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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

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.

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)

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.

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.

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.

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)

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

21/4

41/2

llbOoz

31/4

41/2

1lb12oz

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

21/2

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

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.

•

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©

.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.

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.

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

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

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.

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.

,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 ^

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©

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

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

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

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

preparation/storage or utensil

curbed cleaning facility with

41-80

washing area.

floor drain on premises for

81-120

cleaning of mops/mop water

121-160

disposal.

For each

additional

Caring for Infants:

40 females

over 160,

One ex&a laundry tray, service

add

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

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)

classrooms, but not less than one

Attendance

each floor

Secondary

1-50

1-120 1

51-100

121-240 2

101-150

For each

151-200

additional

For each

1 20 persons

additional

over 240, add 1

50 persons

over 200,

add

Office^ and

100 sq ft

Persons

Male

Female

Persons Male

Female

Drinking Fountains

Public

per person

(total)

Persons Fixtures

Buildings^^

I-IOO 1

1-15

1-15 1

101-250 2

16-35

16-35 1

251-500 3

36-55

36-60 2

No less than one fixture each

56-100

61-125 2

floor subject to access.

101-150

For each

additional

1 20 persons

100 persons

over 125.

over 150,

add 1

1.5''

add

1.5'

(continued)

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)

Persons Fixtures

for areas of
commercial

applicable to the
single type

1-50

1-15

1-50 1

buildings of

occupancy(s)

50-100

16-35

101-250 2

multiple tenants^-'-^'

occupying the '

101-150

36-60

251-500 3

greatest aggregate

For each

61-125

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

1.57

over 125,

divided floor)

add

1.57

Retail

200 sq ft

Persons

Male

Female

Persons

Male

Female

Drinking Fountains

Stores6-20,23

per person

(total)

Persons Fixtures

1-35

1-15

1-100 1

36-55

16-35

2 ■

101-250 2

56-80

36-60

251-500 3

81-100

61-125

501-1000 4

101-150

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

1.757

All Retail Food Markets:

add

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)

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®

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)

Persons Fixtures

Establishments

1-25

1-150

1-100 1

with Club, or

26-50

151-200

101-250 2

Lounge '^•--'

51-100
101-300
For each
additional
200

persons
over 300,
add

3
4

201-400

For each

additional

200

persons

over 400.

add

Bar;

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

(total)
1-100

service sink.

51-100

101-200

Beauty Shops,

50 sq-ft

Persons

Male

Female

Persons

Male

Female

One drinking fountain and one

Barber Shops,

per person

(total)

service sink or other utility

Nail Salons, and

sink.

Tanning Facilities^

1-35

1-75

.^6-75

Heavy

Occupant

Persons

Male

Female

Persons

Male"*

Female''*

One drinking fountain for

manufacturing,"'

content per

(total)

each 75 persons.

warehouses"

shift.

One shower for each 1 5

foundries, and

substantiated

1-10

1-15

persons exposed to

similar

by owner.

11-25

16-35

excessive heat or to skin

establishments'^-'^

Also see

26-50

36-60

contamination with

407.3.2

51-75

61-90

poisonous, infectious, or

76-100

91-125

irritating material.

For each

additional

60 persons

100 persons

over 100.

over 125,

add

0.l7

add

0.l7

Light Mfg. '0

Occupant

Persons

Male

Female

Persons

Male'"*

Female''*

One drinking fountain for

Light

content per

(total)

each 75 persons.

Warehousing ' '
and workshops.

shift,
substantiated

One shower for each 1 5
persons exposed to

1-25

1-35

etc. >2-13

by owner.

26-75

36-100

excessive heat or to skin

Also see

76-l(X)

101-200

contamination with

407.3.2

For each
additional
60 persons
over 100,
add

For each
additional
100 persons
over 200,
add

poisonous, infectious, or
irritating material.

(continued)

•

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)

75 persons.

(calculated
on sleeping

Washing machine may

be used in lieu of laundry trays. '''

1-10

1-12 1

area only)

11-30

13-30 2

One shower or bathtub for each

31-100

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

add

Places of Public

70 sq ft per

Persons

Male

Female

Persons Male

Female

Drinking Fountains

Assembly

person

(total)

Persons Fixtures

without seats and

(calculated
from

Waiting Rooms

1-50

1-200 1

1-100 1

at Transportation

assembly

51-100

201-400 2

101-350 2

Terminals and

area.) Other

101-200

401-750 3

Over 350 add one fixture

Stations

areas

considered
separately.
(See Office
or Public

201-400
For each
additional
250 persons
over 400.

