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Full text of "Connecticut Plumbing Code"

TABLE OF CONTENTS 

STATE BUILDING CODE 

2005 CONNECTICUT SUPPLEMENT 

Repealed 29-252-1 c 

State Building Code - Connecticut Supplement 29-252-1 d 

Section Page 

Amendments to the 2003 International Building Code 2 

Amendments to the ICC/ANSI All 7.1 -2003 63 

Amendments to the 2003 International Existing Building Code 65 

Amendments to the 2003 International Plumbing Code 74 

Amendments to the 2003 International Mechanical Code 81 

Amendments to the 2003 International Energy Conservation Code 87 

Amendments to the 2003 International Residential Code 90 

Amendments to the 2005 NFPA 70 National Electrical Code 112 



74 



AMENDMENTS TO THE 2003 INTERNATIONAL PLUMBING CODE 

CHAPTER 1 - ADMINISTRATION 

(Amd) 101.1 Title. These regulations shall be known as the 2003 International Plumbing Code 
portion of the 2005 State Building Code, hereinafter referred to as "the code" or "this code". 

(Amd) 101.2 Scope. The provisions of this code shall apply to the erection, installation, 
alteration, repairs, relocation, replacement, addition to, use or maintenance of plumbing 
systems within the State of Connecticut. This code shall also regulate nonflammable medical 
gas, inhalation anesthetic, vacuum piping, nonmedical oxygen systems and sanitary and 
condensate vacuum collection systems. The installation of fuel gas distribution piping and 
equipment, fuel gas-fired water heaters and water heater venting systems shall be regulated in 
accordance with Section 101.2.1. The provisions of appendices B, C, D, E, F and G shall be 
considered part of this code. 
Exceptions: 

1 . Detached one- and two-family dwellings and multiple single-family dwellings 
(townhouses) not more than three stories high with separate means of egress and 
their accessory structures shall comply with the 2003 International Residential Code. 

2. Plumbing systems in existing buildings undergoing repair, alteration, addition or 
change of occupancy shall be permitted to comply with the 2003 International Existing 
Building Code. 

(Add) 101.2.1 Fuel gas. The 2003 International Fuel Gas Code is not adopted by the State of 
Connecticut. In addition to the requirements of this code, the installation and operation of gas 
equipment and piping shall comply with sections 29-329, 29-330 and 29-331 of the Connecticut 
General Statutes, and the regulations known as the Connecticut Gas Equipment and Piping 
Code adopted by the Commissioner of Public Safety under authority of section 29-329 of the 
Connecticut General Statutes, and the regulations known as the Connecticut Liquefied 
Petroleum Gas and Liquefied Natural Gas Code adopted by the Commissioner of Public Safety 
under authority of section 29-331 of the Connecticut General Statutes. References to the 
International Fuel Gas Code within the body of the model document shall be considered to be 
references to such statutes and regulations. 

(Add) 101.2.2 Electrical. The 2003 ICC Electrical Code is not adopted by the State of 
Connecticut. The provisions of the 2005 NFPA 70 National Electrical Code shall apply to the 
installation of electrical systems, including alterations, repairs, replacement, equipment, 
appliances, fixtures, fittings and appurtenances thereto. References to the 2003 ICC Electrical 
Code within the body of the model document shall be considered to be references to the 2005 
NFPA 70 National Electrical Code. 

(Amd) 102.6 Historic buildings. Pursuant to section 29-259 of the Connecticut General 
Statutes, exemptions may be granted to the provisions of this code for historic structures, as 
defined by section 10-320c of the Connecticut General Statutes, which have been classified as 
such in the State Register of Historic Places, as long as the provisions of subsection (b) of 
section 29-259 of the Connecticut General Statutes are adhered to and provided that such 
exemptions shall not affect the safe design, use or construction of such property. 

(Del) SECTION 103 - DEPARTMENT OF PLUMBING INSPECTION. Delete Section 103 in its 
entirety and replace with the following: 

(Add) SECTION 103 - ENFORCEMENT AGENCY 



75 



(Add) 103.1 Creation of enforcement agency. Each town, city and borough shall create an 
agency whose function is to enforce the provisions of this code. The official in charge thereof 
shall be known as the building official. 

