Pressure Identification 

All storage tanks and water heaters shall be clearly and 
indelibly marked showing the allowable safe working 
pressure. 

50L4 Water Heater As Space Heater 
A water heater may be used as a part of a space heating 
system if the outlet water temperature of the water heater 
does not exceed 160°F (7rC) and the potability of the water 
is maintained throughout the system. 

501.5 Sediment Drains 

A suitable water valve or cock, through which sediment may 
be drawn off or the heater or tank emptied, shall be installed 
at the bottom of the heater or tank. 

501.6 Water Heating Equipment 

A shutoff valve shall be provided in the cold water branch 
line to each water storage tank or each water heater, on the 
same floor within 3 feet of the heater. Full port ball valve 
shut-offs on cold water branch lines to 2 inches or full port 
ball or resilient wedge-type shut-off valves for 2 1/2 inch 
lines and larger shall be used. 

501.7 Location 

501.7.1 Water heaters and storage tanks shall be so 
located and connected that they will be accessible for 
observation, maintenance, servicing and replacement. 

501.7.2 Gas water heaters in residential garages shall be 
installed so that all burners and burner ignition devices are 
located not less than 18 inches above the floor. 

501.7.3 Gas water heaters shall be located, or reasonably 
protected, so that they are not subject to physical damage 
by a moving vehicle. 

501.7.4 Every attic or furred space in which water heaters 
and/or storage tanks are installed shall be readily 
accessible by an opening and passageway as large as the 
largest piece of equipment and in no case less than 22 x 36 
inches (559 x 914 mm) continuous from the opening to the 
equipment and its controls. The opening to the 
passageway should be located not more than 20 ft (6096 
mm) from the equipment measured along the center line of 
such passageway. Every passageway shall be unobstructed 
and shall have solid continuous flooring not less than 24 
inches (610 mm) wide from the entrance opening to the 
equipment. On the control side and on other sides where 



access is necessary for servicing of equipment, a level 
working platform extending a minimum 30 inches (762 
mm) from the edge of the equipment with a 36 inch (914 
mm) high clear working space shall be provided. " 

501.8 Marking 

501.8.1 Water Heaters. All water heaters shall bear the 
following, or equal wording on a visible decal or label by 
the manufacturer: 

There shall be installed at time of heater installation a 
combination temperature and pressure relief valve, 
selected and located in conformance with the 
requirements of ANSI Z2 1.22. 

501.8.2 Pressure Marking of Storage Tanks. Any 

storage tank Installed for domestic hot water shall have 
clearly and indelibly stamped in the metal, or so marked 
upon a plate welded thereto or otherwise permanently 
attached, the maximum allowable working pressure. Such 
markings shall be in an accessible position outside of the 
tank so as to make inspection or reinspection readily 
possible. All unlisted storage tariks for domestic hot water 
shall meet the applicable ASME standards. 

502 DEFINITIONS 

The following definition has been moved to Chapter 2: 
WATER HEATER. 

503 STANDARDS 

503.1 Electric Water Heaters 

Electric residential water heaters shall comply with PS A-A- 
2956 and UL 174. 

503.2 Gas Water Heaters 

Automatic storage type gas water heaters with inputs of 
75,000 Btuh (22 kW), or, less shall comply with ANSI 
Z2 1.1 0.1. Circulating tank, instantaneous and large automatic 
storage type gas water heaters shall comply with ANSI 
Z21.10.3. 

503.3 Testing and Listing 

Water heaters shall be tested and listed by an approved 
agency. 

504 MINIMUM CAPACITIES FOR RESIDENTIAL 
WATER HEATERS 

Water healers installed in residential occupancies may be 
sized in accordance with Table 504. 



Louisiana State Plumbing Code, 2000 edition© 



33 



TabSe 504 

fimum Capasltles For Water Heaters'*' 2, 3 



Number of 
Bathrooms 


1 to 1.5 


2 to 2.5 


3 to 3.5 


Number of 
Bedrooms 


1 


2 


3 


2 


3 4 


5 


3 


4 5 


6 


IsiHr 
Rating Gal. , 


42 


54 


54 


54 


67 67 


80 


67 


80 80 


80 


Nom. Tank 
Sire. Gal. 
Gas Water 
Heaters 


20 


30 


30 


30 


40 40 


50 


40 


50 50 


50 


Elect. Water 
Heaters 


30 


50 


50 


50 


66 66 


80 


66 


80 80 


80 


Oil Water 
Heaters 


30 


30 


30 


30 


30 30 


30 


30 


30 30 


30 



I gal = 3.7854 L 

Note: 

1. The main criteria for a properly sized water heater is a sufficient first hour rating to meet peak hot water demand. The majority of tank sizes shown in the table will have a first hour 
rating equal to or greater than the first hour rating indicated. A water heater with a smaller tank size tJian shown in the table but with a sufficient first hour rating shall be |)ermitted. 

2. The first hour rating is found on the "Energy Guide" label. 

3. Non-storuge and solar water heaters shall be sized with sufficient capacity to meet the appropriate first hour rating shown in the table. 



34 



Louisiana State Plumbing Code, 2000 edition® 



505 PROHIBITED INSTALLATIONS 

505.1 Water heaters (using solid, liquid or gas fuel) with the 
exception of those having direct vent systems, shall not be 
installed in bathrooms and bedrooms or in a closet with 
access only through a bedroom or bathroom. However, water 
heaters of the automatic storage type may be installed as 
replacement in a bathroom, when specifically authorized by 
the plumbing official, provided they are properly vented and 
supplied with adequate combustion air. 

Exception: When a closet, having a weather-stripped 
solid door with an approved door closing device, has been 
designed exclusively for the water heater and where all air 
for combustion and ventilation is supplied from outdoors. 

505.2 Water heaters (using solid, liquid or gas fuel) shall not 
be installed in a room containing air handling machinery 
when such room is used as a plenum. 

506 CONNECTIONS 

506.1 The cold water branch line from the main water supply 
line to each hot water storage tank or water heater shall be 
provided with a valve accessible on the same floor, located 
near the equipment and only serving the hot water storage 
tank or water heater. The valving shall not interfere or cause 
a disruption of the cold water supply to the remainder of the 
cold water system. 

506.2 The method of connecting a circulating water heater to 
the tank shall assure proper circulation of water through the 
heater, and permit a safe and useful temperature of water to 
be drawn from the tank. The pipe or tubes required for the 
installation of appliances which will draw from the water 
heater or storage tank shall be subject to the applicable 
provisions of this code for material and installation. 

507 SAFETY DEVICES 

507.1 Anti-Siphon Devices 

507.1 J Means acceptable to the plumbing official shall be 
provided to prevent siphoning of any water heater or tank 
to which any water heater or tank is connected. A cold 
water "dip" tube with a hole at the top or a vacuum relief 
valve installed in the cold water supply line above the top 
of the heater or tank may be accepted for this purpose. 

507.1.2 Bottom fed heaters or bottom fed tanks connected 
to water heaters shall have a vacuum relief valve installed. 
The vacuum relief valve shall bci in compliance with the 
appropriate requirements of ANSI Z2 1.22. 

507.2 Water Temperature Control in Piping from 

Tankless Heaters. 

The temperature of water from tankless heaters shall be 
tempered to 140°F (60°C) when intended for domestic uses. 
This provision shall not supercede the requirement for 
protective valves in the shower per 613.1. 

Louisiana State Plumbing Code, 2000 edition© 



507.3 Relief Valve 

All storage water heaters operating above atmospheric 
pressure shall be provided with an approved, self-closing 
(levered) pressure relief valve and temperature relief valve or 
combination thereof, except for nonstorage instantaneous 
heaters. Such valves shall be installed in the shell of the water 
heater tank or may be installed in the hot water outlet, 
provided the thermo-bulb extends into the shell of the tank. 
Temperature relief valves shall be so located in the tank as to 
be actuated by the water in the top one-eighth of the tank 
served. For installations with separate storage tanks, said 
valves shall be installed on the tank and there shall not be any 
type of valve installed between the water heater and the 
storage tank. There shall not be a check valve or shutoff 
valve between a relief valve and the heater or tank which it 
serves. The relief valve shall not be used as a means of 
controlling thermal expansion, (see 613.2) 

507.4 Energy Cutoff Device 

All automatically controlled water heaters shall be equipped 
with an energy cutoff device which will cut off the supply of 
heat energy to the water tank before the temperature of the 
water in the tank exceeds 210°F (99°C). This cutoff device is 
in addition to the temperature and pressure relief valves. 

507.5 Relief Valve Approval 

Temperature and pressure relief valves, or combinations 
thereof, or energy shutoff devices shall bear the label of the 
AGA or ASME, with a thermosetting of not more than 210°F 
(99°C) and pressure setting not to exceed the tank or heater 
manufacturer's rated working pressure. The relieving 
capacity of these two devices shall each equal or exceed the 
heat input to the water heater or storage tank. 

507.6 Relief Outlet Waste 

The outlet of a pressure, temperature, or other relief valve 
shall not be directly connected to the drainage system. 

507.7 Heater Over 200,000 Btuh Input 

The relief valve shall have a minimum AGA temperature 
steam rating of 200,0(X) Btu (211,000 kJ), shall comply with 
all construction, testing and installation requirements of 
ANSI Z2 1.22, and shall have minimum 1 inch inlet and outlet 
pipe size connections. In addition, the temperature relieving 
element of the valve shall have a water discharge capacity 
based on 1250 Btu (1319 kJ) for each gallon per hour of 
water discharged at 30 psi (207 kPa) working pressure and a 
maximum temperature of 210°F (99°C). This rating must be 
certified by the valve manufacturer. Also, the pressure 
relieving element of the valve shall be ASME pressure steam 
rated. Both the temperature water rating and the ASME 
pressure steam rating of the combination temperature and 
pressure relief valve shall be equal to or in excess of the input 
to the hot water storage tank or storage water heater. 

507.8 Safety Pans and Relief Valve Waste 

507i.8.1 When water heaters or hot water storage tanks are 
installed in remote locations such as suspended ceiling 
spaces or in attics, the tank or heater shall rest in a 
galvanized steel or other metal pan of equal ct)rrosive 

35 



resistance having a thickness at least equal to 0.0276-inch 
(0.7 mm) galvanized sheet steel. 

Exception: Electric water heaters may rest in a high 
impact plastic pan of at least 1/16 inch (1.6 mm) 
thickness. 

507.8.2 Safety pans shall be no less than l'/2 inches 
(38mm) deep and shall be of sufficient size and shape to 
receive all drippings or condensate from the tank or heater. 
The pan shall be drained by a pipe no less than 1 inch 
(25.4 mm) diameter. 

507.8.3 The pan drain shall extend full-size and terminate 
over a suitably located indirect waste receptor or floor 
drain or extend to the exterior of the building and 
terminate no less than 6 inches (152 mm) or more than 24 
inches (610 mm) above grade. 

507.8.4 The discharge from the relief valve shall be piped 
full-size separately to the outside of the building or to an 
indirect waste receptor so that any discharge can cause no 
personal injury or property damage and can be readily 
observed by the building occupants. Relief valve 
discharge piping shall contain no valves or traps and shall 
be so graded and connected as to drip to the discharge end 
of the piping by gravity. When the relief valve discharge is 
piped to the outside of the building, it shall terminate no 
less than 6 inches (152 mm) and no more than 24 inches 
(610 mm) above finish grade. 

507.8.5 Relief valve discharge piping shall be of those 
materials listed in 611 or Table 507, or shall be tested and 
rated for such use. 



Table 507 
ReSief Valve Materials 



MaterialCs) 



Standards 



Water Heater Relief 
Valve Drain Tubes 



ASMEA 112.4.1 



36 



Louisiana State Plumbing Code, 2000 edition® 



CHAPTERS 

WAHER SUPPLY AND DISTRIBUTION 



601 GENERAL 

601.1 Scope 

The provisions of this chapter shall govern the materials, 
design, construction, and installation of water supply and 
distribution systems. 



601.8 Disinfection of Potable Water System 

The plumbing official may require that a potable water 
system or any part thereof installed or repaired be disinfected 
in accordance with one of the following methods before it is 
placed in operation: 

1. The system, or part thereof, shall be filled with a 
solution containing 50 pprn! of :|available chlorine and 
allowed to stand 6 hours before flushing and returning 
to service. 

2. The system, or part thereof, shall be filled with a 
solution containing 100 ppm of available chlorine and 
allowed to stand 2 hours before flushing and returning 
to service. 

3. In the case of a potable water storage tank where it is 
not possible to as provided in (1.) or (2.), the entire 
interior of the tank shall be swabbed with a solution 
containing 200 ppm of available chlorine and the 
solution allowed to stand 2| hoiirs before flushing and 
returning to service. 

4. In the case of potable water filters or similar devices, 
the dosage shall be determined by the plumbing 
official. 



601.12 Water Supply Mandatory 

Every building used for human occupancy or habitation in 
which plumbing fixtures are installed shall be provided with 
an ample supply of potable water. 

602 DEFINITIONS 

The following definitions have been moved to Chapter 2: 
AIR GAP (WATER DISTRIBUTION), CRITICAL LEVEL, 
CROSS CONNECTION, EFFECTIVE OPENING, NON 
POTABLE WATER, WATER SUPPLY SYSTEM. 

603 MATERIALS 

Water service pipe and fittings shall be of materials specified 
in 608. Water distribution pipe, tubing and fittings shall be of 
materials specified in 611. Materials shall comply with the 
standards listed in Table 603. 



601.9 Allowance for Character of Water 

601.9.1 Selection of Materials. When selecting the 
material and size for water supply pipe, tubing, or fittings, 
due consideration shall be given to the action of the water 
on the interior and of the soil, fill or other material on the 
exterior of the pipe. No material that would produce toxic 
conditions in a potable water supply system shall be used 
for piping, tubing or fittings. 

601.9.2 Used Piping. A piping material that has been used 
for other than a potable water supply system shall not be 
reused in the potable water supply system. 

601.10 Hot Water Distribution 

The hot water supply to any fixture requiring hot water shall 
be installed on the left side of the fixture unless otherwise 
specified by the manufacturer. 

601.11 Tests 

The water supply and distribution system shallbe tested in 
accordance with 31 1.3. 



Louisiana State Plumbing Code, 2000 edition© 



37 



Table 603 
Water Pipe and Fitting Materials 



Table 603 (continued) 
Water Pipe and Fitting Matenals 



T^ 



^ 



MATERIALS 


STANDARDS 


PLASTIC WATER PIPE & FITTINGS 

ABS and PVC Plastic Tubular Fittings 


ASTMF409,ANSI/NSF24, 
ANSI/NSF 14 


Joints tor IPS PVC Pipe Using 
Solvent Cement 


ASTMD2672 


Chlorinated poly(vinyl chloride) (CPVC) 
plastic pipe, Schedule 80, 2° and under 


ASTMF441,Usted 


Chlorinated Poly (Vinyl Chloride) 
(CPVC) Plastic Pipe (SDR-PR) 


ASTMF442 


CPVC Pipe a Fittings 


ASTMD2846,Usted 


Cross-linked Polyethylene/Aluminum/ 
Cross-linked Polyethylene 
(PEX-AL-PEX) pressure pipe and fittings 


ASTMF1281 


Cross-linked Polyethylene (PEX) Plastic 
Hot-and Cold-Water Distribution System 


ASTM F 877, Usted 


Cross-linked Polyethylene (PEX) Tubing 


ASTM F 876 


Cross-linked Polyethylene 

(PEX) Tubing Systems for Pressure 


CAN/CSA-B137.5-MB9, Listed 


Flexible Etastomeric Pressure Joints 


ASTM D 3139, See 308.8 


Metal Insert Fittings for PB Tubing 


ASTM F 1380 


Polyethylene/Aluminum/Polyethylene (PE-AL-PE) 
pressure pipe and fittings 


ASTM F 1282 


Polyethylene Pipe & Tubing (PE) 
Number 2305, 2306, 3306, 3406, 3408 


ASTM D 2104, ASTM 2239, 
ASTM D 2737, Usted, See 
303.8.2 


Poly (vinyi chloride) (PVC) plastc 
pipe fittings, schedule 40 


ASTM D 2466 


Pressure Rated ABS-Fittings 


ASTM D 2468, Usted 


Pressure Rated ABS-Pipe 
Number 1210, 2112, 1316 


ASTM 01527, ASTM D 2282, 
Usted, See 303.8.2 


PVC Injection Molded Gasketed 
Fittings for Pressure Applications 


CAN/CSA-B137.2-M89, Usted 


PVC Pipe, Number 1120, 1220 


ASTM D 1785, ASTM D 2241. 
Usted, See 303.8.2 


PVC Socket-Type Fittings, 
Schedule BO 


ASTM D 2467, Usted 


Socket-type chlorinated poly(vinyi 
chloride) (CPVC) plastic pipe fittings, 
Schedule 80, 2° and under 


ASTM F 439. Usted 


Threaded chlorinated poly(vinyl chloride) 
(CPVC) plastk; pipe fittings, Schedule 80, 
2° and under 


ASTM F 437, Usted 


FERROUS WATER PIPE & FITTINGS 

Cast Iron Fittings (Threaded) 


ASTM A 126 


Cast Iron Pipe (Threaded) 


ANSI A40.5 


Cast Iron Water Pipe 


ASTM A 377 


Ductile-iron water pipe 


ANSI/AWWAC151/A 21.51 


Ductile-iron water fittings 


ANSI/AWWAC110/A21.10 


Malleable Iron Fittings (Threaded) 


ASTM A 197 


Nipples Pipe (Threaded) 


FS WW-N-351a 


Stainless Steel Water Pipe Grade H 


ASTM A 268, See 303.8.4 


Steel couplings, threaded, black and galvanized 


ASTM A 865 


Steel Pipe Black and Galvanized 


ASTM A 53 


Welded and Seamless Steel Pipe 


ASTM A 53 



(continued) 



MATERIALS 


STANDARDS 


NONFERROUS PIPE & FITTINGS 

Cast Bronze Fittings for Flared Copper Tube 


ANSI B16.26 


Cast Bronze Threaded Fittings 


ASMEB16.15 


Cast Bronze Solder-Joint Pressure Fittings 


ANSIB16.18 


Cast Copper Alloy Fittings 
lor Flared Copper Tubes 


ASME 616.26 


Pipe Ranges & Flanged Fittings 


ANSI B1 6.5 


Seamless Brass Tube 


ASTM B 135 


Seamless Copper Pipe 


ASTM B 42 


Seamless Copper Tube 


ASTM B 75 


Seamless Copper Water Tube Types K, L & M 


ASTM B 88 


Seamless Red Brass Pipe 


ASTM B 43 


Seamless and Welded Copper 
Distribution Tube (Type 0) 


ASTM 8 641 


Threadless Copper Pipe (TP) 


ASTM B 302 


Welded Brass Tube 


ASTM B 587 


Welded Copper Tube 


ASTM B 447 


Welded Copper Alloy UNS No 
C 21000 Water Tube 


ASTM B 642 


Wrought-Copper and Copper 
Alloy Solder-Joint Pressure Fittings 


ASME 816.22. 

For Copper Water tube 


Wrought Seamless Copper and 
rectangularCopper-Alloy Pipe and Tube 


ASTM B 251, Square and 
tubing not applicable 



Valves-Flanged Threaded, and Welding End 



ANSIB16.34 



38 



604 QUALITY OF WATER SUPPLY 

604.1 Potable Water • _ 

Potable water shall be used for drinking, culinary, and 
domestic purposes. 

604.2 Acceptable Sources 

Where a public supply of potable water is not aviailable, 
requirements satisfactory to the governing authority shall be 
observed. 

604.3 Nonpotable Water 

Nonpotable water shall not be supplied to any fixture 
customarily classified a plumbing fixture and may only be 
used to supply industrial equipment or other appliances 
which do not require a potable supply of water and provided 
such nonpotable water shall not be accessible for drinking, 
culinary or bathing purposes. 

605 COLOR CODE IDENTIFICATION 

605.1 Color Coding 

Piping and outlets conveying nonpotable water shall be 
adequately and durably identified by a distinctive yellow- 
colored paint so that it is readily distinguished from piping 
carrying potable water. See ASME A 13.1. 

605.2 Nonpotable Water 

Where nonpotable water is used, all valves, branch fittings 
and branch terminals shall be identified by the words 
"nonpotable water." This identification shall be done in 
accordance with ASME A 13.1. Such identification shall not 
be concealed by pipe insulation and when insulated the 

Louisiana State Plumbing Code, 2000 edition© 



• 



• 



insulation shall be painted the same color as is required for 
the pipe. Maintenance of ail identification shall be the 
responsibility of the owner. 

606 PROTECTION OF POTABLE WATER SUPPLY 

606.1 Backflow and Back-Siphonage 

606.1.1 Backflow. The water distribution system shall be 
protected against backflow. Every water outlet shall be 
protected from backflow, preferably by having the outlet 
end from which the water flows spaced a distance above 
the flood level rim of the receptacle into which the water 
flows sufficient to provide a "minimum required air gap" 
as defined in ASME A 1 12.1.2. Where it is not possible to 
provide a minimum air gap, the water outlet shall be 
equipped with an accessible backflow preventer 
complying with 606.2. 

606.1.2 Back-Siphonage. Potable water supply piping, 
water discharge outlets, backflow prevention devices or 
similar equipment shall not be so located as to make 
possible their submergence in any contaminated or 
polluted liquid or substance. 

606.2 Approval of Devices 

Devices for the prevention of backflow or back-siphoning 
shall comply with the standards listed in Table 606. Devices 
installed in a potable water supply for protection against 
backflow shall be maintained in good working condition by 
the person or persons having control of such devices. The 
plumbing official may inspect such devices and, if they are 
found to be defective or inoperative, shall require the 
replacement thereof. 

Table 606 
Backflow Prevention Devices 



• 



IVIATERIALS 


STANDARDS 


Air Gap Standards 


ASME All 2.1. 2 


Backflow Prevenlefs, [)ouWe Check Valve 
Assembly 


ASSE 1015, 
ANSI/AWWAC510 


Backflow Preventers with Inter- 
mediate Atmospheric Vent 


ANSI/ASSE 1012 


Backflow Preventers. Double Check Detector Assembly 


ANSI/ASSE 1048 


Backflow Preventers, Hose Connection 


ANSI/ASSE 1052 


Backflow Preventers, Reduced Pressure Detector Assembly 


ANSI/ASSE 1047 


Backflow Preventers, Reduced 
Pressure Principle Assembly 


ASSE 1013, 
ANSI/AWWAC511 


Dual Check Vafve Type Backflow Preventer 


ASSE 1032. For 
carbonated beverage 
dispensers- post mix type 


Field Test Procedures for Backflow Preventer Assemblies 


ASSE 5010 


Manual lor the Selection. 

Installation, Maintenance and Field Testing 

ol Backflow Prevention Devices 


CAN/CSA-B64.10 


Vacuum Breakers, Anfi-Siphon, 
Pressure Type AssemWy (Outdoor Use) 


ASSE 1020 


Vacuum Breakers-Atmospheric Pipe Applied 


ANSI/ASSE 1001 


Vacuum Breakers, Back Siphonage, Pressure Type 
Assembly (Spyi Resistant) 


ANSI/ASSE 1056 


Vacuum Breakers, Hose Connection 


ANSI/ASSE 1011 


Vacuum Breakers, Laboratory Faucet 


ANSI/ASSE 1035 


Vacuum Breaker Wall Hydrants, Frost 
Resistant Automatic Draining 


ASSE 1019 


Water Closet Rush Tank Fill VaNes (BalkxxAs) 


ASSE 1002 



Louisiana State Plumbing Code, 2000 edition© 



606.3 Where Required 

606.3.1 Flushometer. Flushometer valves shall be 
equipped with an approved vacuum breaker. The vacuum 
breaker shall be installed on the discharge side of the 
flushing valve with the critical level at least 4 inches (102 
mm) above the overflow rim of the bowl. Flushometer 
tanks shall be provided with an approved backflow 
prevention device installed above the flood level rim of 
the fixture. 

606.3.2 Flush Tanks. Flush tanks shall be equipped with 
an approved ballcock. The ballcock shall be installed with 
the critical level of the vacuum breaker at least I inch 
(25.4 mm) above the full opening of the overflow pipe. In 
cases where the ballcock has no hush tube, the bottom of 
the water supply inlet shall be installed at least 1 inch 
(25.4 mm) above the full opening of the overflow pipe. A 
sheathed ballcock shall be installed on all gravity flush 
tanks in which the flush valve seat is less than one inch 
(25.4 mm) above the flood level rim of the bowl. 

606.3.3 Lawn Sprinklers and Irrigation Piping 
System. Lawn sprinkler systems and irrigation piping 
systems shall be equipped with an approved backflow 
preventer to protect against contamination of the potable 
water system. The following devices shall be acceptable: 

1. Anti-siphon vacuum breakers, reduced pressure 
zone backflow preventer and pressure type vacuum 
breakers equipped with gate or ball valves and test 
cocks. (See Appendix D of the Louisiana Slate 
Plumbing Code for acceptable types based upon the 
application.) 

2. Atmospheric type vacuum breakers shall be installed 
downstream of the last control valve at least 6 inches 
(152 mm) above the level of the highest sprinkler 
head. 

3. All protective devices shall be installed in an 
accessible location to allow for inspection and 
maintenance and to isolate the sprinkler system from 
all other piping in the system. 

4. Pressure type vacuum breakers shall be installed at 
least 12 inches (305 mm) above the level of the 
highest sprinkler head. 

606.3.4 Fixture Valve Outlets with Hose Attachments, 
Hose Bibbs and Lawn Hydrants. 

606.3.4.1 Fixture valve outlets with hose attachments, 
hose bibbs and lawn hydrants shall be protected against 
backflow by an air gap, a vacuum breaker or other 
approved back-siphonage backflow preventer on the 
discharge side of the valve. Back-siphonage backflow 
preventers may be installed directly on hose outlet 
connection threads. Vacuum breakers shall be installed 
at least 6 inches (152 mm) above the highest point of 
usage. 

EXCEPTION: Water heater drains, boiler drains 
and washing machine connections shall not be 
required to be fitted with backflow prevention 
devices. 



39 



p.3.4.2 In areas subject to temperatures of 32°F 
{0°C) or below, all hose bibb vacuum breakers shall be 
of such design that the hydrant may be drained without 
removing the backflow preventer from the hydrant. 
Regardless of area temperature, hose bibb vacuum 
breakers shall be designed and installed to prevent total 
removal from the hose bibb after installation in 
accordance with the provisions of this code and the 
manufacturer's instructions. 



p.3,S Water Supply to Steam and Hot Water Heating 
Boilers, Heat Escliangers, Chilled Water Systems, Etc, 
A backflow preventer device which will automatically 
vent to the atmosphere shall be installed in the water 
supply line to all steam and hot water space heating 
boilers, heat exchangers, chilled water systems and similar 
devices being supplied from the potable water system. 
Such devices shall prevent back-siphonage and backflow 
from the heating system into the potable supply lines 
should the supply pressure fall below the pressure in the 
heating system. Such devices shall meet the requirements 
of ASSE 1012 or 1013 and shall bear such identification 
as is required by the applicable standard. (See Appendix 
D of the Louisiana State Plumbing Code for acceptable 
types based upon the application.) 



.3.6 Connections to automatic fire sprinkler systems 
shall be required to meet the minimum requirements as 
referenced in Appendix D of the Louisiana State Plumbing 
Code. 



-out Spout Type Faucets 
Pull-out spout type faucets shall be in compliance with 
CAN/CSA B125 or lAPMO PS 49 and have an integral 
vacuum breaker or vent to atmosphere in their design or 
shall require a dedicated deck or wall mounted vacuum 
breaker. 



J.3.8 Portable Cieanang Equipment 
Where the portable cleaning equipment connects to the 
water distribution system, the water supply system shall be 
protected against backflow with an air gap, an atmospheric 
type vacuum breaker, a pressure type vacuum breaker or a 
reduced pressure principle backflow preventer. (See 
Appendix D of the Louisiana State Plumbing Code for 
acceptable types based upon the application.) 



i33 Cliemical Dispensers 
Where chemical dispensers connect to the water 
distribution system, the water supply system shall be 
protected against backflow with an air gap, an atmospheric 
type vacuum breaker, a pressure type vacuum breaker or a 
reduced pressure principle backflow preventer. (See 
Appendix D of the Louisiana State Plumbing Code for 
acceptable types based upon the application.) 

606.3.10 Deotal Pump Equipment 
Where dental pumping equipment connects to the water 
distribution system, the water supply system shall be 
protected against backflow with an air gap, an atmospheric 



type vacuum breaker, a pressure type vacuum breaker or a 
reduced pressure principle backflow preventer. (See 
Appendix D of the Louisiana State Plumbing Code for 
acceptable types based upon the application.) 

606.4 Backflow Preventer Installation 

606.4.1 Reduced pressure zone (RPZ) type backflow 
preventers, and other types of backflow preventers with 
atmospheric ports and/or test cocks, shall not be installed 
below grade (in vaults of pits) where the potential for a 
relief valve, an atmospheric port, or a test cock being 
submerged exists. 

606.4.2 Pipe applied atmospheric type vacuum breakers 
shall be installed not less than 6 inches above the flood 
level rim of the fixture receptor or device served. Pipe 
applied pressure type vacuum breakers shall be installed 
not less than 12 inches above the flood level rim of the 
fixture receptor or device served. Approved deck mounted 
vacuum breakers and vacuum breakers within equipment, 
machinery and fixtures, whether of the atmospheric or 
spill-proof pressure type, where the critical level is a fixed 
distance above the potential source of contamination, shall 
be installed not less than 1 inch (25.4 mm) above the flood 
level rim of the fixture receptor device served or source of 
contamination. 

606.5 Shut-oiT Valves and Test Cocks Required 

All pressure type backflow preventers which are designed for 
periodic field testing after installation in the pipeline shall be 
equipped with shut-off valves on both the inlet and the outlet 
side of the backflow preventer. In addition, test cocks shall be 
provided and so located that test equipment, gauges, etc., may 
be connected to the device at such points that the pressure in 
each pressure zone may be detected and, in addition, a test 
cock shall be located upstream of the upstream shut-off valve 
or installed in a special tapping on the upstream side of the 
upstream shut-off valve. But, in any case, such test cock shall 
be accessibly located as close to the device as practical. 
Where applicable approved standards specify otherwise, the 
location of test cocks shall be as specified by the standard. 
Full port ball valve shut-offs on backflow prevention sizes to 
2 inches or full port ball or resilient wedge-type shut-off 
valves for 2 1/2 inches and larger shall be used. 

606.6 Reduced Pressure Zone Backflow Preventers 
Reduced pressure zone backflow applications subject to 
periodic no flow conditions should include a single soft 
seated spring loaded check valve located immediately 
upstream of the backflow prevention device to prevent 
periodic relief valve activation caused by fluctuating supply 
pressures. 

606.7 Additional Requirements to Protect the Potable 
Water Supply 

See Appendix D, Cross Connection Control., of the Louisiana 
State Plumbing Code for additional requirements. For other 
rules and regulations regarding potable water supply 
protection, see Chapter XII (Water Supplies) of the State 
Sanitary Code of Louisiana. 



40 



Louisiana State Plumbing Code, 2000 edition® 



607 SIZING OF WATER DISTRIBUTION SYSTEM 

607.1 Minimum Sizes 

The sizing of the water distribution system shall conform to 
good engineering practice {e.g., see Appendix F). See 607.3 
for minimum size of fixture supply line and 607.4 for 
minimum pressure at the fixture outlet. 

607.2 Calculation of Sizes 

When required by the plumbing official, the sizing of the 
water distribution system shall be calculated by a registered 
mechanical engineer or other acceptable authority. 

607.3 Size of Fixture Supplies and Manifold Individual 
Distribution Lines 

607.3.1 The minimum size of fixture supply pipe or 
manifold individual distribution lines shall be in 
accordance with Table 607. 

Table 607 
Minimum Size of Fixture Supply or Distribution Line 





i 


IVIanifold 




Fixture 


Individual 




Supply 


Distribution 




Pipe Size 


LineSize 


Type of Fixture or Device 


(in.) 


(in.) 


Bathtubs (60" x 32" and smaller) 


'/2 


'/2 


Bathtubs (Larger than 60" x 32") 


^2 


'/2 


Combination Sink and Tray 


'/2 


'h 


Drinking Fountain 


^/8 


•/2 


Dishwasher (Domestic) 


•/2 


''2 


Kitchen Sink, Residential 


^2 


''2 


Kitchen Sink, Commercial 


3/4 


\ 


Lavatory 


''8 


'h ■ 


Laundry Tray 1 , 2, 
or 3 Compartments 


'^2 


VjdTray) 


Wall Hydrants 


•/2 


''2 


Shower (Single Head) 


'/2 


'/2 


Sinks (Service, Slop) 


•/2 


'/2 


Sinks Flushing Rim 


\ 


% 


Urinal (Flush Tank) 


''2 


'/2 


Urinal (Direct Flush Valve) 


\ 


% 


Water Closet (Flushometer 






Valve Type) 
Water Closet (Gravity or 
Flushometer Tank Type) 


1 

^/8 


1 

'/2 


Hose Bibbs 


'A 


V, 



1 in. = 25.4 mm 

607.3.2 For fixtures not listed, the minimum supply 
branch may be made the same as for a comparable fixture. 

607.4 Minimum Pressure 

Minimum fairly constant service pressure at the point of 
outlet discharge shall be not less than 8 psi (55.2 kPa) 
flowing for all fixtures except for direct flush valves, for 
which it shall be not less than 15 psi (103 kPa) flowing, and 
except where special equipment is used requiring higher 
pressure. In determining the minimum pressure, allowance 
Louisiana State Plumbing •Code, 2CX)0 edition® 



shall be made for the pressure drop due to friction loss in the 
piping system during maximum demand periods as well as 
head, meter, and other losses in the system. 

607.5 Auxiliary Pressure, Supplementary Tanl(s 

If the residual pressure in the system is below the minimum 
allowable at the highest water outlet when the flow in the 
system is at peak demand, an automatically controlled 
pressure tank or automatically controlled pump or gravity 
tank of sufficient capacity shall be installed. Its capacity shall 
be sufficient to supply sections of the building installation 
which are too high to be supplied directly from the public 
water main. 

607.6 Low Pressure Cutoff 

When a booster pump is used on an auxiliary pressure 
system, there shall be installed a low-pressure (< 15 psi 
gauge) cutoff on the booster pump to prevent the creation of 
negative pressures on the suction side of the water system. 
Other arrangements may be used if found adequate and if 
approved by the plumbing official. 

607.7 Variable Street Pressures 

When the street main has a wide fluctuation in pressure, the 
water distribution system shall be designed for minimum 
pressure available. 

607.8 Hazard and Noise 

607.8.1 Where water pressures are excessive or where 
required to eliminate water hammer or when deemed 
necessary by local authorities, approved engineered water 
hammer arresters or calculated air chambers shall be 
provided to safeguard the water distribution system 
against destructive water hammer hazard and noise. 

607.8.2 Approved engineered mechanical water hammer 
arresters shall be sized and installed in accordance with 
PDI-WH201, ANSI/ASSE 1010 or ANSI A112.26.1M. 
Where line water pressure exceeds 65 psi (448 kPa) in a 
water distribution system, the next larger size approved 
water hammer arrester shall be used. When water pressure 
exceeds 80 psi (552 kPa), a water pressure reducing valve 
shall be installed in accordance with 607.9. Any approved 
engineered mechanical water hammer arrester shall have 
been tested by a recognized testing laboratory and certified 
to meet the requirements of the above standard. 

607.8.3 Where calculated air chambers are installed, they 
shall be in an accessible place and each air chamber shall 
be provided with an accessible means for restoring the air 
in the event the chamber becomes waterlogged. 

607.9 Water Pressure Reducing Valve or Regulators 
607.9.1 Where water pressure within a building exceeds 
80 psi (552 kPa) static, an approved water pressure 
regulator conforming to ANSI/ASSE 1003 with strainer 
shall be installed to reduce the pressure in the building 
water distribution piping to 80 psi (552 kPa) static or less, 
whichever is consistent with good engineering practice. 
Exceptions to this requirement are service lines to sill 

41 



cocks and outside hydrants, and main supply risers in tall 
buildings where pressure from the mains is reduced to 80 
psi (552 kPa) or less at the fixture branches or at 
individual fixtures. 



Table 607.10 
Maximum Gallons Per Minute (GPM) Available^ 



h9.2 The delivery pressure variation shall not exceed 1 
psi (6.895 kPa) for every 10 psi (69 kPa) pressure change 
in the inlet pressure. The reduced pressure fall-off from its 
no-flow setting shall not exceed 17 psi (117 kPa), and with 
a difference at this point of 50 psi (345 kPa) between the 
initial and this reduced flow pressure of 50 psi (345 kPa), 
the capacity shall be not less than that shown in Table 
607.9. 

Table 607.9 
Minimum Capacity Based on Pipe Size 



Nom. Pipe Size (in) 


1/2 


3/4 


1 


1 1/4 


1 1/2 


2 


Average velocity through 
pipe (ftfs) 
Flow (gpm) 


10.5 
9.95 


10.0 
16.65 


9.5 
25.0 


9.0 
42.0 


8.5 
54.8 


7.5 
77.5 


1 in = 25.4 mm 
1 ft/s = 0.3048 m/s 
1 gpm = 0.0631 Us 















.9.4 An integral bypass check valve shall be capable of 
opening to permit a reverse flow of water through the 
reducing valve to prevent a buildup of system pressure by 
thermal expansion of the water with an increase of 
reduced pressure not exceeding 2 psi (13.8 kPa) above the 
prevailing initial pressure. 



hS The valve shall be designed to remain open to 
permit uninterrupted water flow in case of valve failure. 



,9.6 All regulators and strainers must be so constructed 
and installed as to permit repair or removal of parts 
without breaking a pipeline or removing the valve and 
strainer from the pipeline. 



.9.7 Approved valves shall comply with ANSI/ASSE 
1003. 



MO.l Hot water and cold water manifolds shall be 
sized according to Table 607.10. 



Nominal Size 
ID (Inches) 



Velocity^ 



4fps 



Sfps 



1/2 

3/4 

1 

11/4 

1 1/2 



2 

6 
10 
15 
22 



5 
11 
20 
31 



1 in = 25.4 mm 
1 fps = 0.3048 m/s 
1 gpm = 0.0631 Us 

Notes: 

1 . For velocity limitations use manufacturers' recommendations. 

2. Total gpm is the demand of all outlets. 

607.10.2 Individual distribution line size shall conform to 
Table 607 or to good engineering practice (e.g., see 
Appendix F). 

607.10.3 Individual fixture shutoff valves shall be 
installed at the outlet for each fixture. If secondary shutoff 
valves are used at the manifold, they shall be identified for 
the fixture being supplied. 

607.10.4 Piping bundles for manifold systems shall be 
supported in accordance with Chapter 3. Direction 
changes and bending radiuses shall be in accordance with 
manufacturer's recommendations. 

608 WATER SERVICE PIPE AND FITTINGS 



42 



>1 Materials Underground 
Materials for underground water service pipe and lawn 
sprinkler systems, shall be a minimum Type L copper 
tube, brass, cast iron pressure pipe, ductile-iron, or 
pressure-rated plastic as listed in Table 603. Water pipe 
and fittings with more than 8.0% lead shall not be used. 
The minimum working pressure of plastic piping installed 
outside of the foundation walls shall be 160 psi (1 103 kPa) 
at 73°F (23° C), with permanent identification markings. 

608.1.2 Materials subject to corrosion shall be protected 
when installed in corrosive soils. Approved fittings shall 
be used on the water supply system, except that changes of 
direction in copper tube (ASTM B 88) may be made with 
bends having a radius of not less than four diameters of 
the tube, providing that such bends are made by use of 
forming equipment which does not deform or create loss 
in cross-sectional area of the tube. If allowed by the 
manufacturer, bends of pressure-rated plastic pipe listed in 
Table 603 shall be installed to conform with the 
manufacturer's recommendations but in no case shall the 
bend radius be less than the requirements contained within 
Sections 61 1.1.4 through 611.1.7, as applicable. 

608.1.3 All pipes, pipe fittings, solder and flux used in the 
installation of water supply systems shall be lead free. 

ExceptBon: Leaded joints may be used for the repair of 
existing cast iron pipes. 

Louisiana State Plumbing Code, 2000 edition® 



608.2 Water Service Piping 

Water service lines shall be sized in accordance with 
accepted engineering practice (e.g., see Appendix F), but in 
no case shall the water service piping be less than one inch 
inside nominal diameter for galvanized ferrous piping or 3/4 
inch inside diameter for copper, copper alloy or approved 
noncorrosive pipe or tube. 

608.3 Service Lines Near Drain or Sewer Line 

Except as permitted in 608.4, the underground water service 
pipe and the building drain or building sewer shall be not less 
than 5 ft (1524 mm) apart horizontally and shall be separated 
by undisturbed or compacted earth. 

608.4 Permitted Installation Near Drain or Sewer Line 

The water service pipe may be placed Jiri the same trench with 
the building drain and building sewer provided the following 
conditions are met: 

1. The bottom of the water service pipe, at all points, shall 
be at least 12 inches (305 mm) above the top of the 
sewer line at its highest point. 

2. The water service pipe shall be placed on a solid shelf 
excavated at one side of the common trench. 

3. Any underground water service pipe which must cross 
a pipe that conveys sewage (e.g., building drains, 
building sewers, and other piping conveying sewage) 
shall have a minimum vertical separation of 12 inches 
(305 mm) between the outside of the water service pipe 
and the outside of the sewer pipe. The water service 
pipe should always be installed above the sewer pipe. 
At crossings, one full length of water pipe shall be 
located so both joints will be as far from the sewer pipe 
as possible. 

608.5 Stop and Waste Valves and Devices 

Combination stop and waste valves and cocks shall not be 
installed underground in a water supply system. Any fixture 
or device which incorporates a stop and waste feature is 
prohibited if the waste opening is underground or in any 
location that waste water or water-borne contaminates may 
enter the device or water supply from the ground or other 
source by reversal of flow. 

608.6 Private Water Supply 

No private supply shall be interconnected with any public 
water supply. 

608.7 Potable Water (Pressure) Lines Near Soil Absorption 
Trenches, Sand Filter Beds and Oxidation Ponds 

Underground potable water (pressure) lines shall not be 
located within 25 feet (7.6 m) of any soil absorption trenches, 
sand filter beds, or oxidation ponds' which have been installed 
for the disposal of septic tank effiuent. 

608.8 Potable Water (Pressure) Lines Near Septic Tanks, 
Mechanical Sewage Treatment Plants, and Pump Stations 

Underground potable water (pressure) lines shall not be 
located within 10 feet (3.0 m) of any septic tank, mechanical 
sewage treatment plant, or sewage pump station. 

Louisiana State Plumbing Code, 2000 edition© 



608.9 Potable Water (Pressure) Lines Near Seepage Pit, 
Cesspool, or Sanitary Pit Privy 

Underground potable water (pressure) lines shall not be 
located within 50 feet (15.2m) of any seepage pit, cesspool, 
or sanitary pit privy. 

609 WATER PUMPING AND STORAGE EQUIPMENT 

609.1 Pumps and Other Appliances 

Water pumps, tanks, filters, softeners, and all other 
appliances and devices shall be protected against 
contamination. 

609.2 Drains from Pressure Tanks, Boilers, and Relief 
Valves 

The drains from pressure tanks, boilers, relief valves and 
similar equipment shall not be directly connected to the 
drainage system. 

609.3 Cleaning, Painting, Repairing Water Tanks 

A potable water supply tank shall not be lined, painted, or 
repaired with any material which will affect either the taste or 
the potability of the water supply when the tank is returned to 
service. Tanks shall be disconnected from the system during 
such operations, to prevent any foreign fluid or substance 
from entering the distribution piping. 

609.4 Insufficient Pressure 

When the water pressure from the water main (or other 
approved sources of potable water supply) during flow is 
insufficient to supply all fixtures freely and continuously, the 
rate of supply shall be supplemented by a gravity house tank 
or booster system, (see 607.6) 

609.5 Support 

All water supply tanks shall be supported in accordance with 
the Standard Building Code or other regulations which apply. 

609.6 Overflow Pipes 

Overflow pipes for gravity tanks shall be protected against 
the entrance of insects and vermin and shall discharge above 
and within 6 inches (152 mm) of a roof or catch basin. 
Overflow pipes shall not be valved. 

609.7 Drains 

609.7.1 Water supply tanks shall be provided with the 
valved drain lines located at their lowest point and 
discharged as an indirect waste. Drains for water supply 
tanks shall be not less than shown in Table 609.7. 



Table 609.7 
Minimum Drain Size for Water Si 


upply 


Tanks 


Drain Pipe 
(in) 


Tank Capacity 
(gal) 


Drain 
(in) 


Pipe 


Tank 

Capacity 

(gal) 


1 

1 1/2 
2 


Up to 750 
751 to 1500 
1501 to 3000 


2 1/2 

3 

4 




3001 to 5000 
5001 to 7500 
Over 7500 



1 In = 25.4 mm 
1 gal = 3.7854 L 



43 



609.7.2 Each drain line shall be equipped with a quick 
opening valve of the same diameter as the pipe. 

609.8 Gravoty and Suction Tank 

Tanks used for potable water supply shall be equipped with 
tight covers which are vermin and rodent proof. Such tanks 
shall be vented with a return bend vent pipe having an area 
not less than one-half the area of the feed riser, and the vent 
opening shall be properly screened. 

609.9 Pressure Tank 

Pressure tanks used for supplying potable water shall be 
equipped with an approved vacuum relief device located on 
the top of the lank. The air inlet of this device shall be 
properly screened. 

610 WATER SUPPLY CONTROL 

6IO0I Valves Required 

An accessible shutoff valve shall be provided on the 
consumer's premises ahead of the first outlet or branch 
connection to the service or distribution pipe of each 
dwelling, dwelling unit and buildings other than dwellings 
and dwelling units. Full port ball valve shut-offs on lines to 2 
inches or full port ball or resilient wedge-type shut-off valves 
for 2^/2 inch lines and larger shall be used. When such 
shutoff valve is located in the service pipe outside the 
building, it shall be located and accessible in a manufactured, 
approved, valve box with a readily removable access cover 
which extends to grade level. When drain valves are provided 
for the distribution piping or other portion of the water supply 
system, such drains shall be above grade or otherwise located 
to prevent the possibility of backflow into the piping system 
after the system has been drained. 

610.2 Tank Controls 

Supply lines taken from pressure or gravity tanks shall be 
valved at or near the tank. 

610.3 Controls for Fixtures Within Dwellings and 
Dwelling Units 

610.3,1 Each individual fixture shall have an accessible 
shutoff valve at each outlet which will permit each fixture 
to be shut off without interfering with the water supply to 
any other fixtures. Shutoff valves for each fixture supplied 
by a manifold distribution system may be located at the 
manifold in addition to the outlet of the fixture being 
supplied. The hose bibb or hose connection shutoff valve 
shall be the only shutoff valve required on washing machine 
connectors. 



).3.2 Shutoff valves to water supply for refrigerators 
with automatic ice makers shall be accessible on the same 
floor. 

610.4 Buildings Other Than Dwellings or Dwelling Units 
610.4,1 In all buildings other than dwellings and dwelling 
units, shutoff valves shall be installed which permit the 
water supply to all fixtures and equipment in each separate 
room to be shut off without interference with the water 



supply to any other room or portion of the building or each 
individual fixture and piece of equipment shall have a 
shutoff valve which will permit each fixture and piece of 
equipment to be shut off without interfering with the water 
supply to other fixtures or equipment. 

610.4.2 Each water supply branch line 1 ^h inch or larger 
shall have a shutoff valve installed so as to isolate all 
fixtures and all pieces of equipment supplied by the 
branch line. The shutoff valve shall be installed in a 
labeled and accessible location as close to the connection 
to the supply main and/or riser as practical. 

611 WATER DISTRIBUTION PIPE, TUBING 
AND FITTINGS 

611.1 General 

611.1.1 Minimum working pressure for plastic hot and 
cold piping material shall be 100 psi (689.5 kPa) at 180°F 
(82°C). 

611.1.2 All pipes, pipe fittings, solder and flux used in the 
installation of water distribution systems shall be lead free. 

EXCEPTION: Leaded joints may be used for the repair 
of existing cast iron pipes. 

611.1.3 All pipes, pipe fittings, solder and flux shall 
conform to the standards listed in Table 603. 

611.1.4 Bends of cross-linked polyethylene (PEX) plastic 
tubing shall be installed to conform to the manufacturer's 
recommendations but in no case shall the bend radius be 
less than the following: 

1. When bent with the coil-a bending radius equivalent 
to or greater than 8 times the outside diameter of the 
tubing shall be maintained. Outside diameter is 
equal to the inside nominal diameter plus Vg inch. 

2. When bent against the coil-a bending radius 
equivalent to or greater than 24 times the outside 
diameter of the tubing shall be maintained. Outside 
diameter is equal to the inside nominal diameter plus 
Vg inch. 

611.1.5 Because the linear expansion rate for cross-linked 
polyethylene (PEX) tubing is about 1 inch/10°F for each 
100 feet (30 m) of tubing, it should not be rigidly 
anchored to any support in order to allow for freedom of 
movement during expansion and contraction. When 
installing long runs of tubing, a longitudinal clearance of 
Vg to ^/i6 inch per foot of run should be allowed to 
accommodate for thermal expansion. PEX tubing, where it 
passes through concrete or a similar building material 
which would not allow for freedom of linear expansion, 
shall be provided with a pipe sleeve of schedule 40 pipe 
which shall be built into the foundation, footing, floor, 
wall or ceiling. Such pipe sleeve shall be of sufficient 
inside diameter to allow for the free expansion and 
contraction of the PEX tubing and to prevent any rubbing 
action. 



44 



Louisiana State Plumbing Code. 2000 edition® 



• 

• 



• 



611.1.6 The maximum recommended spacing between 
horizontal supports for cross-linked polyethylene (PEX) 
tubing is 32 inches (813 mm) for nominal tu&ing 
diameters from ^/^ inch through 2 inch. It should not be 
rigidly secured to a joist or stud but should be secured 
with smooth plastic strap hangers, which permit ease of 
movement during expansion or contraction. Valve and 
fixture connections to which PEX pipe is connected shall 
be rigidly anchored. 

611.1.7 Bends of chlorinated polyvinyl chloride (CPVC) 
plastic pipe shall be installed to conform to the 
manufacturer's recommendations but in no case shall the 
bend radius be less than the following: 

1. A bending radius equivalent to or greater than 18 
inches (457 mm) for V2 and % inch inside nominal 
diameter piping. 

2. A bending radius equivalent to or greater than 24 
inches (610 mm) for 1 inch inside nominal diameter 
piping. 

611.2 Materials Above Ground 

Materials for water distribution pipes and tubing shall be 
brass, copper water tube minimum type L, stainless steel 
water tube minimum Grade H, cast iron pressure pipe, 
ductile-iron, galvanized steel, chlorinated polyvinyl chloride 
(CPVC) or cross-linked polyethylene (PEX) plastic pipe or 
tubing, all to be installed with approved fittings; except that 
changes in direction in copper tube (ASTM B 88) may be 
made with bends having a radius of not less than four 
diameters of the tube, providing that such bends are made by 
use of forming equipment which does not deform or create a 
loss in cross-sectional area of the tube. Translucent PEX 
plastic pipe or tubing, when installed above ground, shall not 
be exposed to direct or indirect surilight. 