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

water closets
and urinals.

Theaters,

Use the

Persons

Male

Female

Persons Male

Female

Drinking Fountains

Auditoriums,

number of

(total)

Persons Fixtures

Stadiums

seats as
basis

Arenas^'.and

1-50

1-200 1

1-100 1

Gymnasiums^^

51-100

201-400 2

101-350 2

101-200

401-750 3

Over 350 add one fixture

201-400

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

water closets
and urinals.

Churches,

Use the

Persons

Male

Female

Persons Male

Female

Drinking Fountains

Mosques,

number of

(total)

Persons Fixtures

Synagogues,
Temples, and

seats as

basis

1-70

1-200 1

1-100 1

other Places of

71-150

201-400 2

101-350 2

Worship26

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

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.

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

1-12 1

the station

the basis

9-12

1 3 or more 1

1 3 or more 2

property is

1 3 or more

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 or more 1

the initial

basis

Other

Miscellaneous

Buildings or

Occupancies-*

1 ft- = 0.0029 m-

Louisiana State Plumbing Code, 2000 ecJition©

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

•

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

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

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®

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.

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©

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

3 4

4 5

IsiHr
Rating Gal. ,

67 67

80 80

Nom. Tank
Sire. Gal.
Gas Water
Heaters

40 40

50 50

Elect. Water
Heaters

66 66

80 80

Oil Water
Heaters

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.

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

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

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©

Table 603
Water Pipe and Fitting Materials

Table 603 (continued)
Water Pipe and Fitting Matenals

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

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.

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.

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

IVIanifold

Fixture

Individual

Supply

Distribution

Pipe Size

LineSize

Type of Fixture or Device

(in.)

Bathtubs (60" x 32" and smaller)

'/2

Bathtubs (Larger than 60" x 32")

'/2

Combination Sink and Tray

'/2

Drinking Fountain

^/8

•/2

Dishwasher (Domestic)

•/2

''2

Kitchen Sink, Residential

''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

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)

^/8

'/2

Hose Bibbs

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

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 1/4

1 1/2

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

11/4

1 1/2

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

>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 1/2
2

Up to 750
751 to 1500
1501 to 3000

2 1/2

3001 to 5000
5001 to 7500
Over 7500

1 In = 25.4 mm
1 gal = 3.7854 L

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.

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®

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.

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©

48 Louisiana State Plumbing Code. 2000 edition®

CHAPTER?

SANITARY DRAINAGE

•

•.

701 GENERAL

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

(continued)

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.

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.

.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®

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

Bathtub^ (with or without

overhead shower) or whirlpool

attachments

Bidet

Combination sink and tray

Combination sink and tray with

food disposal unit

Dental unit or cuspidor

Dental lavatory

Drinking fountain

1/2

Dishwashing machine^ domestic.
Floor drains^

Kitchen sink, domestic

Kitchen sink, domestic with food

waste grinder and/or dishwasher

Lavatory^

Lavatory, barber, beauty parlor

Lavatory, surgeon's

Laundry tray (1 or 2

compartments)

Shower stall, domestic

Showers (group) per head^

Sinks

Surgeon's

Flushing rim (with valve)

Service (trap standard)

Service ("p" trap)

Pot, scullery, etc.^

Urinal, pedestal, siphon

jet, blowout

Urinal, wall lip

Urinal, Washout

Washing machines

(commercial)^

Washing machine (residential)

Wash sink (circular or multiple)

each set of faucets

Water closet, flushometer

tank, public or private

Water closet, private installation

Water closet, public installation

1 1/2

Nominal 1 1/2

1 1/2

Separate

traps 1 1/2

1 1/4

1 1/2

Small P.O. 1 1/4

Large P.O. 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.

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

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

203

273

363

180

216

250

390

480

575

700

840

1,000

1,400

1.600

1,920

2.300

2,500

2,900

3,500

4,200

3.900

4,600

5,600

6,700

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

MAY BE CONNECTED TO:

)NE STACK OF

MORE THAN 3 STORIES

DIAMETER

ANY
HORIZONTAL

3 STORIES
OR 3 ,

IN HEIGHT

TOTAL AT ONE

PIPES

FIXTURE

INTERVALS TOTAL for

STORY OR BRANCH

(in)

BRANCHl-4

MAXIMUM

STACK

INTERVAL

IV4

11/2

202

303

603

162

160

240

500

360

540 i

1,100

200

620

960

1,900

350

1,400

2,200

3,600

600

2,500

3,800

5,600

1,000

3,900

6,000

8,400

1,500

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.

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

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®

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.