(Add) 103.2 Appointment. The chief executive officer of any town, city or borough shall 
appoint an officer to administer this code, and this officer shall be known as the "building official" 
in accordance with section 29-260 of the Connecticut General Statutes, and referred to herein 
as the building official, local building official, or code official. 

(Add) 103.3 Employees. In accordance with the prescribed procedures and regulations of the 
town, city or borough, and with the concurrence of the appointing authority, the building official 
shall have the authority to appoint an assistant building official, related technical officers, 
inspectors, plan examiners and other employees. Such employees shall have the powers as 
regulated by the town, city or borough, and by the State of Connecticut. 

(Add) 103.4 Restriction of employees. An official or employee connected with the agency 
created to enforce the provisions of this code pursuant to Section 1 03. 1 , except one whose only 
connection with it is that of a member of the board of appeals established under the provisions 
of Section 112, shall not be engaged in or directly or indirectly connected with the furnishing of 
labor, materials or appliances for the construction, addition, alteration, repair or maintenance of 
a building located in the town, city or borough in which such official or employee is employed, or 
the preparation of construction documents therefore, unless that person is the owner of the 
building. Such officer or employee shall not engage in any work that conflicts with official duties 
or with the interests of the agency. 

(Amd) 104.1 General. The building official is hereby authorized and directed to enforce the 
provisions of this code. The building official shall have the authority to adopt policies and 
procedures in order to clarify the application of its provisions. Such policies and procedures 
shall be in compliance with the intent and purpose of this code. Such policies and procedures 
shall not have the effect of waiving requirements specifically provided for in this code, nor shall 
they have the effect of establishing requirements in excess of those set forth in this code. 

(Amd) 104.2 Rule making authority. Pursuant to the provisions of subsection (a) of section 
29-252 of the Connecticut General Statutes, the State Building Inspector and the Codes and 
Standards Committee shall, jointly, with the approval of the Commissioner of Public Safety, 
adopt and administer a State Building Code for the purpose of regulating the design, 
construction and use of buildings or structures to be erected and the alteration of buildings or 
structures already erected and make such amendments thereto as they, from time to time, 
deem necessary or desirable. 

(Amd) 104.5 Right of entry. In accordance with the provisions of subsection (d) of section 29- 
261 of the Connecticut General Statutes, the building official or his assistant shall have the right 
of entry to such buildings or structures, except single-family residences, for the proper 
performance of his duties between the hours of nine a.m. and five p.m., except that in the case 
of an emergency, he shall have the right of entry at any time, if such entry is necessary in the 
interest of public safety. On receipt of information from the local fire marshal or from any other 
authentic source that any building in his jurisdiction, due to lack of exit facilities, fire, 
deterioration, catastrophe or other cause, is in such condition as to be a hazard to any person 
or persons, the building official or his assistant shall immediately make inspection in accordance 
with the provisions of section 29-393 of the Connecticut General Statutes. 

(Amd) 105.1 Modifications. The State Building Inspector may grant variations or exemptions 
from, or approve equivalent or alternative compliance with, the State Building Code where strict 
compliance with the State Building Code would entail practical difficulty or unnecessary 



76 



hardship, or is otherwise adjudged unwarranted, provided that the intent of the law shall be 
observed and public welfare and safety be assured. Any person aggrieved by any decision of 
the State Building Inspector may appeal to the Codes and Standards Committee within 14 days 
after mailing of the decision in accordance with subsection (b) of section 29-254 of the 
Connecticut General Statutes. 

(Add) 105.1.1 Records. The application for modification, variation or exemption and the 
decision of the State Building Inspector shall be in writing and shall be officially recorded with 
the application for a building permit in the permanent records of the building department. 