611.3 Materials Below Ground 

Inaccessible water distribution piping under slabs shall be 
copper water tube minimum type L, brass, cast iron pressure 
pipe, ductile-iron pipe, chlorinated polyvinyl chloride 
(CPVC) or cross-linked polyethylene (PEX) plastic pipe or 
tubing, all to be installed with approved fittings or bends. All 
copper tubing joints below a building slab shall be brazed. 
Joints for plastic pipe and fittings below a building slab are 
prohibited. Any material subject to corrosion shall be 
protected when used in corrosive soils. 

611.4 Valves 

Valves shall conform to the standards listed in Table 6 11. 4 

Table 61 1.4 
Valve Standards 



MATERIALS 



STANDARDS 



Valves, Bronze Gate 



MSS SP-80 



Valves, Cast Iron Gate 



ASTM A 126 



Valves, Ball 



MSSSP-72, MSSSP-llO 



Valves, Resilient-Seated Gate 



ANSI/AWWA C509 



612 JOINTS 

612.1 General 

This section contains provisions applicable to joints 
specifically for water service and distribution piping. 
Provisions for those joining methods which are applicable to 
more than one piping system are contained in Chapter 3. 

612.2 Soldered Joints 

ii ■ . 

Soldered joints for tubing shall be made with approved 
fittings. Surfaces to be soldered shall be cleaned bright, all 
burrs shall be removed and the tubing shall be returned to full 
bore. The joints shall be properly fluxed and made with 
approved solder (See 303.7.1, item 4 and 612.6). All solder 
and flux used in the installation or repair of water supply or 
distribution systems shall be lead free. Soldered joints should 
not be made closer than 18 inches (457 mm) to an installed 
plastic-to-metal adapter in the same water line. 

612.3 Flared Joints 

Flared joints for soft tempered copper water tube shall be made 
with fittings meeting approved standards. The tubing shall be 
expanded with a proper flaring tool. 

612.4 Brazed Joints 

Brazed joints shall be made in accordance with the provisions 
of Section 6 of ANSI B31.1. Brazed joints should not be 
made closer than 18 inches (457 mm) to an installed plastic- 
to-metal adapter in the same water line. 

612.5 Joints for Plastic Water Service and Water 
Distribution Pipe and Fittings 

612.5.1 General. Plastic pipe and fittings for water 
service piping and water distribution piping may be of the 
insert type, compression type, solvent cenriented, heat 
fused, pressure-lock, or may be hot or cold flared as 
recommended by the manufacturer or the Plastic Pipe 
Institute for the particular materials being used. (See Table 
303 for approved primers and solvent cements. Also, see 
308.8.1.) 

612.5.2 Polyethylene Water Service. Stiffener inserts 
used with compression type fittings shall not extend 
beyond the clamp or nut of the fitting. For bends, the 
installed radius of pipe curvature shall be not less than 30 
pipe diameters, or the coil radius when bending with the 
coil. Coiled pipe shall not be bent beyond straight. Bends 
shall not be permitted closer than 10 pipe diameters of any 
fitting or valve. Kinked pipe shall not be used. Pipe shall 
be cut square, using a cutter designed for plastic pipe. 
Except where joined by heat fusion, pipe ends shall be 
chamfered to remove sharp edges. Heat fusion joints shall 
be made in accordance with ASTM D 2657 or ASTM F 
1290. Flared joints shall be permitted where recommended 
by the manufacturer and made by the use of a tool 
designed for that operation. 

612.6 Copper Water Tube and Stainless Steel Water Tube 

Joints for copper water tube or stainless steel water tube shall 
be formed either by the appropriate use of approved brass. 



Louisiana Stale Plumbing Code, 2000 edition® 



45 



bronze or wrought copper water fittings, properly soldered or 
brazed together, or by means of approved flare fittings as 
provided in 612.3. 

612.7 SpedaS Joints 

612.7.1 Copper Water TubSng or Stainless Steel 
Tubing to Threaded Pipe Joints. Joints from copper 
water tubing or stainless steel tubing to threaded pipe shall 
be formed by the use of bronze or copper adapter fittings. 
The joint between the copper tube or stainless steel tube 
and fittings shall be properly soldered or brazed, and the 
connection between the threaded pipe and the fitting shall 
be made with a standard pipe size threaded joint. 

612.7.2 Ground Joint Brass Connections. Ground joint 
brass connections which allow adjustment of tubing but 
provide a rigid joint when made up shall not be considered 
as slip joints. 

612.7.3 Plastic Pipe to Other Materials. Joints between 
plastic pipe and other materials shall be formed with 
proper adaption fittings as furnished by the manufacturer. 

612.7.4 Unions. Unions in the water supply system shall 
be metal-to-metal with ground seats. 

613 SAFETY DEVICES 

613.1 Shower Temperature Control Devices 
The temperature of mixed water to multiple (gang) showers 
shall be controlled by a master thermostatic valve conforming 
to ASSE 1017 or such showers shall be individually 
controlled by a scald preventative valve of the pressure 
balancing, thermostatic or combination mixing valve type 
conforming to ASSE 1016. The temperature of mixed water 
to individual showers and shower/bath combinations in all 
buildings shall be controlled by a scald preventative valve of 
the pressure balancing, or thermostatic or combination 
mixing valve type conforming to ASSE 1016. All scald 
preventative valves shall be equipped with a means to limit 
the maximum setting of the valve to 120°F (48.3° C). Handle 
position stops or any other limit setting devices shall be 
adjusted in accordance with manufacturer's instructions at 
time of installation to a maximum mixed water outlet 
temperature of 1 20°F (48.3° C). 

Table 613 
Temperature Control Device Standards 



MATERIALS 


STANDARDS 


Individual Shower Control Valves. Anti-Scald 


ASSE 1016 


Temperature Actuated Mixing Valves 
for Primary Domestic Use 


ASSE 1017 


Water Supply Valves: Mixing Valves and 
Single Control Mixing Valves 


ASSE 1029 



613.2 Thermal Expansion Control 

613.2.1 If water is heated and stored in a consumer's 
system and the system has been closed by the installation 
of a backflow preventer or a pressure reducing valve, a 
thermal expansion control shall be installed at an 
accessible location between the checking device and the 
water heating equipment to limit thermal expansion of the 
water being heated to not more than 80 pounds per square 
inch (552 kPa) static pressure at any fixture on the system. 
A potable water expansion tank or auxiliary relief valve 
set at 80 psi (552 kPa) shall be acceptable. 

613.2.2 The auxiliary relief valve shall be in addition to 
the water heater safety relief valve. This thermal 
expansion control device shall be designed and trimmed 
for repeated operation. The valve shall be a minimum V2 
inch pipe size, shall be adjustable and calibrated, and shall 
include a tag describing its function. 

613.3 Non-Shower Mixing Valves 

Non-shower and non-shower/bath combination plumbing 
fixture fittings utilizing mixing valves and single control 
mixing valves, as defined under the ASSE 1029 standard, 
shall meet the requirements of ASSE 1029. 

614 MISCELLANEOUS 

614.1 Drain Cock 

All storage tanks shall be equipped with adequate drain 
cocks. 

614.2 Line Valves 

Valves in the water supply distribution system, except those 
immediately controlling one fixture supply, when fully 
opened shall have a cross-sectional area at the smallest orifice 
or opening through which the water flows at least equal to the 
cross-sectional area of the nominal size of the pipe in which 
the valve is installed. 

614.3 Water Used for Processing 

Water used for cooling of equipment or similar purposes shall 
not be returned to the potable water distribution system. 
When discharged to the building drainage system or other 
point of disposal, the waste water shall be discharged through 
an air gap. 

614.4 Trap Primers 

614.4.1 Trap primers which are connected directly to a 
potable water system shall conform to ASSE 1018. Trap 
primers which are connected directly to a potable water 
system shall be constructed with integral air gaps. 

614.4.2 Trap primers shall be accessible and shall not be 
concealed by building or other construction. 

614.4.3 Trap primer drains shall be constructed to 
completely drain by gravity after each cycle of operation 
and, in no case, shall the drain be connected to the trap 
below the top of the trap water seal or trap outlet weir. 



46 



Louisiana State Plumbing Code, 2000 edition© 



614.4.4 Trap primer air gaps, when required, shall be 
located a minimum of 6 inches (152 mm) above the flood 
level of the floor drain or receptor served. 

614.4.5 Trap primers shall be connected to the cold water 
supply in accordance with the manufacturer's 
recommendations. 



Sizing of Water Piping System; and Appendix G - Medical 
Facilities Plumbing Systems. These provisions are applicable 
only when they are referenced in the body of the code sections 
or when included in the adopting ordinance. 



EXCEPTION: Source water may be a fixture drain for 
trap primers constructed in accord with Figure 14 of 
Appendix J. 

614.4.6 Separate cutoff valves shall not be installed 
between a trap primer and its water supply except that a 
cutoff valve for an individual fixture shall control both the 
water supply to the trap primei" and the individual fixture 
to assure a constant supply to the primer. 

615 WATER TREATMENT UNITS 

615.1 Drinking water treatment units shall meet the 
requirements of ANSI/NSF 42 and 53. Units are designed to 
be used for the reduction of specific contaminates from 
potable drinking water, such contaminates being considered 
as potential health hazards or affecting the aesthetic quality 
characteristics of potable drinking water. 

615.2 Reverse osmosis drinking water treatment systems 
shall meet the requirements of ANSI/NSF 58. Systems are 
designed to be used for the reduction of specific contaminates 
from potable drinking water supplies considered to be 
microbiologically safe and of known quality (except that 
claims for the reduction of filterable cysts may be permitted). 
Systems covered by this standard are intended for reduction 
of total dissolved solids (TDS) and other contaminates 
specified therein. 

615.3 Waste and discharge from reverse osmosis or other 
types of water treatment units shall enter the drainage system 
through an air gap. 

616 SOLAR ENERGY UTILIZATION 



• 



Solar energy systems used for heating potable water or using 
an independent medium for heating potable water shall 
comply with the applicable requirements of this code. The 
use of solar energy shall not compromise the requirements for 
cross connection or protection of the potable water supply 
system required by this code. Solar energy systems shall also 
meet the applicable requirements of the Standard Building 
Code, Standard Gas Code, Standard Mechanical Code and 
the locally adopted energy code. 

617 APPENDIX REFERENCES 

Additional provisions for water supply and distribution are 
found in the following appendices: Appendix B - Travel 
Trailers and Travel Trailer Parks; Appendix C - 
Mobile/Manufactured Homes and Mobile/Manufactured Home 
Parks; Appendix D - Cross-Connectibn Control; Appendix F - 

Loutsiana State Plumbing Code, 2000 edition© 



47 



48 Louisiana State Plumbing Code. 2000 edition® 



CHAPTER? 

SANITARY DRAINAGE 



• 



•. 



701 GENERAL 



i^ 



The provisions of this chapter shall govern the materials, 
design, construction, and installation of sanitary drainage 
systems. 

701.6 Frost ProtectSoBn 

No soil or waste pipe shall be installed or permitted outside 
of a building, or concealed in outside walls or in any place 
where they may be subjected to freezing temperatures, unless 
adequate provision is made to protect them from freezing. 

701.7 Damage to Drainage System or Public Sewer 
Wastes detrimental to the public sewer system or detrimental 
to the functioning of the sewage-treatment plant shall be 
treated and disposed of in accordance with section 1004 or an 
approved pretreatment system as directed by the plumbing 
official. 

701.8 Imdividinal or PrSvate Sewage Disposal System 
Where a public sewer is not available, an individual sewage 
disposal system shall be of a type that is acceptable and 
approved by the plumbing official or other governing 
authority having jurisdiction. See Appendix E. 

701.9 Teslts. 

The sanitary drainage system shall be tested in accordance 
with 311. 

701.10 Eraglneered Systems 

Engineered sanitary drainage and venting systems shall 
conform to the provisions of Chapter 12. 

702 DEFINITIONS ; 

The following definitions have been moved to Chapter 2: 
HORIZONTAL PIPE, UNSTABLE GROUND, VERTICAL 
PIPE. 

703 MATERIALS 

703.1 General 

Pipe, tubing, and fittings for drainage systems shall conform 
to the standards listed in Table 703. 

703.2 SpecirDC Type 

Standards listed in Table 703 apply to the specific materials 
approved for use and, as indicated in the various sections in 
this chapter, as they apply to the drainage system. 

703.3 Atjoveground Piping Within Buildings and Piping 
m Raceways or Tunnels 

703.3.1 Soil and waste piping for drainage systems shall 
be of cast iron, galvanized steel, brass or copper pipe, type 
DWV copper tube. Schedule 40 plastic piping or 
borosilicate glass. 

Louisiana State Plumbing Code, 2000 edition® 



703.3.2 Vertical soil, waste and vent stacks shall be 
designed to control expansion and contraction, in 
accordance with accepted engineering practice, to the 
satisfaction of the plumbing official. 

703.4 Underground Piping Within Buildings 

All underground drains within buildings shall be cast iron 
soil pipe, ductile-iron pipe, type DWV copper, heavy 
schedule borosilicate glass, or Schedule 40 plastic piping. 
Materials subject to corrosion shall be protected when 
installed in corrosive soils. 

Table703 
Drainage System Materials 



MATERIALS 


STANDARDS 


NONMETALLIC PIPING 

ClayDrain Pipe 


ASTI^C4 


ClayPipe Flexible Joint 


ASTMC425 


Clay Sewer Pipe 


ASTM C 700, Markings 
shall include ASTM number 


Concrete Drain Tile . 


ASTM C 412 


Concrete Perforated 


ASTMC444 


Concrete Reinforced Culverts 


ASTM C 76, 

For stomi drains only 


Concrete Reinforced Sewer Pipe 


ASTM C 361, 

For stomi drains only 


Concrete Sewer Pipe 


ASTM C 14, 

For storm drains only 


Sewer Manfioles 


ASTM C 478 


Concrete (Steel Cylinder Type) 


FSSS-P-381 


PLASTIC PIPE AND FITTINGS 

ABS-DWV Pipe and Fittings 


ASTM D 2661. Usted. See 
303.8.3 


ABS Sewer Pipe and Fittings 
(for outside building sewers, storm 
drains and storm sewers) 


ASTM D 2751. See 704.1, 
1101.5.1103.2. 
and 1103.4, Installation: 
ASTM D 2321 


Acrylonitrile-Butadiens-Styrene 
(ABS) Schedule 40 Plastic Drain 
Waste, and Vent Pipe 
with a Cellular Core 


ASTM F 628. Usied 


Coextruded Composite Pipe 


ASTM F 1488, See 303.8.3. 

303.8.5,704.1,1101.5, 

1103.2,1103.4. 


Coexiruded Composite Drain, 
Waste, and Vent Pipe (DWV) 


ASTM F 1499. See 303.8.3, 

303.8.5.704.1,1101.5, 

1103.2,1103.4. 


Coextruded PVC Plastic Pipe 


ASTM F891, See 303.8.3, 

303.8.5.704.1, 

1101.5, 1103.2, and 1103.4 


Flexible Elastomeric Non-Pressure Joints 


ASTM D 3212, See 303.8 


Large Diameter Ribbed PVC 
Sewer Pipe and Fittings 


CAN/CSA-B182.4 


Polyolefin Laboratory 
Drainage Systems 


CAN/CSA-B181.3 


PVC-DWV Pipe and Fittings 


ASTM D 2665, Usted, 
See 303.8.3 


Type PS 46 and Type PS 11 5 Sewer Pipe 
(lor outside building sewers, storm drains) 


ASTM F 789, See 704.1, 
1101.4,1103.2 and 1103.4, 
ASTM D 2321, Installation 


Type PSM PVC Sewer Pipe & Fittings 
(for outside building sewers, storm 
drains and storm sewers) 


ASTM 3034, See 704.1, 
1101.5, 1103.2, and 1103.4 
ASTM D 2321, Installation 


Type PSP PVC Sewer Pipe & Fittings 
(lor outside building sewers, storm 
drains and storm sewers) 


ASTM D 2321, Installation 



it 



(continued) 



49 



TABLE 703 (continued) 
DRAINAGE SYSTEM MATERIALS 



MATERIALS 


STANDARDS 


FERROUS PIPE AND FITTINGS 

Cast Iron Soil Pipe and Fittings 


ASTMA74.CISPIHS 


CI NO-HUB Pipe and Fittings 


CISPI Std. 301 
ASTM A 888 


Ductile-Iron Gravity Sewer Pipe 


ASTMA746 


Hubiess Cast Iron Sanitary System 


CISPI Std. 310 


Manhole Top Frames and Covers 


ASTM A 48 


NONFERROUS PIPE & FiniNGS 
Cast Copper Alloy Solder-Joint Drainage 
Fittings 


ASMEB 16.23, For Plumbing 
Drainage Waste and Vents 


Cast Copper Alloy Solder Joint 
Fittings for Sovent Drainage Systems 


ANSI B 16.32 


Copper Drainage Tube DWV 


ASTM B 306 


Lead Pipe, Bends and Traps 


FS WW-P-325 


Welded Copper and Copper 
Alloy Heat Exchanger Tube 


ASTM B 543 


Wrought Copper and Wrought Copper Alloy 

Solder-Joint Drainage Fittings 

For Plumbing Drainage Waste and Vents 


ASMEB16.29 


Wrought Copper and Copper Alloy 
Solder-Joint Fittings for Sovent 
Drainage Systems 


ANSI B16.43 


GLASS PIPE 

Borosilicate Glass Pipe and Fittings for 
DWV Applications 


ASTM C 1053 



703.5 Fittings 

Fittings on the drainage system shall be compatible to the 
type of piping used. Fittings on threaded pipe shall be of the 
recessed drainage type. See 307. 

703.6 Add Soil and Waste Piping 

Acid soil and waste piping for drainage systems shall be of a 
high silicon cast iron, borosilicate glass or other materials 
approved by the plumbing official. Fittings shall conform to 
the type of piping used. Acid soil and waste piping shall not 
be connected to the conventional plumbing system. 

704 BUILDING SEWER 

704.1 Separate Trenches 

The building sewer, when installed in a separate trench from 
the water service pipe, shall be cast iron sewer pipe, vitrified 
clay sewer pipe, or plastic piping (minimum SDR 35 or 
heavier). Joints shall be watertight and rootproof and all 
material shall be installed according to the manufacturer's 
recommendations. (See Appendix I.) All pipe and fittings 
shall bear the manufacturer's name or trademark. 

704.2 Sewer in Filled Ground 

A building sewer or building drain installed in unstable fill or 
unstable ground shall be of cast iron pipe, except that 
nonmetallic drains may be laid upon an approved continuous 
supporting system if installed in accordance with 704.1. 

704.3 Sanitary and Storm Sewers 

Where separate systems of sanitary drainage and storm 
drainage are installed in the same property, the sanitary and 
storm building sewers or drains may be laid side by side in 
one trench. 
50 



704.4 Old House Sewers and Drains 

Old building sewers and building drains may be used in 
connection with new building or new plumbing and drainage 
work only when they are found, on examination and test, to 
conform in all respects to the requirements governing new 
house sewers. The plumbing official shall notify the owner to 
make the changes necessary to conform to this code. 

704.5 Cleanouts on Building Sewers 

Cleanouts on building sewers shall be located as set forth in 
710.2. 

704.6 Minimum Size Building Sewer 

No building sewer shall be less than 4 inches in size with the 
exception of force lines. 

704.7 Backwater Valves 

704.7.1 Fixture Branches 

Backwater valves shall be installed in the branch of the 
building drain which receives only the discharge from 
fixtures located below grade. Where fixtures are located 
below the level of the top of the first upstream manhole, 
said fixtures shall be protected by a backwater valve. 

704.7.2 Material 

Backwater valves shall have all bearing parts of corrosion 
resistant material. Backwater valves shall comply with 
ASME A 112.14.1 or CAN/CSA B181.1, CAN/CSA 
B181.2. 

704.7.3 Seal 

Backwater valves shall be so constructed as to insure a 
mechanical seal against backflow. 

704.7.4 Diameter 

Backwater valves, when fully opened, shall have a 
capacity not less than that of the pipes in which they are 
installed. 

704.7.5 Location 

Backwater valves shall be so installed to be accessible for 
service and repair. 

705 DRAINAGE PIPING INSTALLATION 

705.1 Horizontal Drainage Piping 

Horizontal drainage piping shall be installed at a uniform 
slope but at slopes not less than permitted in 705.2, 705.3 and 
705.4. 

705.2 Small Piping 

Horizontal building drainage piping less than 3-inch diameter 
shall be installed with a fall of not less than '74 inch per ft (21 
mm per meter). 

705.3 Large Piping 

Horizontal building drains 3-inch diameter or larger shall be 
installed with a fall of not less than 1/8 inch per ft (10 mm 
per meter). 



Louisiana State Plumbing Code, 2000 edition© 



• 



• 



705.4 Minimum Velocity 

Where conditions do not permit building drains and sewers to 
be laid with a fall as great as that specified, then a lesser 
slope may be permitted provided the computed velocity will 
be not less than 2 fps (0.61 m/s). 

706 JOINTS 

706.1 General 

This section contains provisions applicable to joints specific 
to sanitary drainage piping. Provisipns for those joining 
methods which are applicable to more than one piping system 
are contained in Chapter 3. 

706.2 Caulked Joints 

Caulked joints for cast-iron hub-and-spigot soil pipe shall be 
firmly packed with oakum or hemp and filled with molten 
lead not less than 1 inch (25.4 mm) deep and extending not 
more than 1/8 inch (3.18 mm) below rim of hub. No paint, 
varnish, or other coatings shall be permitted on the jointing 
material until after the joint has been tested and approved. 

706.3 Joints for Plastic Pipe and Fittings 

Refer to Section 308.8 for ABS and PVC joints. Joints for a 
polyolefm laboratory drainage system shall be in accord with 
CAN/CSA-B181.3-M86. 

706.4 Elastomeric Compression Gasket for Cast Iron Soil 
Pipe 

706.4.1 A positive-seal one piece elastomeric compression 
type gasket may be used for joining hub and spigot cast 
iron soil pipe as an alternate for lead or oakum joints. The 
joint is formed by inserting an approved gasket in the hub. 
The inside of the gasket is lubricated and the spigot end of 
the pipe is pushed into the gasket until seated, thus 
effecting a positive seal. 

706.4.2 A positive-seal one piece elastomeric 
compression-type gasket for joining hub and spigot cast 
iron soil pipe may be used for drainage and waste systems 
above and below ground. 

Compression gaskets for cast iron soil pipe shall be 
neoprene, marked as such, with ASTM C 564. 

706.5 Hubless Cast Iron Soil Pipe System 

706.5.1 Joints for hubless cast iron soil pipe shall be made 
with an approved gasket and stainless steel retaining sleeve. 

706.5.2 Stainless steel couplings and gaskets complying 
with standards listed in Table 303 shall have identifying 
markers to indicate compliance. 

706.5.3 Installation of the hubless cast iron soil pipe 
system shall be in accordance with CISPl 310 or the 
manufacturer's recommendation. 

706.6 Borosilicate Glass Joints 

706.6.1 Glass to glass connections shall be made with a 
bolted compression type stainless steel (300 series) coupling 
Louisiana State Plumbing Code, 2000 edition© 



with contoured acid-resistant elastomer compression ring 
and a fluorocarbon polymer inner seal ring. 

706.6.2 Joints between glass pipe and other types of 
piping material shall be made with adapters having a TFE 
seal and according to manufacturer's recommendations. 

706.6.3 Caulked joints shall conform with 706.2 except 
that acid resistant rope and acid proof cement may be 
used. 

706.7 Joints for Ductile-Iron Gravity Sewer Pipe (bell and 
spigot) 

Joints in ductile-iron gravity sewer pipe shall be of the push- 
on joint type using a single oil resistant gasket joint. The 
gasket and the annular recess in the bell end of the pipe will 
be designed and shaped so that the gasket is locked in place 
against displacement. The oil resistant gaskets shall conform 
to ANSI/AWWA Clll-A21.il and shall comply with the 
performance requirements of the standard. 

707 USE OF JOINTS 

707.1 Clay Sewer Pipe 

Joints in vitrified clay pipe or between such pipe and other 
pipe shall be formed as provided iii 308.4, 308.5, or 707.4. 

707;2 Concrete Sewer Pipe (for storm drains only) 

Joints in concrete sewer pipe or between such pipe and metal 
pipe shall be formed as prescribed in 308.4, 308.5, or 707.4. 

707.3 Cast Iron Soil Pipe 

Joints in cast iron pipe shall be either caulked, positive-seal 
elastomeric compression gasket or a neoprene gasket and 
stainless steel retaining sleeve, as provided in 308.2, 706.2, 
706.4, and 706.5. 

707.4 PVC Transition Fittings for Dissimilar Pipe in 
Building Sewers 

707.4.1 PVC transition fittings for dissimilar pipe in 
building sewers shall be installed according to 
manufacturers' instructions. 

707.4.2 Joint Sealer Adapter - To adapt cast iron, plastic, 
fiber, asbestos cement, clay or copper pipe to all makes of 
dissimilar drain pipes with PVC joint. 

707.4.3 Flexible Coupling - To adapt any two of the 
following pipe of the same CD. or reducing sizes of any 
combination of two: clay, concrete, cast iron, steel, copper 
(DWV), asbestos, cement, fiber drain and sewer pipe, 
plastic drain and sewer pipe. 

707.5 Ductile Iron Pipe Without Push-On-Joints (plain end) 

Joints in ductile iron pipe for the building sewer without 
push-on-joints shall be made with a flexible coupling 
assembly in accordance with 308.4 or in accordance with the 
manufacturer's instructions. 



51 



708 CONNECTIONS BETWEEN DRAINAGE 
PIPING AND FIXTURES 

Connections between drainage piping and floor outlet 
plumbing fixtures shall be made by means of an approved 
flange which is attached to the drainage piping in accordance 
with the provisions of this chapter. The 4x3 closet flange shall 
be attached to the outside diameter and not to the inside 
diameter of the drainage piping. The floor flange shall be set on 
and securely anchored to the building structure. 

708.2 Connections between drainage piping and wall hung 
water closets shall be made by means of an approved 
extension nipple or horn adapter. 



3 The connection shall be bolted to the flange or carrier 
using corrosion resisting bolts, screws or assemblies 
recommended by the manufacturer. 



An approved gasket, washer, or setting compound shall 
be used between the fixture and the connection. Use of 
commercial putty or plaster shall be prohibited as the setting 
compound. 

709 PROHIBITED JOINTS AND CONNECTIONS 

709ol Draimiage System 

Any fitting or connection which has an enlargement, 
chamber, or recess with a ledge, shoulder, or reduction of 
pipe area, that offers an obstruction to flow through the drain, 
is prohibited, except as stated in 715. 



Prolnilbited FitHings or Conneclions 
Fittings or connections that offer abnormal obstruction to 
flow shall not be used. The enlargement of a 3-inch closet 
bend or stub to 4 inches shall not be considered an 
obstruction. 



710CLEANOUTS 

710.1 Material and Design 

The bodies of cleanout ferrules shall conform in thickness to 
that required for pipe and fittings of the same material, and 
they shall extend not less than 1/4 inch (6.35 mm) above the 
hub. For new work, the cleanout plug shall be of heavy brass 
or plastic not less than 1/8-inch (3.18 mm) thick and shall be 
provided with a raised nut or a recessed socket for removal. 
Both ferrule and plug shall have ASME standard tapered pipe 
threads. Heavy lead plugs may be used for repairing a 
cleanout where necessary. Nylon plastics may be used as an 
alternate material. 

710.2 Location 

710.2.1 Each horizontal drainage pipe shall be provided 
with a cleanout at the upstream end of the pipe and in 
changes of direction over 45° (0.785 rad): 

EXCEPTIONS: The following plumbing arrangements 
are acceptable in lieu of the upstream cleanout. 

1. "P" traps connected to the drainage piping with 
slip joints or ground joint connections. 

2. "P" traps into which floor drains, shower drains 
or tub drains with removable strainers discharge. 

3. "P" traps into which the straight through type 
waste and overflow discharge with the overflow 
connecting to the branch of the tee. 

4. "P" traps into which residential washing 
machines discharge. 

5. Test tees or cleanouts in a vertical pipe above the 
flood-level rim of the fixtures that the horizontal 
pipe serves and not more than 4 ft (1219 mm) 
above the finish floor. 

6. Cleanout within 6 ft (1829 mm) of the junction of 
the building drain and the building sewer which 
may be rodded both ways. 

7. Water closets for the water closet fixture branch 
only. 



.2.2 Each building drain shall be provided with a 
cleanout within 6 ft (1829 mm) of the junction of the 
building drain and building sewer. 

710.2.3 Cleanouts when installed in accordance with 
710.2.2 may be either outside the building or when inside 
the building they shall be above the flood-level rim of the 
fixtures that the horizontal pipe serves when installed on a 
soil or waste slack. 



52 



.2.4 In addition to the upstream cleanout and the 
cleanout of the junction of the building drain and building 
sewer, cleanouts shall be located along the horizontal 
piping so that: 

1. In pipe 3-inch nominal diameter or less, cleanouts 
shall be located at not more than 50 ft (15.2 m) 
intervals. 

2. In pipe 4 inches nominal diameter through 6 inches 
nominal diameter, cleanouts shall be located at not 
more than 80 ft (24.4 m) intervals. 

Louisiana State Plumbing Code, 2000 edition® 



710.3 Concealed Piping 

Cleanouts on concealed piping or pipiny under a floor slab or 
piping in a crawl space of less than 24 inches (610 mm) or a 
plenum of any depth shall be extended through and terminate 
flush with the finished wall, floor or grade or may be 
extended to the outside of the building. Where it is necessary 
to conceal a cleanout or to terminate a cleanout in an area 
subject to vehicular traffic, the coiyering plate, access door or 
cleanout shall be of the approved |type designed and installed 
for this purpose. 

710.4 Direction of Flow 

Cleanouts shall be installed to permit cleaning in the direction 
of flow. Line cleanouts which may be rodded both ways shall 
be used whenever practical. 

710.5 Use for New Fixtures Prohibited 

Cleanout plugs shall not be used for the installation of new 
fixtures or floor drains, except where approved in writing by 
the plumbing official and where another cleanout of equal 
access and capacity is provided. 

710.6 Trap Cleanouts 

710.6.1 Each fixture trap, except those cast integrally or in 
combination with fixtures in which the trap seal is 
accessible, or except when a portion of the trap is readily 
removable for cleaning purposes, shall have an accessible 
brass trap screw of ample size. Cleanout plugs or caps 
shall be watertight and gastight. Nylon plastics may be 
used as an alternate material. 

710.6.2 Cleanouts on the seal of a trap shall be made tight 
with threaded cleanout plug and approved washer. Where 
glass traps are required, slip joints or couplings must have 
a TFE seal. 

710.7 Manholes 

Sewer manholes shall be waterproofed, constructed of 
poured-in-place concrete or precast concrete pipe sections 
conforming to ASTM C 478. Bottoms shall be concrete 
poured on stabilized soil or aggregate subbase with inside 
surfaces sloped a minimum of 2 inches per foot to the pip>e 
flow channel. All pipe connections and joints shall be sealed 
with approved waterstop or gasket materials and grouted. 
Manhole top frames and covers shall be Class 30 gray cast 
iron conforming to ASTM A 48, machined for proper fit of 
covers in frame, coated with coal-tar pitch varnish and not 
less than 93% of the specified vyeight for each casting. 
Covers shall have the word "SEWER" cast in large letters. 
Similar, sealed covers with gaskets and cap screws or bolts 
shall be used where subject to flooding. (See Appendix J, 
Figure 13.) 

711 SIZE OF CLEANOUTS 

711.1 Pipes Less Than 8-inch Nominal Size 

Cleanouts shall be the same nominal size as the pipe to which 
they are connected. 



Exceptions: 

1. Pipes larger than 4-inch nominal size may be served 
by a 4-inch cleanout. 

2. A 1 1/4-inch "P" trap connected with slip joints or 
ground joint connections may be used to serve 1 1/2- 
inch pipe. 

3. A 1 1/2-inch "P" trap connected with slip joints or 
ground joint connections may be used to serve a 2- 
inch pipe. 

711.2 Pipes 8 Inches and Larger Nominal Size 

711.2.1 Building drains may be served with a 4-inch 
cleanout. 

711.2.2 For building sewers 8 inches and larger, 
manholes shall be provided and located at each change in 
direction and at intervals of not more than 400 ft (121.9 
m). Manholes and manhole covers shall conform to 710.7. 

711.2.3 Building drains 8-inch nominal size and larger 
shall have cleanouts located at intervals of not more than 
100 ft (30.5 m) and at each change of direction over 45° 
(0.785 rad). 

712 CLEANOUT CLEARANCES 

712.1 Small Pipe 

Cleanouts smaller than 3 inches shall be so installed that 
there is a clearance of not less than 12 inches (305 mm) for 
the purpose of rodding. 

712.2 Large Pipe 

Cleanouts on 3 inch or larger pipes shall be so located that 
there is a clearance of not less than 18 inches (457 mm) for 
the the purpose of rodding. 

713 FIXTURE UNITS 

713.1 Values for Fixtures 

Fixture unit values as given in Table 713.1 designate the 
relative load weight of different kinds of fixtures which shall 
be employed in estimating the total load carried by a soil or 
waste pipe and shall be used in connection with the tables of 
sizes for soil, waste, and vent pipes for which the permissible 
load is given in terms of fixture units. 



Louisiana State Plumbing Code, 2000 edition® 



53 



Table 713.1 
Fixture Units Per Fixture or Group 



Fixture Type 



Fixture-Unit 
Value As Load 
Factors 



Minimum Size 
of Trap (in) 



Bathroom group consisting of 




water closet, lavatory, 




and bathtub or shower 


6 


Bathtub^ (with or without 




overhead shower) or whirlpool 




attachments 


2 


Bidet 


2 


Combination sink and tray 


3 


Combination sink and tray with 




food disposal unit 


4 


Dental unit or cuspidor 


1 


Dental lavatory 


1 


Drinking fountain 


1/2 


Dishwashing machine^ domestic. 
Floor drains^ 


2 


1 


Kitchen sink, domestic 


2 


Kitchen sink, domestic with food 




waste grinder and/or dishwasher 


3 


Lavatory^ 


1 


Lavatory^ 


2 


Lavatory, barber, beauty parlor 


2 


Lavatory, surgeon's 


2 


Laundry tray (1 or 2 




compartments) 


2 


Shower stall, domestic 


2 


Showers (group) per head^ 


3 


Sinks 




Surgeon's 


3 


Flushing rim (with valve) 


8 


Service (trap standard) 


3 


Service ("p" trap) 


2 


Pot, scullery, etc.^ 


4 


Urinal, pedestal, siphon 




jet, blowout 


8 


Urinal, wall lip 


4 


Urinal, Washout 


4 


Washing machines 




(commercial)^ 




Washing machine (residential) 


3 


Wash sink (circular or multiple) 




each set of faucets 


2 


Water closet, flushometer 




tank, public or private 


3 


Water closet, private installation 


4 


Water closet, public installation 


6 



1 1/2 

Nominal 1 1/2 

1 1/2 

Separate 

traps 1 1/2 

1 1/4 

1 1/4 

1 

1 1/2 

2 

1 1/2 

1 1/2 

Small P.O. 1 1/4 

Large P.O. 1 1/2 

1 1/2 

1 1/2 

1 1/2 
2 



1 1/2 
3 
3 
2 
1 1/2 

Notes 
Notes 
Notes 



Nominal 1 1/2 

Notes 
Notes 
Notes 



1 in = 25.4 mm 
Notes: 

1. A showerhead over a bathtub or whirlpool bathtub attachments 
does not increase the fixture value. 

2. See 713.2 and 713.3 for methods of computing unit value of 
fixtures not listed in Table 713.1 or for rating of devices with 
intermittent flows. 

3. See Table 713.2. 

4. Lavatories with 1 1/4 oc 1 1/2-inch trap have the same load value; 
larger P.O. plugs have greater flow rate. 

5. Size of floor drain shall be determined by the area of the floor to be 
drained. The drainage fixture unit value need not be greater than 1 
unless the drain receives indirect discharge from plumbing fixtures, 
air conditioner or refrigeration equipment. 

6. Trap size shall be consistent with fixture type as defined in industry 
standards. 



54 



713.2 Fixtures Not Listed 

Fixtures not listed in Table 713.1 shall be estimated in 

accordance with Table 713.2. 

Table 713,2 
Fixtures Not Listed 



Fixture Drain or Trap Size 
(in) 



Fixture-Unit Value 



1 V4 and smaller 

1 1/2 

2 

3 
4 



I in = 25.4 mm. 

713.3 Values for Continuous Flow 

For a continuous or semicontinuous flow into a drainage 
system, such as from a pump, pump ejector, air conditioning 
equipment, or similar device, two fixture units shall be 
allowed for each gpm of flow (31.7 fixture units for each liter 
per second of flow). 

713.4 Air Conditioning Units 

The condensate or waste from an air conditioning unit shall 
be classified as a plumbing fixture only if connected to the 
plumbing system. 

714 DRAINAGE SYSTEM SIZING 

714.1 Maximum Fixture Unit Load 

The maximum number of fixture units that may be connected 
to a given size of building sewer, building drain, horizontal 
branch, or vertical soil or waste stack is given in Tables 714.1 
and 714.2. 

Table 714.1 

Building Drains and Sewers 

(Maximum Number of Fixture-Units that may be Connected to 

Any Portion^ of the Building Drain or the Building Sewer^) 



Diameter 
of Pipe 



Fall in Inches Per Foot 



(in.) 


1/16 


1/8 


1/4 


1/2 


2 




- 


21 


26 


3 




203 


273 


363 


4 




180 


216 


250 


5 




390 


480 


575 


6 




700 


840 


1,000 


8 


1,400 


1.600 


1,920 


2.300 


10 


2,500 


2,900 


3,500 


4,200 


12 


3.900 


4,600 


5,600 


6,700 


15 


7,000 


8.300 


10,000 


2,000 



I in = 25.4 mm. 

Notes: 

1. Includt'.s branches of the building drain. The minimum size of any 
building drain serving a water closet shall be ?". 

2. No building sewer shall be less than 4 inches in size 
."i. Not over two water closets. 

Louisiana State Plumbing Code, 2000 edition© 



Table 714.2 
Horizontal Fixture Branches and Stacks 



• 







MAXIMUM NO. OF FIXTURE UNITS THAT 




c 


MAY BE CONNECTED TO: 




)NE STACK OF 


MORE THAN 3 STORIES 


DIAMETER 


ANY 
HORIZONTAL 


3 STORIES 
OR 3 , 


IN HEIGHT 


OF 




TOTAL AT ONE 


PIPES 


FIXTURE 


INTERVALS TOTAL for 


STORY OR BRANCH 


(in) 


BRANCHl-4 


MAXIMUM 


STACK 


INTERVAL 


IV4 


1 


2 


2 


1 


11/2 


3 


4 


8 


2 


2 


6 


10 


24 


6 


3 


202 


303 


603 


162 


4 


160 


240 


500 


90 


5 


360 


540 i 


1,100 


200 


6 


620 


960 


1,900 


350 


8 


1,400 


2,200 


3,600 


600 


10 


2,500 


3,800 


5,600 


1,000 


12 


3,900 


6,000 


8,400 


1,500 


15 


7,000 


— 


— 


— 



1 in = 25.4 mm 

Notes: 

1 . Does not include branches of the building drain. 

2. Not over two water closets. 

3. Not over six water closets. 

4. 50% less for battery vented fixture branches, no size reduction permitted 
for battery vented branches throughout the entire branch length. 

5. The minimum size of any branch or stack serving a water closet shall be 3". 

714.2 Minimum Size of Soil and Waste Stacks 

No soil or waste stack shall be smaller than the largest 
horizontal branch connected thereto except that a 4x3 water 
closet connection shall not be considered as a reduction in 
pipe size. The soil or waste stack shall run undiminished in 
size from its connection to the building drain to its 
connection to the stack vent. 

714.3 Future Fixtures 

When provision is made for the future installation of fixtures, 
those provided for shall be considered in determining the 
required sizes of drain pipes. Construction to provide for such 
future installation shall be terminated with a plugged fitting 
or fittings at the stack so as to form no dead end. 

714.4 Underground Drainage Piping 

Any portion of the drainage system installed underground or 
below a basement or cellar shall not be less than 2-inch 
diameter. In addition, any portion of the drainage system 
installed underground which is located upstream from a 
grease trap or grease interceptor as we|l as the underground 
horizontal branch receiving the discharge therefrom shall not 
be less than 3-inch diameter. 

715 OFFSETS IN DRAINAGE PIPING IN 
BUILDINGS OF FIVE STORIES OR MORE 

715.1 Offsets of 45 Degrees or Less 

An offset in a vertical stack, with a change of direction of 45° 
(0.785 rad) or less from the vertical^ may be sized as a 
straight vertical stack. In case a horizontal branch connects to 
Louisiana State Plumbing Code, 2000 edition® 



the stack within 2 ft (610 mm) above or below the offset, a 
relief vent shall be installed in accordance with 917.3, except 
that when the offset stack is sized for a building drain (see 
Table 714.1, Column 5) the relief vent may be omitted. 

715.2 Above Highest Branch 

An offset above the highest horizontal branch is an offset in 
the stack vent and shall be considered only as it affects the 
developed length of the vent. 

715.3 Below Lowest Branch 

In the case of an offset in a soil or waste stack below the 
lowest horizontal branch, no change in diameter of the stack 
because of the offset shall be required if it is made at an angle 
of not greater than 45° (0.785 rad) from the vertical. If such 
an offset is made at an angle greater than 45° (0.785 rad) 
from the vertical, the required diameter of the offset and the 
stack below it shall be determined as for a building drain 
(Table 714.1). 

715.4 Offsets of More Than 45 Degrees 

A stack with an offset of more than 45° (0.785 rad) from the 
vertical shall be sized as follows: 

1. The portion of the stack above the offset shall be sized 
as for a regular stack based on the total number of 
fixture units above the offset. 

2. The offset shall be sized as for a building drain (Table 

714.1, Column 5). 

3. The portion of the stack below the offset shall be sized 
as for the offset or based on the total number of fixture 
units on the entire stack, whichever is larger (See Table 

714.2, Column 4). 

4. A relief vent for the offset shall be installed as provided 
in Chapter 9 and in no case shall a horizontal branch 
connect within the offset or within 2 ft (610 mm) above 
or below the offset. 

715.5 Omission of Offset Reliefs 

Offset relief vents required by 715.4 may be omitted by 
sizing the stack and its offset one pipe size larger than 
required for a building drain (see Table 714.1, Column 5) but 
in no case shall the entire stack and offset be of less cross- 
sectional area than that required for a straight stack plus the 
area of an offset relief vent as provided in 917.2. Omission of 
relief vents in accordance with this section shall not 
constitute approval of horizontal branch connections within 
the offset or within 2 ft (610 mm) above or below the offset. 
See 7 15. 1 for offsets of 45° (0.785 rad) or less. 

716 WASTE STACKS SERVING KITCHEN SINKS 

In a one or two family dwelling only in which the waste stack 
or vent receives the discharge of a kitchen sink and also 
serves as a vent for fixtures connected to the horizontal 
portion of the branch served by the waste stack, the minimum 
size of the waste stack up to the highest sink branch 
connection shall be 2-inch diameter. Above that point the size 
of the stack shall be governed by the total number of fixture 
units vented by the stack. 



55 



717 SUMPS AND EJECTORS 

in A BuiSdflinig Drams Below Sewer 
Building drains which cannot be discharged to the sewer by 
gravity flow shall be discharged into a tightly covered and 
vented sump from which the liquid shall be lifted and 
discharged into the building gravity drainage system by 
automatic pumping equipment or by any equally efficient 
method approved by the plumbing official. 

717.2 Check and Gate VaSve Required 

A check valve and a gate valve shall be installed in the pump 
or ejector discharge piping between the pump or ejector and 
the gravity drainage system. Such valve shall be accessibly 
located above the sump cover required by 717.1, or when the 
discharge pipe from the ejector is below grade, the valves 
may be accessibly located outside the sump below grade in 
an access pit with removable access cover. 

717.3 Sewage Ejector Sump Constructnoo 

Sumps may be constructed of cast iron or monolithicly 
poured reinforced concrete. When concrete sumps are used, a 
cover attachment ring shall be embedded in the concrete in 
such a way as to be watertight and gastight. The attachment 
ring shall be designed to fit the sump cover and allow a 
gastight and watertight seal to be made. Other engineered 
sump construction and materials may be accepted by the 
plumbing official when designed to be watertight and 
gastight and otherwise meet the requirements of this section. 



The system of drainage piping below the sewer level shall be 
installed and vented in a manner similar to that of the gravity 
system. 

717.5 Dttiplex EquSpmenit 

Sumps receiving the discharge of more than six water closets 
shall be provided with duplex pumping equipment. 

717.6 Ymt Sizes 

Building sump vents shall be sized in accordance with Table 
920 but shall in no case be sized less than 1 V2 inches. 

717.7 Separate Vents 

Vents from pneumatic ejectors or similar equipment may be 
carried separately to the open air as a vent terminal (see 915). 

717.8 Coniniecltioms 

Direct connection of a steam exhaust, blowoff, or drip pipe 
shall not be made with the building drainage system. Waste 
water when discharged into the building drainage system 
shall be at a temperature not higher than 140°F (60°C). When 
higher temperatures exist, proper cooling methods shall be 
provided. 

717.9 Pompmg Statnom 

717.9.1 A pumping system shall include the sump pump, 
pit and discharge piping as defined below: 

1. Sump Pump: An automatic water pump for the 
removal of drainage from a sump, pit or low point in 

56 



a residential, commercial or industrial property. 
Capacity and head shall be appropriate to anticipated 
use requirements. 

2. Sump Pit: The sump pit shall be not less than 18 
inches (457 mm) diameter and 24 inches (610 mm) 
deep, unless approved by the plumbing official. The 
pit shall be accessible and located such that all 
drainage flows into the pit due to gravity. The sump 
pit may be constructed of tile, concrete, steel, plastic 
or other approved materials. The pit bottom shall be 
solid and provide permanent support for the pump. 
The sump pit shall be fitted with a removable cover 
adequate to support anticipated loads in the area of 
use and to prevent refuse from entering the pit. 

3. Discharge piping: Discharge piping shall meet the 
requirements of 717.2. 

717.9.2 Electrical service outlet when required shall meet 
the requirements of the NFiPA 70 or local codes. 

717.9.3 Sumps which receive and discharge liquid wastes 
or raw sewage from plumbing fixtures shall meet the 
applicable requirements of 717.3. 

717.10 Maximum Effluent Level 

The effluent level control etc. shall be adjusted and 
maintained to at all times prevent the effluent in the sump 
from rising to within 2 inches (5 1 mm) of the invert of the 
gravity drain inlet into the sump. 

717.11 Ejector Connection to the Drainage System 
Pumps when connected to the drainage system shall connect 
to the building sewer or shall connect to a wye fitting in the 
building drain a minimum of 10 ft (3048 mm) from the base 
of any soil stack, waste stack or fixture drain. 

717.12 Macerating Systems 

Macerating toilet systems shall be installed per the 
manufacturer's instructions. The outlet piping from the 
grinder pump shall not be less than 3/4 inch and shall be 
fitted with a check valve and a full-flow gate or ball valve. 

718 APPENDIX REFERENCES 

Additional provisions for sanitary drainage are found in the 
following appendices: Appendix B - Travel Trailers and 
Travel Trailer Parks; Appendix C - Mobile/Manufactured 
Homes and Mobile/Manufactured Home Parks; Appendix E - 
Private Sewage Disposal; Appendix G - Medical Facilities 
Plumbing Systems; and Appendix I - Installation of Building 
Sewers. These provisions are applicable only when they are 
referenced in the body of the code sections or when included 
in the adopting ordinance. 



Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 8 

INDIRECT AND SPECIAL WASTES 



• 



801 GENERAL 

801.1 Scope 

The provisions of this chapter shall govern the materials, 
design, construction, and installation of indirect and special 
wastes systems. 

801.4 Neutralizing Device 

In no case shall corrosive liquids, spent acids, or other 
harmful chemicals which might destroy or injure a drain, 
sewer, soil or waste pipe, or which might create noxious or 
toxic fumes, discharge into the plumbing system without 
being thoroughly diluted or neutralized by passing through a 
properly constructed and acceptable dilution or neutralizing 
device. Such device shall be automatically provided with a 
sufficient intake of diluting wateripr neutralizing medium, so 
as to make its contents noninjuribus before being discharged 
into the soil or sewage system. 

801.5 Tests 

The indirect and special waste system shall be tested in 
accordance with 311. 

802 DEFINITIONS 

The following definitions have been moved to Chapter 2: 
AIR GAP (DRAINAGE SYSTEM), FLOOR SINK. 

803 MATERIAL AND SIZE 

The material and size of indirect waste piping shall be in 
accordance with the provisions applicable to sanitary 
drainage piping in Chapter 7. Acid and chemical indirect 
waste pipes shall be of materials unaffected by the discharge 
of such wastes. 

804 INDIRECT WASTE CONNECTIONS 

804.1 Food Handling 

Establishments engaged in the storage, preparation, selling, 
serving, processing or other handling of food shall have the 
waste piping from all food handling equipment indirectly 
connected to the drainage system through an air gap or air 
break as specified in Section 806. Food handling equipment 
includes but is not limited to the following: any sink where 
food is cleaned, peeled, cut up, rinsed, battered, defrosted or 
otherwise prepared or handled; potato peelers; ice cream 
dipper wells; refrigerators; freezers; walk-in coolers or 
freezers; ice boxes; ice making machines; fountain type drink 
dispensers; rinse sinks; cooling or refrigerating coils; laundry 
washers; extractors; steam tables; steam kettles; egg boilers; 
coffee urns; or similar equipment. 



EXCEPTION: An air gap is the only acceptable method 
of indirectly connecting any food handling equipment 
wherein the indirect waste pipe may be under a vacuum. 

804.2 Commercial Dishwashing Machines 

Commercial dishwashing machines shall be indirectly 
connected. 

804.3 Connections 

804.3.1 Water Supply Connections 

Drains, overflows or relief lines from the water supply 
system shall waste into an indirect waste receptor through 
an air gap. 

804.3.2 Air Conditioning Unit Connections 

Indirect waste connections shall be provided for drains, 
overflows, or relief lines from air conditioning units. 

804.4 Sterile Materials 

Appliances, devices, or apparatus such as stills, sterilizers, 
and similar equipment, requiring water and waste 
connections and used for sterile material, shall be indirectly 
connected or provided with an air gap between the trap and 
the appliance. 

804.5 Drips 

Appliances, devices, or apparatus not regularly classed as 
plumbing fixtures but which have drips or drainage outlets 
shall be drained by indirect waste pipes discharging into an 
open receptacle as provided in 804.1. 

805 LIMITATIONS 

805.1 Maximum Length 

805.1.1 Indirect waste pipe exceeding 2 ft (610 mm) long 
shall be trapped. 

805.1.2 The maximum length of the indirect waste to 
indirect waste receptor shall not exceed 15 ft (4527 mm). 

805.2 Cleaning 

Indirect waste piping shall be so installed as to permit ready 
access for flushing and cleansing. 

806 INDIRECT WASTE METHODS 

806.1 Air gap 

The air gap between the indirect waste and the building 
drainage system shall be at least twice the diameter of the 
effective opening of the indirect waste pipe, but in no case 
less than 2 inches (51 mm), and shall be provided by 
extending the indirect waste pipe to an open, accessible floor 
sink, service sink, floor drain, hub drain or other suitable 
fixture which is properly trapped and vented. The indirect 
waste pipe shall terminate a sufficient distance above the 



Louisiana State Plumbing Code, 2000 edition® 



57 



flood level rim of the sink or receptor to provide the 
minimum required air gap and shall be installed in 
accordance with other applicable sections of this code. 