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©

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

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

1I/4

3ft6in

11/2

1V4

5ft

. 11/2

1I/2

5ft

1I/2 .

6ft

8ft

10 ft

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®

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.

•

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 1/2

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.

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

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

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.

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©

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.)

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

21/2

1 1M

1 1/2

150

11/2

10 ,

100

200

20 1

150

21/2

100

300

— .

100

200

.600

■ —

—

200

500

—

400

100

260

1000

200

250

900

500

— .

—

180

700

200

—

_ -

—

350

1000

500

—

300

900

1100

—

200

700

350

200

400

1300

620

— ■

—

. —

125

300

1100

960

—

100

250

1000

1900

—

' —

—

200

700 .

600

—

150

500

1300

; 6

1400

100

400

1200

2200

—

■ —

—

■■'■—.

350

1100

3600

— .

—

■ —

—

250

800

1000

—

— ■

—

— .

125

1000

2500

- ■

■ . - ■ -

—

100

SCO

3800

■

350

5600

—

■ —

— ■

—

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

180

1 in = 25.4 mm

1 ft = 0.3048 m

30 -

—

10O

,—

200

—

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®

•

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®

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.

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®

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®

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

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)

720

21/2

1300

2200

4600

8650

13,500

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©

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©

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

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

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®

•

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

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

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

SBCCI Standard Building Code,

201.3,202,

1994 Edition

303.8.3.1,304.2.2

306.1.407.4,

609.5, 616, L104.8

—

1108.5

SBCCI Standard Fire Prevention Code,

201.3

1994 Edition

SBCCI Standard Gas Code,

201.3, 616

1994 Edition

SBCCI Standard Mechanical Code,

201.3.616

1994 Edition

UL 174-1996, Water Heaters, Household Electric 503. 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

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

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

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

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®

Figure Al 01 .2

Table A1 01 .2

Scupper Sizing Table

Roof Area (sq U

Head

Lengtihi (L) of Weir (Inches)

(H)

loclhes

273

418

562

851

1,139

1,427

1.715

734

1,141

1.549

2,365

3.180

3.996

4,813

1,274

2,023

2,772

4,270

5.768

7.267

8,766

1,845

2,999

4,152

6,460

8,766

11,073

13.381

2,966

5,087

7.204

11,442

15,680

19,918

24.160

Table based on rainfall of 4 inches per hour.

•

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©

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

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©

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.

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.

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®

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.

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©

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®

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.

•

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

Cooling Towers

2. .

Chemical Tanks

Commercial Dishwashers in commercial

establishments

Ornamental Fountains

Swimming Pools, Spas, Hot Tubs

Baptismal Fonts

Animal Watering Troughs

Agricultural Chemical Mixing Tanks

Water Hauling Tanks

Reduced Pressure Principle Backflow Preventers

Commercial Boilers

Air Conditioning, Chilled Water Systems

Air Conditioning, Condenser Water Systems

4. ■

Pot-type Chemical Feeders

Lawn Sprinklers with Fertilizer Injection

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

Laboratory and/or Medical Aspirators

Flushing Rim Bedpan Washers

Garbage Can Washers

Laboratory or Other Sinks with threaded or

serrated nozzles

5: ■

Flushometer Operated Fixtures

Commercial Washing Machines

Lawn Sprinklers

Hose Bibbs

Commercial Dishwashers in commercial

establishments

Notes:

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

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;

(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;

(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

MAIN

132 fu,
77 gpm ■

FLOOR 1
264 fu.
104.5 gpm

M BFP

54"

150'

-132fu, 779pm

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

Equiva-

Total

Friction

Excess

lent

equiva-

loss per

Doss In

pressure

length

lent

100' of

equiva-

over

length

trial

lent

friction

Lbs. per

Gal. per

Length

Trial

fKtIngs

C0L4

size

length

losses

square

min.

pipe

and

pipe

col. 8 »

(psi)

Inch

through

section

size

valves

coL6

(psI)

col. 7

Description

(psi)

section

(«)

(In)

(ft)

(100 ft)

(psI)

Line

Seivite and cold
water distribulion

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

21/2

0.66

3.3

2.38

10&0

21/2

2.5

0.10S

3.2

0.34

77.0

21/2

Oil

1.9

0.40

77.0

ISO

21/2

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

21/2

9.6

0.64

3.3

2.1

38.0

9.0

0.17

1.4

0.24

28.6

11/2

0.18

3.2

058

28.6

150

11/2

1.64

3.2

525

28.6

150

11/2

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

Bathtub

Bidet

Combination fixture

Dishwashing nnachine

Drinking fountain

Kitchen sink

Laundry trays (1 to 3)

Lavatory

Service sink

Shower head

Urinal

Washing machine (8 lbs.)