(Add) 105.1.2 Accessibility exemptions. Any variation of or exemption from any provisions 
relating to accessibility to, use of, and egress from, buildings and structures as required herein 
shall be permitted only when approved by the State Building Inspector and the Executive 
Director of the Office of Protection and Advocacy for Persons with Disabilities, acting jointly, 
pursuant to subsection (b) of section 29-269 of the Connecticut General Statutes. Any person 
aggrieved by the joint decision of the State Building Inspector and the Executive Director of the 
Office of Protection and Advocacy for Persons with Disabilities may appeal to the Codes and 
Standards Committee within 30 days after such decision has been rendered in accordance with 
subsection (b) of section 29-269 of the Connecticut General Statutes. 

(Add) 106.2.1 State agency exemptions. A state agency shall not be required to obtain a 
building permit from the local building official. A state agency shall obtain a building permit for 
construction or alteration of state buildings or structures from the State Building Inspector in 
accordance with the provisions of section 29-252a of the Connecticut General Statutes. 

(Amd) 106.4 By whom application is made. Application for a permit shall be made by the 
owner in fee or by an authorized agent. If the application is made by a person other than the 
owner in fee, it shall be accompanied by an affidavit of the owner or a signed statement of the 
applicant witnessed by the building official or such official's designee to the effect that the 
proposed work is authorized by the owner in fee and that the applicant is authorized to make 
such application. If the authorized agent is a contractor, the provisions of section 20-338b of 
the Connecticut General Statutes shall be followed. The full names and addresses of the 
owner, agent and the responsible officers, if the owner or agent is a corporate body, shall be 
stated in the application. 

(Amd) 106.5 Permit issuance. The building official shall examine or cause to be examined 
applications for permits and amendments thereto within 30 days after filing and either issue or 
deny a permit within such 30 day period. If the application or construction documents do not 
conform to the requirements of this code and pertinent laws, the building official shall reject 
such application in writing, stating the reasons therefore. If the building official is satisfied that 
the proposed work conforms to the requirements of this code and applicable laws, statutes, 
regulations and ordinances, the building official shall issue a permit therefore as soon as 
practicable. 

(Amd) 106.5.6 Retention of construction documents. One set of approved construction 
documents shall be retained by the building official for a period as set forth in the 
records/disposition schedule adopted pursuant to chapter 188 of the Connecticut General 
Statutes. 

Exception: In accordance with the provisions of subsection (e) of section 29-261 of 
the Connecticut General Statutes, upon receipt of a written request signed by the 
owner of plans and specifications on file for a single-family dwelling or out-building, the 
building official shall immediately return the original plans and specifications to the 
owner after a certificate of occupancy is issued with respect to the plans and 
specifications. 



77 



(Del) 106.6.1 Work commencing before permit issuance. Delete without substitution. 

(Amd) 106.6.2 Fee schedule. Each municipality shall establish a schedule of fees for each 
construction document review, building permit, and certificate of occupancy. A schedule of 
adopted fees shall be posted for public view. 

(Amd) 106.6.3 Fee refunds. In the case of the revocation of a permit or abandonment or 
discontinuance of a building project, the portion of the work actually completed shall be 
computed and any excess fee for the incomplete work shall be returned to the permit holder 
upon written request. All plan examination and permit processing fees and all penalties that 
have been imposed on the permit holder under the requirements of this code shall first be 
collected. 

(Add) 107.1.3 Posting of required inspections. A schedule of required inspections shall be 
compiled by the code official. The schedule shall be posted in the building department for 
public view. 

(Add) 107.6. Notification of inspection and testing results. Notification as to passage or 
failure, in whole or in part, of any required inspection or test shall be made in writing by the 
building official or his duly authorized representative and shall be left at the job site or delivered 
to the permit holder. It shall be the duty of the permit holder to ascertain the results of required 
inspections. 

(Amd) 108.4 Violation penalties. Any person who violates any provision of this code shall be 
fined not less than two hundred nor more than one thousand dollars or imprisoned not more 
than six months or both, pursuant to section 29-254a of the Connecticut General Statutes. 