Air break 

The air break between the indirect waste and the building 
drainage system shall be installed such that the level of the 
lowest outlet located on the fixture, device, appliance or 
apparatus (to which the indirect waste pipe connects) is above 
the flood level rim of the receiving sink or other receptor by a 
vertical distance of at least twice the diameter of the effective 
opening of the indirect waste pipe, but in no case less than 2 
inches (51 mm). In addition, the indirect waste pipe shall 
terminate below the flood level rim of the receiving sink or 
other receptor a distance equal to not more than '/2 the 
diameter of the effective opening of the indirect waste pipe. 



Cleamilniness 

The sink or receptor receiving indirect wastes shall be water- 
supplied if the waste stream contains or is expected to contain 
a sufficient amount of organic matter capable of causing 
odors or otherwise causing a nuisance due to an insufficient 
dilution of the waste material discharged into the sink or 
receptor. 

8(07 INDIRECT WASTE METHODS 

807.1 Receptors 

807.1.1 InstaBlation. Waste receptors serving indirect 
waste pipes shall not be installed in any toilet room, nor in 
any inaccessible or unventilated space such as a closet or 
storeroom. 



807.5 Swimming Pools 

Piping carrying waste water from swimming or wading pools, 
including pool drainage, backwash from filters, water from 
scum gutter drains or floor drains which serve walks around 
pools, shall be installed as an indirect waste utilizing a 
circulation pump, if necessary, when indirect waste line is 
below the sewer grade. 

808 APPENDIX REFERENCES 

Additional provisions for indirect and special wastes are 
found in the following appendices: Appendix B - Travel 
Trailers and Travel Trailer Parks; Appendix C - 
Mobile/Manufactured Homes and Mobile/Manufactured Home 
Parks; Appendix E - Private Sewage Disposal; Appendix G - 
Medical Facilities Plumbing Systems. These provisions are 
applicable only when they are referenced in the body of the 
code sections or when included in the adopting ordinance. 



M,2 Strainers and Baskets. Every indirect waste 
receptor receiving discharge containing particles that 
would clog the receptor shall be equipped with a basket or 
other device which shall prevent passage into the drainage 
system of solids ^Ij inch (12.7 mm) or larger in size. The 
basket or device shall be removable for cleaning purposes. 



M.3 Splashing. All plumbing receptors receiving the 
discharge of indirect waste pipes shall be of such shape 
and capacity as to prevent splashing or flooding. No 
plumbing fixture which is used for domestic or culinary 
purposes shall be used to receive the discharge of an 
indirect waste pipe. 

807.2 Clear Water Wastes 

Water lifts, expansion tanks, cooling jackets, sprinkler 
systems, drip or overflow pans, or similar devices which 
waste clear water only, shall discharge into the building 
drainage system through an indirect waste. 

807.3 Hot Water Drainage 

A steam pipe shall not connect directly to any part of a 
drainage system, nor shall any water above 140°F (60°C) be 
discharged directly into any part of a drainage system. 

807.4 Drinking Fountains 

Drinking fountains may be installed with indirect wastes. 



58 



Louisiana State Plumbing Code. 2000 edition® 



CHAPTER 9 

VENTS 



901 GENERAL 

901.1 Scope 

The provisions of this chapter shall govern the materials, 
design, construction, and installation of vents. 

901.2 Protection of Trap Seals 

The protection of trap seals from siphonage or back pressure 
shall be accomplished by the appropriate use of soil or waste 
stacks, vent, revents, back vents, loop vents, circuit or 
continuous vents or combination thereof, installed in 
accordance with the requirements of this chapter and the 
limitations set forth in Section 303.8.3. 

901.4 Tests 

The venting system shall be tested in accordance with 3 11. 2. 

901.5 Engineered Systems 

Engineered sanitary drainage and venting systems shall 
conform to the provisions of Chapter 12, Alternate Designed 
Plumbing Systems. 

902 DEFINITIONS 

902.1 The following definition has been deleted without 
substitution: AIR ADMITTANCE VALVE. 

902.2 The following definitions have been moved to Chapter 
2: ACCESS COVER, BATTERY VENTING, BRANCH 
INTERVAL, BRANCH VENT, CIRCUIT VENT, 
COMMON VENT, CONTINUOUS VENT, CROWN OF 
TRAP, DEPTH OF WATER SEAL, INDIVIDUAL VENT, 
LOOP VENT, MAIN VENT, RESIDENTIAL BUILDINGS, 
SIDE VENT, WET VENT, YOKE VENT. 

902.3 The following definitions have been moved to 
Appendix L: DISCHARGE PIPE, DISCHARGE UNIT, 
VENTILATING PIPE. 



903 MATERIALS 

903.1 Vents 

Pipe, tubing, and fittings for the vent piping system shall 
comply with the provisions of Chapter 7. 

903.2 Specific Type 

Standards given in Table 703 apply to the specific materials 
approved for use and as indicated in the various sections in 
this chapter. 

903.3 Piping Above Ground 

Vent piping shall be of cast iron, galvanized steel, brass or 
copper pipe, copper tube of a weight not less than that of 



copper drainage tube Type DWV, Schedule 40 plastic piping, 
or borosilicate glass. 

903.4 Piping Underground 

Vent piping placed underground shall be of cast iron, copper 
tube of a weight not less than that of Type DWV, Schedule 
40 plastic piping or heavy schedule borosilicate glass, 
provided that other materials may be used for underground 
vents when found adequate and installed as directed by the 
Plumbing Official. Materials subject to corrosion shall be 
protected when installed in corrosive soil. 

903.5 Fittings 

Fittings shall be compatible to the type of pipe used in the 
vent system as required by 903.2 and 903.3. 

903.6 Acid System 

Vent piping on acid-waste systems shall conform to 703.6. 



904 VENT STACKS 

904.1 Installation 

A vent stack or main vent shall be installed with a soil or 
waste stack whenever back vents, relief vents or other branch 
vents are required in two or more branch intervals. No fixture 
shall be permitted to drain into any stack above any vent 
connection. 

904.2 Terminal 

The vent stack shall terminate independently above the rorf 
of the building or shall be connected with the extension of the 
soil or waste stack (stack-vent) at least 6 inches (152 mm) 
above the flood-level rim of the highest fixture. 

904.3 Main Stack 

904.3.1 Every building in which plumbing is installed 
shall have at least one main vent stack or stack vent, of not 
less than 3-inch (76 mm) diameter, for each building 
drain, when connected separately to a building sewer, 
septic tank, or other disposal system approved by the 
plumbing official. Such vent shall run undiminished in 
size and as directly as possible from the building drain 
through to the open air above the roof. 

904.3.2 The main vent stack in a detached garage or other 
accessory building where only a washing. machine or 
laundry tray is installed may be 1 1/2 inches (38 mm). 

905 VENT TERMINALS 

905.1 Roof Extension 

Extensions of vent pipes through a roof shall be terminated at 
least 6 inches (152 mm) above the roof, except that where a 
roof is to be used for any purpose other than weather protect it)n. 



Louisiana State Plumbing Code, 2000 edition© 



59 



the vent extension shall be run at least 7 ft (2134 mm) above the 
roof. 

905.2 Frost Closure 

Where there is possibility of frost closure, the vent extension 
through a roof shall be at least 3-inch diameter. When it is 
found necessary to increase the size of the vent terminal, the 
change in diameter shall be made at least 1 ft (305. mm) 
inside the building. 

905.3 Flashlinigs 

The juncture of each vent pipe with the roof line shall be 
made watertight by proper flashing. 



Vent terminals shall not be used to support flag poles, TV 
aerials, or similar items, except when the piping has been 
anchored to the construction and approved as safe by the 
plumbing official. 

9§5.5 Location off Vent Termlna! 

A vent terminal from a drainage system shall not be located 
directly beneath any door, window or other fresh air intake 
opening of the building or of an adjacent building, nor shall 
any such vent terminal be within 10 ft (3048 mm) 
horizontally of such an opening unless it is at least 2 ft (610 
mm) above the top of such opening. 

905.6 Exlteinisloiis Througls Wall 

Vent terminals extending through a wall shall terminate at 
least 6 inches (152 mm) above the roof and the opening shall 
face upward. Vent terminals shall not terminate under the 
overhang of the building. 

905.7 Air Admittance Valves for Veiitimg Plumbing 
Fixtures amd Fixture Branclhes 

Air admittance valves are not approved for venting .of 
plumbing fixture traps. 

906 VENT GRADES AND CONNECTIONS 

906,11 Grade 

All vent and branch vent pipes shall be so graded and 

connected as to drip back to the soil or waste pipe by gravity. 



j.2,1 Where vent pipes connect to a horizontal soil or 
waste pipe, the vent shall be taken off above the center 
line of the soil pipe, and the vent pipe shall rise vertically, 
or at an angle not exceeding 45° (0.785 rad) from the 
vertical, before offsetting horizontally. 



5,2,2 Where vent pipes connect at or below the lowest 
fixture connection, to a vertical soil or waste pipe, such 
vent shall be taken off at an angle not exceeding 45° 
(0.785 rad) to the vertical to a point at least 6 inches (152 
mm) above the flood level rim of the lowest fixture it is 
venting before offsetting horizontally. 



B.3 Height Above Fixtures 
A connection between a vent pipe and a vent stack or stack 
vent shall be made at least 6 inches (152 mm) above the flood 
level rim of the highest fixture served by the vent. Horizontal 
vent pipes forming branch vents, relief vents, or loop vents 
shall be at least 6 inches (152 mm) above the flood level rim 
of the highest fixture served 

907 BAR AND FOUNTAIN SINK TRAPS 

Traps serving sinks which are part of the equipment of island 
bars, island soda fountains, island counters and similar 
equipment need not be conventionally vented when the 
location and construction of such bars, soda fountains and 
counters make it impossible to do so. When these conditions 
exist, traps which are roughed in above the floor shall be 
vented by extending the vent as high as possible, but not less 
than the drainboard height and then returning it downward 
and connecting it to the horizontal sink drain immediately 
downstream from the vertical fixture drain. The return vent 
shall.be connected to the horizontal branch through a wye- 
branch fitting and shall, in addition, be provided with a foot 
vent taken off the vertical fixture vent by means of a wye- 
branch immediately below the floor and extending to the 
nearest partition and then through the roof to the open air or 
may be connected to other vents at a point not less than 6 
inches (152 mm) above the flood level rim of the fixtures 
served. Drainage fittings shall be used on all parts of the vent 
below the floor level and a minimum slope of ^/^ inch per 
foot back to the drain shall be maintained. The return bend 
used under the drainboard shall be a 45 degrees, a 90 degrees 
and a 45 degrees elbow in the order named. Pipe sizing shall 
be as elsewhere in this code. The island sink drain, upstream 
of the returned vent, shall serve no other fixtures. An 
accessible cleanout shall be installed in the vertical portion of 
the foot vent. For food service establishments, drainage shall 
be in accordance with 804. 1 . 

SPECIAL VENTING FOR ISLAND SINK 




(COPYRIGHT BY THE AMERICAN 
SOCIETY OF SANITARY ENGINEERING 
(ASSE) - FIG 4.6 OF ASSE'S RESIDENTIAL 
PLUMBING INSPECTOR'S MANUAL. 
USED WITH PERMISSION) 



SINK DRAIN TO 
HOUSE SEWER 



60 



Figure 907,A 
Louisiana State Plumbing Code, 2000 edition® 



908 FIXTURE VENTS 

LI Distance of Trap from Vent 
Each fixture trap shall have a protecting vent so located that 
the slope and the developed length in the fixture drain from 
the trap weir to the vent fitting are within the requirements set 
forth in Table 908.1, except as permitted by 913.1. (See 
Figure 908.1.) 



Table 908.1 
Distance of Fixture Trap from Vent 



Size of Fixture 


Size of Trap 


Fall 


Max. Distance 


Drain (in) 


(in) 


(in/ft) 


From Trap 


1% 


1I/4 


% 


3ft6in 


11/2 


1V4 


\ 


5ft 


. 11/2 


1I/2 


% 


5ft 


2 


1I/2 . 


\ 


6ft 


2 


2 


\ 


8ft 


3 


3 


\ 


10 ft 


4 


4 


\ 


12 ft 



1 in = 25.4 mm 
1 ft = 0.3048 m 



/ VENT OPENING 
/ SLOPE 1/4 OR 1/8 




-SANITARY TEE 
MEASURED ALONG 
CENTER OF WASTE 

ELEVATION 



TRAP 



, TRAP WEIR 

/ -■ nrr TOTAL FALL IN INCHES _ FALL PER 
OLurc - p^^_ LENGTH IN FEET FOOT 



DEVELOPED LENGTH 






SLOPE MEASUREMENT 



PLAN 



DEVELOPED LENGTH MEASUREMENT 



Figure 908.1 
Distance of Fixture Trap From Vent 



Louisiana State Plumbing Code, 2000 edition® 



61 



Tlie plumbing system shall be provided with a system of vent 
piping which will permit the admission or emission of air so 
th;it under normal and intended use the seal of any fixture 
trap shall not be subjected to a pressure differential of more 
th;m 1 inch of water (249 Pa). 



The vent pipe opening from a soil or waste pipe, except for 
w.iier closets and similar fixtures, shall not be below the top 
weir of the trap. 



A vent shall not be installed within two pipe diameters of the 
trap weir. 



VERTICAL DRAIN 
3" MINIMUM IF 
LOWER FIXTURE 
ISAWATERCLO. 



THE CASE OF A SMALL 
FIXTURE OVER A LARGER 
FIXTURE 




IN ANY CASE THE VERTICAL DRAIN MUST 
BE ONE PIPE SIZE LARGER THAN THE UPPER 
FIXTURE DRAIN BUT IN NO CASE SMAaER 
THAN THE LOWER FIXTURE DRAIN 



909.1 lodWidlual VeM 

An individual vent, installed vertically, may be used as a 
common vent for two fixture traps when both fixture drains 
connect with a vertical drain at the same level. 

909.2 Fixtures ora Same Floor 

A common vent may be used for two fixtures set on the same 
floor level but connecting at different levels in the stack, 
provided the vertical drain is one pipe size larger than the 
upper fixture drain but in no case smaller than the lower 
fixture drain, whichever is the larger, and that both drains 
conform to Table 908.1. 



WALL HUNG 
WATER CLOSET 



3" COUPLING 



THE CASE OF WATER 
CLOSET ONE ABOVE 
ANOTHER 



^ ^ FLOOR MOUNTED 
WATER CLOSET 




VERTICAL DRAIN 
4" MINIMUM FOR 
3" UPPER FIXTURE 
DRAIN 



3° CLOSET BEND 



WATER CLOSET FIXTURE DRAINS 
NEED NOT BE CONSIDERED LARGER 
THAN 3° DUE TO MAXIMUM SIZE 
OF TRAP-WAY 



Common Vent 
Figure 9-29B 

909.3 Distance 

909.3.1 Two fixtures set back-to-back, or side by side 
within the distance allowed between a trap and its vent, 
may be served with one continuous soil or waste vent- 
pipe, provided that each fixture wastes separately into an 
approved double fitting having inlet openings at the same 
level. (See 909.2.) 

909.3.2 When not more than two fixtures are set back-to- 
back or side-by-side, within the distance allowed between 
a trap and its vent, they may be connected to a common 
horizontal branch served by a common vertical vent 
located between the two fixtures, provided the branch is 
one pipe size larger than either of the fixture drains, except 
as permitted by 913.1. This vent shall not serve as a waste 
for any other fixture. 



• 



• 



62 



Louisiana State Plumbing Code, 2000 edition© 



WATER 
CLOSET 



-11' i 




FLOOR 
DRAIN 



BRANCH ONE PIPE 
SIZE LARGER THAN 
LARGEST FIXTURE 
DRAIN 



WATER 
CLOSET 



FLOOR 
DRAIN 




ALL MEASUREMENTS ALONG THE CENTER LINE 

Common Vent 
Figure 9-31 



909.3.3 For the purpose of this section, 3-inch (76 mm) or 
4-inch (102 mm) floor oi- shower drains, 4-dfu water 
closets or pedestal urinals shall be considered as having 3- 
inch (76 mm) drains. For more than two fixtures on a 
common horizontal branch, see 914.1. 

910 VENTS FOR FIXTURE TRAP BELOW TRAP DIP 

910.1 Hydraulic Gradient 

Fixture drains shall be vented within the hydraulic gradient 
between the trap outlet and vent connection, but in no case 
shall the unvented drain exceed the distance provided for in 
Table 908.1. 

910.2 Different Levels 

If any stack has fixtures entering at different levels, the 
fixtures other than the fixture entering at the highest level 
shall be vented, except as may be permitted in other sections 
of this chapter. 

911 WET VENTING 

911.1 Single Bathroom Groups 

A single bathroom group of fixtures may be installed with the 
drain from a back vented lavatory, kitchen sink or 
combination fixture serving as a wet vent for a bathtub or 
shower stall and for the water closet, provided that the wet 
vent is one pipe size larger than the upper fixture drain but in 
no case smaller than the lower fixture drain, whichever is the 
larger, and that both drains conform to Table 908.1. No 
urinals or washing machine drain shall discharge into any wet 
vent. 

911.2 Double Bath 

Bathroom groups back-to-back on top floor consisting of two 
bathtubs or shower stalls may be installed on the same 
horizontal branch with a common vent for the lavatories and 
with no back vent for the bathtubs or shower stalls and for the 
water closets, provided that the wet vent is one pipe size 
larger than the upper fixture drain but in no case smaller than 
the lower fixture drain, whichever is the larger, and that both 
Louisiana State Plumbing Code, 2000 edition® 



drains conform to Table 908.1. No urinals or washing | 
machine drain shall discharge into any wet vent. | 

911.3 Multistory Bathroom Groups 

On the lower floors of a multistory building, the waste pipe 
from one or two lavatories may be used as a wet vent for one 
or two bathtubs or showers provided that: 

1. The wet vent and its extension to the vent stack is not 
less than 2-inch (51 mm) diameter, and 

2. Each water closet below the top floor is individually 
back vented, and 

3. The vent stack is sized in accordance with Table 91 1.3. 

• 
Table 91 1.3 
Size of Vent Stack 

Number of Wet Vented Fixtures Diameter of Vent Stacks (In.) 



1 or 2 bathtubs or showers 
3 to 5 bathtubs or showers 
6 to 9 bathtubs or showers 
1 Oto 16 bathtubs or showers 



2 

2 1/2 

3 

4 



1 in = 25.4 mm 

912 STACK VENTING 

912.1 Fixture Groups 

A single bathroom group of fixtures, consisting of a water 
closet, basin, shower or tub and a kitchen sink (with disposal 
and dishwasher) located back-to-back to the bathroom, or two 
bathrooms back-to-back each consisting of one toilet, basin, 
shower or tub may be installed without individual fixture 
vents in a one story building or on the top floor of a building 
provided each fixture drain connects independently to the 
stack and that the tub and/or shower and water closet enter 
the stack at the same level and in accordance with the 
requirements in Table. 908.1. The wet vent portion of the 
Slack vent shall be one pipe size larger than the upper Fixture 
drain but in no case smaller than the lower fixture drain, 
whichever is the larger. 

63 



BATHTUB 



WATER CLOSET 




VENT STACK 



KIT SINK/DISPOSAL 



DISHWASHER 



LAVATORY 



LAV. 




STACK VENT 



SINK 



TUB 



SOIL STACK 



Stack Venting 



SHOWER STALL 
WATER CLOSET 

LAVATORY 



LAV. 




LAVATORY 



WATER CLOSET 



BATHTUB 



SHOWER 



SOIL STACK 
2° MINIMUM 




THIS POINT MUST 

BE NOT LESS THAN 

6° ABOVE FLOOD LEVEL 

OF THE HIGHEST FIXTURE 

IN THE GROUP 



1/a BEND 
UPRIGHT WYE 



MISCELLANEOUS FDCTURE 
DOWNSTREAM OF A 
WATER CLOSET MUST BE 
INDIVIDUALLY VENTED 



wq 



^ 



Stack Vent Lower FBooirs | 

Figure 9-39 | 

913 INDIVIDUAL FIXTURE REVENTING 

913.1 Horizonfai Branches 

913.1.1 One sink and one lavatory or one tub, or one 
shower, or three lavatories within 8 ft (2438 mm) 
developed length of a main vented line may be installed 
on a 2-inch horizontal waste branch, or two lavatories 
within 5 ft (1524 mm) developed length of a main vented 
line may be installed on a 1 1/2-inch horizontal waste 
branch, without reventing, provided the branch is full size 
throughout its length, and provided the wastes are 
connected with a pitch of not more than 1/4 inch per ft (21 
mm per meter), and provided that a 2-inch "P" trap shall 
be the minimum for tubs and showers. 

913.1.2 Waste openings in the horizontal branch shall not 

be less than 1 ^/^ inches for lavatories and 1 V2 inches for a f 
sink. One drinking fountain shall be considered as one 
lavatory. 

913.2 Where Required — ., 
All fixtures discharging downstream from a water closet shall 

be individually vented. Y 



rH 



INDIVIDUAL VENT 
REQUIRED 



TUB 



Stack Venting Doybi© Bathroom Groups 
Figure 9=38 

912.2 Lower Floors 

Lower floors may be vented as in 912.1 provided that a 
separate wye and upright one-eighth bend is installed in the 
stack and that the stack group is installed above the one- 
eighth bend and that a 2-inch (51 mm) vent is installed 6 
inches (152 mm) above the flood line of the top fixture. 

64 



INDIVIDUAL VEMT 
REQUIRED 



Required Individual Vents 

Figure 9-41 
Louisiana State Plumbing Code, 2000 edition® 



9>13.3 Limits of Fixture Units Above Bathtubs and Water 

Closets 

A total of three fixture units may be placed on a soil or waste 

stack on floors above the highest water closet or bathtub 

connection without the use of revents provided: 

1 . The soil or waste stack is not less than 3-inch diameter. 

2. The total fixture unit load on the stack does not exceed 
the limitations of Table 7 14.2. 

3. The largest fixture drain opening into the stack does not 
exceed the nominal diameter of the trap of the fixture to 
be connected except as permitted in 913.1. Such 
opening for multiple fixture connections shall be 
limited to use on one floor only. 

4. Each fixture above the highest tub or water closet is no 
farther from the stack than permitted in Table 908. 1 . 

5. All fixtures on lower floors are vented as otherwise 
required by this chapter. 

914 CIRCUIT AND LOOP VENTING 

9141 Battery Venting 

A branch soil or waste pipe of uniform diameter throughout 
its length, to which are connected in battery a number of 
fixtures not exceeding 50% of the fixture units allowed by 
column two of Table 714.2, may be vented by a circuit or 
loop vent system connected in front of the last upstream 
fixture drain. In addition, battery vented branches serving 
three or more fixtures shall be provided with a relief vent 
connected in front of the first fixture connection. When 
lavatories or similar fixtures having a fixture unit rating of 
four or less and a maximum 2-inch fixture drain discharge 
from above such branches, each vertical branch shall be 
provided with a continuous vent. Fixtures having fixture unit 
ratings greater than four shall not discharge into such branch 
from above unless all fixtures in the battery group are 
individually vented. Fixtures from an upper floor shall not 
discharge into a battery vented branch. Floor level fixtures, 
including but not limited to floor drains, discharging 
downstream from a water closet shall be individually vented. 

EXCEPTION: The relief vent may be omitted provided a 
stack vent or vent stack is located downstream of the first 
horizontal fixture connection. 



1.2 Veirat Connections 
When the circuit, loop, or relief vent connections are taken 
off the horizontal branch, the vent branch connection shall be 
taken off at a vertical angle or from the top of the horizontal 
branch. 

ExceptioBi: The vent branch connection may be taken off 
horizontally provided it is washed by not more than four 
fixture units, other than water closets, and the wet portion 
of the vent is not smaller than the horizontal battery 
branch. 



914.3.2 Back-to-back fixtures connected to a horizontal 
branch through a single vertical drain shall enter the drain 
through a sanitary cross, and a common vent for each two 
fixtures shall be provided. The common vent shall be 
installed as a continuation of the vertical drain. 

914.3.3 A fixture connected to a horizontal branch through 
a wye or combination wye and one-eighth bend installed 
in a horizontal position need not be individually vented. 

914.3.4 Back-to-back fixtures connected to a horizontal 
branch through a double wye or combination double wye 
and one-eighth bend installed in the horizontal position 
heed not be provided with a common vent at the 
connection to the horizontal branch, except for the last two 
fixtures upstream. The vent shall be installed in a vertical 
position through a side inlet fitting. 

914.3.5 In spite of sections 914.3.3 and 914.3.4, all floor 
level fixtures, including but not limited to floor drains, 
discharging downstream from a water closet shall be 
individually vented. 



DOUBLE WYE. DOUBLE COMB. OR- 
DOUBLE WYE. & 1/8 BEND 




SEE 
DETAIL 



WYE. COMBINATION 
WYE. AND 1/8 BEND 



>. 



DETAIL 



FIGURE 914.3 
FIXTURES BACK-TO-BACK IN BATTERY 

915 PNEUMATIC EJECTORS 

Relief vents from a pneumatic ejector shall be carried 
separately to the open air. 



• 



914.3 Fixtures Back-to-Back in Battery (See Figure 914.3) 
914.3.1 A fixture connected to a horizontal branch through 
a vertical drain and a sanitary tee shall be vented in 
accordance with 908.1. 



916 RELIEF VENTS— STACKS OF MORE 
THAN 10 BRANCH INTERVALS 

Soil and waste stacks in buildings having more than ten 
branch intervals shall be provided with a relief vent at each 
tenth interval installed, beginning with the top floor. The size 



Louisiana State Plumbing Code, 2000 edition© 



65 



of the relief vent shall be equal to the size of the vent stack to 
which it connects. The lower end of each relief vent shall 
connect to the soil or waste stack through a wye below the 
horizontal branch serving the floor, and the upper end shall 
connect to the vent stack through a wye not less than 3 ft (914 
mm) above the floor. 

917 OFFSET VENTS 

917.1 General 

In buildings five or more stories in height, offsets in vertical 
drainage piping having less than a 45° (0.785 rad) slope shall 
be vented in accordance with 917.2 or 917.3, except as 
otherwise permitted by 715. 



Such offsets may be vented as two separate soil or waste 
stacks, namely the stack section below the offset and the 
stack section above the offset. 

917.3 Offset ReMefs 

Such offsets may be vented by installing a relief vent as a 
vertical continuation of the lower section of the stack or as a 
side vent connected to the lower section between the offset and 
next lower fixture or horizontal branch. The upper section of 
the offset shall be provided with a yoke vent. The diameter of 
the vents shall be not less than the diameter of the main vent, 
or of the soil and waste stack, whichever is the smaller. 

918 MAIN VENTS TO CONNECT AT BASE 

All main vents or vent stacks shall connect full size at their 
base to the building drain within ten pipe diameters of the 
main soil or waste pipe or to the main soil or waste pipe, at or 
below the lowest fixture branch. All vent pipes shall extend 
undiminished in size to the vent terminal, or shall be 
reconnected with the main soil or waste vent. 

919 VENT HEADERS 

Stack vents and vent stacks may be connected into a common 
vent header at the top of the stacks and then terminate as 
required by this code. This header shall be sized in 
accordance with the requirements of Table 920.2, the number 
of units being the sum of all units on all stacks connected 
thereto, and the developed length being the longest vent 
length from the intersection at the base of the most distant 
stack to the vent terminal as a direct extension of one stack. 

920 SIZE AND LENGTH OF VENTS 

920.1 Lengllh of Ventt Stacks 

The length of the vent stack or main vent shall be its 
developed length from the lowest connection of the vent 
system with the soil stack, waste stack, or building drain to 
the vent stack terminal, if it terminates separately, or to the 
connection of the vent stack with the stack vent, plus the 
developed length of the stack-vent from the connection to the 
terminal, if the two vents are connected together with a single 
extension. 



920.2 Size of Stack- Vents, Vent Stacks, Relief Vents, 
Individual Vents or Branch Vents 

The diameter of a stack-vent, vent stack, relief vent, individual 
vent or branch vent shall not be less than one-half of the 
diameter of the drain served, but in no case less than 1 1/4 
inches, and shall be determined from its length and the total of 
fixture units connected thereto, as provided in Table 920.2. All 
water closets vents shall be a minimum of 2 inches in diameter. 
This shall not be interpreted to allow the alteration or 
elimination of the need for at least one 3 inch vent stack or 
stack vent on the building drain as required under 904.3.1. 

920.3 Size of Battery Vents 

The diameter of a battery vent shall be not less than one-half 
the pipe size of the horizontal waste line it is venting, but in 
no case less than 1 V2 inches, and shall be determined from its 
length and the total of fixture units connected thereto, as 
provided in Table 920.3. The diameter and horizontal length 
of a battery vent shall in no case be less than permitted in 
Table 920.3. (See 914.) 



66 



Louisiana State Plumbing Code. 2000 edition® 



Table 920.2 

Maximum Length of Vents 

(Other than Battery Vents) (ft) 

(See Table 920.3 for Battery Venting) 



size of Soil or 


Fixture Units 








Diameter of Vent 


Required (in) 










Waste Stack 


Connected 




















(in) 




11/4 


1 1/2 


2 


21/2 


3 


4 


5 


6 


8 


1 1M 


2 


30 


















1 1/2 


8 


50 


150 
















11/2 


10 , 


30 


100 
















2 


12 


30 


75 


200 














2 


20 1 


26 


50 


150 














21/2 


42 


_ 


30 


100 


300 












3 


10 


— . 


30 


100 


200 


.600 










3 


30 


■ — 


— 


60 


200 


500 










3 


60 


— 


— 


50 


80 


400 










4 


100 


- 


- 


35 


100 


260 


1000 








4 


200 








30 


90 


250 


900 








4 


500 


— . 


— 


20 


70 


180 


700 








5 


200 


— 


_ - 


— 


35 


80 


350 


1000 






5 


500 


— 


— 


— 


30 


70 


300 


900 






5 


1100 


- 


— 


- 


20 


50 


200 


700 






6 


350 


_ 


_ 


_ 


25 


50 


200 


400 


1300 




6 


620 


— ■ 


— 


. — 


15 


30 


125 


300 


1100 




6 


960 


— 


_ 


— 


_ 


24 


100 


250 


1000 




6 


1900 


— 


' — 


— 


— 


20 


70 


200 


700 . 




8 


600 


- 


— 


- 


- 


- 


50 


150 


500 


1300 


; 6 


1400 








_ 





_ 


40 


100 


400 


1200 


8 


2200 


— 


■ — 


— 


— 


■■'■—. 


30 


80 


350 


1100 


8 


3600 


— . 


— 


_ 


■ — 


— 


25 


60 


250 


800 


10 


1000 


— 


— 


_ 


— ■ 


— 


— . 


75 


125 


1000 


10 


2500 


- ■ 


- 


- 


- 


■ . - ■ - 


— 


50 


100 


SCO 


10 


3800 


■ 





_ 











30 


80 


350 


10 


5600 


— 


■ — 


- 


— ■ 


— 


— 


25 


60 


250 


1 in = 25.4 mm 






















1 ft = 0.3048 m 























• 



Soil or 
waste pipe 
diam. (In) 



Maximum no. 
Fixture units 



Table 920.3 
Battery Vent Sizina Table 
Maximum Horizontal Length (ft) 



Diameter of circuit or loop vent (in) 



1 1/2 



21/2 



2 


3 


21/2 


6 


3 


10 


4 


80 


5 


180 


1 in = 25.4 mm 




1 ft = 0.3048 m 





15 


40 








10 


30 - 








— 


20 


40 


10O 




,— 


7 


20 


52 


200 


— 


— 


— 


16 


70 



200 



924 APPENDIX REFERENCES 

Additional provisions for vents are contained in Appendix G - 
Medical Facilities Plumbing Systems and Appendix J - 
Illustrations. These provisions are applicable only where 
specifically included in the body of the code sections or in the 
adopting ordinance. 



Louisiana State Plumbing Code, 2000 edition® 



67 



• 



68 Louisiana State Plumbing Code, 2000 edition® 



CHAPTER 10 

TRAPS 



1001 GENERAL 

lOOLl Scope , 

The provisions of this chapter shall govern the materials and 

installation of traps. 

1001.2 Trap Seal 

Each fixture trap shall have a water seal of not less than 2 
inches (51 mm) and not more than 4 inches (102 mm), except 
where a deeper seal is required by the plumbing official for 
special conditions. 



[.3 Trap Level and Protection 
Traps shall be set level with respect to their water seals. 



1.4 Traps Underground 

Underground traps, except "P" traps into which floor drains 
with removable strainers discharge, shall be provided with 
accessible and removable cleanouts. 

5 Prohibited Traps 

5.1 A trap which depends for its seal upon the action 
of movable parts shall not be used. 

1001.5.2 "S" traps shall be prohibited, except for water 
closets, clinic sinks, urinals and similar fixtures with 
integral traps. 



.5.3 Bell traps shall be prohibited. 

.5.4 Crown-vented traps shall be prohibited. 



1001.5,5 Baffled or partition traps other than stainless 
steel, glass, plastic or similar corrosion resistant materials 
shall be prohibited. 



.5.6 Tubular metallic traps of less than 20 gage 
[0.0320 inch (0.813 mm)] thickness shall be prohibited. 



.5.7 Running traps shall be prohibited. 



1.6 Double Trapping 
A fixture shall not be double trapped. 

EXCEPTION: Fixtures in mobile/manufactured homes 
and travel trailers are allowed to be double trapped when a 
trailer trap is required to be placed in the building 
sewer/sewer lateral as per 1003.5, B108.10, B112, 
C107.5.1 orC112. 

1 001 .7 Unions (Threaded) 

Unions may be used in the trap seal and on the inlet side of 

the trap. Unions shall have metal-to-metal seats. 



1001.8 Number of Traps Per Fixture 

1001.8.1 Plumbing fixtures, excepting those having 
integral traps, shall be separately trapped by a water seal 
trap, placed as close to the fixture outlet as possible. 

1001.8.2 A combination plumbing fixture may be installed 
on one trap, if one compartment is not more than 6 inches 
(152 mm) deeper than the other and the waste outlets are 
not more than 30 inches (762 mm) apart. 

1001.8.3 One trap may be installed for a set of not more 
than three single-compartment sinks or laundry trays or 
three lavatories immediately adjacent to each other in the 
same room, if the waste outlets are not more than 30 
inches (762 mm) apart and the trap is centrally located 
when three compartments are installed. 

1001.9 Distance of Trap to Fixture 

1001.9.1 The vertical distance from the fixture outlet to 
the trap weir, or from the outlet of an integrally trapped 
water closet or similar fixture to the horizontal piping 
connecting the fixture to its vent, shall not exceed 24 
inches (610 mm), except for washing machine (laundry) 
drains where such distance shall not exceed 48 inches 
(1219 mm). 

1001.9.2 The distance from a vertical standpipe inlet for a 
washing machine drain to the trap weir shall be a 
minimum of 30 inches (762 mm) with the vertical 
standpipe inlet a minimum of 34 inches (864 mm) above 
finished floor or in accordance with the manufacturer's 
recommendation. 

1002 DEFINITIONS 

This chapter contains no unique definitions. For general 
definitions, see Chapter 2. 

1003 TYPE AND SIZE OF TRAPS AND 
FIXTURE DRAINS 

1003.1 Trap Size 

The size (nominal diameter) of a trap for a given fixture shall 
be sufficient to drain the fixture rapidly but in no case less 
than given in Table 713.1. 

1003.2 Relation to Fixture Drains 

A trap shall not be larger than the fixture drain to which it is 
connected. 

1003.3 Type of Traps 

1003.3.1 Fixture traps shall be self-cleaning, other than 
integral traps, without partitions or movable parts, except 
as specifically approved in other sections of this code. 



Louisiana State Plumbing Code, 2000 edition® 



69 



Oo2 Slip joints may be used on both sides of the trap 
and in the trap seal. 



.3.3 A trap which is integral with the fixture shall 
have a uniform interior and a smooth waterway. 



5.4.1 Drum traps shall be limited to special fixtures 
designed for drum traps and are subject to approval by the 
plumbing official. They shall be not less than 4-inch 
diameter and shall have a water seal of not less than 2 
inches (51 mm). 



.4.2 The trap screw shall be one size less than the trap 
diameter. 



1003.5 Trailer Traps 

Mobile/manufactured homes and travel trailers shall be 
provided with a trailer trap in the building sewer/sewer lateral 
immediately downstream of the mobile/manufactured home 
or travel trailer drain outlet connection. The trailer trap shall 
be individually vented and the vent shall be located 
downstream of the trap at a distance in accord with Table 
908.1. Running traps are prohibited for this installation. (See 
diagram under B 1 12 or C 112.) 

EXCEPTION: The trailer trap for a mobile/manufactured 
home or travel trailer is not required to be provided with 
an individual vent if the mobile/manufactured home or 
travel trailer is connected to a park drainage system 
constructed in accord with B108.7 and the building 
sewer/sewer lateral is no longer than 30 feet (9144 mm) 
from the main park drainage sewer. (See BIOS. 10 and 
C 107.5.1) 



TRAILER TRAP AND VENT 



APPROVED MATERIALS FOR TRAP AND VENT 
(1) CAST IRON PIPE AND FITTiNGS. 
(2)ABS OR PVC PLASTIC PIPE AND FITTINGS SCH. 40 
(NOTE: DO NOT MIX ABS AND PVC PIPE 
AND/OR FrmNGS.) 



r— 10° ABOVE TOP 

i- OF TRAILER 



4°«4°SUPPOm"OR 
STRAP TO TRAILER 



WYE AND 
1/8 BEND OR 

4- LONG SWEEP 



4° CO 



4° WYE AND 
1/8 BEND 



INSTALL 4= CLEANOUT 
FOR TRAILER CONNECTION 




APPROVED SEWER PIPES: 

(1) CAST IRON SBNER PIPE 

(2) VITRIFIED CLAY SEWER PIPE 

(3) APPROVED PLASTIC PIPE AND FITTINGS (MIN. 
SDR 35 OR HEAVIER) 

(NOTE: FROM A POINT AT LEAST 3 FEET OUTSIDE 
THE EDGE OF THE TRAILER TO SEWAGE 
SYSTEM.) 



NOTE: D-2729 NOT APPROVED FOR ANY PART OF SYSTEM 



4" PIPE TO SANITARY SEWER OR TO SEPTIC SYSTEM 



4°P-TRAPAND 
4° CO. 



70 



Louisiana State Plumbing Code, 2000 edition® 



1004 INTERCEPTORS AND SEPARATORS 

1004.1 When required 

Interceptors or separators shall be provided for the proper 
handling of liquid wastes containing grease, oil, flammable 
waste, sand, solids or other ingredients harmful to the 
building drainage system, the public or private sewer or 
sewage treatment plant or processes except when, in the 
opinion of the Plumbing Official, they are not necessary. 

1004.2 Size and Type 

The size, type and location of each interceptor or separator 
shall be approved by the plumbing official. 

1004.3 Type of Waste 

No wastes other than those requiring treatment or separation 
shall be discharged into any interceptor or separator except 
where otherwise specifically permitted. 

1004.4 Grease Traps/Grease Interceptors 

An approved type grease trap/grease interceptor, complying 
with the provisions of this section and Appendix M of this 
code, shall be installed in the waste line leading from sinks, 
drains and other fixtures or equipment in establishments such 
as restaurants; cafes; lunch counters; cafeterias; bars and 
clubs; hotels; hospitals; sanitariums; factory, school or day 
care center kitchens; markets; or other establishments where 
grease may be introduced into the drainage or sewage system 
in quantities that can affect line stoppage or hinder sewage 
treatment or private sewage disposal, except when, in the 
opinion of the Plumbing Official, they are not necessary. 

1004.5 Oil Separators 

An oil separator shall be installed in the drainage system 
section of the system where, in the opinion of the plumbing 
official, a hazard exists or where oils or other flammables can 
be introduced or admitted into the drainage system by 
accident or otherwise. 

1004.6 Sand Interceptors 

Sand and similar interceptors for heavy solids shall have a 
water seal of not less than 2 inches (5 1 mm). 

1004.7 Venting Interceptors 

Interceptors shall be so designed that they will not become air 
bound if closed covers are used. Each interceptor shall be 
properly vented. 

1004.8 Accessibility Of Interceptors 

Each interceptor shall be so installed as to provide ready 
accessibility to the cover and means for servicing and 
maintaining the interceptor in working and operating 
condition. The use of ladders or the removal of bulky 
equipment in order to service interceptors shall constitute a 
violation of accessibility. 

1004.9 Water Connection 

If permitted by the Plumbing Official, water connection for 
cooling or operating an interceptor shall be such that 
backflow cannot occur. 



1004.10 Special Occupancy Provisions 

1004.10.1 Laundries. 

1004.10.1.1 Interceptors. Commercial laundries shall 
be equipped with an interceptor having a removable 
wire basket or similar device that will prevent strings, 
rags, buttons, or other materials detrimental to the 
public sewerage system from passing into the drainage 
system. 

1004.10.1.2 Intercepting Device. A basket or other 
device shall prevent passage into the drainage system 
of solids 1/2 inch (12.7 mm) or larger in size. The 
basket or device shall be removable for cleaning 
purposes. 

1004.10.2 Bottling Plants. Bottling plants shall discharge 
their process wastes into an interceptor which will provide 
for the separation of bro<cen glass or other solids, before 
discharging liquid wastes into the drainage system. 

1004.10.3 Slaughter House Drains. Slaughtering room 
drains shall be equipped with separators which shall 
prevent the discharge into the drainage system of feathers, 
entrails and other materials likely to clog the drainage 
system. 

1004.11 Food Service 

1004.11.1 Commercial Food Grinders 

Where commercial food-waste grinders are installed, the 
waste from those units shall discharge through a grease 
trap. 

1004.11.2 Wash Racks 

Every wash rack and/or floor or slab used for cleaning 
shall be adequately protected against storm or surface 
water and shall drain or discharge into an interceptor of an 
approved design for this use. 

1004.12 Maintenance 

1004.12.1 Grease Traps and Grease Interceptors. 

Grease traps and grease interceptors shall be maintained in 
efficient operating condition by periodic removal of the 
accumulated grease. No such collected grease shall be 
introduced into any drainage piping, or public or private 
sewer. 

1004.12.2 Interceptors and Separators in General. 

Interceptors and separators of all types shall be maintained 
in efficient operating condition by periodic removal of 
accumulated material for which the interceptor or 
separator has been designed. No such collected material 
shall be introduced into any drainage piping, or public or 
private sewer. 

1004.13 Special Type Separators 

The plumbing official may require the submittal of drawings 
and other pertinent information. 



Louisiana State Plumbing Code. 2000 edition® 



71 



72 Louisiana State Plumbing Code, 2000 edition® 



CHAPTER 11 

STORM DRAINAGE 



• 



• 



1101 GENERAL 

1101.1 Scope 

The provisions of this chapter shall govern the materials, 
design, construction, and instaljatibn of storm drainage. 

1101.2 Drainage Required 

Roofs, paved areas, yards, courts and courtyards shall be 
drained into a storm sewer system. 

110L3 Prohibited Drainage 

Storm water shall not be drained' into sewers intended for 
sewage only. 

1101.4 Expansion Joints 

Expansion joints or sleeves shall be provided where 
warranted by temperature variations or physical conditions. 

1101.5 Subsoil Drains 

Where subsoil drains are placed under the cellar or basement 
floor or are used to surround the outer walls of a building, 
they shall be made of open-jointed or horizontally split or 
perforated clay tile, asbestos cement pipe, or plastic pipe 
meeting the requirements of Table 703, not less than 4-inch 
diameter. When the building is subject to backwater, the 
subsoil drain shall be protected by an accessibly located 
backwater valve. Subsoil drains may discharge into a 
properly trapped area drain or sump. Such sumps do not 
require vents. 

1101.6 Building Subdrains 

Building subdrains located below the public sewer level shall 
discharge into a sump or receiving tank, the contents of 
which shall be automatically lifted and discharged into the 
drainage system as required for building sumps. 

1101.7 Pumping System 

Pumping systems installed to remove contents of collecting 
sumps shall include the sump pump, pit, and discharge piping 
as defined below. 

1. Sump Pump: An automatic water pump for the removal 
of drainage from a sump, pit,, or low point in a 
residential, commercial, or industrial property shall be 
of a capacity and head appropriate to anticipated use 
requirements. 

2. Sump Pit: Size shall be not less than 18-inch (457 mm) 
diameter and may be constructed of tile, steel, plastic, 
cast iron, concrete, or other material accepted by the 
plumbing official, topped by a removable cover 
adequate to support anticipated loads in area of use. 
The pump floor shall provide permanent support for the 
pump. 

3. Electrical service outlets, when required, shall meet the 
requirements of NFiPA 70 or local codes. 



4. Discharge piping shall meet the requirements of 
1103.1, 1103.2, 1103.3 or 1103.4 and shall include a 
gate valve and a full flow check valve. Size and fittings 
shall be the same size as, or larger than, pump 
discharge tapping. 

1101.8 Backwater Devices 

The installation of backwater devices as protection for 
fixtures subject to backflow shall be in accordance with 
requirements of this code. 

1101.9 Tests 

The interior leaders and downspouts system shall be tested in 
accordance with 31 1.5. 

1102 DEFINITIONS 

1102.1 The following definition has been deleted without | 
substitution: COMBINED BUILDING SEWER. f 

1102.2 The following definitions have been moved to = 
Chapter 2: AREA DRAIN, BUILDING STORM DRAIN, § 
CONDUCTOR, LEADER, SANITARY SEWER. | 

1103 MATERIALS 

1103.1 Inside Conductors Including Above Ground 
Storm Drains 

Conductors placed within buildings or run in vent or pipe 
shafts shall be aluminum, cast iron, galvanized or black steel, 
galvanized ferrous alloys, brass, copper tubing of a weight "^ 
not less than that of copper drainage tube Type DWV, copper 
pipe or schedule 40 plastic pipe. 

1103.2 Building Storm Drains 

All building storm drains shall be of materials required for | 
building drains in Sections 703.3 and 703.4. 

1103.3 Underground Building Storm Drains i 

Underground building storm drains, inside the building | 

perimeter, shall be of cast iron soil pipe, ferrous-alloy piping, = 

copper tube Type DWV, or Schedule 40 plastic piping. | 

1103.4 Building Storm Sewers 

The building storm sewer shall be of cast iron soil pipe, 
vitrified-clay pipe, concrete pipe, or plastic pipe meeting the ^ 
requirements of Table 703. 

1104 SPECIFICATIONS 

Pipe, tubing, and fittings for storm drainage systems shall 
conform to the standards listed in Table 703. a 



Louisiana State Plumbing Code, 2000 edition® 



73 



1106.: 

Rain water conductors installed along alleyways, driveways, 
or other locations where they may be exposed to damage 
shall be protected. 

I 1106.3 Separaftioo of Storm Drainage from Sanitary 



The sanitary sewer and storm drainage systems of a building 
shall be entirely separate. 

1106.4 Floor DraDHis 

Floor drains shall not be connected to a storm drain. 

1107 ROOF DRAINS 



.1 

Roof drains shall be of an approved corrosion resistant 
material with adequate strainer area and shall comply with 
the applicable standards in Table 303. 



Sftranmiers 

When roof drains are provided they shall have strainers 
extending not less than 4 inches (102 mm) above the surface 
of the roof immediately adjacent to the roof drain. Strainers 
shall have an available inlet area, above roof level, of not less 
than one and one-half times the area of the conductor or 
leader to which the drain is connected. 



Roof drain strainers for use on sun decks, parking decks, and 
similar areas, normally serviced and maintained, may be of 
the flat surface type, level with the deck and shall have an 
available inlet area not less than two times the area of the 
conductor or leader to which the drain is connected. 

1107.4 Roof Drain Flashings 

The connection between roofs and roof drains which pass 
through the roof and into the interior of the building shall be 
made watertight by the use of proper flashing material. 

1108 SIZE OF LEADERS AND STORM DRAINS 



Note: 

1 . The equivalent diameter of square or rectangular leader may be 
taken as the diameter of that circle which may be inscribed within the 
cross-sectional area of the leader. See 1 108.2.2. 

1 108.2 Building Storm Drains 

1108.2.1 The size of the building storm drain or any of its 
horizontal branches having a slope of 1/2 inch or less per 
foot (4 1.6 mm/m) shall be based upon the maximum 
projected roof area to be handled according to Table 
1108.2. 

Table 1108.2 
Size of Horizontal Storm Drains 



Diameter of 

Drain 


Maximum Projected Roof Area for Drains 
of Various Slopes (sq ft) 


(In) 


1/8 In Slope 


1/4 Bn Slope 


1/2 In Slope 


3 
4 
5 
6 

8 
10 
12 
15 


822 
1,880 
3,340 
5.350 

11,500 
20.700 
33.300 
59.500 




1.160 
2,650 
4.720 
7,550 

16.300 
29.200 
47,000 
84.000 


1,644 
3.760 
6.680 
10.700 

23,000 
41,400 
66,600 
119.000 


1 in = 25.4 mm 
1 ft2 = 0.0929 m2 











11082.2 Tables 1108.1 and 1108.2 are based upon a rate 
of rainfall of 4 inches (102 mm) per hour. If in any state, 
city or other political subdivision, the maximum rate of 
rainfall is more or less than 4 inches (102 mm) per hour, 
then the figures for roof area shall be adjusted 
proportionately by dividing the figure by four and 
multiplying by the maximum rate of rainfall in inches 
(mm) per hour. See 1 108.4. 

1108.3 Vertical Walls 

In sizing roof drains and storm drainage piping, one-half of 
the area of any vertical wall which diverts rain water to the 
roof shall be added to the projected roof area for inclusion in 
calculating the required size of vertical leaders and horizontal 
storm drainage piping. 



Vertical leaders shall be sized for the maximum projected 
roof area, according to Table 1108.1. 





Table 1108.1 




Size of Ven 

r Conductor^ 


tical Leaders 


Size of Leader g 


Maximum Projected Roof Area 


(in) 




(sqft) 


2 




720 


21/2 




1300 


3 




2200 


4 




4600 


5 




8650 


6 




13,500 


8 




29.000 



1 in = 25.4 mm, 1 ft2 = 0.0929 rv? 
74 



1108.4 Maximum Rates of Rainfall 

Primary roof drain systems shall be designed using Tables 
1108.1 and 1108.2 adjusted in accordance with 1108.2.2 for 
the local rainfall for a 60 minute duration and a 100 year 
return period in Figure 1108.4. The plumbing official may 
approve local weather data on the maximum rate of rainfall 
when available. 

1108.5 Parapet Wall Scupper Location 

See the Standard Building Code for parapet wall roof 
drainage scupper and overflow scupper location 
requirements. 



Louisiana State Plumbing Code, 2000 edition© 




100- YEAR 60-MINUTE PRECIPITATION 
(INCHES) 



FROM NOAA/NWS HYDRO - 35 



" KEY WEST. R.ORIDA VALUE 
REPRESENTATIVE FOR FLORIDA KEYS 




BASED ON 100- YEAR 15-MINUTE PRECIPITATION 
(INCHES) 



FROM NOAA/NWS HYDRO - 35 



• KEY WEST. FLORIDA VALUE 
REPRESENTATIVE FOR FLORIDA KEYS 



FIGURE 1108.4 
RAINFALL RATES FOR PRIMARY ROOF DRAINS (IN/HR) 

1109 SECONDARY (EMERGENCY) ROOF DRAINS 

1109ol Secondary Drainage Required 

Secondary (emergency) roof drains or scuppers shall be 
provided where the roof perimeter construction extends 
above the roof in such a manner that wateir would be 
entrapped should the primary drains allow buildup for any 
reason. 