Washing machine (15 lbs.)

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

■ 14

3.0

4.0

1.5

2.0

2.25

3.0

1.4

1,4

0.25

1.0

1.4

3.0

4.0

1.0

1.4

0.5

0.7

1.5

2.0

2.25

3.0

4.0

1.0

1.4

10.0

5.0

3.0

1.0

1.4

2.25

3.0

4.0

6.0

2.2

10.0

5.0

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)

3.0 0.04104

5.0 0.0684

6.5 0.86892

8.0 1.06944

9.4 1.256592

15.0

2.0052

10.7 1.430376

17.4

2.326032

11.8 1.577424

19.8

2.646364

12.8 1.711104

22.2

2.967696

13.7 1.831416

24.6

3.288528

14.6 1.951728

27.0

3.60936

15.4 2.058672

27.8

3.716304

16.0 2.13888

28.6

3.823248

16.5 2.20572

29.4

3.930192

17.0 2.27256

30.2

4.037136

17.5 2.3394

31.0

4.14408

18.0 2.90624

31.8

4.241024

18.4 2.459712

32.6

4.357968

18.8 2.513184

33.4

4.464912

19.2 2.566656

34.2

4.571856

19.6 2.620128

35.0

4.6788

21.5 2.87412

38.0

5.07984 •

23.3 3.114744

42.0

5.61356

24.9 3.328632

44.0

5.88192

26.3 3.515784

46.0

6.14928

27.7 3.702936

48.0

6.41664

29.1 3.890088

50.0

6.684

32.0 4.27776

54.0

7.21872

35.0 4.6788

58.0

7.75344

38.0 5.07984

61.2

8.181216

41.0 5.48088

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

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 1/4

1 1/2

21/2

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

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 1/4

1 1/2

21/2

45° elbow (wrought)

o;5

0.5

1.0

2.0

3.0

4.0

90° elbow (wrought)

0.5

1.0

2.0

3.0

Tee, run (wrought)

0.5

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

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

1.0

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=;

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

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)

1 1/2

11/2 (Note 1)

2 (Note 2)

and

3 (Note 1)

3 (Note 2)

and

4 (Note 1)

4 (Note 2)

and

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)

3/4

1 1/4

1 1/2

1 1/2 (Note 1)

3 or

2 or

lor

1 1/2 (Note 2)

2 and

2 (Note 1)

6 or

3 or

2 or

2 (Note 2)

3 and

2 (Note 2)

2 and

1 and

2 (Note 2)

land

3 (Note 1)

15 or

7 or

5 or

3 (Note 2)

1 and

2 and

land

Sand

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.

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.

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

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

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

-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 ®

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

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

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

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

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

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

•

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

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-

131

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:

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®

^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

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

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.

Sinic

Wash Basin

- 3

Bathtub

Shower Stall

Garbage Disposal

I fixture group

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.)

20 (No W.C.)

200(NoW.G.)

850

2700

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

■ —

100

- 230

430

1.050

780 .

1,500

3,000

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.

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

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'/.

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

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®

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

•

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 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.

^^w

2° LOCAL
VEWT

2° LOCAL
VENT

VENT 1/2 SIZE OF
Oim£T WASTE 2 WAY CO.

9'-0°

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

"iW^^p^nW^

OMIT

J- i

ini

2 WAY
CLEANOUT

-2" VENT

rr TTTn

^OUTLET

STATIC WATER
LEVEL

GROUT WATER TIGHT

IDO-

SUITABLE
SUPPORT

SIZES BASED ON NUMBER OF SIT DOWN PERSONS

INTERCEPTOR

DIM. A

DIM.B

DIM.C

SIZE1

12"

36"

SIZE 2

12"

36"

48"

^I^K3

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

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

Determine capacity in

Contents in gallons

gallons.

11224 =59 g gallons

1 gal = 231 cubic

231

inches.

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.

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.

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

completely drain the

fixture.

Actual

Drainage

Flow rate = Load

Drainage

period

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-

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. \

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

152

•

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

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

•

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

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

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

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

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

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

0.4536

pif (lb/ft)

1 .4882

psf (Ib/sq ft)

4.882

pcf(lb/cuft)

16.02

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/m

kg/m2
kg/m^
N
N/m

kPa

kPa
Pa

mm*

mm3

kW
kW
W
W

W/m2 .K

m2.K/W

Us
Us

Ix (lux)

m/s
rad

163

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