(Amd) 108.5 Stop work orders. Upon notice from the building official, work on any plumbing 
system that is being done contrary to the provisions of this code or in a dangerous or unsafe 
manner shall immediately cease. Such notice shall be in writing and shall be given to the owner 
of the property, or to the owner's agent, or to the person doing the work. The notice shall state 
the conditions under which the work is authorized to resume. Where an emergency exists, the 
building official shall not be required to give a written notice prior to stopping the work. Any 
person who shall continue any work in or about the structure after having been served with a 
stop work order, except such work as that person is directed to perform to remove a violation or 
unsafe condition, shall be liable for penalties in accordance with Section 108.4. 

(Del) SECTION 109 - MEANS OF APPEAL. Delete this section in its entirety and replace with 
the following: 

(Add) 109.1 Means of appeal. Means of appeal shall be in accordance with Section 1 12 of the 
2003 International Building Code portion of the 2005 State Building Code. 

CHAPTER 2 - DEFINITIONS 

(Amd) 201.3 Terms defined in other codes. Where terms are not defined in this code and are 
defined in other portions of the 2005 State Building Code, such terms shall have the meanings 
ascribed to them as in those codes. 

(Add) 202.1 Definitions. Add or amend the following definitions: 



78 



(Add) BUILDING OFFICIAL. The officer or other designated authority charged with the 
administration and enforcement of this code, or a duly authorized representative. Also known 
as the local building official or the code official. 

(Amd) REGISTERED DESIGN PROFESSIONAL. An architect, engineer or interior designer, 
registered or licensed to practice professional architecture, engineering or interior design, as 
defined by the statutory requirements of the professional registration laws of the State of 
Connecticut, and acting within the scope of his or her practice. 

CHAPTER 3 - GENERAL REGULATIONS 

(Amd) 301.3 Connection to drainage system. All plumbing fixtures, drains, appurtenances 
and appliances used to receive or discharge liquid wastes or sewage shall be directly 
connected 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. 

Exception: Bathtubs, showers, lavatories, clothes washers and laundry sinks shall not 
be required to discharge to the sanitary drainage system where such fixtures discharge 
to an approved gray water recycling system in accordance with Appendix C of this code. 

(Amd) 305.6 Freezing. A water, soil or waste pipe shall not be installed outside of a building, 
or concealed in outside walls or in any place subjected to freezing temperature, unless 
adequate provision is made to protect such pipe from freezing by insulation or heat or both. 
Water service pipe shall be installed not less than 48 inches deep. 

(Del) 305.6.1 Sewer depth. Delete without substitution. 

(Del) 312.9.1 Inspections. Delete without substitution. 

(Amd) 312.9.2 Testing. Required reduced pressure principle backflow preventer assemblies, 
double check-valve assemblies, pressure vacuum breaker assemblies, reduced pressure 
detector fire protection backflow prevention assemblies, double check detector fire protection 
backflow prevention assemblies, hose connection backflow preventers and spill-proof vacuum 
breakers shall be tested at the time of installation by individuals or agencies qualified to perform 
such inspections. It shall be the responsibility of the owner to have such tests performed and 
copies of test reports shall be given to the local building official. The testing procedure shall be 
performed in accordance with one of the following standards: 

ASSE 5013-98, ASSE 5015-98, ASSE 5020-98, ASSE 5047-98, ASSE 5048-98, 
ASSE 5052-98, ASSE 5056-98, CAN/CSA B64. 10-01 

CHAPTER 4 - FIXTURES, FAUCETS AND FIXTURE FITTINGS 

(Amd) 403.1 Minimum number of fixtures. Plumbing fixtures shall be provided for the type of 
occupancy and in the minimum number shown in Table 403.1. Types of occupancies not shown 
in Table 403.1 shall be considered individually by the building official. The number of occupants 
shall be determined in accordance with Chapter 10 of the 2003 International Building Code. 
Occupancy classification shall be determined in accordance with Chapter 3 of the 2003 
International Building Code. 