1109.2 Separate Systems Required 

Secondary roof drain systems shall have piping and point of 
discharge separate from the primary system. Discharge shall 
be above grade in a location which would normally be 
observed by the building occupants or maintenance 
personnel. 

1109.3 Maximum Rainfall Rate for Secondary Drains 

Secondary (emergency) roof drain 'systems or scuppers shall 
be sized based on the flow rate caused by the 100 year 15 
minute precipitation as indicated in Figure 1109.3. The flow 
through the primary system shall not be considered when 
sizing the secondary roof drain system. 

1111 VALUES FOR CONTINUOUS FLOW 



FIGURE 1109.3 

RAINFALL RATES FOR 

SECONDARY ROOF DRAINS (IN/HR) 



1113 APPENDIX REFERENCES 



Additional provisions for storm drainage are found in 
Appendix A - Roof Drain Sizing Method. These provisions 
are applicable only where specifically included in the body of = 
the code sections or in the adopting ordinance. = 



Where there is a continuous or semicontinuous discharge into 
the building storm drain or building storm sewer, as from a 
pump, ejector, air conditioning plant, or similar device, each 
gallon per minute of such discharge shall be computed as 
being equivalent to 24 sq ft (2.23 m^) of roof area, based 
upon a 4-inch (102 mm) rainfall. 

Louisiana State Plumbing Code, 2000 edition© 



75 



76 Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 12 

ALTERNATE DESIGNED PLUMBING SYSTEMS 



1201 GENERAL 

Approval of alternate designed plumbing systems will be 
considered on an individual basis. 

1202 REQUIREMENTS FOR APPROVAL 

1202.1 Plans and Specifications 

Plans and specifications for any proposed alternate designed 
plumbing system shall be submitted to the State Health 
Officer for review and approval prior to construction. Such 
plans and specifications shall be appropriately sealed and 
signed by a Louisiana Registered Professional Engineer 
registered in either civil or mechanical engineering. 

1202.2 Responsibility of Professional Engineer 

The Professional Engineer referenced in 1202.1 shall be 
responsible for: 

1 . certifying the system design, 

2. inspecting the system during installation, 

3. certifying that the installed system is in compliance 
with the design specifications, 

4. supervising any test(s) perforrned on the system, and 

5. certifying the results of any required testing. 

1202.3 Owner's Notice 

Any permits issued for an alternate designed plumbing 
system shall be issued only after the owner of the building 
has assured the State Health Officer in writing that he is 
aware of the third party notification requirements of 1204. In 
addition, any permits issued for work requiring a 
performance test shall be issued only after the owner of the 
building has assured the State Health Officer in writing that 
he is also aware of the testing requirements of 1203. 

1203 TESTS 

1203.1 Genera] Testing Requirements 
The State Health Officer and/or the local Plumbing Official 
may also require tests to be conducted prior to occupancy to 
assure that the proposed design is satisfactory and complies 
with the intent of this code. Such tests shall be made in 
accordance with approved standards, but in the absence of 
such standards, the State Health Officer and/or the local 
Plumbing Official shall specify the test procedure(s). In 
general, such tests shall indicate that all fixtures properly 
discharge when flushed simultaneously with not less than 1 
inch (25.4mm) of water seal left in the trap after testing and 
that there is no evidence of sewer gas passing through the 
trap seal. 



L2 Roughing-En. The roughing-in test shall be as 
provided for in other chapters of thiS|Code. 



1203 J Tests and Inspection of the Single Stack Discharge 
and Ventilating Pipe System 

1203.3.1 Performance Test Required. In any building in 
which fixtures or appliances, other than those specifically 
provided for in Table LI 04. 5 A, are to be installed or in 
existing buildings in which the single stack system exists 
and additional fixtures are to be added, the plumbing 
official shall require and supervise a performance test as 
hiereafter provided. 

1203.3.2 Application and Restrictions. When required 
in new construction, the system shall successfully pass the 
test before the building is permitted to be occupied. In 
existing buildings where piping is added for additional 
fixtures or appliances, such new piping shall not be placed 
in service until the performance test is approved. Should 
the system fail to pass the test, the new construction shall 
be modified as the plumbing official may direct, or the 
system shall be reconstructed to meet the requirements of 
other chapters of this code, or the added fixtures and 
appliances shall be removed and all waste and vent pipes 
permanently closed so as to form no dead ends and all 
wall and other openings shall be put back in their original 
or finished condition. 

EXCEPTION: Central washing facilities connected 
separately to the building drain or sewer in an 
installation that is otherwise constructed in accordance 
with other chapters of this code are exempt from the 
performance test. 

1203.3.3 Performance Test. Every trap shall retain not 
less than 1 inch (25.4 mm) of seal when subjected to the 
appropriate discharge tests given below. These tests are 
designed to simulate the probable worst conditions in 
practice. Each test should be repeated three times, the trap 
being recharged before each test, and the maximum loss of 
seal in any one test, measured by a dip stick, shall be taken 
as the significant result. The number of fixtures to be 
discharged simultaneously when investigating the effect of 
the flow of water down the stack depends on the number 
of fixtures and on the frequency with which they are used. 
The number of fixtures to be discharged simultaneously is 
given in Table L104.1 1. 

1203.3.4 Test for Self-Siphonage. To test for the effect 
of self-siphonage, the waste fixture shall be filled to 
overflowitig level and discharged in the normal way. The 
seal remaining in the trap shall be measured when the 
discharge has finished. This test is most important for 
wash basins, but it is not applicable for water closets 
which shall be flushed in the normal manner. 



Louisiana State Plumbing Code, 2000 edition© 



77 



i: 



After installation of any alternate designed plumbing system, 
the owner shall notify third parties of its existence by having 
a document recorded in the Clerk of Court's conveyance 
records in the parish in which such alternate designed 
plumbing system has been installed. The document so 
recorded shall reference a prior conveyence record 
(COB/folio) of the parcel of ground upon which the alternate 
designed plumbing system is located (e.g., the conveyence 
recording a previous Act of Sale of the parcel of ground). The 
document will state that the plumbing of the building located 
on this particular parcel of ground contains an "alternate 
designed plumbing system" which cannot be modified in any 
manner by future owners/lessees without first obtaining an 
approval of such proposed modifications from the State 
Health Officer in accord with the requirements of Chapter 12 
(Alternate Designed Plumbing Systems) of the Louisiana 
State Plumbing Code. Proof of recordation shall be provided 
to the State Health Officer and the local Plumbing Official 
prior to issuance of a building occupancy permit. 



78 ■ Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 113 

SPECIAL PIPING AND STORAGE SYSTEMS 



1301 hospital! SYSTEMS 

Provisions for hospital pipingiand storage systems are 
contained in Appendix G - Medical Facilities Plumbing 
Systems. Appendix G is a requirerrient of this code. 

1302 MEDICAL GAS AND MEDICAL 
VACUUM SYSTEMS 

All medical gas and medical vacuum systems shall be 
installed in compliance with all requirements of NFiPA 99. 



Louisiana State Plumbing Code, 2000 edition® 79 



• 



80 Louisiana State Plumbing Code, 2000 edition© 



CHAPTER 14 

REFERENCE STANDARDS 



1401 SCOPE 

This chapter contains the designations, names and edition of 
standards referenced in this code listed alpha-numerically and 
the section numbers where they are referenced. 

1402 REFERENCED STANDARDS 

Products manufactured to those standards which are followed 
by the word "Listed" are required to be listed regardless of 
the standards' requirements for listing. 

Standard Designation Section 

ANSI A40.5- 1 943, Threaded Cast Iron Pipe for Table 603 

Drainage, Vent and Waste Services 

ANSI A 1 12.6.1 M- 1997, Supports for Off-the-Floor Table 303 

Plumbing Fixtures for Public Use 

ANSI A112:26.1M-1984, Water Hammer Arresters 607.8.2 

ANSI An7.1-92. Accessible and , 409.8.1 

Usable Buildings and Facilities 

ANSI Al 19.2-1996. Parts I & II, BlOl.ClOl, 

Recreational Vehicles CI 02 

ANSI B 1 6.5- 1 996 (R 1998), Pipe Flanges and Table 603 

Flanged Fittings 

ANSI B16.32-1992. Cast Copper Alloy Solder Table 703 

Joint Fittings for Sovent Drainage Systems 

ANSI 81 6.34-1 996 (R 1998), Valves-Flanged Table 603 

Threaded, and Welding End 

ANSI B 1 6.43- 1 982, Wrought Copper and Table 703 

Copper Alloy Solder Joint Fittings for Sovent 

Drainage Systems 

ANSI B3 1.1-55. Code for Pressure Piping 612.4 

ANSI Z4.I-1986(R1995), Sanitation in Places Table 407 

of Employment.Minimum Requirement for Note 13 

ANSI Z2 1.1 0.1 -1998, Gas Water Heaters, 503.2 

Volume 1, Storage Water Heaters with Input 

Ratings of 75,000 Btu per Hour or Less 

ANSI Z2 1.1 0.3- 1 998, Gas Water Heaters 503.2 

Volume III, Storage, with Input Ratings 

Above 75,000 Btu per Hour, circulating and 

instantaneous 
ANSI Z21.22-1986(R1990), Relief Valves and 501.8.1, 

Automatic Gas Shutoff Devices for 507. 1 , 507.7 

Hot Water Supply Systems 

ANSI Z124. 1-1995. Plastic Bathtub Units Table 405 

ANSI Z124.2-1995, Plastic Shower Receptors Table 409.8 

and Shower Stalls 

ANSI Z 1 24.3- 1 995, Plastic Lavatories Table 405 

ANSI Z124.4-1996, Plastic Water Closet Table 405 

Bowls and Tanks 

ANSI Z124.5-1997, Standard for Plastic Table 303 

Toilet (Water Closet) Seats 

ANSI Z 124.6- 1997, Standard for Plastic Sinks Table 405 

ANSI/ARI 1010-1994. Drinking Fountains 409.2.1 

and Self-Coniained, Mechanically-Refrigerated 
Drinking-Water Coolers (mechanically 
refrigerated units) 



Louisiana State Plumbing Code, 2000 edition® 



ANSl/ASSE 1001-1990. Pipe-Applied Table 606 | 

Atmospheric-Type Vacuum Breakers = 

ANSl/ASSE 1003- 1995. Water Pressure 607.9.1, | 

Reducing Valves for Domestic Water Supply System 607.9.7 

ANSl/ASSE 1010-1998, Water Hammer 607.8.2 | 

Arresters Standard § 

ANSl/ASSE 101 1-1995, Vacuum Breakers. Table 606 f 

Hose Connection = 

ANSl/ASSE 1012-1995. BackHow Preventers Table 606. f 

with Intermediate Atmospheric Vent 606.3.5 ^ 

ANSl/ASSE 1025-1978, Diverters for Plumbing Table 303 
Faucets with Hose Spray, Anti-Siphon Type, 
Residential Applications 

ANSl/ASSE 1035-1995 Vacuum Breakers, Table 303, § 

Laboratory Faucet Table 606 

ANSl/ASSE 1037-1990 Pressurized Flushing Table 303 | 

Devices (Flushometers) for Plumbing Fixtures S 

ANSl/ASSE 1047-1995, Backflow Preventer, Table 606 | 

Reduced Pressure Detector Assembly = 

ANSl/ASSE 1048-1995, BackOow Preventer, Table 606 I 

Double Check Detector Assembly ^ 

ANSl/ASSE 1052-1994. Backflow Preventer. Table 606 r 

Hose Connection | 

ANSl/ASSE 1056-1995. Vacuum Breaker. Table 606 | 

Back Siphonage. Pressure Type i 

Assembly (Spill Resistant) § 

ANSI/AWSB2.2-1991. Brazing Procedure and 309.4 | 

Performance Qualification | 

ANS I/A WW A C 1 04/A2 1 .4- 1 995, Cement-Mortar Table 303 | 

Lining for Ductile-Iron Pipe and Fittings for Water i 
ANSI/A WWA CI lO/A 21.10-98, Ductile-Iron Fittings Table 603 I 

ANSI/AWWA CI 11/A21.1 1-1995, Rubber 706.7 5 
Gasket Joints for Ductile-Iron and 
Gray- Iron Pressure Pipe and Fittings 

ANSI/AWWA C151/A 21.51-96, Ductile-Iron Table 603 | 

Water Pipe | 

ANSI/AWWA C203-97, Coal-Tar Protective Table 303 § 

Coatings and Linings for Steel Water Pipelines- i 

Enamel and Tape-Hot-Applied I 

ANSI/AWWA C509-94, Resilient-Seated Gate Valves Table 61 1 .4 | 

(including addendum 509a-95) f 

ANSI/AWWA C5 10-97, Backflow Preventers, Table 606 | 

Double Check Valve Assembly | 

ANSI/AWWA C5 11 -97, Backflow Preventers. Table 606 | 

Reduced Pressure Principle Assembly = 

ANSI/AWWA C606-1997, Grooved and Table 303 | 

Shouldered Type Joints = 



ANSI/NSF 14-1998, Plastic Piping System 
Components and Related Materials 
ANSI/NSF 24-1988 (R1996). Plumbing System 

Components for Mobile Homes & 

Recreational Vehicles 
ANSI/NSF 42-1999, Drinking Water Treatment 

Units-Aesthetic Effects 
ANSI/NSF 50-1996, Circulation System 

Components and Related Materials for Swimming 

Pools, Spas or Hot Tubs 
ANSI/NSF 53-1999. Drinking Water Treatment 

Units-Health Effects 



303.8.6,308.8.1, | 
Table 603 I 
Table 603 I 



Table 303, 

615.1 

409.10.1 



Table 303, 
615.1 

81 



ANSl/NSF 58-1997, Reverse Osmosis Drinking Table 303. 615.2 

Water Treatment Units 
ANSI/NSF 61-1999. Drinking Water System 303.6 

Components-Health Effects 

ANSI/NSPI 2-1999. Public Spas Table 409. 10 

ANSI/NSPI 3- 1 999. Permanently Installed Table 409. 1 
Residential Spas 

ANSi/NSPI 6-1999. Residential Portable Spas Table 409. 10 

ASME Boiler and Pressure Vessel Code, Section IX, 309.4 

Welding and Brazing Qualifications, 1998 Edition 
ASME A 13. 1-1 996, Scheme for the Identification 605 

of Piping Systems 

ASME A 1 12.4.1-1993 (R1998). Water Heater Relief Table 507 
Valve Drain Tubes 

ASME Al 12.1.2-1991 (R 1998), Air Gaps in 409.2.1.409.2.2. 

Plumbing Systems 606. 1 , Table 606, 

DI03 
ASME A 1 12.14.1-1975 (R1998), 704.7.2 

Backwater Valves 

ASMEA 112.18.1M-1996, Table 405 

Plumbing Fixture Fittings 

ASME A 1 1 2. 1 8.6 - 1999, Flexible Water Connectors Table 405 
ASMEA 11 2. 19.1 M- 1994, Enameled Cast Iron Table405 

Plumbing Fixtures 

ASME A 1 12.19.2M-1998, Vitreous Table 405, 

China Plumbing Fixtures 409.2. 1 

ASMEA 112.19.3M-1987(RI996), Stainless Steel Table 405 

Plumbing Fixtures (Designed for Residential Use) 
ASMEA 1 1 2. 19.4M- 1994, Steel Table 405 

Plumbing Fixtures, Porcelain Enameled Formed 
ASMEA n2.19.7M-1995, Whirlpool Bathtub 409.14.5 

Appliances 

ASMEA 112.19.8M-1987(R1996), Suction 409.10.2, 

Fittings for Use in Sw/imming Pools, Wading 409.14.6 

Pools, Spas, Hot Tubs,and Whiripool Bathtub 
Appliances 

ASMEA 112.19.9M-199! (R1998), Table 405 

Non-vitreous Ceramic Plumbing Fixtures 

ASME A 1 12.19.5-1979 (R1998), Trim Table 405 

for Water-Closet Bow/Is, Tanks and Urinals 
ASME A 1 12.19.6-1995, Hydraulic Table 405 

Requirements for Water Closets & Urinals 
ASMEA 1 12.21. IM-1991 (R1998),Floor Drains Table 303 

ASME A 1 12.2L2M-1983, Roof Drains Table 303 

ASME A 1 12.36.2M-1991 (R1998). Cleanouts Table 303 

ASME B 1.20.1-1983 (R1992), Pipe Threads, 308.2 

General Purpose 

ASME B 16. 15-1985 {R1994), Cast Bronze Threaded Table 603 
Fittings, Classes 125 and 250 

ASME B 16.18-1984 (R1992), Cast Copper Alloy Table 603 

Solder Joint Pressure Fittings 

ASME B 16.22- 1995, Wrought Copper and Copper Table 603 
Alloy Solder Joint Pressure Fittings for Copjwr 
Water Tube 

ASME B 16.23-1992, Cast Copper Alloy Solder Table 703 

Joint Drainage Fitlings-DWV for Plumbing 
Drainage Waste and Vents 

ASME B 16.24-1991(R1998), Cast Copper Table 603 

Alloy Pipe Flanges: Class 150. 300. 400, 600, 900, 
1500. and 2500 and Flanged Fittings Class 
150 and 300 

ASME B 16.26-1988. Cast Copper Alloy Fittings Table 603 

for Flared Copper Tubes 



ASME B 16.29-1994, Wrought Copper and Table 703 | 

Wrought Copper Alloy Solder Joint Drainage 
Fitlings-DWV for Plumbing Drainage Waste 
and Vents 

ASSE 1002-1999, Performance Table 606 I 
Requirements for Water Closet Rush Tank 
Ball Cocks 

ASSE 1013-1993. Reduced Pressure Principle 606.3.5. | 

Backflow Preventers Table 606 | 

ASSE 1014-1990, Hand Held Showers Table 303 I 

ASSE 1015-1993. Double Check Backflow Table 606 I 

Prevention Assembly i 

ASSE 1 1 6- 1 996, Individual Thermostatic Table 613 = 
Pressure Balancing and Combination Control 
Valves for Bathing Facilities 

ASSE 1017-1999, Temperature Actuated Mixing Table 613 f 

Valves for Primary Domestic Use | 

ASSE 1018-1986, Performance 614.4.1 | 

Requirements for Trap Seal Primer Valves - i 

Water Supply Fed | 

ASSE 1019-1997, Wall Hydrants, Frost Table 303. | 

Proof Automatic Draining, Anti-Backflow Types Table 606 I 

ASSE 1020-1998, Pressure Vacuum Table 606 f 

Breaker Assembly (Outdoor Use) | 

ASSE 1028-1980, Automatic Flow Controllers Table 303 

ASSE 1 029- 1981, Water Supply Valves: Table 6 1 3 
Mixing Valves 

ASSE 1032-1980, Dual Check Valve Type Table 606 | 
Backflow Preventers, for carbonated beverage 
dispensers-post mix type 

ASSE 1 034-198 1 , Fixed Flow Restrictors Table 303 

ASSE 5000-1998, Backflow Prevention D108.1.1 | 

Assembly Tester | 

ASSE 5010-1998, Field Test Procedures for 311.6. | 

Backflow Preventer Assemblies Table 606 i 

ASSE 5030-1998, Backflow Prevention DI08.1.2 | 

Assembly Repairer | 

ASTM A48-94ae 1 , Spec, for Gray Iron Castings Table 703, I 

710.7 I 

ASTM A 53-98, Spec, for Pipe. Steel, Black and Table 603 | 
Hot- Dipped, Zinc-Coated Welded and Seamless 

ASTM A 74-98, Spec, for Cast Iron Soil Table 703, | 

Pipe and Fittings 303.7.6.1 f 

ASTM A 126-95e I, Spec, for Gray Iron Castings Table 603, | 

for Valves, Flanges, and Pipe Fittings Table 61 1 .4 | 

ASTM A 197/A 197M-98, Spec, for Cupola Table 603 | 

Malleable Iron i 

ASTM A 268A/ 268M-96, Spec, for Seamless arid Table 603 I 

Welded Ferritic & Martensitic Stainless | 

Steel Tubing for General Service | 

ASTM A 377-95el, Spec, for Ductile-Iron Table 603 | 

Pressure Pipe i 

ASTM A 653/ A 653M-98a. Spec, for Table 303 | 

Steel Sheet, Zinc-Coated f 

(Galvanized) or Zinc-Iron Alloy-Coated | 

(Galvannealed) by the Hot-Dip Process | 

ASTM A 746-95, Spec, for Ductile Iron Gravity Table 703 | 

Sewer Pipe | 

ASTM A 865-97, Spec, for Threaded Couplings, Table 603 1 
Steel, Black and Zinc-Coated (Galvanized) 
Welded and Seamless, for Use in Steel Pipe Joints 

ASTM A 888-98ei, Spec, for Hubless Cast Iron Table 703 | 
Soil Pipe and Fittings for Sanitary and Storm 
Drain. Waste, and Vent Piping Applications 



82 



Louisiana State Plumbing Code, 2000 edition® 



• 



I ASTM B 32-96, Spec, for Solder Metal Table 303 

j ASTM B 42-98, Spec, for Seamless Copper Table 603 

I Pipe, Standard Sizes 

j ASTM B 43-98, Spec, for Seamless Red Table 603 

j Brass Pipe, Standard Sizes 

I ASTM B 75-97, Spec, for Seamless Copper Tube Table 603 

i ASTM B 88-96, Spec, for Seamless Copper Table 603, 608. 1 .2. 
j Water Tube 611.2, F103 

I ASTM B 135-96, Spec, for SeamJess Brass Tube Table 603 

I ASTM B 152-97a, Spec, for Copper Sheet, Strip, Table 303 

I Plate and Rolled Bar 

I ASTM B 248-98, Spec, for General Table 303 

Requirements for Wrought Copper and Copper- 
Alloy Plate, Sheet, Strip, and Rolled Bar 
I ASTM B 25 1 -97, Spec, for General Requirements Table 603 

for Wrought Seamless Copper and Copper-Alloy 

Tube. Square and rectangular tubing not applicable 

ASTM B 260-62T, Specification for Brazing Table 303 

Filler Metal 

ASTM B 302-98, Spec, for Threadless Copper Pipe Table 603 

ASTM B 306-96, Spec, for Copper Drainage Table 703 

Tube(DWV) 

ASTM B 447-97, Spec, for Welded Copper Tube Table 603 

ASTM B 543-96, Spec, for Welded Copper Table 703 

and Copper- A Hoy Heat Exhanger Tube 

ASTM B 587-97, Spec, for Welded Brass Tube Table 603 

ASTM B 64 1 -93. Spec, for Seamless and Table 603 

Welded Copper Distribution Tube (Type D) 

ASTM B 642-88e. Spec, for Welded Copper Alloy Table 603 

UNS NO. C2 1000 Water Tube 

ASTM B 8 13-93. Spec, for Liquid and Paste Table 303 

Fluxes for Soldering Applications for Copper 

and Copper Tube 

ASTM B 828-98, Practice for Making Capillary Table 303 

Joints by Soldering of Copper and Copper Alloy 

Tube and Fittings 

ASTM C 4-98, Spec, for Clay Drain Tile Table 703 

and Perforated Clay Drain Tile 

ASTM C 14-95, Spec, for Concrete Sewer. Storm Table 703 

Drain, and Culvert Pipe (Approved for storm 
drain use only) . 

ASTM C 76-98a, Spec, for Reinforced Concrete Table 703 

Culvert, Storm Drain, and Sewer Pipe {Approved for 
storm drain use only) 

ASTM C 361-98, Spec, for Reinforced Concrete Table 703 

Low-Head Pressure Pi{« Metric (Approved for 
storm drain use only) 

ASTM C 4 112-94, Spec, for Concrete Drain Tile Table 703 

ASTM C 425-98, Sf^c. for Compression Joints 308.5, 

for Vitrified Clay Pipe and Fittings Table 703 

ASTM C 443-98, Spec, for Joints for Circular Table 303 

Concrete Sewer and Culvert Pipe, Using 
Rubber Gaskets 

ASTM C 444-95. Spec, for Perforated Concrete Pipe Table 703 
ASTM C 564-97, Spec, for Rubber Gaskets for Table 303, 

Cast Iron Soil Pipe and Fittings 706.4.2 

ASTM C478-96. Spec, for PrecasJ Table 703, 

Reinforced Concrete Manhole Sections 710.7 

ASTM C 700-98. Spec, for Vitrified Clay Pipe. Table 703 

Extra Strength. Standard Strength, and Perforated 
ASTM C 1053-90. Spec, for Borosilicate Glass Pipe Table 703 
and Fittings for Drain. Waste, and Vent (DWV) 
Applications 

ASTM C 1 173-97. Spec, for Flexible Transition Table 303 

Couplings for Underground Piping Systems 



ASTM C 1 277-97. Standard Specification for Table 303 = 

Shielded Couplings Joining Hubless Cast i 

Iron Soil Pipe and Fittings | 

ASTM D 395-98. Test Methods for Rubber Table 303 | 

Property-Compression Set. See 707.4 | 

ASTM D 41 2-98a. Test Methods for Rubber Table 303 1 

Properties in Tension. See 707.4 | 

ASTM D 788-96, Spec, for Methacrylate Table 303 | 

Molding and Extrusion Compounds = 

ASTM D 789-98, Text Methods for Determination Table 303 - 

of Relative Viscosity, Melting Point, and Moisture 

Content of Polyamide (PA) 

ASTM D 1457-88. Spec. PTFE Molding and Table 303 

Extrusion Materials 

ASTM D 1527-96a. Spec, for Acrylonitrile- Table 603 | 

Butadiene-Styrene(ABS) Plastic Pipe, | 

Schedules 40 and 80 I 
ASTM D 1785-96b, Spec, for Poly (Vinyl Chloride) Table 603 f 

(PVC) Plastic Pipe, Schedules 40, 80, and 1 20 | 

ASTM D 1869-95 Spec, for Rubber Rings Table 303 | 

for Asbestos-Cement Pipe § 

ASTM D 2104-96, Spec, for Polyethylene (PE) Table 603 | 

Plastic Pipe, Schedule 40 i 

ASTM D 2 1 33-8 1 , Spec, for Acetal Resin Table 303 

Injection Molding and Extrusion Materials 

ASTM D 2235-96a, Listed, Spec, for Solvent Table 303 § 

Cement for Acrylonitrile-Butadiene-Styrene i 

(ABS) Plastic Pipe and Fittings | 

ASTM D 2239-96a, Spec, for Polyethylene (PE) Table 603 | 

Plastic Pipe (SIDR-PR) Based on Controlled | 

Inside Diameter f 

ASTM D2241-96b, Spec, for Poly (Vinyl Table 603 | 

Chlpride)(PVC) Pressure-Rated Pipe | 

(SDR-Series). Listed | 

ASTM D 2282-96a, Spec, for Acrylonitrile- Table 603 f 

Butadiene-Styrene (ABS) Plastic Pipe (SDR-PR) | 

ASTM D 2321-89, Practice for Table 303, | 

Underground Installation of Table 703 | 

Thermoplastic Pipe for Sewers and Other | 

Gravity-Flow Applications, Installation | 

ASTM D 2466-97. Specification for Poly (Vinyl) Table 603 f 

Chloride) (PVC) Plastic Pipe Fittings Schedule 40 | 

ASTM D 2467-98a, Spec, for Socket-Type Table 603 I 
Poiy(Vinyl Chloride)(PVC) Plastic Pipe 
Fittings, Schedule 80. Listed 

ASTM D 2468-96, Spec, for Acrylonitrile- Table 603 I 

Butadiene-Styrene (ABS), Plastic Pipe Fittings, | 

Schedule 40. Listed | 

ASTM D 2564-96a. Listed, Spec, for Solvent Table 303 1 
Cements for Poly(Vinyl Chloride)(PVC) 

Plastic Piping Systems i. 

ASTM D 2657-97, Practice for Heat Joining of Table 303, s 

Polyblefin Pipe and Fittings 612.5.2 | 

ASTM D 266 1 -97a, Spec, for Acrylonitrile Table 703 i 
Butadiene-Styrene (ABS) Plastic Drain, Waste 

and Vent Pipe and Fittings Listed ^ 

ASTM D 2665-98, Spec, for Poly (Vinyl Table 703 | 
Chloride)(PVC) Plastic Drain, Waste, and 

Vent Pipe and Fittings ^ 

ASTM D 2672-96a, Spec, for Joints for IPS Table 603 = 

PVC Pipe Using Solvent Cement f 

ASTM D 2737-96a. Spec, for Polyethylene (PE) Table 603 T 

Plastic Tubing. Listed " 

ASTM D 275 1 -96a, Spec, for Acrylonitrile- Table 703 | 
Butadiene-Styrene (ABS) Sewer Pipe and Fittings 



Louisiana State Plumbing Code. 2000 edition® 



83 



• 



* 



• 



• 



ASTM D 2774-94. Standard Practice for Table 303 

Underground Installation of Thermoplastic 
Pressure Piping 

ASTM D 2846/D 2846M-97, Spec, for Chlorinated Table 603 

Poly(VinyI Chloride)(CPVC) Plastic Hot-and 
Cold-Water Distribution Systems 

ASTM D 2855-96, Standard Practice for Table 303 

Making Solvent-Cemented Joints with 
Poly(Vinyl Chloride)(PVC) Plastic Pipe and Fittings 
ASTM D 3034-98, Spec, for Type PSM Poly Table 703 

(Vinyl Chloride)(PVC) Sewer Pipe and Fittings 
ASTM D 3 1 39-98, Spec, for Joints for Plastic Table 603 

Pressure Pipes Using Flexible Elastomeric 
Seals. See 308.8.2 

ASTM D 32 1 2-96a, Spec, for Joints for Drain and Table 703 

Sewer Plastic Pipes Using Flexible Elastomeric Seals 
ASTM D 455 1-96 Poly (Vinyl Chloride) (PVC) Plastic 303.7.7.1. 
Flexible Concealed Water-Containment Membrane Table 409.8 

ASTM F 402-93, Practice for Safe Handling of Table 303 

Solvent Cements, Primers, and Cleaners Used for 
Joining Thermoplastic Pipe and Fittings 

ASTM F 409-98, Spec, for Thermoplastic Table 603 

Accessible and Replaceable Plastic Tube 
and Tubular Fittings 

ASTM F 437-96a. Spec, for Threaded Chlorinated Table 603 

Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, 
Schedule 80. Listed 

ASTM F 439-98, Spec, for Socket-Type Table 603 

Chlorinated Poly (Vinyl Chloride) (CPVC) 
Plastic Pipe Fittings, Schedule 80. Listed 

ASTM F 44 1/F 44 1 M-97, Spec, for Chlorinated Poly Table 603 
(Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 
40 and 80. Listed 

ASTM F 442/F 442M-97. Spec, for Chlorinated Poly Table 603 
(Vinyl Chloride) (CPVC) Plastic Pipe (SDR-PR) 
ASTM F 493-97, Spec, for Solvent Cements for Table 303 

Chlorinated Poly(VinyI Chloride)(PVC) Plastic 
Pipe and Fittings 

ASTM F 628-97ae 1 , Spec, for Acrylonitrile- Table 703 

Butadiene-Styrene(ABS) Schedule 40 Plastic 
Drain, Waste, and Vent Pipe with a Cellular 
Core. Listed. 

ASTM F 656-96a, Spec." for Primers for Use in Table 303 

Solvent Cement Joints of Poly(Vinyl Chloride) 
(PVC) Plastic Pipe and Fittings 

ASTM F 789-95a. Spec, for Type PS-46 and Table 703 

Type PS- 115 Poly (Vinyl Chloride)(PVC) 
Plastic Gravity Row Sewer Pipe and Fittings. 
See 704.1. 1101.4, 1103.3, 1103.4 

ASTM F 876-98, Spec, for Crosslinked Table 603 

Polyethylene (PEX) Tubing 

ASTM F 877-98, Spec, for Crosslinked Table 603 

Polyethylene (PEX) Plastic Hot and Cold-Water 
Distribution Systems. Listed 

ASTM F 89 1 -98, Spec, for Coextruded Table 703 

Poly(Vinyl Chloride)(PVC) Plastic Pipe with 
a Cellular Core 

ASTM F 128 1 -98a. Spec, for Crosslinked Table 603 

Polyethylene/A luminum/Crosslinked Polyethylene 
(PEX-AL-PEX) Pressure Pipe 

ASTM F 1282-98a. Spec, for Polyethylene/ Table 603 

Aluminum/Polyethylene (PE-AL-PE) Composite 
Pressure Pipe 

ASTM F 1290-98a. Practice for Elecirofusion Table 303. 

Joining Polyolefin Pipe and Fittings 612.5.2 



ASTM F 1 380-95a, Spec, for Metal Insert Fittings Table 303 

for Polybutylene (PB) Tubing 

ASTM F 1 488-98, Spec, for Coextruded Table 703 

Composite Pipe 

ASTM F 1499-97, Spec, for Coextruded Composite Table 703 
Drain. Waste, and Vent Pipe (DWV) 

CAN/CS A-B64. 10-94, Manual for the 311.6, 

Selection, Installation, Maintenance, Table 606 

and Field Testing of Backflow Prevention Devices 
CAN/CSAB125-1993. Plumbing Fittings 606.3.7 

CAN/CSA-B137.2-93, Listed, PVC Injection-Molded Table 603 
Gasketed Fittings for Pressure Applications 
CAN/CS A-B 137.5-97, Listed, Cross-Linked Table 603 

Polyethylene (PEX) Tubing Systems for 
Pressure Applications 

CAN/CSA-BI81.1-96,ABS Drain. Waste, and 704.7.2 

Vent Pipe and Pipe Fittings 

CAN/CS A-B 18 1.2-96, PVC Drain. Waste, and 704.7.2 

Vent Pipe and Pipe Fittings 

CAN/CS A-B 1 8 1 .3-M86(R 1 992), Polyolefin Table 703 

Laboratory Drainage Systems 

CAN/CS A-B- 1 82.4-97, Profile PVC Sewer Pipe Table 703 

and Fittings 

CDA Copper Sovent Single Stack Plumbing L105.3 

System Design Handbook No. 402/0 {For 
informational purposes only since is 
alternate designed plumbing governed 
under Chapter 12 requirements) 

CDA Copper Tube Handbook Table F103C 

{For informational purposes only) 

CISPI HS-74(R1986), Spec, for Cast Iron Soil Table 703 

Pipe and Fittings for Hub and Spigot Sanitary 
and Storm Drain, Waste and Vent Piping 
Applications 

CISPI HSN-85, Standard Spec, for Neoprene Table 303 

Rubber Gaskets for Hub and Spigot Cast 
Iron Soil Pipe and Fittings 

CISPI Std. 301-90, Std. Spec, for Hubless Cast Table 703 

Iron Soil Pipe and Fittings for Sanitary and 
Storm Drain, Waste, and Vent Piping 
Applications 

CISPI 310-90, Spec. forCISPI's 
Approved Coupling for use in connection 
with Hubless Cast Iron Soil Pipe 
and Fittings for Sanitary and 
Storm Drain, Waste, and Vent 
Piping Applications 

FMRC 1680-89, Couplings Used In Hubless Table 303 

Cast Iron Systems for Drain, Waste or Vent, 
Sewer, Rainwater or Storm Drain Systems Above 
and Below Ground, Industrial/Commercial 
and Residential 

FS A-A-2956 (1995). Heater. Water, Electrical. 503. 1 

Residential 

FS HH-C-536c(54). Plumbing Fixture Setting Table 405 

Compound 

FS QQ-L- 1 56 (46). Caulking Lead Table 405 

FS QQ-L-201 F(2) (1965). Lead Sheet, Table 303 

[AMD 02 (1970)] 

FS SS-P-38 1 . Concrete Pipe Pressure Reinforced- Table 703 

Pretention Reinforcement Steel 



Table 303, Table 703, 
706.5.3 



84 



Louisiana State Plumbing Code, 2000 edition® 



• 



• 



FS WW-N-35 1 a(56). Nipples Pipe (Threaded) 
FS WW-P-325(44), Pipe, Bends, Traps, Caps, and 
Plugs; Lead (for Industrial Pressure, and Soil and 
Waste Applications) 

FS WW-P-541 E/GEN(1), (1980), Plumbing Fixtures 
(General Specifications), [AMD 01 (1990)] 

lAPMO PS 49-1993, Backflow Prevention 
Requirements for Fixture Fittings with Hose 
Connected Singular Moveable Outlets 

MSS SP-72 (1992), Balf Valves v^ith Flanged or 
Butt-Welding Ends for General Service 
MSS SP-80 (1997), Bronze Gate, Globe, Angle 
and Check Valves 

MSS SP-1 10 (1996), Ball Valves Threaded, Socket- 
Welding, Solder Joint, Grooved, and Flared Ends 



Table 603 
Table 703 



Table 405 



606.3.7 



Table 61 1.4 



Table 61 1.4 



Table 61 1.4 



NFiPA 70-99 National Electrical Code 
NFiPA 99-99, Medical Gas Systems 

PDI-GlOl-1996, Testing and Rating Procedure for 
Grease Interceptors with Appendix of Sizing and 
Installation Data 
FDI-WH201 - 1992, Water Hammer Arresters 



717.9.2,1101.7 
1302, G 105 

M105.1 



607.8.2 



H 


SBCCI Standard Building Code, 


201.3,202, 


5 


1994 Edition 


303.8.3.1,304.2.2 


s 




306.1.407.4, 


E 




609.5, 616, L104.8 


— 




1108.5 


s 


SBCCI Standard Fire Prevention Code, 


201.3 


5 


1994 Edition 




~ 


SBCCI Standard Gas Code, 


201.3, 616 


£ 


1994 Edition 




1 


SBCCI Standard Mechanical Code, 


201.3.616 


4^ 


1994 Edition 




w 


UL 174-1996, Water Heaters, Household Electric 503. 1 


1 


Storage Tank 




? 


UL 1795-1999, Hydromassage Bathtubs 


409.14.4 



1403 ORGANIZATIONS 

The following is a list by name and address of those agencies, 
associations, institutes and others that are referred to in this 
code by name, initials or symbols. Further there are those 
listed, for convenience, whose technical and other services 
are made available to the Standard Plumbing Code. 



AGA 



ANSI 



American Gas Association, Inc. 

1515 Wilson Blvd. 

Arlington, Virginia 22209 

American National Standards Institute, Inc. 

1 1 West 42nd Street, 13th Floor 

New York, New York 10036 

Tel. (212)642-4900 



ARI 



Air-Conditioning & Refrigeration Institute 

4301 N. Fairfax Drive, Suite 425 

Arlington, Virginia 22203 

Tel. (703) 524-8800 

Fax (703)528-3816 

Louisiana State Plumbing Code, 2000 edition© 



ASME The American Society of Mechanical Engineers 

United Engineering Center 

345 East 47th Street 

New York, New York 10017 

Tel. (212) 705-8500 

or 

ASME's New Jersey Service Center 

Tel. 1-800-843-2763 [1-800-THE-ASME] 

ASSE American Society of Sanitary Engineering 

28901 Clemens Road, Suite 100 

Westlake, Ohio 44145 

Tel. (440) 835-3040 

ASTM American Society for Testing and Materials 

100 Barr Harbor Drive 
West Conshohocken, Pennsylvania 19428-2959 

Tel. (610)832-9585 
Fax (610) 832-9555 

AWS American Welding Society 

550 N.W. LeJeune Road 

Miami, Florida 33126 

Tel. (305) 443-9353 

Tel. (800) 443-9353 

Fax (305)443-7559 

AWWA American Water Works Association 

6666 West Quincy Avenue 

Denver, Colorado 80235-3098 

TeL (303) 794-7711 

Tel. 1-800-926-7337 

CDA Copper Development Association, Inc. 

260 Madison Ave. 
New York, New York 10016 

CISPI Cast Iron Soil Pipe Institute 

5959 Shallowford Road. Suite 419 

Chattanooga, Tennessee 37421 

CAN/CSA Canadian Standards Association 

178 Rexdale Boulevard 

Rexdale (Toronto), Ontario 

Canada M9W1R3 

Tel. (416) 747-4000 

Tel. 1-800-463-6727 

FMRC Factory Mutual Research Corporation 

Standards-Laboratories Department 

1 151 Boston-Providence Turnpike, P.O. Box 9102 

Norwood, Massachusetts 02062-9102 

FS Federal Specifications 

General Services Administration 

Federal Supply Service 

Specification Section 

470 E. L'Enfant Plaza SW, Suite 8100 

Washington, D.C. 20401 

Tel. (202) 619-8925 

Fax (202)619-8978 

85 



MSS 



Manufacturers Standardization Society 

of the Valve and Fittings Industry, Inc. 

127 Park Street, N.E. 

Vienna, Virginia 22180-4602 

Tel. (703)281-6613 

Fax (703)281-6671 



NFiPA 



National Fire Protection Association 

One Batterymarch Park 

Quincy, Massachusetts 02269-9101 



NSF 



NSF International 

3475 Plymouth Road 

P.O. Box 130140 

Ann Arbor, Michigan 481 13-0140 



I NSPI 



National Spa and Pool Institute 

2111 Eisenhower Avenue 

Alexandria, Virginia 22314 

Tel. (703) 838-0083 



PDI 



Plumbing and Drainage Institute 

45 Bristol Drive, Suite 101 

South Easton, Massachusetts 02375 

Tel. (800) 589-8956 

Tel. (508)230-3516 

Fax (508) 230-3529 



i PPFA 



Plastic Pipe & Fittings Association 

800 Roosevelt Road, Building C, Suite 20 

Glen Ellyn, Illinois 60137-5833 

Tel. (630) 858-6540 

Fax (630)790-3095 



PPI 



Plastic Pipe Institute 

A Division of the Plastics Industry, Inc. 

1801 "K" Street, NW 

Washington, DC 20006-1301 

Tel. (202)974-5318 

"more PE pipe focus") 



I UL 



Underwriters Laboratories, Inc.** 
333 Pfmgsten Road 

Northbrook, Illinois 60062-2096 
Tel. (847) 272-8800 
Fax (847)272-8129 



** Standards available from: 



Global Engineering Documents 

15 Inverness Way East 

Englewood, Colorado 80112-5776 

Tel. (303) 397-7956 

Tel. (800)854-7179 

Fax (303) 397-2740 



86 



Louisiana State Plumbing Code, 2000 edition® 



APPENDIX A 

ROOF DRAIN SIZING METHOD 



(APPENDIX A IS FOR INFORMATIONAL PURPOSES ONLY) 



A 101 Sizing Example 

The following example gives one method of sizing the 
primary drain system and sizing the scuppers in the parapet 
walls. This method converts the roof area to an equivalent 
roof area for a 4-inch rate of rainfall so that Table 1 108.1 and 
Table 1 108.2 can be used as printed. The method described in 
1108.2.2 converts Table 1108.1 and Table 1108.2 to tables 
for the rate of rainfall specified forjthe area. 

AlOl.l Problem: Given the roof plan in Figure AlOl.l and 
the site location in Birmingham, Alabama, size the primary 
roof drain system and size the scuppers, denoting the required 
head of water above the scupper for the structural engineer. 

Note: For the purposes of this appendix the following metric 
conversions are applicable: 
1 in = 25.4 mm 
1 ft = 305 mm 
1 ft2 = 0^0929 m2 







\ 


2500 SQ.FT. 


2500 SQ. FT. 

/ \ 


\ 


Neo/ 


\Rn/ 


2500 SQ. FT. 


\ 


/ 


2500SQ. FT. 

/ V 


11 





SCUPPER 



I— 1/4 IN/FT SLOPE 

! BUILDING STORM DRAIN 



•' 



Figure A101.1 
Example Roof Plan 

A 101.2 Solution; 

Step 1. From Figure 1108.4 the 100 year 60 minute 

precipitation is 3.75 inches per hour. 

Step 2. Each vertical drain must carry 2,500 sq ft of roof area 
at 3.75 inches per hour of rainfall. To convert to ah area for a 
4 inch per hour rainfall to enter Table 1 108.1 do this: 

2,500 -=- 4 X 3.75 = 2,344 sq ft. 

Enter Table 1108.1 until you find a diameter pipe that will 

carry 2,344 sq ft. A minimum 4-inch vertical drain is 

required. 



Step 3. Horizontal Drain 

2,500 sq ft. 

To convert to an area for use in Table 1 108.2 do this: 
2,500 -r 4 X 3.75 = 2,344 sq ft 

Enter Table 1 108.2 until you find a diameter pipe that will 
carry 2,344 sq ft. A minimum 4-inch diameter pipe with a 
V4 inch per foot slope will carry 2,650 sq ft. A minimum 
4-inch diameter drain on a 1/4 inch per foot slope is 
required. 

Step 4. Horizontal Drain 

5,000 sq ft. 

To convert to an area for use in Table 1 108.2 do this: 
5,000 -r 4 X 3.75 = 4,688 sq ft. 

Enter Table 1 108.2 until you find a diameter pipe that will 
carry 4,688 sq ft. A 5-inch diameter pipe with a 1/4 inch 
per foot slope will carry 4,720 sq ft. A minimum 5-inch 
diameter drain on a 1/4 inch per foot slope is required. 

Step 5. Horizontal Drain 

10,000 sq ft. 

To convert to an area for use in Table 1 108.2 do this: 
10,000^4x3.75 = 9,375 sq ft. 

Enter Table 1 108.2 until you find a diameter pipe that will 
carry 9,375 sq ft. An 8-inch diameter pipe on 1/4 inch per 
foot slope will carry 16,300 sq ft but a 6-inch will carry 
only 7,550 sq ft, therefore, use an 8-inch diameter drain on 
a 1/4 inch per foot slope. 

Step 6. From Figure 1 109.3 the rate caused by a 100 year 15 
minute precipitation is 7.2 inches per hour. The scuppers 
must be sized to carry the flow caused by a rain fall rate of 
7.2 inches per hour. 

Step 7. Each scupper is draining 2,500 sq ft of roof area. To 
convert this roof area to an area for use with Table A101.2 do 
this: 

2,500 ^ 4 x 7.2 = 9,375 sq ft = 4,500 sq ft. 
Enter Table A101.2 to find a length and head that will 
carry 4,500 sq ft or more. From Table A101.2 a 12-inch 
wide weir with a 4-inch head carries 6,460 sq ft. Use 12- 
inch wide x 5-inch high scuppers at four locations. A 
height of 5 inches is needed to assure an open area above 
the 4-inch head. 

Step 8. Notify the structural engineer that the design of the 
roof structure must account for a height of water to the 
scupper entrance elevation plus 4 inches for the required head 
to cause design flow. 



Louisiana State Plumbing Code, 2000 edition® 



87 










Figure Al 01 .2 














Table A1 01 .2 












Scupper Sizing Table 












Roof Area (sq U 








Head 




Lengtihi (L) of Weir (Inches) 




(H) 
















loclhes 


41 


6 


B 


12 


IS 


20 


24 


1 


273 


418 


562 


851 


1,139 


1,427 


1.715 


2 


734 


1,141 


1.549 


2,365 


3.180 


3.996 


4,813 


3 


1,274 


2,023 


2,772 


4,270 


5.768 


7.267 


8,766 


4 


1,845 


2,999 


4,152 


6,460 


8,766 


11,073 


13.381 


6 


2,966 


5,087 


7.204 


11,442 


15,680 


19,918 


24.160 



Table based on rainfall of 4 inches per hour. 



• 



88 



Louisiana State Plumbing Code, 2000 edition® 



APPENDIX B 

TRAVEL TRAILERS AND TRAVEL TRAILER PARKS 

: (APPENDIX B IS A REQUIREMENT OF THIS CODE) 



BlOl GENERAL 

With the exception of Section 6112, the requirements set forth 
in this appendix shall apply specifically to all new travel trailer 
parks, and to additions to existing parks as herein defined, and 
are to provide minimum standards for (sanitation and plumbing 
installation within these parks, fcir the accommodations, use 
and parking of travel trailers. Plumbing installations in travel 
trailers shall be installed in accordance with ANSI A119.2, 
Part I. 

B102 DEFINITIONS 

■■ ■ i .1 

Definitions contained in Chapter 2 shall also apply to this 
appendix except where the following special definitions shall 
apply. 

AIR LOCK = a condition where air is trapped in a drain or 
drain hose and retards or stops the flow of liquid waste or 
sewage. 

CENTER - of a mobile/manufactured home or travel trailer 
is the longitudinal center line located midway between the 
right and the left side. 

COMBINATION COMPARTMENT - a shower stall with 
or without a door which provides for or includes a water 
closet. It is sized for occupancy of only one person! 

DEPARTMENT HAVING JURISDICTION - the 
administrative authority or other law enforcement agency 
having jurisdiction over this regulation. 

DEPENDENT TRAVEL TRAILER - a trailer coach not 
equipped with a water closet. 

DRAIN HOSE - the approved type hose, flexible and easily 
detachable, used for connecting the drain outlet to a sewer 
inlet connection. 



OUTLET = the lowest | end of the main drain to 
which the terminal end of the drain hose is connected. 

INDEPENDENT MOBILE/MANUFACTURED HOME 

OR TRAVEL TRAILER - one equipped with a water closet: 
and a bath or shower. 



COUPLING - the terminal end of the water system 
to which the water service connection is made. It may be a 
swivel fitting or threaded pipe end.! 

INTERMEDIATE WASTE HOLDING TANK - (travel 
trailers only) an enclosed tank for the temporary retention of 
water-borne waste. 



LENGTH - the distance measured from the tip of the hitch to 
the part farthest to the rear of a mobile/manufactured home or 
travel trailer. 

MpBILE/MANUFACTURED HOME OR TRAVEL 
TRAILER PARK - any lot, tract, parcel or plot of land upon 
which more than one travel trailer and/or 
mobile/manufactured homes are parked for the temporary or 
permanent use of a person or persons for living, working or 
congregating. 

PARK DRAINAGE SYSTEM - the entire system of 
drainage piping used to convey sewage or other wastes from 
the mobile/manufactured home or travel trailer drain outlet 
connection, at its connection to the mobile/manufactured 
home or travel trailer site, to a public sewer or private sewage 
disposal system. 

PARK WATER SUPPLY SYSTEM - all of the water 
supply piping within the park, extending from the main 
public supply or other source of supply to, but not including, 
the mobile/manufactured home or travel trailer service 
system, and including branch service lines, fixture devices, 
service buildings and appurtenances thereto. 

SERVICE BUILDING - a building housing toilet and 
bathing facilities for men and women, with laundry facilities. 

SEWER LATERAL - that portion of the park drainage 
system extending to a mobile/manufactured home or travel 
trailer site. 

TRAILER TRAP - a device, fitting or assembly of fittings 
installed in the sewer lateral for a travel trailer or 
mobile/manufactured home which is used to prevent the 
circulation of air between the park drainage system and the 
drainage system of the individual travel trailer or 
mobile/manufactured home. 

TRkVEL TRAILER - a vehicular, portable structure built on 
a chassis, designed to be used as a temporary dwelling for 
travel, recreational and vacation uses, permanently identified 
"Travel Trailer" by the manufacturer on the trailer and when 
factory equipped for the road, having a body width not 
exceeding 8 ft (2438 mm) and being of any length provided its 
gross weight does not exceed 4,500 lb (2041 kg), or being of 
any, weight provided its overall length does not exceed 29 ft 
(8839 mm). 

TRAVEL TRAILER SANITARY SERVICE STATION - 

a sewage inlet with cover, surrounded by a concrete apron 
sloped inward to the drain, and watering facilities to permit 
periodic washdown of the immediately adjacent area, to be 
used as a disposal point for the contents of intermediate waste 
holding tanks of travel trailers. 