Exceptions: 

1. The following minimum fixtures shall be provided in Group R-1 bed and breakfast 
establishments.' Water closets - one per two guest rooms; lavatories - one per two 
guest rooms; bathtubs/showers - one per two guest rooms. Plumbing fixtures in 



79 



Group R-1 bed and breakfast establishments shall be permitted to be accessed from 
hallways and corridors and to be shared by guests. 
2. Child washing and diaper changing facilities shall be permitted in lieu of bathtubs or 
showers in Group 1-4 child care occupancies. 

(Amd) 403.1.1 Unisex toilet and bath fixtures. Fixtures located within unisex toilet and bathing 
rooms required by Section 1109.2.1 of the 2003 International Building Code are permitted to be 
included in determining the minimum required number of fixtures for assembly and mercantile 
occupancies. Such fixtures shall comply with Section 404 of this code. 

(Add) 403.6.3 Food service establishments. Access to public toilet facilities in food service 
establishments shall not require passage through food preparation areas. 

(Amd) 405.3.1 Non-accessible water closets, urinals, lavatories and bidets. Water closets, 
urinals, lavatories and bidets that are not required to be accessible to or adaptable for persons 
with disabilities in accordance with the 2003 International Building Code shall be installed in 
accordance with the requirements of this section. A water closet, urinal, lavatory or bidet shall 
not be set closer than 15 inches from its center to any side wall, partition, vanity or other 
obstruction, or closer than 30 inches center-to-center between water closets, urinals or adjacent 
fixtures when not separated by compartment enclosures. There shall be at least a 21 -inch 
clearance in front of the water closet, urinal or bidet to any wall, fixture or door. Water closet 
compartments shall not be less than 30 inches wide or 60 inches deep. There shall be at least 
a 21 -inch clearance in front of a lavatory to any wall, fixture or door (see Figure 405.3.1). 

(Add) 412.5 Connection required. Floor drains shall connect to the sanitary sewer system or 
to an on-site holding tank(s) when the discharge contains petroleum-based oil, grease, sand or 
other harmful or hazardous substances. Interceptors and separators shall be provided in 
accordance with Section 1003 when floor drains connect to the sanitary sewer system, and 
shall be installed in accordance with the Public Health Code of the State of Connecticut 
adopted pursuant to section 19a-36 of the Connecticut General Statutes. Floor drains shall not 
be connected to a storm sewer, a storm drainage system or a storm building drain. Floor drains 
shall have trap seals in accordance with Section 1002.4. 

CHAPTER 6 - WATER SUPPLY AND DISTRIBUTION 

(Amd) 608.17 Protection of individual water supplies. An individual water supply shall be 
located and constructed so as to be safeguarded against contamination in accordance with the 
Public Health Code of the State of Connecticut adopted pursuant to section 19a-36 of the 
Connecticut General Statutes. 

(Del) 608.17.1 through 608.17.8. Delete subsections and referenced table without substitution. 

CHAPTER 7 - SANITARY DRAINAGE 

(Amd) 701.2 Sewer required. Every building in which plumbing fixtures are installed and all 
premises having drainage piping shall be connected to a public sewer, where available, or an 
approved private sewage disposal system in accordance with the Public Health Code adopted 
under authority of section 19a-36 of the Connecticut General Statutes. 

CHAPTER 9 - VENTS 

(Amd) 904.1 Roof extension. All open vent pipes that extend through a roof shall be 
terminated at least 12 inches above the roof, except that where a roof is to be used for any 



80 



purpose other than weather protection, the vent extension shall be run at least 7 feet above the 
roof. 

(Del) 904.2 Frost closure. Delete without substitution. 

CHAPTER 12 - SPECIAL PIPING AND STORAGE SYSTEMS 

(Amd) 1201.1 Scope. The provisions of this chapter shall govern the design and installation of 
piping and storage systems for non-flammable medical gas systems and non-medical oxygen 
systems. All maintenance and operation of such systems shall be in accordance with the 2005 
State Fire Safety Code. 

CHAPTER 13 - REFERENCED STANDARDS 

(Amd) National Fire Protection Association 

|k I ^ Q M 1 Battery march Park 

IM r K A Quincy, MA 02269-9101 

Title 

50 — 01 Bulk Oxygen Systems at Consumer 1203.1 

Sites 
51 — 02 Design and Installation of Oxygen- 1203.1 

Fuel Gas Systems for Welding, 

Cutting, and Allied Processes 

70—05 National Electrical Code 502.1, 504.3, 1113.1.3 

99C— 02 Gas and Vacuum Systems 1202.1 

(Del) APPENDIX A - PLUMBING PERMIT FEE SCHEDULE. Delete Appendix A without 
substitution. 



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INTERNATIONAL 
CODE COUNCIL® 




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2003 International Plumbing Code® 



First Printing: February 2003 
Second Printing: May 2003 
Third Printing: March 2004 
Fourth Printing: May 2004 
Fifth Printing: March 2005 
Sixth Printing: October 2005 
Seventh Printing: February 2006 



ISBN # 1-892395-62-2 (soft-cover edition) 

ISBN # 1-892395-61-4 (loose-leaf edition) 

ISBN # 1-892395-84-3 (e-document) 



COPYRIGHT© 2003 

by 

INTERNATIONAL CODE COUNCIL, INC. 



ALL RIGHTS RESERVED. This 2003 International Plumbing Code© is a copyrighted work owned by the International Code 
Council, Inc. Without advance written permission from the copyright owner, no part of this book may be reproduced, distributed, or 
transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of example, 
and not limitation, photocopying, or recording by or in an information storage retrieval system). For information on permission to 
copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL 60478-5795 
(Phone 800-214-4321). 

Trademarks: "International Code Council," the "International Code Council" logo and the "International Plumbing Code" are 
trademarks of the International Code Council, Inc. 



PRINTED IN THE U.S.A. 



Internationally, code officials recognize the need for a modem, up-to-date plumbing code addressing the design and installation of 
plumbing systems through requirements emphasizing performance. The International Plumbing Code®, in this 2003 edition, is 
designed to meet these needs through model code regulations that safeguard the public health and safety in all communities, large 
and small. 

This comprehensive plumbing code establishes minimum regulations for plumbing systems using prescriptive and 
performance-related provisions. It is founded on broad-based principles that make possible the use of new materials and new 
plumbing designs. This 2003 edition is fiilly compatible with all the International Codes ("I-Codes") published by the Intemational 
Code Council (ICC), including the International Building Code, ICC Electrical Code, Intemational Energy Conservation Code, 
Intemational Existing Building Code, Intemational Fire Code, International Fuel Gas Code, International Mechanical Code, ICC 
Performance Code, International Private Sewage Disposal Code, International Property Maintenance Code, Intemational 
Residential Code, Intemational Urban- Wildland Interface Code and International Zoning Code. 

The Intemational Plumbing Code provisions provide many benefits, among which is the model code development process that 
offers an intemational fomm for plumbing professionals to discuss performance and prescriptive code requirements. This fomm 
provides an excellent arena to debate proposed revisions. This model code also encourages international consistency in the 
application of provisions. 



The first edition of the International Plumbing Code (1995) was the culmination of an effort initiated in 1994 by a development 
committee appointed by the ICC and consisting of representatives of the three statutory members of the Intemational Code Council: 
Building Officials and Code Administrators Intemational, Inc. (BOCA), Intemational Conference of Building Officials (ICBO) 
and Southern Building Code Congress Intemational (SBCCI). The intent was to draft a comprehensive set of regulations for 
plumbing systems consistent with and inclusive of the scope of the existing model codes. Technical content of the latest model 
codes promulgated by BOCA, ICBO and SBCCI was utilized as the basis for the development. This 2003 edition presents the code 
as originally issued, with changes approved through the ICC Code Development Process through 2002 . A new edition such as this is 
promulgated every three years. 

With the development and publication of the family of International Codes in 2000, the continued development and 
maintenance of the model codes individually promulgated by BOCA ("BOCA National Codes"), ICBO ("Uniform Codes") and 
SBCCI ("Standard Codes") was discontinued. This 2003 International Plumbing Code, as well as its predecessor — the 2000 
edition — is intended to be the successor plumbing code to those codes previously developed by BOCA, ICBO and SBCCI. 