Louisiana State Plumbing Code. 2000 edition© 



89 



B103 GENERAL REGULATIONS 

B103.1 Governing Provisions 

The general provisions of the Louisiana State Plumbing Code 
shall govern the installation of plumbing systems in travel 
trailer parks, except where special conditions or construction 
are specifically defined in this appendix. 

B103.2 Travel Trailer Sites 

B103.2.1 Travel trailers shall not hereafter be parked in 
any travel trailer park unless there are provided plumbing 
and sanitation facilities installed and maintained in 
conformity with these regulations. Every travel trailer 
shall provide a gastight and watertight connection for 
sewage disposal which shall be connected to an 
underground sewage collection system discharging into a 
public or private disposal system. 



1.2.2 No dependent travel trailer shall be parked at 
any time in a space designed and designated for an 
independent travel trailer unless public toilet and bath 
facilities are available within 200 ft (61 m) of the 
dependent travel trailer. 

Bl©3.3 Travefl Trailer Sanitary Service Station 
At least one travel trailer sanitary service station shall be 
provided in all travel trailer parks that accept any travel 
trailers having an intermediate waste holding tank. 



B104 PLANS AND SPECIFICATIONS 

The owner or operator of every travel trailer park, before 
providing areas of space for the use and accommodation of 
travel trailers, shall make application for a permit (where 
such permit is required by state, parish, city or other local 
laws or ordinances) or, regardless of whether or not an actual 
permit is required, shall file two sets of plans and 
specifications with the department(s) having jurisdiction for 
their review and approval. The plans and specifications shall 
be in detail as follows: 

1. A scaled plot plan of the park, indicating the spaces, 
area or portion of the park for the parking of travel 
trailers. 

2. Size, location and specification of the park drainage 
system. 

3. Size, location and specification of water supply lines. 

4. Size, location and layout of service building. (See 
B105.) 

5. Size, location, specification and layout of the fire 
protection system, if applicable. 

6. A scaled layout of typical trailer sites. 

7. Applications/submittals shall bear the approval of the 
local enforcement agencies as to compliance with city 
or parish plumbing, zoning and health ordinances. 

8. Plumbing required by this article shall comply with all 
city, parish and state plumbing and health ordinances 
and regulations. 

9. The issuance of a permit (or an approval of a 
submittal) shall not constitute approval of any 

90 



violation of this article or of any city or parish 
ordinance or regulation. 
10. An approved set of plans and specifications and a copy 
of the permit (or written approval of a submittal) shall 
be kept on the park premises until the final inspection 
has been made. 

BIOS SERVICE BUILDINGS 

BlOS.l Minimum Facilities 

BlOS.l.l Each travel trailer park shall have at least one 
service building to provide necessary sanitation and 
laundry facilities. Those parks serving independent travel 
trailers need provide only minimum facilities. ^ 

B105.L2 The service building shall be of permanent 
construction with an interior finish of moisture resistant 
material which will stand frequent washing and cleaning 
and the building shall be well-lighted and ventilated at all 
times. 

B 105.2 Independent Trailers 

The service buildings of only independent travel trailer parks 
shall have a minimum of one water closet, one lavatory, one i 
shower or bathtub for females and one water closet, one 
lavatory, and one shower or bathtub for males. In addition, at | 
least one laundry tray and one drinking fountain located in a | 
common area shall be provided. = 

B105.3 Dependent Trailers 

The service buildings in parks that also accommodate 
dependent travel trailers shall have a minimum of two water 
closets, one lavatory, one shower or bathtub for females, and 

one water closet, one lavatory, one urinal, and one shower or i 

bathtub for males. In addition, at least one laundry tray and i 

one drinking fountain located in a common area shall be i 

provided. The above facilities are for a maximum of ten | 
dependent travel trailers. For every ten additional dependent 

travel trailers (or any fraction thereof) the following i 

additional fixtures shall be provided: One laundry tray, one = 

shower or bathtub for each sex, and one water closet for | 

females. Also, one additional water closet for males shall be | 

provided for every 15 additional dependent travel trailers (or | 

any fraction thereof). 1 

Bl 05.4 Water Supply for Fixtures 

B105.4.1 Hot and cold water shall be provided for all * 
fixtures except water closets. 

B105,4.2 Each water closet, tub and shower shall be in i^ 
separate compartments, with self-closing doors on all 
water closet compartments. The shower stall shall be a 
minimum of 3 x 3 ft (914 x 914 mm) in area, with a 
dressing compartment with a stool or bench for females. 

B105.4.3 The laundry trays and washing machines shall 
be contained in a room separate from the toilet rooms. 

B105.5 Floor Drains 

A minimum 2-inch floor drain shall be installed in each toilet | 
room and laundry room (see 409.4. 1.1.). i 



Louisiana State Plumbing Code, 2000 edition® 



• 



• 



• 



B106 MATERIALS 

Unless otherwise provided for in this appendix, all piping 
fixtures or devices used in the installation of drainage and 
vi'ater supply systems for travel trailer parks, or parts thereof, 
shall conform to the quality and weights of materials required 
by the Louisiana State Plumbing C0de. 

B107 GENERAL REGULATIONS 

Unless otherwise provided for in this appendix, all plumbing 
fixtures, piping drains, appurtenances and appliances 
designed and used in a park drainage, water supply system 
and service connections shall be installed in conformance 
with the Louisiana State Plumbing Code. 

B108 PARK DRAINAGE SYSTEM 

B108.1 The main sewer and sewer laterals shall be installed in 
a separate trench not less than 5 ft (1524 mm) from the park 
water service or distribution system. (See 608.3 and 608.4) 



L2 The minimum size of pipe in any travel trailer park 
drainage system shall be 4 inches. 



J.3 Each travel trailer shall be considered as six fixture 
units in determining discharge requirements in the design of 
park drainage and sewage disposal systems. 



A Minimum grade for sewers shall be so designed that 
the flow will have a mean velocity pf 2 ft per second (0.6096 
m/s) when the pipe is flowing half full. 



,5 The discharge of a park drainage system shall be 
connected to a public sewer. Where a public sewer is not 
available, an approved individual or community sewage 
disposal system shall be installed, of a type that is acceptable 
and approved by the administrative authority or other law 
enforcement agency having jurisdiction over this regulation. 
[See Chapter XIII (Sewage Disposal);, State of Louisiana 
Sanitary Code] 



L6 Manholes and/or cleanouts shall be provided as 
required in Chapter 7 of the Louisiana State Plumbing Code. 
Manholes and/or cleanouts shall be accessible and brought to 
grade. 



L7 The main sewer shall be provided with a minimum 
4-inch vent, not more than 5 ft (1524 mm) downstream from 
its upper trap. Long mains shall be^ provided with additional 
relief vents at intervals of not more than 200 ft (61 m) 
thereafter. These relief vents shall be a minimum of 4 inches 
and shall be securely supported and extended a minimum of 
10 ft (3048 mm) above the ground. 



L8 Branch lines or sewer laterals to individual travel 
trailers shall be not less than 4-inch diameter. 



J.9 Sewer inlets shall be 4-inch diameter and extend 
above grade 3 to 6 inches (76 to 152 mm). Each inlet shall be 
provided with a gas-tight seal when connected to a trailer and 
have a gas-tight seal plug for use whfen not in service. 



B108.10 Each trailer site shall be provided with a trailer trap. 
Sewer laterals over 30 ft (9144 mm) from the main park 
drainage sewer shall be properly vented and provided with a 
cleanout brought to grade. 

B108.il To provide the shortest possible drain connection 
between the travel trailer outlet and drain inlet, all drain inlets 
shall terminate with reference to the site location of the travel 
trailer. 

B108.12 Drain connection shall slope continuously 
downward and form no traps. All pipe joints and connections 
shall be installed and maintained gastight and watertight. 

B108.13 No sewage, waste water, or any other effluent shall 
be allowed to be deposited on the surface of the ground. 

B108.14 Upon completion and before covering, the park 
drainage system shall be subjected to a static water test. The 
water test shall be applied to the drainage system either in its 
entirety or in sections. If applied to the entire system, all 
openings in the piping shall be tightly closed, except the 
highest opening, and the system shall be filled with water to 
point of overflow. If the system is tested in sections, each 
op)ening shall be tightly plugged except the highest opening 
of the section under test, and each section shall be filled with 
water, but no section shall be tested with less than a 10 ft 
head of water (30 kPa). In testing successive sections, at least 
the upper 10 ft (3048 mm) of the next preceding section shall 
be tested, so that no joint or pipe in the system shall have 
been submitted to a test of less than 10 ft head of water (30 
kPa). The water shall be kept in the system, or in the portion 
under test, for at least 15 minutes before inspection starts; the 
system shall then be tight at all points. 

B109 WATER DISTRIBUTION SYSTEM 

B109.1 General 

Every travel trailer site shall be provided with an individual 
branch service line delivering safe, pure, and potable water. 
The outlet of the branch service line shall terminate on the 
left side of the site of the travel trailer. 

B109.2 Minimum Size 

Water service lines to each trailer site shall be sized to 
provide a minimum 8 gpm (0.505 L/s) at the point of 
connection with the trailer distribution system. All water 
service lines shall be a minimum of ^/4 inch. 

B109.3 Backflow and Service Shutoff 
B109.3.1 A minimum of a double check valve assembly 
backflow preventer shall be installed on the branch service 
line to each independent trailer at, or near, the trailer service 
connection. Backflow preventive devices shall be of an 
approved type certified by a recognized testing agency as to 
compliance and performance outlined herein. Valves shall be 
designed and maintained to close driptight at a reduced 
pressure of not less than 1 nor more than 5 psi (6.9 to 34.5 
kPa). Valves must be identified with the manufacturer's name 
and model number. 



Louisiana State Plumbing Code, 2000 edition© 



91 



B109.3.2 A separate service shutoff valve shall be 
installed in each branch service line on the supply of the 
backflow protective device. 



^ervBce 

The service connection shall be not less than 1/2-inch 
diameter; no rigid pipe may be used. Flexible metal tubing is 
permitted. Fittings at either end shall be of a quick disconnect 
type not requiring any special tools or knowledge to install or 
remove. 



.1 

When it is evident that there exists, or may exist, a violation 
of these rules, the owner, operator, lessee, person in charge of 
the park, or any other person causing a violation shall cause it 
to be corrected immediately or disconnect the service 
connection and travel trailer drain connection from the 
respective park branch service line and sewer lateral. 



Bl 10.2 Drain Connections 

Travel trailer drain connections shall be of approved semi- 
rigid or flexible reinforced hose having smooth interior 
surfaces of not less than 3 inches inside diameter. Drain 
connections shall be equipped with a standard quick 
disconnect screw or clamp type fitting, not less in size than 
the outlet. Drain connections shall be gaslight and no longer 
than necessary to make the connection between the travel 
trailer outlet and the trap inlet on the site. 

Bill MAINTENANCE 

All devices or safeguards required by this appendix shall be 
maintained in good working order by the owner, operator, or 
lessee of the travel trailer park or his designated agent. 

B112 INDIVIDUAL TRAVEL TRAILERS 

Individual travel trailers located within previously 
constructed travel trailer parks shall be provided with a trailer 
trap in accord with 1003.5. 



TRAILER TRAP AND VENT 



APPROVED MATERIALS FOR TRAP AND VE^f^ 
{1) CAST IRON PIPE AND FITTINGS. 
(2) ABS OR PVC PLASTIC PIPE AND FITTINGS SCH. 40 
(NOTE: DO NOT MIX ABS AND PVC PIPE 
AND/OR FrmNGS.) 



r— 10" ABOVE TOP 

i_ OF TRAILER 



4"^ 4" SUPPORT OR 
STRAP TO TRAILER 

INSTALL 4° CLEANOUT 
FOR TRAILER CONNECTION 



4° CO. 

4° WYE AND 
1/8 BEND 




WYE AND 
1/8 BEND OR 
4" LONG SWEEP 



APPROVED SEWER PIPES: 

(1 ) CAST IRON SEWER PIPE 

(2) VITRIFIED CLAY SEWER PIPE 

(3) APPROVED PLASTIC PIPE AND FITTINGS (MIN. 
SDR 35 OR HEAVIER) 

(NOTE: FROM A POINT AT LEAST 3 FEET OUTSIDE 
THE EDGE OF THE TRAILER TO SEWAGE 
SYSTEM.) 



NOTE: D-2729 NOT APPROVED FOR ANY PPJRJ OF SYSTEM 



4° PIPE TO SANITARY SEWER OR TO SEPTIC SYSTEM 



4°P-TRAPAND 
4° CO. 



92 



Louisiana State Plumbing Code, 2000 edition© 



APPENDIX C 

MOBILE/MANUFACTURED HOMES AND 
MOBILE/MANUFACTURED HOME PARKS 

(APPENDIX C IS A REQUIREMENT OF THIS CODE) 



• 



ClOl PURPOSE, APPLICATION AND SCOPE 

With the exception of Section CI 12, the requirements set 
forth in this appendix shall apply specifically to all new 
mobile/manufactured home parks, and to additions to existing 
parks as herein defined, and are to provide minimum 
standards for sanitation and plumbing installation within 
these parks, for the accommodation, use and parking of 
mobile/manufactured homes. Plumbing installations in 
mobile/manufactured homes shall be installed in accordance 
with ANSI Al 19.2, Part II. 

C102 DEFINITIONS 

Definitions contained in Chapter 2 and in Section B102 of 
Appendix B shall also apply to this appendix, except where 
the following special definition shall apply: 

MOBILE/MANUFACTURED HOME - a vehicular, 
portable structure built on a chassis and designed to be used 
as a dwelling without a permanent foundation when 
connected to indicated utilities per ANSI Al 19.2. 

C103 GENERAL REGULATIONS 

C103.1 The general provisions of the Louisiana State 
Plumbing Code shall govern the installation of plumbing 
systems in mobile/manufactured home parks, except where 
special conditions or construction are specifically defined in 
this appendix. 

C103.2 Mobile/manufactured homes shall not hereafter be 
parked in any mobile/manufactured home park unless 
plumbing and sanitation facilities have been installed and 
maintained in conformity with these regulations. Every 
mobile/manufactured home shall provide a gastight and 
watertight connection for sewage disposal which shall be 
connected to an underground sewage collection system 
discharging into a public or private disposal system. 

C104 PLANS AND SPECIFICATIONS 

The owner or operator of every mobile/manufactured home 
park, or the plumbing contractor employed by him before 
providing areas of space for the use and accommodation of 
independent mobile/manufactured homes, shall make 
application for a permit (where such permit is required by 
state, parish, city or other local laws or ordinances) or 
regardless of whether or not an actual permit is required, shall 
file two sets of plans and specifications with the 
department(s) having jurisdiction for their review and 
approval. The plans and specifications shall be in detail as 
follows: 



1. A scaled plot plan of the park, indicating the spaces, 
area or portion of the park for the parking of 
mobile/manufactured homes. 

2. Size, location and specification of park drainage 
system. 

3. Size, location and specification of water supply lines. 

4. Size, location and layout of service building. (See 
Clio.) 

5. Size, location, specification and layout of the fire 
protection system, if applicable. 

6. A scaled layout of typical mobile/manufactured home 
sites. 

7. Applications/submittals shall bear the approval of the 
local enforcement agencies as to compliance with city 
or parish plumbing, zoning and health ordinances. 

8. Plumbing required by this appendix shall comply with 
all city, parish and state plumbing and health 
ordinances and regulations. 

9. The issuance of a permit (or an approval of a 
submittal) shall not constitute approval of any 
violation of this appendix or violation of any city or 
parish ordinance or regulation. 

10. An approved set of plans and specifications and a copy 
of the permit (or written approval of a submittal) shall 
be kept on the park premises until the final inspection 
has been made. 

C105 MATERIALS 

Unless otherwise provided for in this appendix, all piping 
fixtures or devices used in the installation of drainage and 
water supply systems for mobile/manufactured home parks, 
or parts thereof, shall conform to the quality and weights of 
materials required by the Louisiana State Plumbing Code. 

CI 06 GENERAL REGULATIONS 

Unless otherwise provided for in this appendix, all plumbing 
fixtures, piping, drains, appurtenances and appliances 
designed and used in a park drainage, water supply system 
and service connections shall be installed in conformance 
with the Louisiana State Plumbing Code. 

C107 PARK DRAINAGE SYSTEM 

C107.1 Minimum System 

C107.1.1 The main sewer and sewer laterals shall be 
installed in a separate trench not less than 5 ft (1524 mm) 
from the park water service or distribution system. (See 
608.3 and 608.4) 

C107.1.2 The minimum size of pipe in any 
mobile/manufactured home park drainage system shall be 
4 inches. 



Louisiana State Plumbing Code, 2000 edition® 



93 



C107.L3 Each mobile/manufactured home shall be 
considered as 15 fixture units in determining discharge 
requirements in the design of park drainage and sewage 
disposal systems. 

- C107J.4 Minimum grade for sewers shall be so designed 
that the flow will have a mean velocity of 2 ft per second 
(0.6096 m/s) when the pipe is flowing half full. 

C107.2 Discharge 

The discharge of a park drainage system shall be connected 
to a public sewer. Where a public sewer is not available, an 
approved individual or community sewage disposal system 
shall be installed, of a type that is acceptable and approved by 
the plumbing official or other law enforcement agency 
having jurisdiction over this regulation. [See Chapter XIII 
(Sewage Disposal), State of Louisiana Sanitary Code] 

C107.3 ManSioles and Cleanouts 

Manholes and/or cleanouts shall be provided as required in 
Chapter 7 of the Louisiana State Plumbing Code. Manholes 
and/or cleanouts shall be accessible and brought to grade. 

C107.4 InleHs 

Sewer inlets shall be 4-inch diameter and extend above grade 
3 to 6 inches (76 to 152 mm). Each inlet shall be provided 
with a gastight seal when connected to a 
mobile/manufactured home and have a gastight seal plug for 
use when not in service. 

C107.5 Unit Site Requirements 

€107.5.1 Each mobile/manufactured home site shall be 
provided with a trailer trap. Sewer laterals over 30 ft (9144 
mm) from the main park drainage sewer shall be properly 
vented and provided with a cleanout brought to grade. 

C107.5.2 To provide the shortest possible drain 
connection between the mobile/manufactured home outlet 
and drain inlet, all drain inlets shall terminate in the rear 
one-third of the mobile/manufactured home as placed on 
the site. 

C107.5.3 Drain connections shall slope continuously 
downward and form no traps. All pipe joints and 
connections shall be installed and maintained gastight and 
watertight. 

C107.5.4 No sewage, waste water, or any other effluent 
shall be allowed to be deposited on the surface of the 
ground. 

C107.6 Testing The System 

Upon completion and before covering, the park drainage 
system shall be subjected to a static water test and inspected 
by the plumbing inspection department. The water test shall 
be applied to the drainage system either in its entirety or in 
sections. If applied to the entire system, all openings in the 
piping shall be tightly closed, except the highest opening, and 
the system shall be filled with water to point of overflow. If 
the system is tested in sections, each opening shall be tightly 
plugged except the highest opening of the section under test. 



and each section shall be_filled with water, but no section 
shall be tested with less than a 10 ft head of water (30 kPa). 
In testing successive sections, at least the upper 10 ft (3048 
mm) of the next preceding section shall be tested so that no 
joint or pipe in the system shall have been submitted to a test 
of less than a 10 ft head of water (30 kPa). The water shall be 
kept in the system, or in the portion under test, for at least 15 
minutes before inspection starts; the system shall then be 
tight at all points. 

C108 WATER SUPPLY SYSTEM 

C108.1 Every mobile/manufactured home site shall be | 
provided with an individual branch service line delivering 
safe, pure and potable water. The outlet of the branch service 
line shall terminate on the left side of the site of the 
mobile/manufactured home. | 

C108,2 Water service lines to each mobile/manufactured home = 

site shall be sized to provide a minimum of 17 gpm (1.1 L/s) at 

the point of connection with the mobile/manufactured home = 

distribution system. The minimum size of branch service line 

to each site shall be 3/4 inch. 

• 
C108.4 A separate service shutoff valve shall be installed in 

each branch line. ^ 

C108.5 The service connection shall be not less than 1/2-inch 
diameter; no rigid pipe may be used. Flexible metal tubing is 
permitted. Fittings at either end shall be of a quick disconnect 
tyj)e not requiring any special tools or knowledge to install or 
remove. 

C108.6 The water supply system shall be designed to provide 
a minimum of 150 gallons (568 L) per day for each 
mobile/manufactured home, plus such additional volume as 
may be required for fire protection of the park, service 
buildings and other community facilities. 

€109 MOBILE/MANUFACTURED 
HOME CONNECTIONS 

C109.1 When it is evident that there exists, or may exist, a 
violation of these rules, the owner, operator, lessee, person in 
charge of the park or any other person causing a violation 
shall cause it to be corrected immediately or disconnect the 
service connections and mobile/manufactured home drain 
connection from the respective park branch service line and 
sewer lateral. 

C109.2 Mobile/manufactured home drain connections shall 
be of approved semi-rigid pipe having smooth interior 
surfaces of not less than 3-inch inside diameter. Drain 
connections shall be equipped with a standard quick 
disconnect screw, clamp type fitting or solvent welder, not 
less in size than the outlet. Drain connections shall be 
gastight and no longer than necessary to make the connection 
between the mobile/manufactured home outlet and the inlet 
on the site. 



94 



Louisiana State Plumbing Code, 2000 edition® 



Clio SERVICE BUILDINGS 

I Each mobile/manufactured home park serving travel trailers 
I shall have at least one service building to provide minimum 
= sanitation and laundry facilities in accord with B105. 

* cm MAINTENANCE 



C112 INDIVIDUAL MOBILE/ 
MANUFACTURED HOMES 

Individual mobile/manufactured homes located within 
previously constructed mobile/manufactured home parks 
shall be provided with a trailer trap in accord with 1003.5. 



All devices or safeguards required by this appendix shall be 
maintained in good working order by the owner, operator, or 
i lessee of the mobile/manufactured home park or his 
designated agent. 



TRAILER TRAP AND VENT 



WYE AND 
1/8 BEND OR 
4" LONG SWEEP 



4" CO 

4' WYE AND 
1/8 BEND 



10" ABOVE TOP 
OF TRAILER 



4"x 4" SUPPORT OR 
STRAP TO TRAILER 

INSTALL 4" CLEANOUT 
FOR TRAILER CONNECTION 

INSTALL 3" MALE 
ADAPTOR IN CO. 
2^ ABOVE GROUND 




APPROVED MATERIALS FOR TRAP AND VENT 

(1) CAST IRON PIPE AND FITTINGS. 

(2) ABS OR PVC PLASTIC PIPE AND FITTINGS SCH. 40 

(NOTE: DO NOT MIX ABS AND PVC PIPE 
AND/OR FITTINGS.) 



APPROVED SEWER PIPES: 

(1 ) CAST IRON SEWER PIPE 

(2) VITRIFIED CLAY SEWER PIPE 

(3) APPROVED PLASTIC PIPE AND FITTINGS (MIN. 
SDR 35 OR HEAVIER) 

(NOTE: FROM A POINT AT LEAST 3 FEET OUTSIDE 
THE EDGE OF THE TRAILER TO SEWAGE 
SYSTEM.) 



NOTE: D-2729 NOT APPROVED FOR ANY PART OF SYSTEM 



4" PIPE TO SANITARY SEWE^OR TO SEPTIC SYSTEM 



4-P-TRAPAND 
4" CO. 



Louisiana State Plumbing Code, 2000 edition© 



95 



96 Louisiana State Plumbing Code, 2000 edition© 



APPENDIX D 

CROSS CONNECTION CONTROL 

(APPENDIX D IS A REQUIREMENT OF THIS CODE) 



DlOl The purpose of this Appendix is to provide for the 
protection of the public from the possibility of contamination 
or pollution by isolating such contaminants or pollutants 
which could backflow or back-siphon into a potable water 
supply; to promote the elimination or control of existing 
cross-connections, actual or potential, between potable water 
supplies and non-potable systems/sources; and to promote the 
maintenance of a continuing program of cross-connection 
control in the State of Louisiana. 

D102 DEFINITIONS Definitions contained in Chapter 2 
shall also apply to this appendix except where the following 
special definitions shall apply: 

AIR GAP (WATER DISTRIBUTION) - in a water supply 
system, the unobstructed vertical distance through the free 
atmosphere between the lowest opening from any pipe or 
faucet supplying water to a tank, plumbing fixture, or other 
device and the flood-level rim of the receptacle. 

ATMOSPHERIC VACUUM BREAKER - a device which 
prevents back- siphonage by creating an atmospheric vent 
when there is either a negative pressure or sub-atmospheric 
pressure in a water system. 

BACKFLOW - the flow of water or other liquids, mixtures, 
or substances into the distribution pipes of a potable water 
supply from any source other than its intended source. (See 
Back- Pressure Backflow and Back-Siphonage Backflow.) 

BACK-PRESSURE BACKFLOW - a condition which 
occurs when the downstream pressure is higher than the 
supply pressure causing a reversal of the normal direction of 
flow. 

BACK-PRESSURE BACKFLOW PREVENTER - a 

device to prevent backflow due to a general condition in 
which the pressure in the system bjecomes greater than the 
supply pressure, the system being above atmospheric 
pressure. (See also Double Check Valve Assembly, Double 
Check Valve with Intermediate Atmospheric Vent, and 
Reduced Pressure Principle Backflow Preventer). 

BACKFLOW PREVENTER - a device to prevent 
backflow. As there are two conditions of backflow, the 
device should be identified by the conditions which it is 
designed to prevent. (See Back-Pressure Backflow Preventer, 
Reduced Pressure Principle Backflow Preventer, Back- 
Siphonage Backflow Preventer). 

BACK-SIPHONAGE BACKFLOW - a reversal of the 
normal direction of flow in the pipeline due to a negative 



pressure (vacuum) being created in the supply line with the 
backflow source subject to atmospheric pressure. 

BACK-SIPHONAGE BACKFLOW PREVENTER, 
GENERAL - a device or combination of devices for 
preventing back-siphonage backflow in a water supply line. 

BAROMETRIC LOOP - a fabricated piping arrangement 
rising at least 35 feet at its topmost point above the highest 
fixture it supplies. It is utilized in water supply systems to 
protect against back-siphonage. 

BY-PASS - any system of piping or other arrangement 
whereby the water may be diverted around any part or 
portion of a water supply or treatment facility including, but 
not limited to, around an installed backflow preventer. 

COMMERCIAL DISHWASHER - a mechanical 
dishwasher that is used in other than domestic applications. 

CONTAINMENT - a method of backflow prevention which 
requires a backflow prevention device or method on the water 
service pipe to isolate the customer from the water main. 

CONTAMINATION - the introduction into water of 
microorganisms, chemicals, toxic substances, wastes or 
wastewater that makes the water unfit for its intended use. 

CROSS CONNECTION - any connection or arrangement 
by means of which contaminants of any kind can be caused to 
enter the potable water supply system. 

DEGREE OF HAZARD - the term is derived from an 
evaluation of the potential risk to public health and the 
adverse effect of the hazard upon the potable water. 

DOUBLE CHECK VALVE ASSEMBLY - an assembly of 
two (2) independently operating spring loaded check valves 
with tightly closing shut off valves on each side of the check 
valves, plus properly located test cocks for the testing of each 
check valve. 

DOUBLE CHECK VALVE WITH INTERMEDIATE 
ATMOSPHERIC VENT - a device having two (2) spring 
loaded check valves separated by an atmospheric vent 
chamber. 

DUAL CHECK VALVE - two (2) spring loaded, 
independently operating check valves without tightly closing 
shut-off valves and test cocks. Generally employed 
immediately down stream of the water meter. Not an 
approved backflow prevention device. 



Louisiana State Plumbing Code, 2000 edition® 



97 



FIXTURE ISOLATION - a method of backflow prevention 
in which a backflow preventer is located to correct a cross- 
connection at an in-plant location rather than at a water 
service pipe. 

HOSE BIBB VACUUM BREAKER - a device which is 
permanently attached to a hose bibb and which acts as an 
atmospheric vacuum breaker. 



- a meter serving multiple residential 
dwelling units. Individual units may or may not be sub- 
metered. 



D103 AIR GAPS The provision of air gaps shall be required 
for backflow prevention in any and all cases where such a 
measure is the most practical that can be employed. The 
"minimum required air gap (water distribution)*' shall be in 
accord with ASME A 112.1.2.' 



Note: 



1 . For informational purposes only, ASME A 1 12.1.2 generally requires 
a minimum required air gap equal to two limes the effective opening 
(or 3 times the effective opening if affected by a nearby wall). 
Compliance shall be strictly determined by the provisions contained 
within the standard itself. 



water having bacteriological, 
physical, radiological and chemical qualities that make it safe 
and suitable for human drinking, cooking and washing uses. 



a publicly owned or 
privately owned water supply system which purveys potable 
water. 

PRESSURE VACUUM BREAKER - a device containing 
one or two independently operated spring loaded check 
valves and an independently operated spring loaded air inlet 
valve located on the discharge side of the check or checks. 
Device includes tightly closing shut-off valves on each side 
of the check valves and properly located test cocks for the 
testing of the check valve(s). 



- a particular type of water 
supply system intended to provide potable water to the public 
having at least fifteen service connections or regularly 
serving an average of at least twenty-five individuals daily at 
least sixty days out of the year. 



CONTAINMENT PRACTICES.- Backflow 
prevention methods or devices shall be utilized as directed by 
the Plumbing Official to isolate specific water supply system 
customers from the water supply system's mains when such 
action is deemed necessary to protect the water supply system 
against potential contamination caused by backflow of water 
from that part of the water system owned and maintained by 
the customer (e.g., the piping downstream of the water meter, 
if provided). 

D104.2 As a minimum, the following types of devices or 
methods shall be installed and maintained by water supply 
system customers immediately downstream of the water 
meter (if provided) or on the water service pipe prior to any 
branch line or connections serving the listed customer types 
and categories: 



an assembly consisting of two (2) 
independently operating approved check valves with an 
automatically operating differential relief valve located 
between the two (2) check valves, tightly closing shut-off 
valves on each side of the check valves plus properly located 
test cocks for the testing of the check valves and relief valves. 

WATER SERVICE PIPE (or SERVICE CONNECTION) - 
the pipe from the water main and/or water meter, water 
supply system or other approved source of water supply, to 
the building or structure served. 



a person who owns or operates a 
I water supply system including, but not limited to, a person 
I who owns or operates a public water system. 



WATER SUPPLY SYSTEM - the system of pipes or other 
constructed conveyances, structures and facilities through 
which water is obtained, treated to make it potable (if 
necessary) and then distributed (with or without charge) for 
human drinking, cooking, washing or other use. 



• 



98 



Louisiana State Plumbing Code, 2000 edition© 



Table D1 041 



Table D1 051. 2 



Air Gap 
1 



Fire Protection/Sprinkler iSystem utilizing non- 
potable water as an alternative or primary 
source of water 



Reduced Pressure Principle Backflow jPreveiiter 

1. Hospitals, Out-PatientiSurgical Facilities, 
Renal Dialysis Facilities, jVeteri nary Clinics 

2. Funeral Homes, Mortuaries 

3. Car Wash Systems 

4. Sewage Facilities 

5. Chemical or Petroleum Processing Plants 

6. Animal/Poultry Feedlots or Brooding Facilities 

7. Meat Processing Plants 

8. Metal Plating Plants \ ■ 

9. Food Processing Plants, Beverage Processing 
Plants ' 

10. Fire Protection/Sprinkler Systems using 
antifreeze in such system 

11. Marinas/Docks 

12. Radiator Shops 

13. Commercial Pesticide/Herbicide Applicators 

14. Photo/X-ray/Film Processing Laboratories 

Double Check Valve Assembly 

1 . Fire Protection/Sprinkler Systems 

2. Multiple Residential Dwelling Units served by 
a master meter. 

3. Multistoried Office/Commercial Buildings 
(over 3 floors) 

4. Jails, Prisons, and Other Places of Detention or 
Incarceration 



Note: 
1. 



Other Containment Practices - Table D104 is not inclusive of all 
potential contamination sources whichi rnay need containment 
protection. For potential contamination sources not listed in this 
table, backflow prevention methods, or deivices shall be utilized as 
directed by the Plumbing Official [or by the water supplier for those 
devices which may be associated with the water supplier's own water 
supply system located on public property or otherwise under the 
complete control of the water supplier (e.g., water meter and the 
piping upstream of the water meter, ifprovided)]. 



1 FIXTURE ISOLATIONi! PRACTICES Water 
supply system customers shall provide and maintain 
backflow prevention methods or devices as directed by the 
Plumbing Official within that part of the water system owned 
and maintained by the customer (e.^., the piping downstream 
of the water meter, if provided, oi" downstream from any 
containment device) to protect the on-site users of the water 
system against potential contamination due to backflow. 



E As a minimum, the following types of devices or 
methods shall be employed as appropriate for the following 
points of usage: 



• 



Air Gap 




1. 


Cooling Towers 


2. . 


Chemical Tanks 


3. 


Commercial Dishwashers in commercial 




establishments 


4. 


Ornamental Fountains 


5. 


Swimming Pools, Spas, Hot Tubs 


6. 


Baptismal Fonts 


7. 


Animal Watering Troughs 


8. 


Agricultural Chemical Mixing Tanks 


9. 


Water Hauling Tanks 


Reduced Pressure Principle Backflow Preventers 


1. 


Commercial Boilers 


2. 


Air Conditioning, Chilled Water Systems 


3. 


Air Conditioning, Condenser Water Systems 


4. ■ 


Pot-type Chemical Feeders 


5. 


Lawn Sprinklers with Fertilizer Injection 


6. 


Photo/X-ray/Film Processing Equipment 



Double Check Valve Assembly 

1. Food Processing Steam Kettles 

2. Individual Travel Trailer Sites 



Atmospheric or Pressure Type Vacuum Breakers 


1. 


Laboratory and/or Medical Aspirators 


2. 


Flushing Rim Bedpan Washers 


3. 


Garbage Can Washers 


4. 


Laboratory or Other Sinks with threaded or 




serrated nozzles 


5: ■ 


Flushometer Operated Fixtures 


6. 


Commercial Washing Machines 


7. 


Lawn Sprinklers 


8. 


Hose Bibbs 


9. 


Commercial Dishwashers in commercial 




establishments 



Notes: 

1. 



Louisiana State Plumbing Code, 2000 edition® 



|See Tables G 104.6 and G 104.7 for fixture isolation practices in 
hospital plumbing systems. 

Other Fixture Isolation Practices - Table D 105 is not inclusive of all 
potential contamination sources which may need fixture isolation 
protection. For potential contamination sources not listed in this 
table, backflow prevention methods or devices shall be utilized as 
directed by the Plumbing Official. 



D106 RESPONSIBILITY OF WATER SUPPLIERS 

Water suppliers shall be responsible to insure the protection of 
the water supply system from potential contamination from 
certain of their customers through containment practices as 
prescribed by this Chapter or as otherwise directed by the State 
Health Officer. 

D107 BYPASSES 

D107.1 All bypasses shall have the same level of backflow 
protection as the main water supply line. 

D108 MAINTENANCE/FIELD TESTING 

D108.1 Types of Backflow Preventers to be Field Tested 
D108.1.1 To ensure that installed backflow preventers 
provide continuing backflow protection, the following 
types of backflow preventers shall be checked and field 
tested in accordance with the frequency established in 

99 



D 108.2 by a Backflow Prevention Assembly Tester who 
meets ASSE 5000 Professional Qualification Standard, or 
other individuals holding a testing certificate from a 
nationally recognized backflow certification organization 
approved by the Plumbing Official [or found acceptable to 
the water supplier for those devices which may be 
associated with the water supplier's own water supply 
system located on public property or otherwise under the 
complete control of the water supplier (e.g., water meter 
and the piping upstream of the water meter, if provided)]: 

(a) double check valve assemblies; 

(b) reduced pressure principle backflow preventers; 

(c) pressure type vacuum breakers; 

(d) air gaps on high hazard applications; and 

(e) as otherwise specified by the Plumbing Official (or 
by the water supplier for those backflow preventers 
located on public property or otherwise under the 
complete control of the water supplier (e.g., water 
meter and piping upstream of the water meter, if 
provided). 

It is recommended that other types of backflow prevention 
devices be visually checked periodically. 



D1083 Owner Respoosibilities : . 

D108,3,l It shall be the duty of the owner of the backflow 
preventer to see that these tests are made in a timely 
manner in accord with the frequency of field testing 
specified in D108.2. 

D108.3.2 The owner shall notify the Plumbing Official 
and/or water supplier in advance when the tests are to be 
undertaken so that the Plumbing Official and/or water 
supplier may witness the tests if so desired. 

D108.3o3 All tests, repairs, overhauls or replacements 
shall be at the expense of the owner of the backflow 
preventer. 

D108.3.4 All records of such tests, repairs, overhauls or 
replacements shall be kept by the owner of the backflow 
preventer for at least 5 years and, upon request, shall be 
made available to the Plumbing Official, water supplier, 
and/or the State Health Officer. 



1,1.2 Any backflow preventer in D108.1.1 which is 
found defective shall be repaired by a duly authorized 
water supply protection specialist licensed by the 
Louisiana State Plumbing Board pursuant to LSA - R.S. 
37:1361 et seq and its implementing regulations (LAC 
46:LV.101 et seq) or, for those backflow preventers 
located on public property or otherwise under the 
complete control of the water supplier {e.g., water meter 
and the piping upstream of the water meter, if provided), 
by a Backflow Prevention Assembly Repairer who meets 
ASSE 5030 Professional Qualification Standard or other 
individuals found acceptable to the water supplier. 



The backflow prevention devices specified in D108.1.1 shall 
be field tested: 

(a) upon installation; 

(b) when cleaned, repaired, or overhauled; 

(c) when relocated; 

(d) annually; and 

(e) as required by the Plumbing Official (or by the water 
supplier for those backflow preventers located on 
public property or otherwise under the complete control 
of the water supplier {e.g., water meter and piping 
upstream of the water meter, if provided). 



100 



Louisiana State Plumbing Code, 2000 edition® 



APPENDIX E 

PRIVATE SEWAGE DISPOSAL 

(APPENDIX E IS A REQUIREMENT OF THIS CODE) 



E101 General 

Refer to Chapter XIII (Sewage Disposal) of the State of 
Louisiana Sanitary Code for applicable sewage disposal 
regulations. 



Louisiana State Plumbing Code, 2000 edition® 101 



• 



102 Louisiana State Plumbing Code. 2000 edition© 



APPENDIX F 

SIZING OF WATER PIPING SYSTEM 



(APPENDIX F IS FOR INFORMATIONAL PURPOSES ONLY) 



FlOl GENERAL 

FlOl.l Scope 

FlOl.1.1 This appendix outlines a procedure for sizing a 
water piping system. This design procedure is based on 
the minimum static pressure available from the supply 
source, the head charges in the system due to friction and 
elevation, and the rates of flow necessary for operation of 
various fixtures. 

FlOl.1.2 Because of the variable conditions encountered 
in hydraulic design, it is impractical to specify definite and 
detailed rules for sizing of the water piping system. 
Accordingly, other sizing or design methods conforming 
to good engineering practice standards are acceptable 
alternates to that presented herein. 

F102 INFORMATION REQUIRED 

F102.1 Preliminary 

Obtain the necessary information regarding the minimum 
daily static service pressure in the area where the building is 
to be located. If the building supply is to be metered, obtain 
information regarding friction loss relative to the rate of flow 
for meters in the range of sizes likely to be used. Friction loss 
data can be obtained from most manufacturers of water 
meters. 

F102.2 Demand Load 

F102.2.1 Estimate the supply demand of the building main 
and the principal branches and risers of the system by 
totaling the corresponding demand from the applicable 
part of Table F102. 

F102.2.2 Estimate continuous supply demands in gallons 
per minute for lawn sprinklers, air conditioners, etc., and 
add the sum to the total demand for fixtures. The result is 
the estimated supply demand for the building supply. 

F103 SELECTION OF PIPE SIZE 

F103.1 General 

Decide what is the desirable minimum residual pressure that 
should be maintained at the highest fixture in the supply 
system. If the highest group of fixtures contains flush valves, 
the pressure for the group should be not less than 15 psi 
(103.4 kPa) flowing. For flush tank supplies, the available 
pressure may not be less than 8 psi (55.2 kPa) flowing, except 
blowout action fixtures may not be less than 25 psi (172.4 
kPa) flowing. 

F103.2 Pipe Sizing 

F103.2.1 Pipe sizes may be selected according to the 

following procedure, except that: the sizes selected shall be 

Louisiana State Plumbing Code, 2000 edition© 



not less than the minimum required by the Standard 
Plumbing Code. 

F103.2.2 This water pipe sizing procedure is based on a 
system of pressure requirements and losses, the sum of 
which must not exceed the minimum pressure available at 
the supply source. These pressures are as follows: 

1. Pressure required at fixture to produce required 
flow. See 607.3 and 607.4. 

2. Static pressure loss or gain (due to head) is 
computed at 0.433 psi per foot (9.8 kPa/m) of 
elevation change. Example: Assume that the highest 
fixture supply outlet is 20 ft (6,1 m) above or below 
the supply source. This produces a static pressure 
differential of 20 ft x 0.433 psi/ft (6.1 m x 9.8 
kPa/m) and an 8.66 psi (59.8 kPa) loss. 

3. Loss through water meter. The friction or pressure 
loss can be obtained from meter manufacturers. 

4. Loss through taps in water main. See Table F103A. 

5. Losses through special devices such as filters, 
softeners, backflow preventers, and pressure 
regulators. These values must be obtained from the 
manufacturers. 

6. Loss through valves and fittings, see Tables F103B 
and F103C. Losses for these items are calculated by 
converting to equivalent length of piping and adding 
to the total pipe length. 

7. Loss due to pipe friction can be calculated when the 
pipe size, the pipe length and the flow through the 
pipe are known. With these three items, the friction 
loss can be determined using Figures F103A through 
F103D. When using charts, use pipe inside diameter. 
For piping flow charts not included, use 
manufacturers' tables and velocity 
recommendations. 

Fl 03.3 Example 

Note: For the purposes of this example the following metric 

conversions are applicable: 

1 cfm = 0.4719 L/s 1 ft2 = 0.0929 m2 

1 degree = 0.0175 rad 1 psi = 6.895 kPa 

1 in = 25.4 mm 1 gpm = 0.0631 L/s 

Problem: What size copper water pipe, service and 
distribution will be required to serve a two story factory 
building having on each floor, back-to-back, two toilet rooms 
each equipped with hot and cold water? The highest fixture is 
21 ft above the street main which is tapped with a 2-inch 
corporation cock at which point the minimum pressure is 55 
psi. In the building basement a 2-inch meter and 3-inch 
reduced pressure zone backflow preventer with a maximum 
pressure drop of 9 psi are to be installed. The system is 
shown by the Example Diagram. To be determined are the 
pipe sizes for the service main and the cold and hot water 
distribution pipes. 

103 



A Tabular Arrangement such as shown in Table 
FIOIA should first be constructed. The steps to be followed 
in solving the problem are indicated by the Tabular 
Arrangement itself as they are in sequence, columns 1 
through 10 and lines a through 1. 

Step 1, Column 1: Divide the system into sections breaking 
at major changes in elevation or where branches lead to 
fixture groups. After point B (see figure F103) separate 
consideration will be given to the hot and cold water piping. 
Enter the sections to be considered in the service and cold 
water piping in Column 1 of the Tabular Arrangement. 
Column 3: According to the method given in F102.2, 
determine the gpm of flow to be expected in each section of 
the system. These flows range from 28.6 to 108 gpm. 



Step 3, Line i: The sum of (lines b through h) the pressure 
requirements and losses which affect the overall system is 
entered on this line. 

Step 4, Line j: Subtract line i from line a. This gives the 
pressure which remains available from overcoming friction 
losses in the system. This figure is a guide to the pipe size 
which is chosen for each section, as the total friction losses 
through the longest run of pipe. 

EXCEPTION; When the main is above the highest fixture, 
the resulting psi must be considered a pressure gain (static 
head gain) and omitted from the sums of lines b through h 
and added to line j. 

Step 5, Column 4: Enter the length of each section from the 
main to the end of the longest run (at Point E). 



HOT WATER 

COLD WATER 

M = METER 

BFP = BACK FLOW PREVENTER 

/* =90° ELBOW 

I- ="r 

M = VALVE 



FLOOR 2 



294 fu, 108 gpm 



1 



MAIN 



132 fu, 
77 gpm ■ 



FLOOR 1 
264 fu. 
104.5 gpm 



M BFP 



54" 



150' 



-132fu, 779pm 



hf 



E 
4 

^ 

^ 12 fu, 28.6 gpm E' 



-132fu, 77 gpm 



^ 

12 fu. 28.6 gpm p 



-24fu, 38 gpm 



WATER HEATER 

^!y^^ 



Figure F103 
Example — Sizing 

Step 2, Line a: Enter the minimum pressure available at the 

main source of supply in Column 2. This is 55 psi. 

Line b: Determine from 607.4 the highest pressure required 

for the fixtures on system, which is 15 psi, to operate a 

flushometer valve. 

Line c: Determine the pressure loss for the meter size given 

or assumed. The total water flow from the main through the 

service as determined in step 1 will serve to aid in the meter 

selected. 

Line d: Select from Table F103A and enter the pressure loss 

for the tap size given or assumed. 

Line e: Determine the difference in elevation between the 

main or source of supply and the highest fixture on the 

system and multiply this figure, expressed in feet, by 0.43 

psi. Enter the resulting psi product on Line e. 

Line f, g, h: The pressure losses through filters, backflow 

preventers or other special fixtures must be obtained from the 

manufacturer or estimated and entered on these lines. 



104 



Step 6, Column 5: Select a trial pipe size. A rule of thumb is 
that size will become progressively smaller as the system 
extends farther from the main source of supply. (Trial pipe 
size may be arrived at by the following formula:) 
PSI = j X 100/Total pipe length 

EXAMPLE: PSI = 9.36 x 100/254 = 3.69 

From main to most remote outlet-Check applicable graph 

for size for this PSI and GPM 

Step 7, Column 6: Select from Table F103B or F103C the 
equivalent lengths for the trial pipe size of fittings and valves 
on the section. Enter the sum for each section in Column 6. 
(The number of fittings to be used in the installation of this 
piping must be an estimate.) 

Step 8, Column 7: Add the figures from Column 4 and 
Column 6, and enter in Column 7. Express the sum in 100s of 
feet. 

Step 9, Column 8: Select from the applicable figure (F103A' 
through F103D) the friction loss per 100 feet of pipe for the 
gpm flow in a section (Column 3) and trial pipe size (Column 
5). 

Step 10, Column 9: Multiply the figures in Columns 7 and 8 
for each section and enter in Column 9. 

Step 11, Line k: Enter the sum of the values in Column 9. 
Step 12, Line 1: Subtract Line k from Line j and enter in 
Column 10. 

The result should always be a positive or plus figure. If it is 
not, it is necessary to repeat the operation utilizing Columns, 
5, 6, 8 and 9 until a balance or near balance is obtained. If the 
difference between lines j and k is positive and large, it is an 
indication that the pipe sizes are too large and may, therefore, 
be reduced thus saving materials. In such a case, the 
operations utilizing Columns 5, 6, 8 and 9 should again be 
repeated. 

Answer: The final figures entered in Column 5 become the 
Louisiana State Plumbing Code, 2000 edition® 



design pipe size for the respective sections. Repeating this 
operation a second time using the same sketch but 
considering the demand for hot water, it is possible to size the 
hot water distribution piping. This has been worked up as a 
part of the overall problem in the Tabular Arrangement used 
for sizing the service and cold water distribution piping. It 
should be noted that consideration must be given the pressure 
losses from the street main to the water heater (section AB) in 
determining the hot water pipe sizes. 



Louisiana State Plumbing Code, 2000 edition© 105 



Column 



Table F101A 
Recommended Tabular Arrangement for Use in Solving Pipe Sizing Problems 



1 


2 


3 


4 


5 


6 


7 


8 


9 


10 












Equiva- 


Total 


Friction 


Friction 


Excess 












lent 


equiva- 


loss per 


Doss In 


pressure 












length 


lent 


100' of 


equiva- 


over 












of 


length 


trial 


lent 


friction 




Lbs. per 


Gal. per 


Length 


Trial 


fKtIngs 


C0L4 


size 


length 


losses 




square 


min. 


of 


pipe 


and 


and 


pipe 


col. 8 » 


(psi) 




Inch 


through 


section 


size 


valves 


coL6 


(psI) 


col. 7 




Description 


(psi) 


section 


(«) 


(In) 


(ft) 


(100 ft) 




(psI) 





Line 



e 

f 


Seivite and cold 
water distribulion 


g 

h 


pping 
(Note 1) 



Minimum pressure available at nein 55.00 

Highest pressure required al a fixture 

(Section 607.4) 15.00 

Meter loss 2" meter 11.00 

Tap in main loss 2' lap (Table F103A) i 61 

Static head loss 21x0.43 psi 9.03 

Special fixlure loss bacMlow preventer 9.00 

Special fixture loss -filter 0.00 

Special fixture loss -Other O.O) 

Total overall tosses and requiren«nts 

(sum ol lines b through h) 45.64 

Pressure available to overcome pipe frictnn 

(line a minus lines b to h) 9.36 

FU . 

AB 294 " 

BC 264 

CD 132 

CF 132 

DE 132 



Designation 

Pipe section (from diagram) 

Cold water distribulion piping 



108.0 


54 


21/2 


12 


0.66 


3.3 


2.38 


10&0 


8 


21/2 


2.5 


0.10S 


3.2 


0.34 


77.0 


13 


21/2 


8 


Oil 


1.9 


0.40 


77.0 


ISO 


21/2 


12 


1.62 


1.9 


3.08 


77.0 


ISO 


21/2 


14.S 


1.645 


1.9 


3.12 



It Total pipe friction losses (cold) 
I Difference (line j minus line k) 



6.24 



9.36 



654 



3.12 



Pipe section (from 
diagram) 
Hot virater Distri- 
butnn Piping 



A' B 294 

B'C 24 

CO' 12 

CP(Nrte2) 12 

D'E'(Nole2) 12 



108.0 


54 


21/2 


9.6 


0.64 


3.3 


2.1 


38.0 


8 


2 


9.0 


0.17 


1.4 


0.24 


28.6 


13 


11/2 


5 


0.18 


3.2 


058 


28.6 


150 


11/2 


14 


1.64 


3.2 


525 


28.6 


150 


11/2 


7 


1.57 


3.2 


5.02 



k Total pipe frictbn losses (hot) 
I Difference (line j minus fine k) 



9J6 



7.94 



1.42 



1 psi = 6.895 kPa 
1 gpm = 0.0631 Us 
1 ft= 305 mm 
1 in = 25.4 mm 
Notes: 

1 . To be considered as pressure gain for fixtures below main (consider separately omit from "i" and add to "j"). 

2. Consider separately, in l< use C-F only if greater loss than above. 



106 



Louisiana State Plumbing Code, 2000 edition© 



Table F101B 
Load Values Assigned to Fixtures^ 



• 



• 



Fixture 



Bathroom group 

Bathroom group 

Bathtub 

Bathtub 

Bidet 

Combination fixture 

Dishwashing nnachine 

Drinking fountain 

Kitchen sink 

Kitchen sink 

Laundry trays (1 to 3) 

Lavatory 

Lavatory 

Service sink 

Shower head 

Shower head 

Urinal 

Urinal 

Urinal 

Washing machine (8 lbs.) 

Washing machine (8 lbs.) 

Washing machine (15 lbs.) 

Water closet 

Water closet 

Water closet 

Water closet 

Water closet 





Type of Supply 


Occupancy 


Control 


Private 


Flush tank 


Private 


Flush valve 


Private 


Faucet 


Public 


Faucet 


Private 


Faucet 


Private 


Faucet 


Private 


Automatic 


Offices, etc. 


3/8" valve 


Private 


Faucet 


Hotel, Restaurant 


Faucet 


Private 


Faucet 


Private 


Faucet 


Public 


Faucet 


Offices, etc. 


Faucet 


,Pub)ic 


Mixing valve 


Private 


Mixing valve 


Public 


1" flush valve. 


Public 


3/4" flush valve 


Public 


Flush lank 


Private 


Automatic 


Public 


Automatic 


Public 


Automatic 


Private 


Rush valve 


Private 


Flush tank 


Public 


Flush valve 


Public 


Flush valve 


Public or.Private 


Flushometer Tank 



Load Values, In Water 
Supply Fixture Units 



Cold 


Hot 


Total 


2.7 


1.5 


3.6 


6.0 


3.0 


8.0 


1.0 


1.0 


■ 14 


3.0 


3.0 


4.0 


1.5 


1.5 


2.0 


2.25 


2.25 


3.0 




1.4 


1,4 


0.25 




0.25 


1.0 


1.0 


1.4 


3.0 


3.0 


4.0 


1.0 


1.0 


1.4 


0.5 


0.5 


0.7 


1.5 


1.5 


2.0 


2.25 


2.25 


3.0 


3.0 


3.0 


4.0 


1.0 


1.0 


1.4 


10.0 




10.0 


5.0 




5.0 


3.0 




3.0 


1.0 


1.0 


1.4 


2.25 


2.25 


3.0 


3.0 


3.0 


4.0 


6.0 




6.0 


2.2 




2.2 


10.0 




10.0 


5.0 




5.0 


2.0 




2.0 



Note: 

1 . For fixtures not listed, loads should be assumed by comparing the fixture to one listed using water in similar quantities and at similar rates. 
The assigned loads for fixtures with both hot and cold water supplies are given for separate hot and cold water loads and for total load, the 
separate hot and cold water loads being three-fourths of the total load for the fixture in each case. 



Louisiana State Plumbing Code, 2000 edition® 



107 



Table F1 02 
Table for Estiimatiing Demand 





Supply Systems Piredominantly for 


Supply Systems Predominantly for 




Flush Tanks 




Flush Valves 




LoadI 


Demand 


Load 


Demand 


(Water Supply 


(Gallons per (Cubic Feet 


(Water Supply 


(Gallons per 


(Cubic Feet 


Foxtuce UlniBts) 


Minute) per Minute) 


Fixture Units) 


Minute) 


per Minute) 


1 


3.0 0.04104 








2 


5.0 0.0684 








3 


6.5 0.86892 








4 


8.0 1.06944 








5 


9.4 1.256592 


5 


15.0 


2.0052 


6 


10.7 1.430376 


6 


17.4 


2.326032 


7 


11.8 1.577424 


7 


19.8 


2.646364 


8 


12.8 1.711104 


8 


22.2 


2.967696 


9 


13.7 1.831416 


9 


24.6 


3.288528 


10 


14.6 1.951728 


10 


27.0 


3.60936 


11 


15.4 2.058672 


11 


27.8 


3.716304 


12 


16.0 2.13888 


12 


28.6 


3.823248 


13 


16.5 2.20572 


13 


29.4 


3.930192 


14 


17.0 2.27256 


14 


30.2 


4.037136 


15 


17.5 2.3394 


15 


31.0 


4.14408 


16 


18.0 2.90624 


16 


31.8 


4.241024 


17 


18.4 2.459712 


17 


32.6 


4.357968 


18 


18.8 2.513184 


18 


33.4 


4.464912 


19 


19.2 2.566656 


19 


34.2 


4.571856 


20 


19.6 2.620128 


20 


35.0 


4.6788 


25 


21.5 2.87412 


25 


38.0 


5.07984 • 


30 


23.3 3.114744 


30 


42.0 


5.61356 


35 


24.9 3.328632 


35 


44.0 


5.88192 


40 


26.3 3.515784 


40 


46.0 


6.14928 


45 


27.7 3.702936 


45 


48.0 


6.41664 


50 


29.1 3.890088 


50 


50.0 


6.684 


60 


32.0 4.27776 


60 


54.0 


7.21872 


70 


35.0 4.6788 


70 


58.0 


7.75344 


80 


38.0 5.07984 


80 


61.2 


8.181216 


90 


41.0 5.48088 


90 


64.3 


8.595624 


100 


43.5 5.81508 


100 


67.5 


9.0234 


120 


48.0 6.41664 


120 


73.0 


9.75864 


140 


52.5 7.0182 


140 


77.0 


10.29336 


160 


57.0 7.61976 


160 


81.0 


10.82808 


180 


61.0 8.15448 


180 


85.5 


11.42964 


200 


65.0 8.6892 


200 


90.0 


12.0312 


225 


70.0 9.3576 


225 


95.5 


12.76644 


250 


75.0 10.0260 


250 


ioi.o 


13.50168 


275 


80.0 10.6944 


275 


104.5 


13.96956 


300 


85.0 11.3628 


300 


108.0 


14.43744 


400 


105.0 14.0364 


400 


127.0 


16.97736 


500 


124.0 16.57632 


500 


143.0 


19.11624 


750 


170.0 22.7256 


750 


177.0 


23.66136 


1000 


208.0 27.80544 


1000 


208.0 


27.80544 


1250 


239.0 31.94952 


1250 


239.0 


31.94952 


1500 


269.0 35.95992 


1500 


269.0 


35.95992 


1750 


297.0 . 39.70296 


1750 


297.0 


39.70296 


2000 


325.0 43.446 


2000 


325.0 


43.446 


2500 


380.0 50.7984 


2500 


380.0 


50.7984 


3000 


433.0 57.88344 


3000 


433.0 


57.88344 


4000 


535.0 70.182 


4000 


525.0 


70.182 


5000 


593.0 79.27224 


5000 


593.0 


79.27224 



1 gpm = 0.0631 L/s 
1 cfm = 0.4719 Us 



108 



Louisiana State Plumbing Code, 2000 edition® 



Table F103A 

Loss of Pressure Through Taps and Tees 

In Pounds Per Square Inch (psi) 



Size of tap or tee (In) 



Gallons per ' 
Minute 5/6 



3/4 



11/4 11/2 2 



10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

120 

140 

150 

160 

180 

200 

225 

250 

275 

300 



1.35 


0.64 


0.18 


0.08 








5.38 


2.54 


0.77 


0.31 


0.14 






12.1 


5.72 


1.62 


0.69 


0.33 


0.10 






10.2 


3.07 


1.23 


0.58 


0.18 






15.9 


4.49 


1.92 


0.91 


0.28 








6.46 


2.76 


1.31 


0.40 








8.79 


3.76 


1.78 


0.55 


0.10 






11.5 


4.90 


2.32 


0.72 


0.13 






14.5 


6.21 


2.94 


0.91 


0.16 






17.94 


7.67 


3.63 


1.12 


0.21 






25.8 


11.0 


5.23 


1.61 


0.30 






35.2 


15.0 


7.12 


2.20 


0.41 








17.2 


8.16 


2.52 


0.47 








19.6 


9.30 


2.92 


0.54 








24.8 


11.6 


3.62 


0.68 








30.7 


14.5 


4.48 


0.84 








38.8 


18.4 


5.6 


1.06 








47.9 


22.7 
27.4 
32.6 


7.00 
7,70 
10.1 


1.31 
1.59 
1.88 



1 in = 25.4 mm 
1 psi = 6.895 ItPa 

Table F103B 

Allowance in Equivalent Length of Pipe for 

Friction Loss in Values and Threaded Fittings (ft) 



Fitting or valve 








Pipe Sizes (in) 






1/2 


3/4 


1 


1 1/4 


1 1/2 


2 


21/2 


3 


45° elbow 


1.2 


1.5 


1.8 


2.4 


3.0 


4.0 


5.0 


6.0 


90° elbow 


2.0 


2.5 


3.0 


4.0 


5.0 


7.0 


8.0 


10.0 


Tee, run 


0.6 


0.8 


0.9 


1.2 


1.5 


2.0 


2.5 


3.0 


Tee, branch 


3.0 


4.0 


5.0 


6.0 


7.0 


10.0 


12.0 


15.0 


Gate valve 


0.4 


0.5 


0.6 


0.8 


1.0 


1.3 


1.6 


2.0 


Balancing valve 


0.8 


1.1 


1.5 


1.9 


12 


3.0 


3.7 


4.5 


Plug-type cock 


0.8 


1.1 


1.5 


1.9 


2.2 


3.0 


3.7 


4.5 


Check valve, swing 


|5.6 


8.4 


11.2 


14.0 


16.8 


22.4 


28.0 


33.6 


Globe valve 


15.0 


20.0 


25.0 


35.0 


45.0 


55.0 


65.0 


80.0 


Angle valve 


8.0 


12.0 


15.0 


18.0 


22.0 


28.0 


34.0 


40.0 



1 in = 25.4 mm 
1 psi = 6.895 kPa 
1 degree = 0.0175 rad 



Table F103C 

Allowance in Equivalent Length of Tube for 

Friction Loss in Valves and Fittings^ (ft) 

(Copper Water Tube) 

Tube Sizes (in) 



riiiiiiy ui vciivt; 


1/2 


3/4 


1 


1 1/4 


1 1/2 


2 


21/2 


3 


45° elbow (wrought) 


o;5 


0.5 


1.0 


1.0 


2.0 


2.0 


3.0 


4.0 


90° elbow (wrought) 


0.5 


1.0 


1.0 


2.0 


2.0 


2.0 


2.0 


3.0 


Tee, run (wrought) 


0.5 


0.5 


0.5 


0.5 


1.0 


1.0 


2.0 


— ■ 


Tee, branch (wrought) 


1.0 


2.0 


3.0 


4.0 


5.0 


7.0 


9.0 


■— ■ 


45° elbow (cast) 


0.5 


1.0 


2.0 


2.0 


3.0 


5.0 


8.0 


1.0 


90° elbow (cast) 


1.0 


2.0 


4.0 


5.0 


8.0 


11.0 


14.0 


18.0 


Tee, run (cast) 


0.5 


0.5 


0.5 


1.0 


1.0 


2.0 


2.0 


2.0 


Tee, branch (cast) 


2.0 


3.0 


5.0 


7.0 


9.0 


12.0 


16.0 


20.0 



Compression Stop 13.0 21.0 30.0 



Globe valve 
Gate valve 



7.5 10.0 12.5 53.0 66.0 90.0 33 
0.5 0.25 1.0 1.0 2.0 2.0 2.0 



40 
2.0 



Note: 

1. From "Copper Tube Handbook" by Copper Development 
Association, Inc. 



Louisiana State Plumbing Code, 2000 edition® 



109 



9000=; 

c: 

5000!-- 



:5 = 3rEssD3cr=3: 

:f3llUBTczz-J 

1 l-LLi. 

-J_Lii 



30001 

20001----V- 



500 
400 



U^r^X-^-LLLUU 5000 

|--'-rrrnn*°°<' 

^t-i-H-t-t 3000 
I I 1 1 II 
^|^_|.uaU2000 
'\ I I II 1 1 

I Mill 
V-t-M-t-M 1000 







1 I 1 l-i. 

o do dci 

PRESSURE DROP PER 100 FEET OF TUBE. POUNDS PER SQUARE INCH 
NOTE: FLUID VELOCITIES IN EXCESS OF 5 TO 8 FT/SEC. ARE NOT USUALLY RECOMMENDED 



sooo c==3=a=r3prp3c 

I II — i-fi.fuaC-.JSl 



=c3qq3Ecx=r=zr3=cccas»vv] 
_^__i_i__, inZCCCQD 

I I I I imfJXi 

— T-i-rrrnTi^ooo 

*-HH-H3000 

t Mill 

'■f-!-!-H4f!200o 




I I Mill 
^-L.LUUiJ 1 

8 8S S 8 

PRESSURE DROP PER 100 FEET OF TUBE. POUNDS PER SQUARE INCH 
NOTE FLUID VELOCITIES IN EXCESS OF 5 TO 8 FT/SEC. ARE NOT USUALLY RECOMMENDED 



Figure F103A.1I 
Friction Loss in Smooth Pipei 

(Type K, ASTMI B88 Copper Tubing) 



1. This chart applies to smooth new copper tubing with recessed 
(Streamline) soldered joints and to the actual sizes of types indicated 
on the diagram. 



Figure F103A.2 
Friction Loss in Smooth Pipe^ 

(Type L, ASTM B88 Copper Tubing) 

Note: 

1 . This chart applies to smooth new copper tubing with recessed 
(Streamline) soldered joints and to the actual sizes of types indicated 
on the diagram. 



110 



Louisiana State Plumbing Code, 2000 edition® 




FRICTION LOSS LBS. PER SO IN HEAD PER 100ft. LENGTH 

R s sssssal 



I I I I II II 

rj S § S o 

PRESSURE DROP PER 100 FEET OF TUBE. POUNDS PER SQUARE INCH 
NOTE: FLUID VELOCITIES IN EXCESS OF 5 TO 8 FT/SEC. ARE NOT USUALLY RECOMMENDED 




FRICTION LOSS LBS, PER SO. IN. HEAD PER lOOn. LENGTH 



Figure F103A.3 
Friction Loss in Smooth Plpe^ 

(Type M, ASTIV! B88 Copper Tubing) 

Note: 

1 . This chart applies to smooth new copper tubing with recessed 
(Streamline) soldered joints and to the actual sizes of types indicated 
on the diagram. 



Figure F103B 
Friction Loss in Fairly Smooth Pipe^ 

Note: 

1. This chart applies to new steel (fairly smooth) pipe and to actual 
diameters of standard-weight pipe. 



• 



Louisiana State Plumbing Code, 2000 edition® 



111 



FRICTION LOSS LBS, PER SQ. IN. HEAD PER 100ft. LENGTH 

O O Q OOOOOoS 



FRICTION LOSS LBS, PER SO IN HEAD PER lOOfl. LENGTH 




]fi 


50 


§ 


40 


? 


30 


o 






» 



FRICTION LOSS L8S, PER SQ IM. HEAD PER 10WI. LENGTH 

Figure F103C 
Friction Loss on Fairly Rough IPipe^ 



1 . This chart applies to fairly rough pipe and to actual diameters which 
in general will be less than the actual diameters of the new pipe of the 
same kind. 




FRICTION LOSS LBS, PER SQ. IN. HEAD PER lOtm. LENGTH 

Figure F103D 

Friction Loss in Rough Pipe'* 

Note: 

1 . This chart applies to very rough pipe and existing pipe and to their 

actual diameters. 



• 



112 



Louisiana State Plumbing Code, 2000 edition® 



APPENDIX G 

MEDICAL FACILITIES PLUMBING SYSTEMS 

(APPENDIX G IS A REQUIREMENT OF THIS CODE) 



GlOl GENERAL 

.1 Scope 

GlOl.Ll The provisions of this appendix are intended to 
set out those items of hospital plumbing systems which 
differ from plumbing systems in other buildings. Special 
care shall be accorded the hospital plumbing system 
because of its direct relationship to adequate medical care 
and the need for added protection for patients and hospital 
personnel from health hazards. 

GlOl.1.2 It is understood that hospital plumbing systems 
shall conform not only to the requirements of this 
appendix, but also to the requirements contained in the 
other sections of the Louisiana State Plumbing Code. 



3 The provisions of this appendix shall apply to 
special plumbing installations in clinics, doctors offices, 
nursing homes, and other medical facilities, etc., as well as 
in hospital installations. 

G1(0)L2 Definitioms 

The following words and terms shall, for the purposes of this 

chapter and as stated elsewhere in this code, have the 

meanings shown herein. Refer to Chapter 2 for general 

definitions. 



a fitting or device supplied with water or 
other fluid under positive pressure which passes through an 
integral orifice or constriction causing a vacuum. Aspirators 
are often referred to as suction apparatus, and are similar in 
operation to an ejector. 

AUTOPSY TABLE = a fixture or table used for post-mortem 
examination of a body. 



HOPPER = see Clinical Sink. 



BEDPAN STEAMER OR BOILER - a fixture used for 
scalding bedpans or urinals by direct application of steam or 
boiling water. 

BEDPAN UNIT - a small workroom in the nursing area 
designed and equipped for emptying, cleaning, and 
sometimes for steaming bedpans, and for no other purpose. 

BEDPAN WASHER AND STERILIZER - a fixture 
designed to wash bedpans and to flush the contents into the 
sanitary drainage system. It may also provide for emptying, 
cleaning, and sometimes for steaming bedpans, and for no 
other purpose. 

BEDPAN WASHER HOSE - a device supplied with hot 
and cold water and located adjacent to a water closet or 
clinical sink to be used for cleansing bedpans. 
Louisiana State Plumbing Code, 2O00 edition© 



CLINICAL SINK (BEDPAN HOPPER) - a fixture meeting 
the design requirements of G 102.1 for the rinsing of bedpans 
and soiled linen. Such fixtures shall have a trap size of not 
less than 3 inches. 

EFFECTIVE OPENING - the minimum cross-sectional 
area at the point of water supply discharge, measured or 
expressed in terms of (1) diameter of a circle, or (2) if the 
opening is not circular, the diameter of a circle of equivalent 
cross-sectional area. Applicable to air gap. 

NURSES' STATION - an area in the nursing unit separated 
from the corridor by counter or desk, designed to permit 
nurses to record and file each patient's history and progress, 
observation and control of corridor, preparation of medicines 
and maintain contact with patients, the hospital and the 
outside by local and public means of communication. 

SCRUB SINK - a device usually located in the operating 
suite to enable operating personnel to scrub their hands prior 
to operating procedure. The hot and cold water supply is 
activated by a knee-action mixing valve or by wrist or pedal 
control. 

STERILIZER, BOILING TYPE - a fixture (nonpressure 
type) used for boiling instruments, utensils, and other 
equipment (used for disinfection). Some* devices are portable, 
others are connected to the plumbing system. 



STERILIZER, INSTRUMENT 

sterilization of various instruments. 



a device for the 



STERILIZER, PRESSURE INSTRUMENT WASHER- 
STERILIZER - a fixture (pressure vessel) designed to both 
wash and sterilize instruments during the operating cycle of 
the fixture. 

STERILIZER, PRESSURE (AUTOCLAVE) = a fixture 
(pressure vessel) designed to use steam under pressure for 
sterilizing. Also called an autoclave. 

STERILIZER, UTENSIL - a device for sterilization of 
utensils as used in hospital services. 

STERILIZER VENT - a separate pipe or stack, indirectly 
connected to the building drainage system at the lower 
terminal, which receives the vapors from nonpressure 
sterilizers, or the exhaust vapors from pressure sterilizers, and 
conducts the vapors directly to the outer air. Sometimes 
called vapor, steam, atmospheric, or exhaust vent. 

STERILIZER, WATER - a device for sterilizing water and 
storing sterile water. 



STILL - a device used in distilling liquids. 



113 



a workroom in the patient nursing area, 
designed and equipped to facilitate preparation, cleaning and 
incidental sterilization of the various supplies, instruments, 
utensils, etc. involved in nursing treatment and care, 
exclusive of medications handled in nurses' stations and 
bedpan cleaning and sterilizing. 

G102 FIXTURES 

€102=1 Bedpans 

Acceptable flush rim bedpan hoppers (clinic sink), bedpan 
washers, and/or other acceptable fixtures and equipment shall 
be provided for the disposing of bedpan contents and the 
cleansing and disinfection of bedpans in soiled utility 
(hopper) rooms. 

G102.2 Clink Sink 

A clinic sink shall have an integral trap in which the upper 
portion of a visible trap seal provides a water surface. The 
fixture shall be so designed as to permit complete removal of 
the contents by siphonic or blowout action, or both, and to 
reseal the trap. A flushing rim shall provide water to cleanse 
the interior surface. The fixture shall have flushing and 
cleansing characteristics similar to a water closet. 

G102.3 Prohibited Use of CMnic and Service Sinks 

A clinic sink serving a soiled utility room shall not be 

considered as a substitute for, nor shall it be used as, a 

janitor's service sink. A janitor's service sink shall not be 

used for the disposal of urine, fecal matter, or other human 

waste. 

G 102.4 Ice Prohibited In Soiled Utility Room 
Machines for manufacturing ice, or any device for the 
handling or storage of ice, shall not be located in a soiled 
utility room. Machines for manufacturing ice, or devices for 
handling or storage of ice intended for either human 
consumption or packs, may be located in a clean utility room, 
floor pantry, or diet kitchen. 

G102.5 Sterilizer Equipment Requirements 

G102.5J It shall be unlawful to descale or otherwise 
submit the interior of water sterilizers, stills, or similar 
equipment to acid or other chemical solutions while the 
equipment is connected to the water or drainage system. 



L5.2 New pressure sterilizers and pressure instrument 
washer-sterilizers hereafter installed shall display, in a 
location clearly visible at all times, the ASME Standard 
symbol and data plate. 



O.S.S All sterilizer piping and devices necessary for 
the operation of sterilizers shall be accessible for 
inspection and maintenance, and shall satisfy the 
following: 

1. Steam supplies to sterilizers, including those 
connected by pipes from overhead mains or 
branches, shall be drained to prevent any excess 
moisture from reaching the sterilizer. The 
condensate drainage from the steam supply shall be 
discharged by gravity. 



114 



2. Steam condensate return from sterilizers shall not be 
connected to pressure or vacuum return systems; 
only gravity returns shall be acceptable. Steam 
condensate returns from sterilizers shall not be 
connected to overhead mains or branches. 

3. Pressure sterilizers should be equipped with an 
acceptable means of condensing and cooling the 
exhaust steam vapors. Nonpressure sterilizers should 
be equipped with an acceptable device which will 
automatically control the vapors in a manner so as to 
confine them within the vessel, or equipped with an 
acceptable nrieans of condensing and cooling the 
vapors. 

4. Gas fired equipment or apparatus, requiring either 
water or drainage connections or both, shall meet the 
standards of the American National Standards 
Institute. 

G102.6 Special Elevations 

Control valves, vacuum outlets, and devices which protrude 
from a wall of an opening, emergency, recovery, examining, 
or delivery room, or in a corridor or other locations where 
patients may be transported on a wheeled stretcher, shall be 
so located at an elevation which will preclude bumping the 
patient or stretcher against the device. When necessary to 
install at a low elevation, safety precautions should be taken 
to protect the personnel. 

G 102.7 Plumbing in Mental Hospitals 

In mental hospitals, special consideration should be given to 
piping, controls and fittings of plumbing fixtures as required 
by the types of mental patients being treated. Pipes or traps 
should not be exposed, and fixtures should be substantially 
bolted through walls. 

G103 DRAINAGE AND VENTING 

G103.1 Ice Storage Chest Drains 

Any drain serving an ice storage chest or box shall discharge 
over an indirect waste receptor separate from all other fixture 
wastes. Each terminal shall discharge through an air gap 
above the receptor. The end shall be covered with a 
removable screen of not less than 10 mesh per square inch 
(15.5 mesh per 1000 sq mm), and if discharging vertically, 
the terminal shall be cut at an angle of 45° (0.785 rad). 

G103.2 Bedpan Washers and Clinic Sinks 

Bedpan washers and clinic sinks shall be connected to the 
soil pipe system and vented following the requirements as 
applied to water closets, except that bedpan washers require 
additional local vents. 

G 103.3 Sterilizer Wastes 

G103.3.1 Indirect Wastes Required. All sterilizers shall 
be provided with individual and separate indirect wastes, 
with air gaps of not less than two diameters of the waste 
tailpiece. The upper rim of the receptor, funnel, or basket 
type waste fitting shall be not less than 2 inches (5 i mm) 
below the vessel or piping, whichever is lower. Except as 
provided in G 103.3.2 and G103.3.4, a "P" trap shall be 
Louisiana State Plumbing Code. 2000 edition© 



• 



installed on the discharge side of, and immediately below, 
the indirect waste connection serving each sterilizer. 

G 103.3.2 Recess Room Floor Drain. 

G103.3.2.1 In ail recess rooms containing the recessed 
or concealed portions of sterilizers, not less than one 
acceptable floor drain, cohlnecting to the drainage 
system, shall be installed in a manner to drain the entire 
floor area. 

G103.3.2.2 The recess room floor drain waste and trap 
shall be a minimum diameter of 3 in (76 mm). It shall 
receive the drainage from at least one sterilizer within 
the recess room to assure maintenance of the floor 
drain trap seal. The sterilizerlcirain shall be installed on 
a branch taken off between the floor drain trap and the 
drain head. An individual waste trap shall not be 
required on this type of installation. 

G 1 03.3.3 Prohibited Connections. Branch funnel and 
branch basket type fittings, except as provided in 
G 103.3.4, are prohibited on any new installation or when 
relocating existing equipment. Existing branch funnel or 
branch basket type installations shall be provided with an 
acceptable indirect waste below the branch connections. 

G103.3.4 Battery Assemblies. A battery assembly of not 
more than three sterilizer wastes may drain to one trap, 
provided the trap and waste are sized according to the 
combined fixture unit rating, the trap is located 
immediately below one of the iridirect waste connections, 
the developed distance of a branch does not exceed 8 ft 
(2438 mm), and the branches change direction through a 
tee-wye or wye pattern fitting. 

G103.3.5 Bedpan Steamers, Additional Trap Required. 

A trap with a minimum seal of 3 inches (76 mm) shall be 
provided in a bedpan steamer drain located between the 
fixture and the indirect waste connection. 



.3.6 Pressure Sterilizer. Except when an exhaust 
condenser is used, a pressure sterilizer chamber drain may 
be connected to the exhaust drip tube before terminating at 
the indirect waste connection. If a vapor trap is used, it 
shall be designed and installed to prevent moisture being 
aspirated into the sterilizer chamber. The jacket steam 
condensate return, if not connected to a gravity steam 
condensate return, shall be separately and indirectly 
wasted. If necessary to cool a high temperature discharge, 
a cooling receiver, trapped on its discharge side, may 
serve as the fixture trap. 



5.3.7 Pressure Sterilizer Exhaust Condensers. The 

drain from the condenser shall be installed with an indirect 
waste as prescribed in this code. If condensers are used on 
pressure sterilizers, the chamber drain shall have a 
separate indirect waste connection. 

Gll)3.3.8 Water Sterilizer. All; water sterilizer drains, 
Louisiana State Plumbing Code, 2000 edition® 



including tank, valve leakage, condenser, filter and 
cooling, shall be installed with indirect waste or according 
toG103.3.2.1. 

G103.3.9 Pressure Instrument Washer-Sterilizer. The 

pressure instrument washer-sterilizer chamber drain and 
overflow may be interconnected. Also, they may be 
interconnected with the condensers. The indirect waste 
shall follow the provision set forth in this code. 

G103.4 Aspirators 

In operating rooms, emergency rooms, recovery rooms, 
delivery rooms, examining rooms, autopsy rooms, and other 
locations except laboratories, where aspirators are installed 
for removing blood, pus, or other fluids, the discharge from 
any aspirator shall be indirectly connected to the drainage 
system. The suction line shall be provided with a bottle or 
similar trap to protect the water supply. 

G103.5 Vacuum System Stations 

Vacuum system station locations shall be considered from the 
standpoint of convenience and practical use. The receptacles 
should be built into cabinets or recesses but shall be visible 
and readily accessible. 

G103.6 Bottle System 

Vacuum (fluid suction) systems intended for collecting, 
removing or disposing of blood, pus or other fluids by the so- 
called bottle system shall be provided with receptacles, which 
are equipped with an overflow preventative device, at each 
vacuum outlet station. Each vacuum outlet station should be 
equipped with a secondary safety receptacle as an additional 
safeguard against fluids, other than air entering the vacuum 
piping systems. 

G 103.7 Central Disposal System Equipment 

All central vacuum (fluid suction) systems shall assure 
continuous service. Systems equipped with collecting or 
control tanks shall provide for draining and cleaning of the 
tanks while the system is in operation. In hospitals or 
institiitions having emergency power provisions, the system 
shall be capable of remaining in service during the use of 
emergency power. The exhausts from a vacuum pump used 
in connection with a vacuum (fluid suction) system shall 
discharge separately to the outer atmosphere. The exhaust 
discharge shall not create a nuisance or hazard within, 
without, around or about the premises. Termination of the 
exhaust to the atmosphere shall be the same as required for 
sanitary sewer vents. 

G 103.8 Central Vacuum and Disposal Systems 

G103.8.1 The waste from a central vacuum (fluid suction) 
system of the disposal type which is connected to the 
drainage system, whether, the disposal be by barometric 
lag, collection tanks, or bottles, shall be directly connected 
to the sanitary drainage system through a trapped waste. 

G 103.8.2 The piping of a central vacuum (fluid suction) 
system shall be of corrosion resistant material having a 
smooth interior surface. A branch shall not be less than V2 

115 



inch for one outlet and sized according to the number of 
vacuum outlets, and a main shall not be less than 1 inch. 
The pipe sizing shall be increased according to acceptable 
engineering practices. All piping shall be provided with 
adequate, and accessible cleanout facilities on mains, and 
branches, and shall be accessible for inspection, 
maintenance, and replacements. 



L9 Walter Systems for Space Cooling aod Heating 
Condensaite Drains 

The lowest point of a condensate riser or risers shall be 
trapped and discharged over an indirect waste sink. The trap 
may be either "P" or a "running trap" with a cleanout. A 
branch shall be installed upstream from the condensate drain 
trap for flushing and resealing purposes. The condensate 
drain and trap shall be located above the lowest floor level of 
the building. 

0103.10 Vemit Material 

Material for local vents serving bedpan washers and sterilizer 
vents serving sterilizers shall be sufficiently rust proof, 
erosion and corrosion resistant to withstand intermittent 
wetting and drying from steam vapors, to withstand the 
distilled water solvent action of the steam vapors and to 
withstand frequent and immediate changes of temperatures. 

G103J1 Vent Connections Prohibited 
Connections between local vents serving bedpan washers, 
sterilizer vents serving sterilizing apparatus and normal 
sanitary plumbing systems are prohibited. Furthermore, only 
one type of apparatus shall be served by a given vent. 

G103J2 Local Vents and Stacks 

G103.12.1 Bedpan washers shall be vented to the outer 
atmosphere by means of one or more local vents. 
Termination of the vent to the atmosphere shall be the 
same as required for sanitary sewer vents. The local vent 
for a bedpan washer shall not be less than a 2-inch 
diameter pipe. A local vent serving a single bedpan 
washer may drain to the fixture served. 



LI 2.2 Where bedpan washers are located above each 
other on more than one floor, a local vent stack may be 
installed to receive the local vent on the various floors. 
More than three bedpan washers shall not be connected to 
a 2-inch local vent stack, six to a 3-inch local vent stack, 
and 12 to a 4-inch local vent stack. In multiple 
installations, the connections between a bedpan washer 
local vent and a local vent stack shall be made by use of 
the tee or tee-wye sanitary pattern drainage fittings, 
installed in an upright position. 



each bedpan washer on the discharge or fixture side of the 
vacuum breaker, trapped to form not less than a 3-inch (76 
mm) seal, and connected to the local vent stack on each 
floor. The water supply shall be so installed as to provide 
a supply of water to the local vent stack for cleansing and 
drain trap seal maintenance each time a bedpan washer is 
flushed. 

G103.13 Sterilizer Vents and Stacks 

G103.13.1 Multiple installations of pressure and 
nonpressure sterilizers shall have their vent connections to 
the sterilizer vent stack made by means of inverted wye 
fittings. Such vent connections shall be accessible for 
inspection and maintenance. 

G103.13.2 The connection between sterilizer vent or 
exhaust openings and the sterilizer vent stack shall be 
designed and installed to drain to the funnel or basket type 
waste fitting. In multiple installations, the sterilizer vent 
stack shall be drained separately to the lowest sterilizer 
funnel or basket type waste fitting or receptor. 

G103.14 Sterilizer Vent Stack Sizes 

G103.14.1 The minimum diameter of a sterilizer vent 
serving a bedpan steamer shall be 1 1/2 inches. Multiple 
installations shall be sized according to Table G103.i4A. 

G103J4.2 The minimum diameter of a sterilizer vent 
stack shall be 2 inches when serving a utensil sterilizer, 
and 1 1/2 inches when serving an instrument sterilizer. 
Combinations of boiling type sterilizer vent connections 
shall be based on Table G103.14A. 

G103.14.3 Sterilizer vent stacks shall be 2 1/2 inches 
minimum; those serving combinations of pressure 
sterilizer exhaust connections shall be sized according to 
Table G 103. 14B. 

G103.14,4 The minimum diameter of a sterilizer vent 
stack serving an instrument washer-sterilizer shall be 2- 
inch diameter. Not more than two sterilizers shall be 
installed on a 2-inch stack, and not more than four on a 3- 
inch stack. 



G103J2.3 The bottom of the local vent stack, except 
when serving only one bedpan washer, shall be drained by 
means of a trapped and vented waste connection to the 
plumbing sanitary drainage system. The trap and waste 
shall be the same as the local vent stack. 



G103J2.4 A water supply of not less than 1/4 inch 
minimum tubing shall be taken from the flush supply of 



116 



Louisiana State Plumbing Code, 2000 edition® 



Tabled 03.1 4A 

Stack Sizes For Bedpan Steamers and 

Boiling Type Sterilizers (in) 

(iSiumber of connections of various sizes permitted to various 

sized sterilizer vent stacks) 



Stack size 


Connection size 


(in) 


m 


1 1/2 




2 


11/2 (Note 1) 


1 


or 





2 


2 


or 


1 


2 (Note 2) 


1 


and 


1 


3 (Note 1) 


4 


or 


2 


3 (Note 2) 


2 


and 


2 


4 (Note 1) 


8 


or 


4 


4 (Note 2) 


4 


and 


4 



1 in = 25.4 mm 
Notes: 

1 . Total of each size. 

2. Combination of sizes. 



Table G103v14B 

Stack Sizes for Pressure Sterilizers (in) 

(Number of connections of various sizes 

permitted to various sized vent stacks) 



Stack size 


( 


[Connection size 


(In) 


m 


3/4 


1 


1 1/4 


1 1/2 


1 1/2 (Note 1) 


3 or 


2 or 


lor 


1 


1 1/2 (Note 2) 


2 and 


1 






2 (Note 1) 


6 or 


3 or 


2 or 


1 


2 (Note 2) 


3 and 


2 






2 (Note 2) 


2 and 


1 and 


1 




2 (Note 2) 


land 


land 


1 




3 (Note 1) 


15 or 


7 or 


5 or 


3 


3 (Note 2) 




1 and 


2 and 


2 




land 


Sand 




1 



1 in = 25.4 mm 
Notes: 

1 . Total of each size. 

2. Combination of sizes. 



G 104.4 Vacuum Breaker Installations 

G104.4.1 For ordinary liose connections, the maximum 
height at which any hose is to be used shall be treated as 
its flood level. 

G104.4.2 Where low volume flows might cause leaking or 
spitting at the vacuum breaker parts, back pressure may be 
developed by installing an acceptable minimum orifice 
valve on the discharge side of the vacuum breaker. This 
shall be in addition to the regular control valve. This type 
of installation shall be subject to review and acceptance by 
the plumbing official before installation. 

G104.5 Prohibited Water Closet and Clinic Sink Supply 

Jet or water supplied orifices, except those supplied by the 
flush connections, shall not be located in or connected with a 
water closet bowl or clinic sink. This section shall not 
prohibit an acceptable bidet installation. 

G104.6 Special Equipment, Water Supply Protection 

Table G104.6 sets forth the requirements which shall be 
followed in protecting the water supply for hospital fixtures 
against backflow or back-siphonage. 

G104.7 Clinical, Hydrotherapeutic and Radiological 
Equipment 

All clinical, hydrotherapeutic, radiological, or any equipment, 
whether mentioned or not, which is water supplied or 
discharges to the waste system, shall meet the requirements 
of this section and the code covering cross connectors, air 
gaps, vacuum breakers, and check valves. Special equipment 
and devices found under these classes include those listed in 
Table G104.7. 



.15 All radioactive materials shall be disposed of in a 
manner so as not to create a hazard to operation and 
maintenance personnel of the institution or to the public. 
Specific permission shall be secured from the proper 
authority to dispose of any radioactive material to the 
drainage system. 

G104 WATER SUPPLY 

G 104,1 Water Service 

It is recommended that all hospitals have dual services 
installed in a manner to provide an uninterrupted supply of 
water in case of a water main break. 

G 1 04.3 Hot Water Supply System 

Hot water circulating mains and risers should be run from the 
hot water storage tank to a point directly below the highest 
fixture at the end of each branch main. Where the building is 
higher than three stories, each riser shall be circulated. Each 
main, branch main, riser and branch to a group of fixtures of 
the water system shall be valved. 



Louisiana State Plumbing Code, 2000 edition© 



117 



Table G104.6 
Fixtures and Their Water Suppiy Protection 



Foxtures 



Type of protection'' Remarks 



Aspirators: 

Laboratory 

Portable 

Vacuum system 
Bedpan: 

Washers 

Washer hose 
Boiling type sterilizer 



Exhaust condenser 
Flush floor drain 
Hose connection 
Pressure instmment 

washer-sterilizer 
Pressure sterilizer 
Vacuum systems: 

Cleaning 

Fluid suction 



Vacuum breaker 
Vacuum breaker 
Vacuum breaker 

Vacuum breaker 
Vacuum breaker 
Air gap 



Vacuum breaker 
Vacuum breaker 
Vacuum breaker 

Vacuum breaker 
Vacuum breaker 

Air gap or vacuum 

breaker 
Air gap or vacuum 

breaker 



Locate 5 ft above floor 
Not less than twice the 
effective opening of 
the water supply 

Locate 6 ft above floor 



Tabled 04.7 

Classes of Clinical, Hydrotherapeutic and 

Radiological Equipment 



Clinical 


Hydrotherapeutic Radiological 


Other 


Dental cuspidors 


Control units 


Diagnostic »-ray 


Violet ray 


Surgical cuspidors 


Arm bath 


Therapy x-ray 


Photographic 


Dental (flush rim) 


Leg bath 


X-ray transformers 


developing 


lavatories 


Tub bath 


X-ray oil tank 


Film 


Sitz bath 


Immersion bath 


Diffraction 


developing 


Emergency bath 


Shower bath 


X-ray developing 


Microscopic 


Receiving bath 


Needle bath 






Prenatal bath 


Tank 






Infant bath 


Pool 






Prophylaxis 


Hose 






Shampoo 


Syringe douche 






Massage 









G105 MEDICAL GASES 

Where medical gases are installed, the gas piping, outlets, 
manifold rooms and storage rooms shall be installed in 
accordance with the requirements of the NFiPA 99. 



1 ft = 304.8 mm 
Notts: 

1. Where atmospheric vacuum breakers are used, they shall be installed 
after the last control valve. 

G104.8 Condensate Drain Trap Seal 
A water supply shall be provided for cleaning, flushing, and 
resealing the condensate trap. The source of the water supply 
shall be a refrigerator condenser discharge, a drinking 
fountain waste, or other acceptable method of flushing and 
releasing the trap. The water supply shall be not less than 
one-half inch diameter pipe and shall discharge through an air 
gap not less than twice the diameter of the supply pipe. 

GlMo9 Valve Leakage Diverter 

Each water sterilizer which may be filled with water through 
directly connected piping shall be equipped with an 
acceptable leakage diverter and/or bleed-line on the water 
supply control valve to indicate and conduct any leakage of 
unsterile water away from the sterile zone. 



118 



Louisiana State Plumbing Code, 2000 edition® 



PERMIT FEES 



I {Note: Appendix H deleted without substitution.) 



Louisiana State Plumbing Code, 2000 edition® 119 



120 Louisiana State Plumbing Code, 2000 edition® 



APPENDIX I 

INSiT^LLATION OF BUILDING SEWERS 

' (APPENDIX I IS A REQUIREMENT OF THIS CODE) 



1101 CAST IRON SOIL PIPE 

Trench Construction 

Pipe shall be installed in as narrow a trench as possible while 
providing sufficient width for jointjassembly. 

1101.2 Bedding 

Pipe shall be installed so that the trench bottom provides 
support of the pipe barrel. Hub holes and coupling holes shall 
be provided. 

1101.3 Rock 

When rock larger than 1 V2 inches (38.1 mm) in diameter is 
encountered during installation, it shall be removed from the 
trench bottom and a 6 inch (152.4 mm) layer of selected fill 
shall be added to provide uniform support. 



.4 Backfilling 

Backfill trench following test. When backfilling, care shall be 
taken to protect the pipe from large liiocks, stone, or frozen fill 
material which could damage the pipe. 

1103 CLAY PIPE 

1103.1 Trench and Material Preparation 

1103.1.1 Width of trenches in which clay pipe is to be 
installed shall be such as to provide adequate space for 
workmen to place and joint the pipe properly. 

1103.1.2 Bell holes shall be excavated so that, after 
placement, only the bai^rel of the pipe receives bearing 
pressure from the trench bottom. 

1103.1.3 Preparation of the trench bottom and placement 
of the pipe shall be carefully done so that, when in final 
position, the pipe is true to line and grade. 



1103.2.3 Pipe shall be set firmly according to line and 
grade, and, preparatory to making pipe joints, all surfaces 
of the portion of the pipe to be Joined shall be cleaned and 
dried. The joints shall then be carefully adjusted and filled 
with the jointing material. 

1103.2.4 Trenches shall be kept water-free during joining 
and for a sufficient period thereafter to allow the jointing 
material to become fully set and completely resistant to 
water penetration. Trenches shall be backfilled 
immediately after pipe is laid therein to prevent 
dislocation of the sewer line or jointing material, except 
when factory applied flexible compression joints are used. 

11033 Testing 

The sewer line will be tested as required in Chapter 3, or as 
prescribed by local authority. 



J.1.4 Pipe shall be protected! during handling against 
impact shock and free fall. No pipe shall be used in the 
work which does not conform to the appropriate ASTM 
standard. 



1103.2 Pipe Laying and Joining 

1103.2.1 The laying of pipe in finished trenches shall be 
commenced at the lowest pointy with the spigot ends 
pointing in the direction of flow. 



.2.2 All pipe shall be laid with ends abutting and true 
to line and grade. They shall be ciarefully centered, so that 
when laid they will form a sewer with a uniform invert. 



Louisiana State Plumbing Code, 2000 editiGn© 



121 



1104 PLASTIC PIPE 

Trencliang and Supporting 
1104. IJ Trenching — Excavate to desired grade. Use 
template to detect high spots and holes. Fill holes and 
depressions, tamping thoroughly. 



LI. 2 Where trenching conditions are difficult, pipe 
shall be uniformly supported throughout using treated 
timber, concrete pad, sand, or select backfill properly 
tamped. 

O04.2 Layimg Bedding and Backfilling 

M04.2J Lay the pipe line as described. Be sure the pipe is 
bedded in the selected backfill one-fourth to one-third of 
the pipe diameter. Under no circumstances should bricks 
or other supports be used to bring pipe to grade. 



.2.2 After pipe is bedded and checked for grade, 
additional selected backfill is placed by shovel at sides and 
over top of pipe and tamped. By careful tamping at this 
point, the pipe can support a much greater load and is less 
likely to be subsequently disturbed or shifted. 



.2.3 Reasonably clean backfill shall be placed 12 
inches (305 mm) over the pipe. 

104.2.4 The trench may now be backfilled by any 
conventional means, bulldozer, loader, etc., and the pipe is 
protected. 



122 Louisiana State Plumbing Code, 2000 edition® 



APPENDIX J 

ILLUSTRATIONS 



(APPENDIX J IS FOR INFORMATIONAL PURPOSES ONLY) 



The following figures have been included in the 1994 edition 
of the Standard Plumbing Code to aid in interpreting this 
code. The figures are not to be construed as superseding the 
written text, but merely to illustrate. The various methods 
indicated diagrammatically do not lirhit other configurations 
of design of plumbing, soil, waste and vent systems, water 
piping, accessories, etc., when in compliance with the written 
text. It is further suggested that the users of these illustrations 
refer to the appropriate sections and standards regarding any 
of the figures to avoid misunderstanding. 



^ 



• 




I — BRICK 



t=M GLASS 



INTERCONNECT-- j 
DOWNSTREAM ■' ] 
OF THIS VENT •' J 




PRECLUDES CONVENTIONAL 
VENT SYSTEM 



SIZE BY CONVENTIONAL 
VENT SYSTEM 



SINK w/ GREASE — . L ^ 
TRAP4F.U. '^^^^ 



ALL VENT SIZED BY CONVENTIONAL 
METHOD EXCEPT THAT WHEN FIX- 
TURES DRAIN INTO EITHER VENT 
A OR B STACK UP THROUGH 
DRAIN FITTING SAME SIZE AS 
HORIZONTAL POSITION OF SYSTEM 



FLOOR SINK 
TYR 



SINK 



STACK B 
(REQUIRED) 



2 1/2" MIN. EXCEPT 
FOR UNDERGROUND 
REQUIREMENTS 
(714.4) 
FLOOR DRAIN w/ 
P-TRAP TYPICAL 
MIN. FLOOR DRAIN SIZE NEED NOT BE GREATER 
THAN 3" DUE TO REQUIREMENTS OF SEC. 409.4 
FOR FIXTURE UNITS VALUES SEE TABLE 713.2 



6" MIN. FOR TOTAL OF 96 FIXTURE UNITS 2 
PIPES SIZES LARGER THAN REQUIRED BY TABLE 
714.1 



IF COMBINATION WASTE AND VENT SYSTEM 
DRAINS INTO A SOIL OR WASTE STACK ON 
UPPER FLOORS, SIZE COMBINATION WASTE & 
VENT BRANCH TWO SIZE LARGER THAN 
REQUIRED BY TABLE 714.2 



COMBINATION WASTE 
AND VENT SYSTEM 



FOR THIS JOB ALL FLOOR DRAINS & FLOOR 

SINKS MIN. SIZE 3" (5 F.U. EACH) TABLE 713.3 

FOR OTHER FIXTURE UNITS RATINGS SEE TABLE 713.2 



Figure 6 



Louisiana State Plumbing Code, 2000 edition© 



123 



EXAMPLES OF DISTANCES PERMITTED 

IN A COMBINATION WASTE AND VENT SYSTEM 



FLOOR DRAIN— 



^, 




BY TABLE 908.1 



(24" MAX.) 1001.9 LONGER 
LENGTHS MAY SUBJECT TRAP 
SEAL TO PRESSURE GREATER 
THAN r WATER COLUMN 



INDIRECT WASTE RECEPTOR 
WIT CO. AT FLOOR LEVEL -^ 

807.1 y \ 



CO.- 



VERTICAL CO. OR HUB NOT 
PERMITTED HERE (WOULD 
INTERFERE WITH CLEANING) 





=H1 ffTy 

DISTANCE LIMITED 

BY TABLE 908.1 

MAXIMUM NOT SPECIFICALLY^ 
LIMITED BUT SHOULD NOT EX- 
CEED DISTANCE PERMITTED FOR 
INDIRECT WASTE TO VENT (805.1 ) 



-CO. 



NORMAL ROUGHING FOR ABOVE FLOOR 
SINK OR OTHER FIXTURE TRAP IN A 
COMBINATION WASTE & VENT SYSTEM 



FLOOR LEVEL- 



POINT (B) 





^-^DISTANCE LIMITED 



DISTANCE NOT SPECIFICALLY 
LIMITED BY TABLE, GOVERNED 
BY AVAILABLE FALL INVERT AT 
POINT (A) SHOULD NEVER BE 
AT AN ELEVATION ABOVE THE 
FIXTURE BRANCH FITTING AT 
POINT (B) 



INVERT 

POINT 

(A) 



Figure ? 



124 



Louisiana State Plumbing Code, 2000 edition® 



FOR OVER RIM BATH FILLERS MINIMUM AIR GAP-2' 
FOR OPENINGS 1" OR LESS IN DIA. FOR LARGER- 
OPENINGS & EFFECTS ON SIDE WALLS 
SEE ANSIA1i2.1.2 

FLOOD LEVEL IS HERE — 



NOT TO BE CONSTRUCTED AS THE FLOOR LEVEL 



EXAMPLE OF AIR GAP REQUIREMENTS FOR BATH 
FILLERS (SEE SECTION 606) 



^ 




iWV 



-M^ 



DRAIN WITH 
OVERFLOW 



THE BOTTOM OF THE BACKFLOW PREVENTER- 
IS THE CRITICAL LEVEL UNLESS OTHERWISE 
MARKED WITH THE SYMBOL C-L OR C 

L 



ATMOSPHERIC TYPE 
BACKFLOW PREVENTER\ 

OUTLET- 



AIR GAP =2xDIA 
SEE SEC. 806 



ANSIA 
112.1.2 



WASTE- 




PIPE = 



^ 



FLOOD LEVEL-^ 

CRITICAL LEVEL POINT- 
6" ABOVE FLOOR LEVEL 
RIM ANSI/ASSE 
1001-1982 SECTION 1.2 



—TEMPERATURE- 
CONTROL JACKET 



PROTECTION INDICATED IS 
'SUITABLE FOR THIS JOB ONLY 
(JOB CONDITIONS MAY REQ. 
OTHER PROTECTION) 




^ r 



U 



-WATER 
INLET 



SHUTOFF VALVE 
MAYBE 
INSTALLED ON 
INLET SIDE ONLY 
REFERENCE 
ANSI/ASSE 
1001-1982 
SECTION 1.2 



TANK DRAIN 




CHEMICAL MIXING TANK 
WITH WATER JACKET (SEE 606) 



Fogure ® 



Louisiana State Plumbing Code, 2000 edition© 



125 



.-SEE 506 




REMOVABLE 
ACCESS PANEL 



ACCESSIBLE SPACE 
UNDER COUNTER 



■H^ 



./^ \ 



CONTINUOUS PERMANENT 



\QOUNTER TOP 




HOT WATER SUPPLY- 
COLD WATER SUPPLY- 

EXAMPLE OF BUILT IN WATER HEATER 
WITH ACCESS TO RELIEF VALVE & SHUTOFF VALVE 



MAXIMUM FROM TANK TOP 



INPUT OF ELECTRIC HEATER 
WATTS X 34138 Btu 



-T & P VALVE DRAIN FULL SIZE 
OF THREADED VALVE OUTLET 



• 



Figure 9 



126 



Louisiana State Plumbing Code, 2000 edition© 



APPROVED ONLY WHEN OUTLET OF 
VACUUM BREAKER OPEN TO 
ATMOSPHERE 




WATER 
SUPPLY 



TSP 
VALVE 



-SOLENOID OR 

OTHER SHUTOFF 

VALVE FULL SIZE 

OR RELIEF 
VALVE 
OUTLET 



TO PROVIDED PROTECTION, VACUUM 
RELIEF VALVE MUST BE IN COLD 
WATER SUPPLY AND LOCATED 
ABOVE TANK TOP 

HOT WATER SUPPLY! 




NOT APPROVED SOLENOID VALVE CLOSES OFF 
VACUUM BREAKER OUTLET PLACING VACUUM 
BREAKER UNDER CONSTANT PRESSURE (SEE 
ANSI/ASSE 1001-1982) 




VACUUM 
BREAKER 

WATER 
\~- SUPPLY 
SHUTOFF 
VALVE 



TO 

APPROVED 

TERMINAL 



FOOD 
EXAMPLE OF BACK SIPHON I WASTE 
PROTECTION \gRINDEF 



IMPROPERLY 
LOCATED 
SOLENOID OR 
OTHER SHUTOFF 
VALVE 



TANK TOP 



TEMPERATURE 
SENSING 
ELEMENT 
IN HOTTEST 
WATER IN 
TANK NOT 
MORE THAN 
6° DOWN 
FROM TOP 



=a 



VACUUM RELIEF VALVE (SEE SEC 
507.1) REQUIRED ON BOTTOM INLET 
TANKS OR TANKS NOT EQUIPPED 
WITH ANTI-SIPHON TUBES. 




• COLD WATER SUPPLY 
SHUTOFF VALVE MAXIMUM 
DISTANCE FROM HEATER 
3'-0" 



WHEN SEPARATE TEMPERATURE AND 
PRESSURE RELIEF VALVE ARE USED 
PRESSURE RELIEF VALVE MAY BE 
LOCATED IN THE COLD WATER 
SUPPLY BETWEEN SHUTOFF VALVE 
AND TANK OR HEATER 



SAFETY AND ANTI-SIPHON 

DEVICIES 
(SEE SEC. 501.8.1 4 507.1) 



FigyiT© 10 



Louisiana State Plumbing Code, 2000 edition® 



127 




SLOWDOWN 
WATER SUPPLY- X 



MIXTURE TO POINT OF USE 
I 



\ 



DANGER NO PROTECTION FROM BACK FLOW 



FILLER CAP 



COMPRESSED 
AIR 



WATER & TOXIC 
MATERIAL 



COMPRESSED AIR 
SUPPLY TANK 



WATER SUPPLY- 



^ 



BLOW DOWN 

MIXTURE TO POINT OF USE 

2 



DANGER INADEQUATE PROTECTION FROM 
BACK-FLOW 



VACUUM BREAKER 




FILLER CAP 



WATER SUPPLY- 




SAFE PROTECTED FROM BACK-FLOW 

VACUUM BREAKER 

CHECK 
VALVE 

FILLER CAP 



AIR GAP-'. 
BLOW DOWN 
MIXTURE TO POINT OF USE 



HIGH PRESSURE UNITS SUCH AS USED IN CAR WASHERS 
TO SUPPLY WATER & DETERGENT TO WHEEL WASH & 
OTHER UNITS UNDER HIGH PRESSURE 



Figure I1 1 



128 



Louisiana State Plumbing Code, 2000 edition© 




k 



22" 



MIN. 



MANHOLE FRAME & COVER 



FINISHED— \ 
ELEVATION \ 



#3 BARS AT 10" o 
EACH WAY 




MIN. 5" WALL- 
THICKNESS 
(MIN. 6" IF 



FORMED AND 
POUREb^JN-PLACE) 



CAST IRON FRAME & COVER 
FOR HEAVY TRAFFIC 



CONCRETE ADJUSTING DOUGHNUT(S) 
1/2" MORTAR AND WATER SEAL 
CONCENTRIC CONCRETE CONE 



WATER SEAL GASKET AT ALL 
JOINTS AND MORTAR FILL 



PRECAST CONCRETE SECTION 
OR POURED-IN-PLACE 
REINFORCED CONCRETE 

4x4-4/4 W.W.F. (CENTER IN WALL) 

NOTE: 

ALL SECTIONS TO BE CUSTOM MADE 

AND CONFORM TO ASTM SPEC. 

DESIGNATION 0478-1 FOR 

PRECAST CONC. MANHOLE RISERS 

8-TOPS 

OPENINGS FOR SEWER PIPE CAN 
BE tAM3E AT ANY LOCATION 

WATER SEAL AROUND ALL SEWER 
PIPE PENETRATIONS 



STABILIZED SOIL OR 
AGGREGATE SUB-BASE 



Typical Sewer Manhole 
Figure 113 



• 



Louisiana State Plumbing Code. 2000 edition© 



129 



GYPSUM BOARD & 
STUD WALL 



LAVATORY . 

COUNTER TOP \ 
OR WALL HUNG 



\----_ 



WATER SAVER- 
TRAP PRIMER 



CLEANOUTPLUG-' 

FLOOR v.. 

FLOOR DRAIN ^ 




1/2° PIPING IN WALL 
AND UNDER FLOOR 
SLOPE TO FLOOR DRAIN 



TRAP 



FD©©!* Bmm Imp Primer D@ta51 



Je FormySa For Th© 
lirease Traips 

Number of Meals WasSe Flow Retoneion Storage Interceptor Size 
Per PealSt Hour'" " Rat©^ k Time^ ^ Factor^ - (liquid capacity) 

1 . Meals Served at Peak Hour 

2. Waste Flow Rate 

a. With dishwashing machine 6 gallon (22.7 L) flow 

b. Without diswashing machine S gallon (18.9 L) flow 

c. Single service kitchen 2 gallon (7.6 L) flow 

d. Food waste disposer 1 gallon (3.8 L) flow 

3. Retention Times 

Commercial kitchen waste 

dishwasher 2.5 hours 

Single service kitchen 

single serving 1.5 hours 

4. Storage Factors 

Fully equipped commercial kitchen 8 hour operation: 1 

16 hour operation: 2 

24 hour operation: 3 

Single Service Kitchen 1 .5 



Fogyre 15 



• 



130 



Louisiana State Plumbing Code, 2000 edition® 



VACUUli DR^ 

(APPENDIX K IS FOR INFORMATIONAL PURPOSES ONLY) 



KlOl SYSTEM 

KlOl.l General 

Since a vacuum drainage system is considered an alternate 
designed plumbing system, the requirements of Chapter 12 
shall apply. 



1.2 System Desjgmi 
Vacuum drainage systems shall be designed in accordance 
with manufacturer's specifications. The system arrangement, 
including piping, tank assemblies, vacuum pump assembly 
and other components necessary for proper function of the sys- 
tem shall be in accordance with manufacturer's specifications. 



Plamis airad specnlRcaitioinis ' 
Plans and specifications for such systems shall be submitted to 
the State Health Officer for review and approval prior to instal- 
lation. 



ufacturer. Tests shall be witnessed by the State Health Officer 
and/or the local Plumbing Official The results of such tests 
shall be submitted to the State Health Officer and the local 
Plumbing Official. 



Written instructions for the Operations, Maintenance, Safety 
and Emergency procedures shall be provided to the Building 
Owner and shall be available for inspection by the State Health 
Officer and the local Plumbing Official at any time. 



^ K102 FIXTURES 

Gravity type fixtures used in vacuum drainage systems shall 
comply with Chapter 4. 

K103 DRAINAGE FIXTURE UNITS 

The drainage fixture load of gravity drainage systems which 
discharge into or receive discharge from vacuum drainage sys- 
tems shall be based upon values in Chapter 7. 

K1(B4 WATER SUPPLY FIXTURE UNITS 

Water supply fixture load shall be based upon values in 
Chapter 6. The load requirement of a vacuum type water clos- 
et shall be determined per manufacturer's specifications. 



Gravity type fixtures shall be provided with traps and 
cleanouts in accordance with Chapters 7 and 10. 



Vacuum drainage pipe, fitting and valve materials shall be as 
specified by the vacuum drainage system manufacturer and as 
listed in this Code. 

Kl<07 TESTS AND DEMONSTRATIONS 

After completion of the entire system installation, the system 
shall be subjected to a vacuum test of 19 inches of mercury (64 
kPa) and shall be operated to function as required by the State 
Health Officer and/or the local Plumbing Official and the man- 



Louisiana State Plumbing -Code, 2000 edition© 



131 



132 Louisiana State Plumbing Code, 2000 edition© 



APPENDIX L 

ALTERNATE DESIGNED PLUMBING SYSTEMS 

(APPENDIX L IS FOR INFORMATIONAL PURPOSES ONLY) 



• 



• 



LlOl GENERAL 

LIOIJ. Scope 

The provisions of this appendix shall govern the materials, 
design and installation of specially designed plumbing sys- 
tems. These systems shall be designed by a Registered 
Professional Engineer. 



L2 General System Provisions 
Discharge pipe systems shall comprise the minimum of 
pipework necessary to carry away the foul water from the 
building quickly and quiedy, with freedom from nuisance or 
risk of injury to health. 

L102 DEFINITIONS 

DISCHARGE PIPE - a pipe which conveys the discharges 
from plumbing fixtures or appliances. 

DISCHARGE UNIT = a unit so chosen that the relative load- 
producing effect of plumbing fixtures can be expressed as mul- 
tiples of that unit. The discharge unit rating of a fixture 
depends on its rate and duration of discharge and on the inter- 
val between discharges. It is not a simple multiple of a rate of 
flow and is a different method of assessment than the fixture 
unit applicable to other chapters of this code and the two (fix- 
ture unit and discharge unit) cannot be interchanged. 



a pipe provided to facilitate the cir- 
culation of air within the system and to protect trap seals from 
excessive pressure fluctuation. 

L103 COMBINATION WASTE AND VENT SYSTEM 



Plans and specifications for each combination waste and vent 
system shall be submitted to the plumbing official, and 
approval shall be obtained before any installation is started. 

LI(D)3.2 Limlas 



1.2.1 A combination waste and vent system is limited to 
sinks, dishwashers, floor sinks, indirect waste receptors, 
floor drains or similar applications where the fixtures are 
not adjacent to walls or partitions. It consists of the instal- 
lation of waste piping in which the trap of the fixture is not 
individually vented. 



J.2.2 Caution must be exercised to exclude appurte- 
nances delivering large quantities of water or sewage such 
as pumps, etc., in a combination waste and vent system in 
order that adequate venting will be maintained. 

LI 03.3 Dishwashers 

Dishwashers and scullery sinks in commercial buildings 

shall drain through a grease interceptor sized in accordance 



with this code and they shall discharge into a floor sink 
through a minimum air gap. 

LI 03.4 General Design 

LI 03.4.1 Every waste pipe and trap in this system shall be 
at least two pipe sizes larger than the size required in 
Chapter 7, and at least two pipe sizes larger than any fixture 
tail piece or connection, except that when "P" traps are 
installed above the floor, the "P" trap and horizontal fixture 
drain need not meet this requirement. The vertical waste 
pipe two sizes larger than the fixture outlet connection shall 
be extended above the floor to normal roughing height, and 
a cleanout shall be installed in top of the connecting waste 
tee. The fixture drain length shall be limited by Table 908. 1 . 
Floor sinks shall be connected through a running trap two 
pipe sizes larger than the sink outlet. Floor sink and waste 
piping from the floor sink to the trap shall be sized for the 
total fixture units draining thereto, based on Table 713.2, 
but in no case shall the line be less than 2-inch (51 mm) soil 
pipe when piping is underground. 

L103.4.2 A vent shall be provided at the upstream end of 
each branch, washed over or under by the last fixture on the 
branch. No vent shall take off from the horizontal waste 
branch at an angle of less than 45 degrees (0.785 rad) from 
the horizontal unless washed by a fixture. A minimum size 
vent shall be located at all points where branches intersect. 
A vent shall be locaited downstream from all fixtures in the 
system, in addition to the upstream vent, separating this 
system from all other systems in the building. No fixtures 
other than those permitted in L104.2 shall discharge into 
any branch or portion of this system. (See Figure No. J6 and 
J7 of Appendix J.) 

L103.4.3 Caution shall be used in the design of the system 
to assure that the vertical distance from fixture or drain out- 
let to trap weir does not exceed 24 inches (610 mm). Long 
runs shall be provided with additional relief vents located at 
intervals of not more than 1(X) ft (30.5 m) to equalize pres- 
sure in the system. 

L103.5 Size of Vents 

The size of vents shall be in accordance with requirements of 
920.2 and Table 920.2, but the cross-sectional area shall be not 
less than one-half of the area of the waste pipe served, except 
that the vents shall be the same size as the waste branch to a 
point at least 6 inches (152 mm) above the flood level rim of 
the highest fixture connected before reduction, in accordance 
with Table 920.2. 

L103.6 Receptor Drain Size 

Indirect waste receptors shall be sized for the fixture units 
draining thereto, regardless of other requirements of this code. 



Louisiana State Plumbing Code, 2000 edition® 



133 



L104 SINGLE STACK DISCHARGE AND 
VENTILATING SYSTEMS 



The purpose of this section is to make provisions for the design 
and installation of plumbing systems not otherwise in this 
code. The plumbing official shall require that necessary plans 
submitted under the section are signed by a Registered 
Professional Engineer. 

L104.2 Tests 

The single stack discharge and ventilating system shall be test- 
ed in accordance with 1203.3. 

L104.3 Gemeral 

L104.3=]l Trap Function. To prevent exchange of air 
between the discharge pipe system and the building, a trap 
having an adequate water seal shall be provided for each 
fixture (see L104.4). The discharge piping system shall be 
so designed as to retain adequate water seals in all traps 
under normal pressure fluctuations caused by discharge 
from fixtures (see 1203.3). For design purposes, the effects 
of the flow of water in the branch connecting the fixture to 
the stack, and the flow of water down the stack, shall be 
considered separately. 

L104.3.2 Seal Loss (Branch Effect). Seal losses produced 
by flow in a branch depend on the following: 

1. The design of the fixture (funnel shaped fixtures 
increase the chance of self-siphonage). 

2. The length and fall (slope or gradient) and the diam- 
eter of the pipe. Branch effects are not affected by the 
height of the building and they can therefore be con- 
trolled by limiting the length and the fall of the 
branch. 

L104.3.3 Seal Loss (Stack Effect) 

L104.3.3.1 Seal losses produced by flow down the stack 
depend on the following: 



1. 



The flow load (which depends on the number of 
fixtures connected to the stack and the frequency 
with which they are used). 
The diameter of the stack. 
The height of the stack. 



L104.3.3.2 Excessive seal losses can be prevented by 
choosing a size of stack appropriate to the height of the 
building and to the number of fixtures connected to it. 

L104.3.4 Fixture Layout Where the layout of fixtures is 
suitable, careful design and installation can lead to consid- 
erable economies in pipework by eliminating the need for 
separate ventilating pipes (see Li 04.6). Where these 
requirements cannot be followed, traps shall be ventilated 
by pipes of adequate size as described in L104.7. 

L104.3.5 System Design. Consideration shall be given in 
design to the following points which, in addition to being 
good general practice, will also obviate trouble from the 
foaming of detergents: 

1. Where practicable, all fixtures shall be connected to 
one main stack which is at least 4 inches in diameter 



except for one story buildings where a 3-inch stack 
may be satisfactory (see Li 04.6 and Table L104.5B). 

2. Where sinks are connected to a separate stack, the 
stack shall be larger than normal (a minimum of 4- 
inch diameter for buildings over five stories) and con- 
nected directly to the building drain. 

3. For over two sinks, stacks shall be (when one sink is 
over another on separate floor levels) a minimum of 2 
V2-inch diameter. 

4. The interconnection of stacks is not permitted except 
when fixtures below such interconnection are vented 
as required elsewhere in this code. 

5. For buildings more than five stories high, ground 
floor fixtures shall be connected separately to the 
building drain, and vented back into the main dis- 
charge stack above the fixtures on the floor above, or 
the vent shall be connected with a main ventilating 
stack when such stack is required by Table L104.6C. 

6. Bends and offsets in vertical stacks are prohibited. 

L104.3.6 Jointing and Support The selection of materi- 
als, their jointing and support shall be in consideration of 
the effects of possible settlement, thermal movement and 
corrosion (see L104.9). Some materials may require pro- 
tection against mechanical damage. 

L104.3.7 Access. There shall be adequate provision for 
access to pipework, and the embedding of joints in the 
structure shall be avoided (see L104.8 and L 104.10). 

L104.4 Traps 

L104.4.1 General. The entry of foul air from the drainage 
system into the building is prevented by the installation of 
suitable traps which are self-cleansing. A trap which is not 
an integral part of a fixture shall be attached to and imme- 
diately beneath the fixture outlet and the bore of the trap 
shall be smooth and uniform throughout, 

L1104.4.2 Diameters. The internal diameters of traps shall 
be not less than those given in Table Li 04.4.2. 

Table LI 04.4.2 
Minimum Internal Diameters of Traps 



l^pe of Domestic Appliance 



Min. Internal Diameter (in.) 



Lavatory 

Sink 

Bathtub 

Shower 

Wash tub 

Kitchen waste disposal unit 

(tubular trap is essential) 



l>/4 

1 '/2or2' 
2 

•''2 



I in = 25.4 mm 
Note: 

I. See Figures LI 04.5 A and LI 04.5 B and Table LI 04.5 A. 

L104.4.3 Depth of Seals. Traps of water closets shall have 
a minimum water seal of 2 inches (51 mm); traps of other fix- 
tures shall have a minimum water seal of 3 inches (76 mm) 



134 



Louisiana State Plumbing Code, 2000 edition® 



A 

^i^ 



for pipes up to and including 2 inches in diameter and 2-inch 
minimum water seal for pipes over 2 inches in diameter. 

Dflsclharge Popes 
L1(D4.5.1 Diamelters. The internal diameter of a horizontal 
discharge pipe (fixture drain) shall normally be that of the 
trap to which it is attached, and in no case less, except that 
no fixture drain shall be less than 1 V2-inch diameter. 



L1(MJ.2 BrajucBi GradSemifts., The fall of discharge pipes 
shall be adequate to drain the pipe efficiently and in no case 
less than shown in Table L104'.5C (see L J 04.5. 5). 



OflTsets. All bends, 
branches and offsets shall be of easy radius and there shall 
be no restriction in the bore of the pipe. 



LI 04.5.4 PrevemillDOini of Cross Flow, To prevent water 
closet discharge from backing up a bath waste line, the lat- 
ter shall be connected to the stack with its center line either 
at, above, or at least 8 inches (203 mm) below the center 
line of the water closet branch (see Figure L104.5A). 
Where this cannot be achieved; a parallel branch may be 
used (see Figure L 1 04.5 B). Alternatively, the level of the 
water closet branch connection may be modified as above 
by dotted lines in Figure L104.5B. 



w.c 

BRANCH 



-^ 



^ OF BATH WASTE NOT 
TO BE BELOW THIS 
LEVEL 



i^-^- NO CONNECTION 
*- B OF BATH WASTE 
TO STACK 



- (£ OF BATH WASTE NOT 
TO BE ABOVE THIS 
LEVEL 



Figyr© L104.5A 



Louisiana State Plumbing Code, 2000 edition® 



135 



VENTILATION PIPES CONNECTING TO THE DISCHARGE 
STACK AT INTERMEDIATE LEVELS SHALL CONNECT 
IN A DOWNWARD DIRECTION 45° FROM THE VERTICAL 



ON TOP FLOOR ONLY ABOVE HIGHEST FIXTURE 
BRANCH VENT FITTING TO BE REVERSE OF THAT 
SHOWN, i.e., USE INVERTED Y-BRANCH 



WASH BASIN 

T-er 



T 



4'-6° 



BATH 




2''x1 1/2° SANITARY TEE 

w/ CO. F 1 1/2" TRAP & BRANCH 

OR MAY BE 1/4 BEND WHEN 

2° TRAP a 2° BRANCH ARE USED 

2° PARALLEL BRANCH TO BE INTRODUCED 
ONLY WHEN BATH WASTE WOULD 
OTHERWISE ENTER SOIL STACK 
BELOW W.C. BRANCH AND WITH WITHIN 
8°MIN. (SEEFIGL104.5A) 

VENTS FOR FIRST FLOOR FIXTURES 
CONNECTED TO BUILDING DRAIN MAY 
CONNECT TO MAIN VENTILATING 
PIPE AT A POONT 6° ABOVE THE 
HIGHEST FIRST FLOOR FIXTURE 




S*^" 



■H 



SINK 



1 1/2" DIA. 



j_^ W.C. BRANCH 

^n« MAX. LENGTH - SEE TABLE L104.6B 

F^ SEE SECTION LI 04.5.4 

^ 'SWEPT ENTRY 
r MIN. RADIUS 

INTERMEDIATE FLOORS 



90" BEND 




VENTILATING PIPE WHEN REQUIRED SHALL CONNECT TO BASE 
OF DISCHARGE PIPE UNDER FIRST FLOOR FIXTURE AT NOT 
MORE THAN 45' FROM VERTICAL & SHALL RECONNECT 
ABOVE FIXTURE ON UPPER FLOOR AS REQUIRED IN TABLE L104.6A 



ALTERNATE 



VERTICAL DISTANCE BETWEEN LOWEST CONNECTION AND INVERT 
OF DRAIN TO BE 18" MIN. (2 STORY HOUSES) OR 30" MIN. FOR 
TALLER BUILDINGS 



— LARGE RADIUS BENDS 



(SEE TABLE L104.6A) 



1. FOR DEPTH OF TRAP SEALS SEE SECTION LI 04 .4 

2. NO OFFSETS ARE PERMITTED BELOW THE CONNECTION OF THE 
TOPMOST FITTING OF THE STACK. 

3. FALL OF BRANCH DISCHARGE PIPE VARIES WITH LENGTH. 



Figure L104.5B 
laio Features of Single Stack System 



136 



Louisiana State Plumbing Code, 2000 edition© 



L104.5.5 Pipe Capacities. Discharge unit values for 
plumbing fixtures are given in Table L104.5A. For other 
fixtures the discharge unit value shall! be taken as that given 
in Table L 104.5 A for a fixture with the same diameter trap 
with a comparable use interval. Where other intervals are 
expected, the appropriate discharge unit value may be 
determined since the values given in Table L104.5A show 
that the discharge unit value is inversely proportional to the 
use interval, i.e., if the interval is dpubled, then the dis- 
charge unit value is halved. The discharge unit values of all 
fixtures contributing to flow in a pipe shall be added and the 
appropriate pipe size (and fall) chosen from Table L104.5B 
for vertical stacks or Table L104.5C for the building drain 
or its horizontal branches. 

L104.5.6 Waste Disposal Units: Special precautions are 
necessary where kitchen or food [waste disposal units are 
connected to the discharge pipe systeni. The discharge pipe 
from such a unit shall connect directly to the main dis- 
charge pipe without intermediate 'connection with any other 
discharge pipe. Tubular traps shall always be used and any 
instructions as to installation given by the manufacturer 
shall be observed. To avoid hot grease being carried into 
discharge pipes and drains, where it might biiild up and 
cause blockage, waste disposal uiiits shall always be auto- 
matically flushed with cold water in order to solidify grease 
before it enters the drainage system. 

Table L104.5A 
Plumbing Fixture Dlschaiige Unit Values 



Type Fixture 



Intervals betvyeen 
use in minutes 



Discharge unit 
values 



Tanlc TVpe W.C. 


20 


15 


Sinic 


25 


8 


Wash Basin 


25 


- 3 


Bathtub 


75 


8 


Shower Stall 


75 


4 


Garbage Disposal 


25 


4 


I fixture group 




20 


consisting of 






1 W.C, 1 Sink, 






1 Tub and 






1 Lavatory 







Table LI 04.5B 

Maximum Number of Discharge Units 

Allowed on Vertical Stacksi>2 



Noininal Internal Diameter 


Discharge Units 


of Pipe (in.) 




1 


20 (No W.C.) 


3 


200(NoW.G.) 


4 


850 


'5 


2700 


6 


6500 



1 in = 25.4 mm 
Notes: 

1 . The capacity of a vertical discharge pipe (stack) is limited by the need 
to preserve a large air core to prevent excessive pressure fluctuation. 

. ;The flow capacity of a stack may therefore be less than that of a pipe 
'of the same diameter laid at a steep fall. 

2. Discharge pipes sized by this method give the minimum size necessary 
to carry the expected flow load. Separate ventilation pipes may bte 
required (see LI 04.7). It may \x, worthwhile to consider oversizing the 
discharge pipes to reduce the ventilating pipework required. 

Table L104.5C 

Maximum Number of Discharge Units 

Connected to Building Drain or Building Sewer^' ^ 



Nominal Internal 


Fall Per Foot (In.) 


Diameterof pipe 








(in.) 


1/8 


1/4 


1/2 


2 


■ — 


10 


26 


3 


40 


100 


- 230 


4 


30 


430 


1.050 


5 


780 . 


1,500 


3,000 


6 


2.000 


3,500 


7,500 



1 in = 25.4 mm 
Notes: 

1 . Discharge pipes sized by this method give the minimum size necessary 
to carry the expected flow load. Separate ventilation pipes may be 
required (see LI 04.7). It may be worthwhile to consider oversizing the 
discharge: pipes to reduce the ventilating pipework required. 

2. Building sewer sizes start at 4 inches. 

L104.6 Design of Pipe Systems for Dwellings 

L104.6.1 General. In dwellings only, the choice and lay- 
out of fixtures and their waste pipes may follow the recom- 
mendations for simplified systems as provided in this sec- 
tion. Simplified systems for other types of buildings may 
be possible but are not provided for in this code. 



L104.6.2 Design of Single Branches and Fittings 

L104.6.2.1 Branch discharge waste pipes (fixture drains) 
serving plumbing fixtures shall have a uniform shallow fall 
and the inlet to the stack shall be of a sanitary pattern and 
have a sweep of not less than 1 inch (25.4 mm) radius. Any 
horizontal change of direction in a fixture drain shall be of 
long radius and vertical changes of direction are prohibited. 



Louisiana State Plumbing Code, 2000 edition© 



137 



L6.2.2 Water closet branch inlets to the stack shall be 
swept in the direction of flow with a radius at the invert of not 
less than 2 inches (5 1 mm). Entries at 45 degrees (0.785 rad) 
from the vertical are considered equivalent. 



i.6<.2.3 Detailed provisions for the design of single fixture 
branch pipes (fixture drains) and fittings are given in Table 
L104.6A and Table L104.6B. 



ComponenI! 



Table L104.6A 
Design of Single Branches and Fittings 

Design Requirements 



Possible Problem 



Bend at foot of stacic 



Bend to be of "large radius", i.e., 6-inch minimum root 
radius or, if adequate vertical distance is available, two 
"large radius" 45 bends are to be preferred. Vertical 
distance between lowest branch connection and invert of 
drain to be at least 1 8 inches for a two story house and 
30 inches for taller dwellings. Where this distance cannot 
be achieved, ground floor fixtures shall be connected 
directly to the building drain and vented as provided for 
in other chapters of this code. See Figure L104.5B. 



Back pressure at lowest 
branch, foaming of 
detergents 



W.C. branch 
connection 
to stack 



Water closet connections shall be swept in the direction 
of flow with radius at the invert of not less than 2 inches. 
Fittings in other materials shall have the same sweep as 
cast iron fittings. The length of unvented water closet is 
closet branches shall be limited by the diameter of the branch 
piping: 6 ft for 3-inch diameter, 10 ft for 4-inch diameter. 



Induced siphonage at 
lower level in the stack 
when water closet is 
discharged 



Lavatory waste 
1 ^/4-inch trap 
and 1 '/2-inch 
minimum waste pipe. 
Lavatories with 
ll/2-inchP.O. 
plugs may be 
installed as 
provided for 
sink waste. 



"F' traps shall be used. The maximum fall of the waste 
pipe shall not exceed the hydraulic gradient of the pipe. 
For the maximum distance between the stack and trap weir 
see Table LI04.5B. Any bends on plan shall be of not Jess 
than 3-inch radius at the center line. Waste pipes longer than 
the recommended maximum length shall be vented. As an 
alternative, 2 inch diameter waste pipes may be used so long 
as the hydraulic gradient is not exceeded, but additional 
maintenance may be necessary to maintain the bore. 



Self-siphonage 



Bath waste 1 V2-in. trap 
and 1 V2-in. waste pipe 



"P" traps shall be used (a 2-inch parallel branch, when 
required shall not be considered a violation of requirements 
of other sections of this code, when its vertical length 
does not exceed 12'/2 inches, and the center line of 
the parallel branch is not more than 12'/2 inches from 
the stack). Owing to the flat bottom of a bath, the 
trailing discharge normally refills the trap and the risk 
of self-siphonage is much reduced. Waste pipes 7 ft 6 in. 
long at a fall of V4 in./ft have been used successfully. 
Position of entry of bath waste into stack to be as shown 
in Figure LI 04.5 A. 



Self-siphonage 



Sink Waste 1 'A- in trap 
and I V2-in waste pipe 



1 in = 25.4 mm 



"P" traps shall be used. Owing to the flat bottom of a 
sink, the trailing discharge normally refills the trap and 
the risk of self-siphonage is much reduced. Fall of 
V4 in./ft shall be maintained. For maximum length, 
see Table L104.5B. A sink with I •/2-inch tail 
piece may be drained with 2-inch horizontal branch 
not exceeding 8 feet in length. When a 2-inch branch 
is used, the trap outlet shall connect to a 2 x 1^/2 inches 
reducing fitting. An opening into the branch larger than 
I '/2 inches will not be permitted except for a cleanout. 



Self-siphonage 



Note: 

Where the length or fall of the discharge pipe serving a waste fixture is greater than the recommended maximum in this table, the discharge pipe shall preferably 

be vented (see LI 04.7) or a larger diameter discharge pipe shall be used. This may have a maximum length of 10 ft. 



138 



Louisiana State Plumbing Code. 2000 edition© 



Table L104.6B " 
DistaBice From Trap Weir to Stack or 
Other Ventilating Pipe 



Size of Fixture^ 
Drain (in.) 



Distance Trap to 
Stack or Vent 



Note 4 

I'/. 

2 



4 ft 6 in. 
5ft6in.2 
7ft6in.3 



I in = 25.4 mm 



Notes: 
1. 
2. 
3. 
4. 



Minimum size. 

Other than bath waste. 

For bathtubs see Table LI 04.6A. 

1 '/2-inch fixture drains required for lavatories with 1 V4-inch traps. 

.6.3 Desjgn of Mase Pipework 



L104.6.3.2 Ah offset in the stack above the topmost con- 
nection to the stack has little effect on the performance of 
the system. Offsets below the topmost connection should 
be avoided lest extra ventilating pipes be necessary to 
maintain adequate water seals. 

LI 04.6.4 3-Inch Stacks. 3-inch stacks in a single stack 
system are limited to fixtures other than water closets and 
to fixtures with maximum drain sizes of 2 inches. 

L104.6.5 4-Inch Stacks. For details of ventilating pipes 
see Table Li 04.6C. 

LI 04.6.6 5-Inch Stacks with No Vents (Single Stack 
System). Suitable for buildings up to 12 stories high where 
the stack serves one group of fixtures on each floor, or up 
to 10 stories high where the stack serves up to two groups 
of fixtures on each floor. 



.6.3.1 Design details for stacks of various diameters 
are given below. The choice of design will depend on the 
space taken up by the pipes and the ease with which they 
can be accommodated in the building. 



LI 04.6.7 6-Inch Stacks with No Vents (Single Stack 
System). Suitable for buildings up to at least 20 stories 
high with not more than two groups of fixtures on each 
floor. - 



IMumber of stories 



TabieL104.6C 

Ventilating Pipes Required for Various Loading Conditions 

4-inch Discharge Stack 



stack serving one group^ on each floor 



Stack serving two groups^ on each floor 



FIats2, 1 to 5 
6-11 

12-15 

16-20 

Maisonettes^, 1 to 4 
5-8 

9-15 

16-20 



No separate venting required 

2-inch vent stack connected to the discharge 
stack on alternate floors 

2-inch vent stack connected to the discharge 
stack on each floor 

2 V2-inch vent stack connected to the 
discharge stack on each floor 

Single stack system 

Single stack system 



2-inch vent stack connected to the discharge 

stack on alternate (bathroom) 

floors 

2 '/2-inch vent stack connected to the 
discharge stack on alternate (bathroom) 
floors 



No separate venting required 

2-inch vent stack connected to the 
discharge stack on alternate floors 

2-inch vent stack connected to the 
discharge stack on each floor 

3-inch vent stack connected to the 
discharge stack on each floor 

Single stack system 

2-inch vent stack connected to the 
discharge stack on alternate 
(bathroom) floors 

2-inch vent stack connected to the 
discharge stack on alternate 
(bathroom floors) 

3-inch vent stack connected to the 
discharge stack on alternate 
(bathroom) floors 



1 in = 25.4 mm 



Notes: 



1 . Each group consists of a water closet, a bath, a basin and a sink. Where dwellings contain more fixtures it may be necessary to provide additional vents. 

2. Each complete living unit is on one floor. 

3. Each complete living unit occupies space on two floors, with baths on one floor of the unit. 



Louisiana State Plumbing Code, 2000 edition® 



139 



L104.7 VenJJIating Pipes 

L104,7.1 General The purpose of a ventilating pipe is to 
maintain equilibrium of pressure within the system and thus 
prevent the destruction of trap seals by siphonage or com- 
pression. It vi'ill also assist in preventing undue accumula- 
tion of foul air by facilitating air movement in the pipe sys- 
tem. 

L104.7o2 Installation. Ventilating pipes shall be so 
installed that there is a continuous fall back into the dis- 
charge pipe system to prevent any possibility of a waterlock 
preventing free movement of air through the ventilating 
system and to minimize the risk of internal corrosion. Short 
turn fittings in the pipework shall be avoided. 

LI 04.7,3 Branch Vents. Branch ventilating pipes may be 
connected to a main ventilating pipe or be carried upward 
either individually or in combination with one another. 
Such connections shall be above the flood level of the high- 
est fixture served. 

L104.7.4 Sizes. The diameter of a branch ventilating pipe 
or of a ventilating stack shall be as given in Table Li 04.7. 
For extremely long ventilating stacks, a larger diameter 
pipe shall be used. (See Table LI 04.7, Note 1.) 

L104.7.S Arrangement. Branch ventilating pipe when 
required shall be connected to the individual fixture dis- 
charge pipe (fixture drain) not less than 3 inches (76 mm) 
from the crown weir of the trap. A fixture may be connect- 
ed to the bottom of a fixture vent, or at the base of a main 
ventilating stack to assure its being kept clear. 

L104,7,6 Pimrpose, The purpose of the ventilating pipes is 
to reduce the pressure fluctuations in the discharge stack by 
allowing air to enter the stack. Where venting is necessary, 
therefore, it is often convenient to do so by cross connect- 
ing the ventilating stack and the discharge stack directly, 
preferably above the highest fixtures as appropriate. To pre- 
vent cross flow into the ventilating stack, the branch venti- 
lating pipe shall slope upward from the discharge stack at 
an angle of not less than 45 degrees (0.785 rad) until it 
reaches a point 6 inches (152 mm) above the flood level of 
the highest fixture serving the floor, at which point it may 
run at a horizontal angle until connecting with the vertical 
vent. 

Table L1 04.7 
Branch Ventilatiion Pipe or Ventilating Stack 



Diameter of branch discharge 
pipe or discharge stack, D (In.) 



Diameter of ventilating 



pipe 



Smaller than 3 

3 to 4 inclusive 

Larger than 4 



2/3 D 
2"in. 
'/7D 



1 in. = 25.4 mm 
Notes: 

I . When the vent length exceeds the length of the discharge stack, the 

vent shall be at least one pipe size larger than required in Table LI 04.7 

except for individual fixture vents. 



L104.7.7 Discharge Point. The outlet of every ventilating 
pipe system to the open air shall be at such a height and 
position as will effectively prevent the entry of foul air into 
the building (see 905). 

LI 04.8 Pipe Chases and Enclosures, Etc. 

Pipework enclosures, e.g., ducts, casings, etc., shall be of 
adequate size and shall have access provisions for mainte- 
nance, painting, testing and cleaning. They shall be con- 
structed appropriately for fire resistance in accordance with 
requirements of the Standard Building Code. 

L104.9 Choice of Materials 

Materials shall conform to the applicable requirements of 
other sections and chapters of this code. Fittings used in the 
construction of single stack plumbing systems shall in no 
case be designed with inlet radii less than provided for in 
this section. 

L104.10 Access to Interior of Pipework 

Sufficient access shall be provided to enable all pipework to 
be tested and to provide reasonable access for cleaning and 
other necessary maintenance. All access points for clearing 
purposes shall be carefully sited to allow the entry of clear- 
ing apparatus or the insertion of testing apparatus and, 
where these are in ducts, consideration shall be given to the 
other services accommodated in the duct. 

L104.il Simultaneous Discharge 

L104.11.1 The system of discharge pipes shall be capable 
of withstanding satisfactorily the effects of the probable 
maximum simultaneous discharge of fixtures which will 
occur in practice. The number of fixtures to be discharged 
together to simulate this effect is given in Table Li 04. 11. 

L104.11.2 For example, for a block of flats nine stories 
high with the stack serving one water closet, one lavatory, 
one sink and one bath of each floor, the test discharge is one 
water closet, one lavatory and one sink discharged simulta- 
neously. Where the stack serves two water closets, two lava- 
tories and two sinks on each floor, the test discharge is one 
water closet, one lavatory and two sinks. For the purpose of 
this test, baths are ignored as their use is spread over a peri- 
od and consequently they do not add materially to the nor- 
mal peak flow on which Table L104.il is based. Where a 
stack serves baths only, the number to be discharged simul- 
taneously in a discharge should be taken to be the same as 
for sinks. 

L104.11.3 All traps shall be fully charged and the appro- 
priate combination of fixtures discharged simultaneously. 
Trap seals shall be measured at the end of the discharge. 
The worst conditions occur when fixtures on the upper floor 
are discharged. A reasonable test, therefore, would be to 
discharge up to one water closet, one lavatory and one sink 
from the top of the building, distributing any additional fix- 
tures along the stack. 



140 



Louisiana State Plumbing Code, 2000 edition® 



VP 



1^ 



Wymbeir of FJKtyres to fee ©jseharged 

Stabiloty of Trap Seals 



Mumberolf 
ffJKtures of 

each kind on Water Wash : Kitchen (Misc. 

the stack Closet Basin Sink (ea. type)^ 

I I i I 

1 I 2 2 

2 2 3 3 

2 3 3. 3 

3 4 4 4 
3 5 5 4 




When the miscellaneous fixture is a washer drain, omit one sink from 
test foreach washer drain, except when washers only are connected to 
the stack. 

For washing machine drains (no washers connected) test shall be con- 
ducted with hoses connected to both the hot and cold water supply out- 
lets and with outlets fully opened. (This is in lieu of discharge from 
washers.) Test should be of 5 rninutes duration, one-half of one cup of 
liquid detergent shall be dispensed into the washer drain pipe at 
approximately one-third cup per miniite along with the water during 
the last 3 minutes of each test. 

L1(D5 SINGLE STACK PLUMBING SYSTEM 



Lies, 

The plumbing official shall require that necessary plans sub- 
mitted under this section are signed by a Registered 
Professional Engineer. 

L10S,2 Teste 

The single stack discharge and ventilating; system shall be test- 
ed in accordance with 1203.3. 

. L10S.3 Soveuilt Soinigle Stack PtopbDmg System 
Design and installation shall be in accordance with design cri- 
teria contained in CDA Handbook No. 402/0. Materials shall 
meet standards and specifications listed inTable 703 for drain, 
waste and vent pipe and fittings. 



Additional provisions for Alternate Designed Systems are con- 
tained in Appendix J - Illustrations. These provisions are appli- 
cable only where specifically included in the body of the code 
sections or in the adopting ordinance. 



Louisiana State Plumbing Code, 2000 .edition® 141 



142 



• 



Louisiana State Plumbing Code, 2000 edition© 



APPENDIX M 

PROCEDURES FOR DESIGN, CONSTRUCTION AND 
ISTALLATION OF INTERCEPTORS AND SEPARATORS 

(APPENDIX M IS A REQUIREMENT OF THIS CODE) 



MlOl GENERAL 

The provisions of this appendix shall apply to the design, con- 
struction, installation and testing of interceptors and separators 
required in accordance with 1004. 

M102 DEFINITIONS 

Definitions contained in Chapter 2 shall also apply to this 
appendix except where the following special definitions shall 
apply: 



BOTTLING PLANT SEPARATOR = an interceptor 
designed to separate and retain broken glass and other solids. 

GREASE INTERCEPTOR - an interceptor of less than 125 
gallon capacity which is designed and installed so as to sepa- 
rate and retain grease and which is generally installed indoors 
entirely above grade. 

GREASE TRAP = an interceptor of at least 125 gallon capacity 
which is designed and installed so as to separate and retain grease 
and which is generally installed below grade outdoors with pro- 
visions for above grade accessibility for cleaning purposes. 



an interceptor designed to separate and 
retain lint, strings, rags, buttons or other similar materials 
which may be discharged from laundries. 

OIL SEPARATOR = an interceptor designed to separate and 
retain waste oil and other petroleum products. 



- an interceptor designed to separate 
and retain sand, gritty material or other types of heavy solids. 

SLAUGHTER HOUSE SEPARATOR = an interceptor 
designed to separate and retain feathers, entrails and other sim- 
ilar substances. 

SPECIAL TYPE SEPARATOR - an interceptor designed to 
separate and retain deleterious, hazardous or undesirable matter 
from normal wastes for proper disposal, rendering, or recycling. 



M103.1 Size and Type 

The size and type of each interceptor or separator shall be 
determined according to maximum volume and rate of dis- 
charge and shall be approved by the Plumbing Official. 



Ml 03.2 Location 

The location of each interceptor or separator shall be approved 
by the Plumbing Official. 

Ml 03.3 Prior Approval 

No interceptor or separator shall be installed until its design, 

size, location and venting has been approved by the Plumbing 

Official. 

Ml 03.4 Cleanout on Discharge Line 

A two-way cleanout shall be provided on the discharge line 
immediately downstream of all interceptors. 

M103.5 Grease Traps/Grease Interceptors 

M103.5.1 Grease traps will be required in all instances of 
new construction or substantial renovation of buildings or 
facilities. In addition, a grease trap will be required for 
existing buildings or facilities when a proper installation 
can be performed without the need to break up a concrete 
slab. 

M103.5.2 At the discretion of the Plumbing Official, grease 
interceptors may be allowed when the conditions for a 
grease trap installation do not exist or cannot easily be met 
[e.g., (1) new construction or substantial renovation of 
buildings or facilities is not being performed and a concrete 
slab would have to be broken at the existing building or 
facility for the proper installation of a grease trap, (2) an 
outside, unpaved area surrounding the building where a 
grease trap could be installed is available; however, it is 
determined that the area is too far away from the plumbing 
fixtures that the grease trap would be servicing, or (3) the 
installation of a grease trap is unfeasible such as when serv- 
icing a kitchen which is located on the upper floors of a 
multistoried building]. 

M104 GREASE TRAPS 

M104.1 In accord with M103.5.1, an approved type grease 
trap complying with provisions of this section shall be 
installed in the waste line leading from sinks, drains and other 
fixtures or equipment in establishments such as restaurants; 
cafes; lunch counters; cafeterias; bars and clubs; hotels; hospi- 
tals; sanitariums; factory, school or day care center kitchens; 
markets; or other establishments where grease may be intro- 
duced into the drainage or sewage system in quantities that can 
affect line stoppage or hinder sewage treatment or private 
sewage disposal, except when, in the opinion of the Plumbing 
Official, they are not necessary. 



Louisiana State Plumbing Code, 2000 edition® 



143 



M104.2 Minimum Capacity 
M104.2.1 General 

A grease trap should be designed to be large enough to 
allow the water contained within it to remain cold since 
only cold water separates grease. In addition, a grease trap 
should be designed to be large enough so that it requires 
cleaning at a frequency no more often than once per month. 



,2.2 WItliout Garbage Grinder 
The minimum capacity for applications without a garbage 
grinder shall not be less than 125 gallons below the static 
water level. This capacity is sufficient to hold the flow from 
one meal long enough to accomplish proper grease separa- 
tion when serving up to 50 people. When over 50 people are 
served, a proportionately larger grease trap shall be provid- 
ed based upon 2V2 gallons per person. 

M104,23 With Garbage Grinder 
When a garbage grinder is connected (see 1004.11.1), the 
grease trap shall have a minimum capacity of no less than 
500 gallons below the static water level. This capacity is 
sufficient to hold the flow from one meal long enough to 
accomplish proper grease separation when serving up to 50 
people. When over 50 people are served, the minimum 
grease trap capacity shall be increased beyond 500 gallons 
based upon at least 2^ 1 2 gallons per person. 



A Alternate Sizing Formula 

For informational purposes only, an alternate sizing formu- 
la may be found in Appendix J. 



13 If a grease trap must be installed within an enclosed 
building, any access covers shall be gasketed to prevent the 
intrusion of odors into the building. 

Ml 04.4 A one compartment grease trap is acceptable; how- 
ever, a two compartment, or a one compartment grease trap 
with a baffle wall between the inlet and outlet, is preferred. 



1.5 The grease trap shall be placed as close to the plumb- 
ing fixture(s) discharging greasy waste as possible, but prefer- 
ably on the outside of the building when feasible. 



1.6 The minimum diameter of the outlet pipe shall not be 
less than four inches. 



i.7 A minimum of one foot of air space shall be provid- 
ed above the static water level. 



1 The grease trap outlet shall be properly vented to 
prevent the trap from siphoning itself out. Any internally 
vented outlet line shall have the vent terminal extended to 
within two inches of the bottom of the access cover to pre- 
vent grease from escaping the grease trap through the open 
vent terminal. 



.8.2 For those grease traps having a gasketed cover, 
the grease trap outlet line shall not be allowed to be inter- 



nally vented. In this case, the outlet line itself shall have a | 
two inch vent pipe properly installed. | 

M104.9 The invert of the grease trap outlet opening, at the 
point where water exits the grease trap, shall be located at a 
maximum of six inches and a minimum of four inches from 
the floor of the grease trap. This requirement also applies to 
any intermediate outlets in multi-compartment grease traps. 
The invert of the inlet shall be at least three inches above the 
invert of the outlet. 

M104.10 On unbaffled single compartment grease traps, a 90° 
ell shall be used on the inlet and shall terminate six inches 
below the static water level. On baffled single compartment 
grease traps, a baffle wall shall be placed between the inlet and 
outlet. The inlet shall discharge into the grease trap at a level 
at least six inches below the top of the baffle wall. The baffle 
wall shall extend from two inches below the static water level 
to the bottom of the grease trap such that incoming water will 
have to overflow above the top of the baffle wall in order to 
reach the outlet. 

M104.il The horizontal distance between the inlet and outlet 
piping in the grease trap should be sufficient to allow gravity- 
differential separation to the grease so that it will not escape 
through the outlet. The minimum horizontal distance shall be 
twenty-four inches. 

M104.12 Access/Covers 

M104.12.1 Access from the top of the grease trap shall be 
provided by an easily removable cover above an access 

opening of at least twenty inches square or twenty-four | 

inches round. Additional access opening/covers shall be | 

provided as necessary to provide accessibility to each com- | 

partment in multi-compartment or multi-baffled arrange- | 

ments as well as access to both the inlet and outlet. Access | 

opening covers shall be above or at grade to provide ready | 

accessibility. | 

M104,12.2 Each access cover shall be designed so that it | 

cannot slide, rotate, or flip when properly installed in order | 

that the opening is not unintentionally exposed. (The inten- | 

tion is that a child-resistant cover be provided. Especially | 

for lightweight covers, mechanical fasteners are recom- = 

mended to augment the safety of and ensure positive clo- = 

sure of the cover.) | 

M104.13 No water jacketed grease trap shall be approved or | 
installed. i 

M104.14 Each grease trap shall have an approved water seal | 
of not less than 2 inches in depth or the diameter of its outlet, | 
whichever is greater. f 

M104.15 Abandoned grease traps shall be pumped and filled | ^^ 

as required for abandoned septic tanks in accord with Chapter | ^^H 

XIII (Sewage Disposal), Appendix A, section 1.22 of the State | 
of Louisiana Sanitary Code. 



Louisiana State Plumbing Code, 2000 edition® 



NOTE: 

IF 3- THIMBLE IS USED AS ILLUSTRATED, 

ONE 2° LOCAL VENT MAY BE ELIMINATED 



T 



T LOCAL 
VENT 



— -3-— :|._r™-r-j r 
THIMBLE-r- ' 




rncgf)_r 







2' LOCAL 
VENT 



i ~\ ^UTL^y < <f * O ^"^ 



5=1 



g'-O" 



1/8 VENT 2 WAY 
BENDS TEE CO. 



urease Jrap (top viewji 
Figyre M1O4.A0 ©f 2) 



^^w 



2° LOCAL 
VEWT 



2° LOCAL 
VENT 



VENT 1/2 SIZE OF 
Oim£T WASTE 2 WAY CO. 




9'-0° 



Grease Trap (side view) 
Figyr©i\/l104.A(2^of2) 



Louisiana State Plumbing Code, 2000 edition® 



145 



NEED EASILY REMOVABLE COVERS- 
AT LEAST 20" SQUARE OR 24" ROUND. 
TOP OF GREASE TRAP AT OR 
ABOVE GRADE. 



INLET 




LEAVE TOP OPEN 
(IF OUTLET LINE NOT 
VENTED) 



OUTLET 



NEED 2-WAY 
CLEANOUT ON OUTLET 



r-r 



Min. volume below invert of outlet = 125 gallons 

= 2' X 2' X 4' water depth 
(would havie to be built 
2' X 2' X 5' in order to 
give 1 ' air space atiove 
water line) 
or = 2" X 3' X 3' water depth* 
(would have to be built 
2' X 3' X 4' in order to 
give 1 ' air space above 
water line) 

(* This would be preferred in order 
to keep inlet & outlet at least 24" 
apart from each other.) 



irease 



(sanitary details oni 

]ure M104.B 



146 



Louisiana State Plumbing Code, 2000 edition® 



GREASE TRAP 



24- CAST IRON MANHOLE- - 
COVER a FRAME 



CAST IRON CLEANOUT COVER 
FINISHED GRADE 



CLEANOUT- 

MASONRY OR CONC. 
PIPE TO SUIT 






REINFORCED CONC. TOP -—: 

w/ 24° 



INLET 

NON-REINFORCED - 
CONC. PIPE 



2° SOLID CONC. BLOCK 
BAFFLE 



REINFORCED CONC^— f" 
PAD 



C 



na 




"iW^^p^nW^ 



OMIT 



CO 



J- i 



F? 



ini 



2 WAY 
CLEANOUT 

-2" VENT 



rr TTTn 



^OUTLET 

STATIC WATER 
LEVEL 

GROUT WATER TIGHT 



2 



IDO- 



SUITABLE 
SUPPORT 



SIZES BASED ON NUMBER OF SIT DOWN PERSONS 



INTERCEPTOR 


DIM. A 


DIM.B 


DIM.C 


SIZE1 


12" 


36" 


36" 


SIZE 2 


12" 


36" 


48" 


^I^K3 


ir 


60" 


60" 



3 X 3 X 3 = 63 PEO 
4x4x3= 113 PEO 
5 X 5 X 5 = 294 PEO 



NOTES: 

1. THE BOTTOM OF THE INLET PIPE SHALL BE NOT LESS 
THAN 2 INCHES ABOVE THE BOTTOM OF THE 
OUTLET PIPE. 

2. THE BOTTOM OF THE OUTLET PIPE SHALL BE 2 

INCHES ABOVE THE TOP OF THE BAFFLE WALL. 

3. TRAP INDICATED ABOVE IS FOR CONCRETE PIPE CON- 

STRUCTION. ALTERNATE MATERIAL AND METHODS OF 
INSTALLATION MUST BE SUBMITTED FOR APPROVAL 
PRIOR TO INSTALLATION. 



RECTANGULAR 
3x3x3 = 81 PEOPLE 
4x4x3= 164 PEOPLE 
5x5x5 = 375 PEOPLE 



• 



Grease Trap 
Figure M104.C 



Louisiana State Plumbing Code, 2000 edition® 



147 



MIOS GREASE INTERCEPTORS 

M105J If allowed by the Plumbing Official pursuant to 
M 103.5.2, an approved type grease interceptor complying 
with PDI-GlOl and the provisions of this section may be 
installed in the waste line leading from sinks, drains and other 
fixtures or equipment in establishments such as restaurants; 
cafes; lunch counters; cafeterias; bars and clubs; hotels; hospi- 
tals; sanitariums; factory, school or day care center kitchens; 
markets; or other establishments where grease may be intro- 
duced into the drainage or sewage system in quantities that can 
affect line stoppage or hinder sewage treatment or private 
sewage disposal, except when, in the opinion of the Plumbing 
Official, they are not necessary. 



L2 No grease interceptor shall be installed which has an 
approved rate of flow of less than 20 gallons per minute, 
except when specially approved by the Plumbing Official. 



)S.3 Each plumbing fixture or piece of equipment con- 
nected to a grease interceptor shall be provided with an 
approved type flow control or restricting device installed in a 
readily accessible and visible location in the tailpiece or drain 
outlet of each such fixture. Flow control devices shall be so 
designed that the flow through such device or devices shall at 
no time be greater than the rated capacity of the grease inter- 
ceptors. No flow control device having adjustable or remov- 
able parts shall be approved. 

M10S.4 Each grease interceptor required by this section shall 
have an approved rate of flow which is not less than that given 
in Table M105 for the total number of connected fixtures. The 
total capacity in gallons of fixtures discharging into any such 
grease trap shall not exceed l^/j times the certified gallon per 
minute (gpm) flow rate of the grease interceptors as per Table 
M105. 

Any grease interceptor installed with the inlet more than 4 feet 
lower in elevation than the outlet of any fixture discharging 
into such grease trap shall have an approved rate of flow which 
is not less than 50% greater than that given in Table Ml 05. 

For the purpose of this section, the term "fixture" shall mean 
and include each plumbing fixture, appliance, apparatus or 
other equipment required to be connected to or discharge into 
a grease interceptor by any provision of this section. 



S Each fixture discharging into a grease interceptor 
shall be trapped and vented in an approved manner. An 
approved type grease interceptor may be used as a fixture trap 
for a single fixture when the horizontal distance between the 
fixture outlet and the grease interceptor does not exceed 4 feet 
and the vertical tailpipe or drain does not exceed 2^2 feet. 



)5.6 Grease interceptors shall be maintained in efficient 
operating condition by periodic removal of the accumulated 
grease. No such collected grease shall be introduced into any 
drainage piping or public or private sewer. 



Ml 05.7 Each grease interceptor shall have an approved water 
seal of not less than 2 inches in depth or the diameter of its out- 
let, whichever is greater. 

M105.8 When grease interceptors are allowed to be installed 
by the Plumbing Official in commercial kitchens, a recom- 
mended sizing criteria on is provided in Table M105. 

Table M1 05 
Grease Interceptors 



Required Rate of Flow 
Per Minute, Gailons 



Grease Retention 
Capacity, Pounds 



20 
25 
35 
50 



40 
50 
70 
100 



Procedure for Sizing Grease inteirceptors 



steps 


Formula 


Example 


1 


Determine cubic content 


A sink 48" long by 24" wide 




of fixture by multiplying 


by 12" deep. Cubic content 




length X width x depth. 


48 X 24 X 12= 13,824 cubic 
inches 


2 


Determine capacity in 


Contents in gallons 




gallons. 


11224 =59 g gallons 




1 gal = 231 cubic 


231 




inches. 




3 


Determine actual 
drainage load. The 


Actual drainage load 




fixture is normally 


0.75 X 59.8 = 44.9 gallons 




filled to about 75% of 






capacity with water. The 






items being washed 






displace about 25% of 






the fixture content. 






thus actual drainage 






load = 75% of fixture 






capacity. 




4 


Determine flow rate 


Calculate flow rate for one- 




and drainage period. 


minute period 




In general, good practices 






dictate a 1 -minute 


44^ =: 44.9 gpm Flow Rate 




drainage period; however. 


1 




where conditions permit. 






a 2-minute drainage 


Two-minute period 




period is acceptable. 






Drainage period is the 


M^ - 22.5 gpm Flow Rate 




actual time required to 


2 




completely drain the 






fixture. 






Actual 






Drainage 






Flow rate = Load 






Drainage 






period 




5 


Select 


For one-minute period- 
44.9 gpm requires PDI 




interceptor which 


size "50." 




corresponds to the 






flow rate calculated. 


For two-minute period- 




Note: Select next 


22.5 gpm requires PDI 




larger size when flow 


size "25." 




rate falls between two 




sizes listed. 





Figure M105.A 



148 



Louisiana State Plumbing Code. 2000 edition® 



• 



M106 OIL SEPARATORS 

All repair garages and gasoline stations with grease 
racks or grease pits, and all factories which have oily wastes 
as a result of manufacturing, storage, maintenance, repair, or 
testing processes shall be provided with an oil separator which 
shall be connected to all necessary floor drains. The separation 
of vapor compartment shall be independently vented to the 
outer air. If two or more separation or vapor compartments are 
used, each shall be vented to the outer air or may connect to a 
header which is installed at a minimum of six inches above the 
spill line of the lowest floor drain and vented independently to 
the outer air. The minimum size of a flammable vapor vent 
shall not be less than two inches, and when vented through a 
sidewall, the vent shall not be less than ten feet above the adja- 
cent level at an approved location. The interceptor shall be 
vented on the sewer side and shall not connect to a flammable 
vapor vent. All oil interceptors shall be provided with gastight 
cleanout covers which shall be readily accessible. The waste 
line shall not be less than three inches in diameter with a full- 
size two-way cleanout to grade. When an interceptor is pro- 
vided with an overflow, it shall be provided with an overflow 
line (not less than two inches in diameter) to an approved 
waste oil tank having a minimum capacity of 550 gallons and 
■ meeting the requirements of the appropriate authority. The 
waste oil from the separator shall flow by gravity or shall be 
pumped to a higher elevation by an automatic pump. Pumps 
shall be adequately sized and accessible. Waste oil tanks shall 
have a two inch minimum pump-out connection at grade and 



a 1 '/^ inch minimum vent to atmosphere at an approved loca- 
tion at least ten feet above grade. 

M106.2 Each manufactured interceptor that is rated shall be 
stamped or labeled by the manufacturer with an indication of 
its full discharge rate in gallons per minute (gpm). The full dis- 
charge rate to such an interceptor shall be determined at full 
flow. Each interceptor shall be rated equal to or greater than 
the incoming flow and shall be provided with an overflow line 
to an underground tank. 

Interceptors not rated by the manufacturer shall have a depth 
of not less than two feet below the invert of the discharge 
drain. The outlet opening shall have not less than an 18 inch 
water seal and shall have a minimum capacity as follows: 
where not more than 3 motor vehicles are serviced and/or 
stored, interceptors shall have minimum capacity of 6 cubic 
feet, and oiie cubic foot of capacity shall be added for each 
vehicle up to ten vehicles. Above ten vehicles, the Plumbing 
Official shall determine the size of the interceptor required. 
Where vehicles are serviced only and not stored, interceptor 
capacity shall be based on a net capacity of 1 cubic foot for 
each one hundred square feet of surface to be drained into the 
interceptor, with a minimum of six cubic feet. 

M106.3 A combination oil and sand interceptor may be 
installed when the design is approved in writing by the 
Plumbing Official. 



_ _ INTERCEPTOR 
y VENTS 

^.■■■ ■ ■1. ' . ' . I | » ■■ ' •^ ' •! >. 




Figure M106.A 



Louisiana State Plumbing Code, 2000 edition® 



149 



£ -^ 

2 O 

TO <© 

o "^ 



«A 



3 
g- 

(Q 

o 
o 
a. 

P 
^^ 
o 
o 
o 




TOVE^ 

OIL STORAGE 

TANK 



-SEWER VENT 



g-O" 



12° 



g-Kf 



18° 




• 



M107 SAND INTERCEPTORS 

M107.1 Multiple floor drains may discharge into one sand 
interceptor. 

M107.2 Sand interceptors shall be built of brick or concrete, 
prefabricated coated steel, or other watertight material. The 
interceptor shall have an interior baffle for full separation of the 
interceptor into two sections. The outle;t pipe shall be the same 
size as the inlet, the minimum being three inches, and the baffle 
shall have two openings of the same diameter as the outlet pipe 
and at the same invert as the outlet pipe. These openings shall be 
staggered so that there cannot be a straight line flow between 
any inlet pipe and the outlet pipe. The invert of the inlet pipe 
shall be no lower than the invert of the outlet pipe. 



For each five gallons per minute flow or fraction thereof over 
20 gallons per minute, the area of the sand interceptor inlet 
section is to be increased by one square foot. The outlet sec- 
tion shall at all times have a minimum area of 50 percent of the 
inlet sections. 

The outlet section shall be covered by a solid removable cover 
set flush with the finished floor, and the inlet section shall have 
an open grating set flush with the finished floor and suitable 
for the traffic in the area in which it is located. 

M107.3 Sand and similar interceptors for every solid shall be 
so designed and located as to be readily accessible for clean- 
ing, shall have a water seal of not less than six inches, and shall 
be vented. 



The sand interceptor shall have a minimum dimension of two 
feet square for the net free opening of the inlet screen and a 
minimum depth under the invert of the outlet pipe of two feet. 



M107.4 Alternate designs for construction or baffling of sand 
interceptors complying with the intent of this code may be 
submitted to the Plumbing Official for approval. 




I IK (( II (;) il yll 1 



4- TWO WAY-' VENT-^ 
CO. 



OPEN GRATE ^ 



SOLID COVER 10" SEWER BOX- 

SET IN CONC. \ 



V 



VENT 




Sand Interceptor 
Figure M107.A 



Louisiana State Plumbing Code, 2000 -edition® 



151 



MIOS LAUNDRY TRAPS 

Laundry equipment that does not have integral strainers shall 
discharge into an interceptor having a wire basket or similar 
device that is removable for cleaning and that will prevent pas- 
sage into the drainage system of solids ^Ij inch or larger in 
maximum dimension, such as string, rags, buttons or other 
solid materials detrimental to the drainage system. 



FLOW 




OUTLET 



/ 



4" TWO WAY CO.— 
w/ 10° SEWER BOX 
SET IN CONG. 



VENT 



TOP 
VIEW 



10° SEWER BOX- 
SET IN CONG. 



^2" VENT 




OUTLET 



SIDE 
VIEW 



Liimlt Trap (with Noin=C®rr©de Basket) 
Figure M108.A 



152 



Louisiana State Plumbing Code, 2000 edition© 



• 



Bottling plants shall discharge their process waste water into 
an interceptor which will provide for the separation of broken 
glass or other solids before discharging into the drainage sys- 
tem. 

MHO SLAUGHTER HOUSE SEPARATORS 

Slaughtering room drains shall be equipped with separators 
which shall prevent the discharge into the drainage system of 
feathers, entrails and other materials likely to clog the drainage 
system. 

Mill SPECIAL TYPE SEPARATORS 

Mil LI Wholesale Food Processaiie Eslaijlishments 
Every fish, fowl and animal slaughter house or establishment 
and every fish, fowl and meat packing or curing establishment 
and every soap factory, tallow reiidering, fat rendering and 
hide curing establishment, or any other establishment from 
which considerable amounts of grease are likely to be dis- 
charged into any plumbing system, sewer system, or private 
sewage disposal system, shall be connected to and shall drain 
or discharge into a grease trap approved by the Plumbing 
Official for this use. 

Mlllo2 Otier SpeciaD AppBkaHfioms 

Interceptors or separators for other special type applications 
shall not be iristalled until their design, size, location and vent- 
ing have been approved by the Plumbing Official. 



Louisiana State Plumbing Code, 2000 edition® 153 



1 54 Louisiana State Plumbing Code, 2000 edition© 



INDEX 



• 



Abandoned grease traps. M 1 04. 1 S 

Above ground piping. 303.8.4, 61 1.2. 703.3. 

903.3.1103.1 
Accessibility, backwater valves, 704.7.5 
cleanout plugs. 710.3. 710.4, 710.5 
expansion joints. 309.6 
floordrains, 1001.4 , 

interceptor. 1004.8 
single stack system. L104.8. LI04.10 
slip joints. 401. 5.2. 401.5.3 
water heaters, 501.7 
Acid, soil & waste piping. 
304. 1 . 308.5. 409.4, 703.6. 706.6 
system vent, 903.6 
Administration. Chapter I 
enforcement, 102.1. 102.3 
fees, Appendix H 

ins()eclions and tests. 1 04. 3 1 1 , 3 1 1 .6 
1203, B108.14.C107.6.D108 
permits. 102.4. 103 
severability, 106 
Air break (drainage system), 

deflned. 202 indirect waste. 806.2 
Air chamber. 607.8 
Air gap (drainage system). 

deHned. 202 indirect waste. 806.1 
Air gap (water distribution) 
defmed. 202. D102. 
cross connection control, 606.1. D103 
Airlock, B 102 
Alterations and repairs, 301.5 
Alternate designed plumbing systems. 

Chapter 12 
Alternate materials and methods. 102.7 
Anchors, hangers and supports. 310 
Anti-siphon devices. 507.1 
Approved. deHned, 202 
Approved materials. 405, 717.9 
Area drain, defmed. 202 
Asbestos cement pipe, 1 1 1 .5 
Attachment, hangers and anchors, 310 
horizontal piping. 310.5 
vertical piping. 310.2 
Automatic flush valves, 409. 1 3.5 
Automatic flushing tank, 409. 1 1 . 1 
Auxiliary pressure, supplementary 

Unk. 607.5 
Back-siphonage. 202, Appendix D 
Back-to-back fixtures. 914.3 
Backfill, material, Appendix I 

trenching and excavation. 305 
BackfiUing. 305.4 
Backflow, 606.1 . Appendix D 
air gap preventer for, 606. Appendix D 
cross connection, defined, 202, D102 
defined. 202, DI02 
preventer. 202, 606. D102 
Backwater valve. 1 101.5. 
1101.8.704.7,409.4.1.3 
Bar and soda fountain sink traps. 907 
Baskets and strainers. 807.1.2, 409.3. Ml 08 
Bathrooms, venting for double, 91 1 .2 
venting for multistory groups. 91 1 .3 
venting for one. 912 
venting for single groups, 911.1 
Battery fixtures, defined, 202 
Battery venting. 914.1, 920.3. Table 920.3 
Boiler blow-off, defined. 202 



Borosilicate glass pipe and fittings, 

303.7.6,310.2.7,310.3.7 
Bottling plants. 1004.10.2 
Branch, defined. 202 

fixture. 202. 1112.1 

gradients, single stack systems. 922.5.2 

horizontal. 202. 913.1 

interval, defined. 202 

vent, defined. 202 
Brazed joints. 612.4 
Brazing or welding. 309.4 
Building, defined. 202 

other than dwelling. 610.4 

storm sewer. 202. 1 103.4 

subdrain. 202, 1101.5 

trap (house), defined. 202 
Building drain system, Chapter 7 

above-ground piping within building,703.3 

below sewers, 717.1 

defined. 202 

materials, 703 

piping in raceways or tunnels, 703.3 

sizing. 714 

underground piping within Buildings. 703.4 
Building sewer. 704 

cleanouts. 704.5 

defined. 202 

materials, 703 

sizing. 714 

test, 311.4 
Building storm drains, defined. 202 

size. Table 1108.2 

underground, 1103.2 
Building classification, defined. 202 
Burned lead joints. 31 1.7 
Bushings, soldering, 303.7.4 

Calculation of size of water 

distribution system, 607 
Cast iron soil pipe. 303.7.1. 308.3. 707.3. 804 

base support. 310.2.2 

elastomeric compression gasket. 706.4 

hangers 310.2.2. 310.3.2 

joints. 309.1. 309.2 

no-hub. 706.5 

support intervals, 310.2.2 
Cast iron water pipe, 603, 608.1. 608.2. 61 1 
Caulked joints, 706.2 
Caulking ferrules, 303.7.3 
Cement mortar joints. 308.6 
Change in direction, 307.1 
Character of water, 60 1 .9 
Circuit and loop venting, 914, 920.3, 

Table 920.3 
Circuit vent, 202, 920.3 
Circular-type sink. 409.7.1 
Clay pipe. 703, 1103.3 
Clay sewer pipe joints, 707.1 
Cleaning, indirect waste pipe. 805.2 

plumbing fixtures. 403.1 
Cleanout. 303.7.6. 710.6. 710 

accessibility. 710.4, 710.5 

clearances. 712 

size. 711 
Cleanouts on building sewers. 704.5 
Clear- water wastes, 807.2 
Clearances, cleanout, 712 
Close-coupled tanks. 409. 1 3.4 
Code, remedial, 101.2 



Louisiana State Plumbing Code. 2000 edition® 



155 



Color code, 605 

Combination waste & vent system, 

denned,202, LI03 
Combination compartment, defined, B102 
Combination fixture, defined, 202 
Combining storm with sanitary 

drainage, 1106.3 
Commercial, building grease traps/interceptors, 
1004.4, Appendix M 

dishwashing machine, 804.2 

grinders, 1004.11.1 

installations-interceptors, 1004, Appendix M 

type grinders-food wastes, 409.5.2 
Conrunon vent, 202, 909. 909.2 
Concealed piping, 710.3 
Concrete sewer pipe, 703, 707.2 
Condemned equipment, 301.9 
Condensers and sumps, 807.3 
Conductor, defined, 202 

inside, 1103.1 

pipes prohibited, 1106.1 

protection of, 1 106.2 

trap location, 1 105.5 
Conductors and connections, 1 106 
Connection, to plumbing system required, 301. 11 

backflow, defined, 202, D102 

drainage system, 717.8 

fittings prohibited, 307.3 

indirect waste, 804.3 

plumbing fixtures, 408.4.2, 401.5.2 

sumps and ejectors, 717 

vent, 906, 914.2, 919 

water heater, 506, 601 .10 
Continuous flow values, 713.3 
Continuous vent, defined, 202 
Continuous waste, defined, 202 
Controls of water supply, 610 
Copper. DWV drainage tube, 703, 903 

sheet, 303.7.2 

tube, 310.2.4 

tubing to threaded pipe joints, 612.7.1 

tubing, 310.2.4.310.3.4 

water tube, 603, 608, 611, 612.6 
Corrosion and breakage, 304. 1 
Cross connection, 202, Appendix D 
Cross flow, prevention, single stack systems, L104.5.4 
Crown vent, 908.4 
Cutting or notching, 306.2 

Damage to drainage system or public sewer, 710.7 
Dead end, defined, 202 
Defective plumbing test, 31 1 
Definitions, Chapter 2, 302, 402, 502, 602, 
702,802.902, 1002,1102 

for backflow control, D102 

for mobile homes, B102, CI02 
Demand loads, 714 
Design, drinking fountains, 409.2.1 

plumbing fixtures, 408.4. 1 

single stack systems, L104.3, LI04.6, L105 

sumps and ejectors ,717 
Developed length, defined, 202 
Devices-energy shutoff, 507.4 
Direction of flow, 7 10.4 
Discharge, food waste grinders, 1004.1 1 

garbage can washers, 409.3 

single stack systems, LI04.3 
Dishwashing machine, 409. 1.1, 409. 1 .2 

commercial. 804.2 

protection. 409.1.1.1. 409.1.2.1 

separate trap for. 409. 1 . 1 .2. 409. 1 .2.2 



156 



Disinfection of potable water system piping, 601 .8 
commercial, 606 
protection, 409.2.2, 606 
Disposal units, 409.5.1 
Distance, fixture trap from vent. Table 908. 1 
trap to fixture, 1001.9 

trap to stack, single stack systems. Table LI04.6B 
Distribution of water supply, 611 
Double bath. 911.2 
Double offset, defined, 202 
Double trapping, 1001.6 
Downspout or interior leader test, 311 
Downspout, defined, 202 
Drain and sewier combination, 1 106.3 
Drain and sewers, building, 714.1 
Drain and water connections, 409.9. 1 
Drain, 202. 609.7 

building below sewers, 717.1 

building, 202, Chapter 10 

cock, 614.1 

fixture, 202, 1003 

floor, 409.4, 717, 1106.4 

hose, B 102, 81 10.2 

outlet, B 102, B 109.1 

roof, 202, 1 107 

sediment, 501.5 

storm, 202, 1101.4 
Drainage, below sewer level, 301.1 

materials,703, 1103. 1107.1 

pipe installations, 705 

required, storm. 1 101.2 

requirements. 703.1 

system, defined, 202 

vent system test, 3 1 1 
Drainage piping, defined, 202 

offset, 715 

underground, 714.4 
Drainage system, sizing. 714 
Drainage system. Chapter 7 

building sewer. 704 

connections. 717.8 

determination of sizes. 714 

drainage piping installation, 705 

fittings or connections, 309. 707 

fixture units. 713 

floor drains, 717 

frost protection. 701.6 

materials. 703 

offsets in drainage piping. 715 

sumps and ejectors. 717 

unions. 1001.7 
Drains and storm sewers combined, 1 106.3 
Drinking fountains, 409-2, 807.4 

design and construction. 409.2 

protection of water supply. 409.2.2 
Drips. 804.5 
Drum traps. 1003.4 
Duplex equipment. 717.5 
Durham system, defined, 202 
DWV copper drainage tube, 703, 903, 1 103 

Effective opening, defined, 202 
Ejectors and sumps, 717 
Elastomeric compression gasket jonts, 706.4 
Energy shutoff devices, 507.4 
Equipment, condemned, 301 .9 

used or second hand, 301.8 

water heating. 401.2, Ch. 5 

water pumping and storage, 609 
Excavations, backfill and trenching, 305 
Existingbuildings, 301.5.1. 101.4 
Existing work, defined, 202 

Louisiana State Plumbing Code, 2000 edition© 



• 



• 



Expansion joints. 309.6, 1 101.4 
Extensions through wall, 905.6 
Exterior openings. 301 .7. 1 

Fees, Appendix H 

Final test. 107.311, 1203 

Fines. 102.1.107 
Fittings, 307 
and sewer pipe, 303.8, 703 

drainage system, 703.5 

or connections prohibited, 709.2 

supply, 601.5 

vent, 903.5 
Fixture drain, defined, 202 

type and size, 1 003 
Fixture outlets, and strainers, 408.3 

minimum pressure, 607.4 
Fixture overflow, 408.4 
Fixture trap. 1001.8 

distance to vent, 908.1 

vents for, 910 
Fixtureunit, 202, 713 

flow rate, deflned, 202 

per fixture or group. Table 713.1 
Fixtures and connections prohibited, 401 .5 
Fixtures back-to-back, in battery, 914.3 
Fixtures, 401.5.1 

atdifferent levels, 910.2 

branch, 202, 1112.1 

combination, defined, 202 

layouts, single stack systems, 1203 

not listed. Table 713.2 

plumbing, Chapter 4 

quality of, 405 

setting, 403.4 

supply size, 607.3 

values for, 713.1 

vents. 908 
Flag poling, 905.4 
Flared joints, 612.3 
Flashings for roof drains, 1 107.4 
Flashings for vent terminals, 905.3 
Flat decks, 1107.3 
Boat valves, 409. 1 3.3 
Flood, level rim, defined, 202 
Floor drains, 409.4.717 

must be trapped, 1 1 06.4 

public restrooms, 409.4. 1 

size. Table 713.1 

traps and strainers, 409.4.2 
Floor flanges, 303.7.5 
Flow, direction 710.4 

obstruction, 307.5 
Flush valve, defined, 202 
Flush valve-automatic, 409. 13.5 
Flushing, device. 409. 13.2 

tanks, automatic, 409. 1 1 . 1 
Flushometer valve, defined, 202 
Food waste grinder units, 409.5 

commercial. 1004.1 1 
discharge. 1004.11 
Food grinder, 1004.11 
Food handling, 804.1 
Freezing, 304.4 
Frost, closure, 905.2 

protection, 701 .6 
Frostproof closet, defined, 202 
Future fixtures. 714.3 

Garbage can washers, 409.3 
Grade, 202,906.1 

connections for vents. 906 
Louisiana State Plumbing Code, 2000 edition® 



horizontal drainage piping, 705. 1 
Gravity and suction tanks, 609.8 
Grease interceptor. 1004, Appendix M 

defined, 202, Appendix M 

garbage can washer, 409.3 
Grease trap, defined, 202, Appendix M 
Grinders, commercial-type, 409.5.2 

food waste, commercial, 1004.1 1 

food waste, sinks waste outlets, 408.2 

food waste, units, 409.5 
Ground joint brass connections, 612.7.2 

Hangers and anchors, 202, 310 
Hangers and supports. Chapter 3 

baseof stacks, 310.5 

defined. 202 

general, 310.1 

horizontal piping, 310.3 

repair or replacement, 310.4 

strains and stresses, 3 1 0. 1.1 

vertical piping. 310.2 
Header vent, 919 
Health and safety, 301.5.2 
Heel or side inlet bend, 307.4 
Historic buildings, 101.5 
Horizontal branch, 202, 913.1 
Horizontal drainage, piping, 705. 1 , 705.2, 705.3 
Horizontal fixture branches and stacks. Table 714.2 
Horizontal pipe, defined, 202 
Horizontal piping supports, 3 10.3. 1 
Horizontal piping, 310.3 
Horizontal storm drain size, 1 108.2 
Hospital plumbing systems, G 1 01 
Hot water, distribution piping, 601.10 

for dishwasher, 409. 1 .3 

supply. 601.10 
House drain, defined, 202 
House sewer, defined, 202 
House trap, defined, 202 
Hydraulic gradient, 910. 1 

Identification, of materials, 303.4 
Identification, of piping, 605 ^ ^ 

Improper location of piping and fixtures, 404.2 
Increasers and reducers, 307.6 
Indeperident mobile home or travel trailer, B102 
Indirect waste pipe, 202, 804 

cleaning, 805.2 

connections, 804.3 

material and size, 803 
Indirect waste piping & special wastes. Chapter 8 

air break, 806 

air gap, 806 

backflow preventer, 806 

clear water wastes, 807.2 

condensers & sumps, 807.3 

drinking fountains, 807.4 

indirect waste piping, 804 

length. 805 

material & size, 803 

receptors, 807. 1 

swimming pools, 807.5 
Individual conductor trap size, 1 105.4 
Individual fixture reventing, 913 
Individual or private sewage disposal system, 202, 701. 
Individual relief & circuit & loop vents. 914, 916 
Individual vent size, 920.2, 920.3 
Individual vent. 202.909.1 
Individual venting required, 913.2 
Industrial wastes, defined. 202 
Inlet coupling. BI02 
Inside conductors, 1 103.1 



157 



inspector, plumbing, defined. 202 
Installation, plumbing fixtures, 403 

unsafe, 102.5 

vent stacks, 904.1 

waste receptors, 807. 1 . 1 
Intercepting devices, 1004. 10. 1.2 
Interceptor, approval, 1004.1, Appendix M 

commercial, 1004.10.1 

defmed, 202 

laundry. 1 004. 1 0. 1 . 1 , Appendix M 

maintenance, 1004.12, Appendix M 

oil, 1004.5, Appendix M 

required, 1004, Appendix iVl 

sand, 1004.6, Appendix M 

separators, 1004 

approval, 1004 

slaughter houses, 1004.10.3, Appendix M 

water connection, 1004.9 
Interceptors-separators, accessibility 
of interceptors, 1004.8 

backwater valves, 704.7 

bottling establishments, 1004.10.2, Appendix M 

commercial grinders, 1004.1 1 

grease interceptors, 1004.4, Appendix M 

interceptors & separators, 1 004, Appendix M 

laundries, 1004.10.1, Appendix M 

maintenance, 1004.12, Appendix M 

oil separators, 1(X)4.5, Appendix M 

sand interceptors, 1004.6, Appendix M 

slaughter houses, 1004.10.3, Appendix M 

venting interceptors, 1004.7 
Interceptors-separators, 

Chapter 10, Appendix M 
Interior leader or downspout test, 107, 31 1.5 
Interior openings, 301.7.2 
Intermediate waste holding tank, B102 

Joints and connections. General 309 

increasers & reducers, 307.6 

prohibited joints & connections, 709 

sanitary drainage, 706 

special joints, 612.7 

tightness. 308.1 

type of joints, 308, 6 1 2, 709 

unions, 1001.7 

use of joints, 309, 707 

water closets, ped. urinal & trap, 708 

water supply, 612 
Joints, borosilicate glass joints, 706.6 

brazed. 612.4 

burned lead, 308.7 

caulked, 706.2 

cement mortar, 308.6 

elastomeric compression gasket for cast 
iron soil pipe, 706.4 

expansion, 309.6 

flared, 612.3 

hubless cast iron soil pipe system, 706.5 

plumbing fixtures, 403.2 

precast, 308.5 

slip. 309.5, 401.5.2.401.5.3 

soldered, 612.2 

solvent cement joints for plastic 
pipe and fittings, 308.8 

special, 612.7 

threaded. 308.2 
tightness of. 308.1 
types. 309.612. 708 
wiped. 308.3 

Kitchen sink-waste stack, 7 1 6 

158 



Large pipe, cleanout. 7 1 2.2 

underground. 71 1.2 
Large piping horizontal drainage, 705.3 
Laundry, interceptors. 1 004. 10.1.1, Appendix M 

tray, waste outlet, 409.6. 1 
Lavatory, 408.1. 607 

waste outlet, 408.1 

water usage. 406 
Lead, 303.7.1 

pipe, 310.2.5 

to cast-iron or steel, 309.2 
Leader, defined. 202 

storm drain size. 1 108 
Length, indirect waste piping. 805 

trailer or mobile home. B102 

vent stacks. 920. 1 

vent. 920 
Liability. 103, 107 
Light and ventilation. 404. 1 
Line valves, 614.2 
Liquid waste, defined, 202 
Load factor, defined. 202 
Loop and circuit venting. 914 
Loop vent, defined, 202, 920.3 
Low pressure cutoff, 607.6 

Main, defined. 202 

Main sewer, defined, 202 

Main stack. 904.3 

Main trap, 1105.1 

Main vent. 202, 904.3 

Main vents connect at base, 918 

Maintenance, interceptors, 1004.12 

mobile home park, CI 1 1 

plumbing fixtures. 101.3.5 

travel trailer park. Bill 
Mandatory water supply, 301.1 1.2 
Manhole covers, 710.7 
Materials, approved, 303, 603. 703 

backwater valves. 704.7 

design of pipe cleanouts, 710.1 

drainage system. 703 

hangers and anchors, 310.4.1 

labor for tests, 104 

mobile home parks, CI 05 

plumbing fixtures, Ch. 4 

plumbing installations. 303, 603, 703 

quality and weight, 303 

roof drains. 1107.1 

specific type drainage, 703.2 

specific type vents, 903.2 

specifications, 303.3 

sterile, 804.4 

storm drain, 1 103 

travel trailer parks, B106 

vents and venting. 903 

water distribution pipe, tubing & fittings, 61 1 

water service pipe, 608 
May. defined. 202 
Mechanical excavation, 305.3 
Minimum, size of fixture-supply pipe. 607.3 

size of soil & waste stacks, 714.2 

size of water distribution system, 607. 1 

facilities. 407 

pressure at fixture outlets. 607 4 

standards, 303.1 

velocity, 705.4 
Mobile home. CI 02 

connections-responsibility, CI 09 

of travel trailer park. Bl 10. Bill 
Multiple wash sinks. 409.7 
Multistory bathroom groups, 911.3 

Louisiana State Plumbing Code, 2000 edition© 



Noise and hazard, 607.8 
Nonpotable water, 202, 605.2 
Notching or cutting, 306.2 
Nuisance, defined, 202 

Obstruction to How, 307.5 
Offset, defined, 202 

double, 202 

drainage piping, 715 

of 45 degrees or less, 7 1 5. 1 

reliefs for vents, 917.3 

return, defined, 202 

vents, 917 
Offsets, above highest branch, 715.2 

less than 45" from horizontal 
in buildings five or more stories, 917 

below lowest branch, 715.3 

more then 45 degrees. 715.4 
Oil separators, 1004.5, Appendix M 
Old house sewers and drains, 704.4 
Open trenches, 305.2 
Openings, exterior, 301 .7. 1 

interior, 301.7.2 
Overflow, 408.4 

fixture, 408.4 

laundry tray, 409.6 

Parks, mobile homes and travel trailers, B 102 

Penalties and violations, 107 

Permit, 103 r 

failure to obtain, 103 

fees. Appendix H 
Person, defined, 202 

Pipe capacities, single stack systems, LI 04.5 
Pipe cleanouts, concealed piping, 7 1 0.3 

direction of flow, 7 1 0.4 

large pipe, 712.2 

location, 710.2 

material and design, 7 1 0. 1 

new fixtures prohibited, 710.5 

size, 711 
Pipe, asbestos cement, 1 101.5 

borosilicate pipe and fittings, 303.7.6, 310.2.7, 310.3.7 

cast iron soil pipe, 310.2.2, 804 

horizontal, 310.3 

inlet and outlet. El 05.6 

large, 711.2,712.2 

lead, 310.2.5, 310.3.5 

plastic pipe and fittings, 303.8, 603, 703, 903 

protection, 304 

small,711.l,712.l 

waste, defined, 202 
Pipes through footings or foundation walls, 304.3 
Piping, close to footings, 304.5 
Piping, concealed, 710.3 

horizontal, 310.3 

identification. 605 

in concrete, 310.5 

material, 303,603,703 

small, 705.2 

subject to freezing, 304.4 . 701.6 

support of, 305. 1 

vertical, 310.2 
Pitch or grade, defined, 202 

Plans and specifications, B 1 04, CI 04, 1202.1. K 1 01. 3, Ml 03.3 
Plastic, pipe & fittings. 303.8 

materials. 303, 603, 703 
Plumber, responsibility, 103. 107 
Plumbing fixture. Chapter 4 

alternate materials. 102.7 

cleanino. 403.1 



connection. 408.4.2 

defined. 202 

dishwashing machine, 409.1 

drinking fountain, 409.2 

floor drains, 409.4 

food waste grinder units, 409.5 

garbage-can washers, 409.3 

installation, 403 

joints, 403.2 

laundry trays. 409.6 

lavatories, 408. 1 

minimum facilities, 407 

multiple wash sinks, 409.7 

overflows, 408.4 

prohibited fixtures & connections, 401.5 

requirements, 405 

shower receptors & compartments, 409.8 

sinks, 408.2 

special fixtures & specialties, 409.9 

strainers & fixture outlets, 408.3 

urinals, 409.11 

washing machines for residences, 409.12 

water closets, 409.13 
Plumbing installation, 

hot water storage, Ch. 5 

materials, 303, 603, 703 

standards for mobile homes and 
mobile home parks, CI 01 

standards for travel trailers and parks, B 101. 1 
Plumbing official, 202 

powers and duties, 102 

qualifications, 202 
Plumbing system, connection required, 301.1 1 

defined, 202 
Plumbing, defined, 202 
Pneumatic ejectors, 915 
Pool, swimming, 807.5 
Potable water, acceptable sources, 604.2 

defined, 202 

supply protection, 606 

system piping disinfection, 601.8 
Power & duties of plumbing official, 1 02 
Precast joints, 308.5 
Pressure, marking of storage tank, 501 .8.2 

variable street, 607.7 

minimum, 607.4 
Pressure relief valves, 507.3 
Pressure tanks, 609.9 

Pressure tanks, boilers & relief valves, 609.2 
Privacy screens, 301.2.21. B105.4.2 
Private or private use, defined, 202 
Private sewage disposal system, 701 .8, Appendix E 
Private sewer, defined, 202 
Private water supply, 608.6 
Processing, water used for, 614.3 
Prohibited fixtures. 40 1 .5 
Protected traps, 901.2 
Protection, of trap seals, 901 .2, 908.2 

conductors, 1 106.2 

dishwashing machines, 409.1.1 

pipes, 304 

potable water supply, 606 

washing machines, 409. 1 2. 1 

water supply, 606 
Public institutional showers, 409.8.3 
Public or public use, defined, 202 
Public sewer, defined, 202 
Pumps and other appliances, 609. 1 

Quality of fixtures. 405 
Quality of water supply. 604 



Louisiana State Plumbing Code. 2000 edition© 



159 



Rainwater conductor protection, 1 106.2 

Receptors, 807. 1 

Records. D 108.3.4 

Reducers and increasers, 307.6 

Reducing valve or regulators for water pressure. 607.9 

Relief vent, 916 

defined, 202 

interceptor, 1004 

size, 920.2 
Relief, outlet wastes, 507.6 
Relief valves, water pressure and temperature, 507.3 
Remedial code, 101.2 
Repairs, alterations, 301.5 
Reports. 104, 1202.2 
Retesting, 104 
Return offset, deflned, 202 
Revent pipe, deHned, 202 
Reventing individual fixtures, 913 
Revocation of permits, 102.4 
Right of entry. 102.2 
Rise, vertical, 906.2 
Riser, defined, 202 
Rodent proofing, 301.7 
Roof drain, 1107 

defined, 202 

flashings, 1106.4 

flat decks, 1107.3 

materials, 1107.1 

strainers. 1107.2 
Roof, extensions, 905.1 

Safety devices, 507, 613 

Safety, water heater, 501 .8.1 

Sand interceptor, 202, 1 004.6, Appendix iVl 

Sanitary and storm sewer, combined, 1 106.3 

separated, 704.3 
Sanitary sewer, defined, 202 
Seal loss, single stack systems, LI 04.3. 2, LI 04.3. 3 
Seats, water closet, 409. 13.6 
Sediment drains, 501 .5 

Separate connections-domestic disposal units, 409.5.1 
Separate controls for each family unit, 610.3 
Separate trap washing machine, 409.12.2 
Separate trenches, 704.1 
Separate venting, 917.2 
Separate vents, 717.7 
Separator, defined, 202, Appendix M 

interceptors, 1004, Appendix M 

slaughter house, 1004.10.3, Appendix M 
Septic tank, 202 

Service buildings, B102, B105,C110 
Service lines near drain or sewer lines. 608.3 
Sewage, defined, 202 
Sewer and drain combination, 1 106.3 
Sewer pipe, 

cast iron soil pipe, 303, 703 

clay, 707.1 

concrete, 707.2 

joints, 706.3 

plastic, 308.8, 310.2.6. 310.3.6, 703 
Sewer, & water pipes, 305.6 

building, 202, 704 

house, defined. 202 

in filled ground. 704.2 

lateral. B 102 

main, defined, 202 

public, defined, 202 

storm, 202. 1 103.4 
Shall, defined, 202 
Shower. 409.8. 1 

compartment floor construction. 409.8.2 



160 



heads. 406 

public or institutional. 409.8.3 

receptors and compartments, 409.8 

Side inlet or heel bend, 307.4 

Side vent, defined, 202 

Single stack discharge & ventilating 
pipesystems. 1203.3.3.1, L104 

Single stack plumbing systems, L105 

Sinks, 408.2 
bar and fountain sink traps, 907 
circular type, 409.7.1 
kitchen, waste stack, 716 
multiple wash, 409.7 
straight-line type, 409.7.2 
traps for bars and fountains, 907 

waste outlet, 408.2 
Sizing, of water distribution 

system, 611. 607. Appendix F 

drainage system, 714 

pipe, F103.2 

vents, 920 
Slaughter house, separators, 1004.10.3. Appendix M 
Sleeves, 304.2 

Slip joints, 202, 309.5, 401.5.2 
Slope, defined, 202 
Small pipe cleanouts, 7 1 1 . 1 , 7 1 2. 1 
Small piping horizontal drainage, 705.2 
Soil pipe, defined, 202 
Soldered joints, 6 1 2.2 
Soldering bushings, 303.7.4 
Special fixtures and specialties. 409.9 
Special joints, 612.7 
Special materials, 303.7 
Special type separators, 1004.13 
Special waste pipe, defined, 202 
Specifications, and drawings, 

and plans. B 104, CI 04, 1202.1. K101.3, M103.3 

for materials. 303.3 
Splashing, 807.1.3 
Sprinklers (lawn), 606.3 
Stack, defined, 202 

group, defined, 202 

main, 904.3 

of more than 10 branch intervals, 916 

vent, defined, 202 

venting, 202,912 
Standards, minimum, 303.1, 101.3.4 
State Health Officer. 202 
Sterile materials, 804.4 
Stop and waste valve combination. 608.5 
Storm drain. Chapter II 

building size. 1108.2 

conductors and connections, 1 1 06 

defined, 202 

general, 1101 

materials, 1 103 

roof drains, 1 107 

size of leaders and storm drains, 1 108 

underground, 1 103.3 

values for continuous flow, 1111 
Storm and sanitary drainage combination. 1 1(^.3 
Storm sewer, building. 202. 1103.4 
Straight-line type sink, 409.7.2 
Strain and stresses. 310.5 
Strainers, 1107.2 

and baskets. 807.1.2 

and fixture outlets. 408.3 
Structural safety. 306 
Subdrain. building, 202. 1 101.5 
Subsoil drain. 202. 1101.4 
Suction and gravity tanks. 609.8 
Sump, and ejector connections. 717 11 

Louisiana State Plumbing Code, 2000 edition© 



pump equipment design, 717.3 

condensers, 807.3 

defined, 202 
Supplementary tank, auxiliary pressure, 607.5 
Supply fittings, 601.5 
Supports, base of stacks, 310.6.5, LI 04.3.6 

buried piping, 305.1 

defined, 202 

horizontal pipi ng, 3 1 0.3 . 1 

single stack systems, LI 04.3.6 
Swimming pools, 807.5 

Tables: battery vent sizing, 920.3 

building drains and sewers, 714. 1 

distance of fixture trap from vent, 908.1 

fixture units per fixture or group, 713.1 

fixtures not listed, 713.2 

horizontal fixture branches and stacks, 714.2 

materials for plumbing installation, 303, 603, 703 

minimum facilities & occupant content, 407 

size and length of vents, 920.2 

size of horizontal storm drains, 1 108.2 

size of vent stacks, 911 .3 

size of vertical leaders, 1 1 08. 1 
Tanks, close-coupled, 409.13.4 

controls, 610.2 
Tests, 

final, 104.311,311.6, 1203,8108.14. CI07 .6, D108 

interior leaders or downspouts, 31 1.5, 1101 .9 

material and labor for, 31 1.1 

methods for drainage and vent 
systems, 311.2 

of building sewer. 31 1.4 

of drainage and vent systems, 3 1 1 .2, 701.9, 901.4, B108.14,C107.6 

engineered stack systems, 1203 

water supply system, 31 1.3, 601.1 1 
Threaded joints. 308.2 
Threaded pipe to cast iron, 309.1 
Threaded pipe, 310.2.3, 310.3.3 
Threaded unions, 1001.7 
Tightness of joints, 308.1 
Trailer length, B 102 
Trap, and strainers-floor drain, 409.4.2 

anti-siphon, 507.1 
cleanouts, 710.6 
dip. 908.3 
drum, 1003.4 
fixture. 1001.8 

function, single stack systems, LI 04.3 
grease, defined, 202 
house, defined. 202 
level and protection. 1001.3 
main, 1 105.1 
prohibited. 1001.5 
protected, 901 .2 
relation to fixture drains, 1003.2 
seal protection. 901.2, 908.2 
seal. 202, 1001.2 
single stack systems, LI 04.4 
size for individual conductors. 1 105.4 
size. 1003.1 
storm drain, 1 101.3 
to fixture, distance, 1001.9 
to vent distance. 909. 1 , 909.3 
types, 1003.3 
underground, 1001.4 
Trapping, double, 1001.6 
Traps and cleanouts. Chapter 10 
cleanout clearances, 712 
distance of trap to fixture, 1001.9 
general requirements, 1001 
pipe cleanouts. 710 
Louisiana State Plumbing Code. 2000 edition® 



size of cjeanouts, 7 1 1 

type & size of traps & fixture drains. 1003 
Travel trailer, defined. B 102 

park, defined, B 102 

sanitary service station, defined. B 102 
Trenching, excavation, backfill, 305 
Trough Urinals. T407-Note 21 

Underground, drainage piping, 714.4 

piping within buildings, 703.4 

storm drains, 1 103.2 . 

traps, 100L4 

vent piping. 903.4 

trough urinals. 401.5.1 
Unions (threaded), 1001.7 
Unit load-maximum fixture, 714.1 
Unsafe installations, 102.5 
Urinals, 405, 407. 409.11 

equipped with automatic flush valves. 409.1 1 .2 

trough, 401 .5. 1 , T407-Note 21 
Used or secondhand equipment, 301.8 
Used piping, 601.9.2 

Vacuum breakers, defined. 202 

Values for continuous flow, 713.3 

Values for fixtures, 713.1, Table FlOl 

Valves, backwater. 409.4.1.3. 704.7, 1 101.5, 1101.8 

Valves, float, 409. 13.3 

Hush, defined, 202 

flushometer, defined, 202 

line, 614.2 

stop-and-waste valves and devices, 608.5 
Variable street pressures, 607.7 
Velocity, minimum, 705.4 
Vent connections. 906 

circuit and loop, 914 

stack, 919 
Vent offset, 917 

relief, 917.3 
Vent piping, above ground, 903.3 

single stack sysitems, LI 04.7 

size building sump. 717.6 

underground, 903.4 
Vent relief, 916 

defined, 202 

installation. 904. 1 

length, 920.1 

minimum size. 7 1 4.2 

multistory bathroom. Table 91 1.3 
Vent system, and drainage test, 311 

defined. 202 
Vent terminals, 905. 905.6 

extensions through wall. 905.6 

flashings, 905.3 

frost closure. 905.2 

location. 905.5 

vent stack. 904.2 
Vent, battery. 920.3 

branch, defined, 202 

circuit, defined, 202 

common, defined, 202 

continuous, defined, 202 

crown. 908.4 

fittings, 903.5 

fixture. 909 

flashings. 905.3 

grades and connections. 906 

headers. 919 

height above fixtures, 906.3 

individual, 202. 909.1.920.2 

length. 920 

loop, 202.914 



161 



main to connect at base, 918 

main, 202, 904.3 

materials, 903 

pipe, deflned, 202 

separate, 717.7 

side, defined, 202 

sizes building sump, 717.6 

sizing, 920 

wet, 202, 911 

yoke, defined, 202 
Ventilation and light, 404. 1 
Venting, battery, 914.1 

circuit and loop, 914 

fixture traps-different levels, 910.2 

interceptors, 1004.7 

separate, 917.2 

stack, 202. 912 
Vents and venting, Chapter 9 

bar and fountain sink traps, 907 

circuit and loop, 914 

common vent, 202, 909 

fixture vent, 908 

frost closure, 905.2 

individual fixture reventing, 913 

main vents to connect at base, 9 1 8 

materials, 903 

offsets at an angle less than 45°, 917 

pneumatic ejectors, 915 

protection of trap seals, 901.2 

relief vents, 916 

size and length of vents, 920 

stack, 912 

vent grades and connections, 906 

vent headers, 919 

vent stacks, 904 

vent terminals, 905 

vents for fixture trap, 910 

wet venting, 9 1 1 
Vertical leader size, 11 08. 1 
Vertical pipe, defined, 202 
Vertical piping, 310.2 
Vertical rise, 906.2 
Violations and penalties, 107 

Wall-hung bowls, 403.3 

Washing machine, protection, 409.12.1 

residences, 409.12 

separate trap, 409.12.2 
Waste acid, piping, 703.6 

system, 903.6 
Waste outlet, laundry-tray, 409.6.1 

lavatories, 408. 1 

sink, 408.2 
Waste pipe, indirect, 804 

indirect, cleaning, 805.2 

indirect, connections, 804.3 

indirect, defined, 202 

indirect, length, 805 

indirect, material and size, 803 
Waste, clear water, 807.2 

continuous, defined, 202 

defined, 202 

disposal units and single stack 

systems. LI 04.5.6 

grinder, 409.5 

industrial, defined. 202 

liquid. 807.2 

pipe, defined. 202 

receptor installation. 807. 1 . 1 

relief outlet. 507.6 

stacks serving kitchen sinks. 716 
Waterclosel. 406. 409.13 
162 



public use of, 409.13.1 

seat, 409. 13.6 
Water distribution pipe, defined, 202 

tubing and fittings, 603, 61 1 
Water distribution system. B109 
Water distribution system-sizing, 607, Appendix F 
Water drain and connections. 409.9.1 
Water hammer arresters, air chambers, 607.8 

shock absorbers, 607.8 

hazard & noise. 607.8 
Water pumping and storage equipment, 609 
Water supply protection, 606 

controls, 610 

distribution, 608 

mandatory, 606. 1 

quality, 604 

system, 202, 612.7.4, C 108 

test, 104,311.3 

where required, 606.3 
Water tanks, cleaning, painting and repairing, 609.3 

drains, 609.7 

overflow, 609.6 
Water heaters and hot water storage tank, Ch. 5 
Water, heating equipment, 501.6 

main, defined, 202 

outlet, defined, 202 

pipes and sewer, 305.6 

pressure valves or regulators, 607.9 

pumping and storage equipment, 609 

relief valves, 507.3 

riser pipe, defined, 202 

service pipe, 608 

used for processing, 614.3 
Water-supply & distribution. Chapter 6 

allowance for character of water, 601 .9 

color code, 605 

disinfection of potable water supply piping, 601 .8 

hot- water distribution, 601 . 1 

miscellaneous, 614 

protection of potable water supply, 606 

quality of water supply, 604 

safely devices, 507 

sizing of water distribution system, 607 

water pumping & storage, 609 

water supply control, 610 

water supply distribution, 608, 61 1 

water supply mandatory, 601.2 

water-distribution pipe, tubing & fittings, 608. 61 1 
Welding or brazing, 309.4 
Wet vent, 202,911 
Wiped joints, 308.3 
Workmanship, 301.6 

Yoke vent, defined, 202 



Louisiana State Plumbing Code, 2000 edition© 



METRIC CONVERSIONS 



MULTIPLY 

Length 

Area 
Volume 



Mass 

Mass/unit 
length 

Mass/unit area 

Mass density 

Force 

Force/unit 
length 

Pressure 



stress, modulus 
of elasticity 

Second moment 
of area 

Section modulus 

Temperature 



Energy, work, 
quantity of heat 



Power 



Thermal 
conductance 
(U value) 

Thermal 
resistance 
(R value) 

Flow 



Illuminance 

Velocity (speed) 
Plane angle 



BY 



TO GET 



inches 
ft 


25.4 
0.3048 


sq in 


645.16 


sqft 


0.0929 


cu In 
cuft 
gal 


0.01639 
28.3169 
3,785 


lb 


0.4536 


pif (lb/ft) 


1 .4882 


psf (Ib/sq ft) 


4.882 


pcf(lb/cuft) 


16.02 


lb 


4.4482 


pIf (lb/ft) 


14.5939 


psi 

psf (Ib/sq ft) 

in. of Hg @ 60T 


6.895 
47.88 
3.37685 


psi 

psf (Ib/sq ft) 


6.895 
47.88 



in" 



in3 

°F-32 

"F + 459.67 

kWh 

Btu 

ft -lb (force) 

ton (refrig) 

Btu/s 

hp (electric) 

Btu/h 

Btu/f2»h-°F 



ft2-h-°F/Btu 



gpm 
cfm 

footcandle 
(Im/sq ft) 

mph 

"(angle) 



416,231 



16,387.064 

5/9 
5/9 

3.6 

1055 

1.3558 

3.517 
1.0543 
745.7 
0.2931 

5.6783 



0.1761 



0.0631 
0.4719 

10.76 



0.447 
0.01745 



mm 
m 

mm2 
m2 

L 
L 
L 

kg 

kg/m 

kg/m2 
kg/m^ 
N 
N/m 



kPa 

Pa 

kPa 

kPa 
Pa 

mm* 



mm3 



MJ 

J 

J 

kW 
kW 
W 
W 

W/m2 .K 



m2.K/W 



Us 
Us 

Ix (lux) 



m/s 
rad 



Louisiana State Plumbing Code, 2000 edition© 



163 









164 Louisiana State Plumbing Code. 2000 edition©