The development of a single set of comprehensive and coordinated International Codes was a significant milestone in the 
development of regulations for the built environment. The timing of this publication mirrors a milestone in the change in stmcture of 
the model codes, namely, the pending Consolidation of BOCA, ICBO and SBCCI into the ICC. The activities and services 
previously provided by the individual model code organizations will be the responsibility of the Consolidated ICC. 

This code is founded on principles intended to establish provisions consistent with the scope of a plumbing code that adequately 
protects public health, safety and welfare; provisions that do not unnecessarily increase constmction costs; provisions that do not 
restrict the use of new materials, products or methods of construction; and provisions that do not give preferential treatment to 
particular types or classes of materials, products or methods of construction. 



The Intemational Plumbing Code is available for adoption and use by jurisdictions internationally. Its use within a governmental 
jurisdiction is intended to be accomplished through adoption by reference in accordance with proceedings establishing the juris- 
diction's laws. At the time of adoption, jurisdictions should insert the appropriate information in provisions requiring specific local 
information, such as the name of the adopting jurisdiction. These locations are shown in bracketed words in small capital letters in 
the code and in the sample ordinance. The sample adoption ordinance on page v addresses several key elements of a code adoption 
ordinance, including the information required for insertion into the code text. 



The International Plumbing Code is kept up to date through the review of proposed changes submitted by code enforcing officials, 
industry representatives, design professionals and other interested parties. Proposed changes are carefully considered through an 
open code development process in which all interested and affected parties may participate. 

The contents of this work are subject to change both through the Code Development Cycles and the governmental body that 
enacts the code into law. For more information regarding the code development process, contact the Code and Standard 
Development Department of the Intemational Code Council. 



While the development procedure of the International Plumbing Code assures the highest degree of care, ICC and the founding 
members of ICC — BOCA, ICBO, SBCCI — their members and those participating in the development of this code do not accept any 
liability resulting from compliance or noncompliance with the provisions because ICC and its founding members do not have the 
power or authority to police or enforce compliance with the contents of this code. Only the governmental body that enacts the code 
into law has such authority. 

Letter Designations in Front of Section Nurribers 

In each code development cycle, proposed changes to this code are considered at the Code Development Hearing by the 
International Plumbing Code Development Committee, whose action constitutes a recommendation to the voting membership for 
final action on the proposed change. Proposed changes to a code section whose number begins with a letter in brackets are 
considered by a different code development committee. For instance, proposed changes to code sections which have the letter [B] in 
front (for example, [BJ309.2), are considered by the International Building Code Development Committee at the Code 
Development Hearing. Where this designation is applicable to the entire content of a main section of the code, the designation 
appears at the main section number and title and is not repeated at every subsection in that section. 

The content of sections in this code which begin with a letter designation are maintained by another code development com- mittee 
in accordance with the following: [B]= International Building Code Development Committee; [E] = Intemational Energy 
Conservation Code Development Committee; [EB] = Intemational Existing Building Code Development Committee; [F] = 
Intemational Fire Code Development Committee. 

IVIarginal Markings 

Solid vertical lines in the margins within the body of the code indicate a technical change from the requirements of the 2000 edition. 
Deletion indicators ("►) are provided in the margin where a paragraph or item has been deleted. 



iv 2003 INTERNATIONAL PLUMBINQ CODE® 



ORDINANSE 

The International Codes are designed and promulgated to be adopted by reference by ordinance. Jurisdictions wishing to adopt the 
2003 International Plumbing Code as an enforceable regulation governing plumbing systems should ensure that certain factual 
information is included in the adopting ordinance at the time adoption is being considered by the appropriate governmental body. 
The following sample adoption ordinance addresses several key elements of a code adoption ordinance, including the information 
required for insertion into the code text. 



An ordinance of the [JURtSDlCTlOMI adopting the 2003 edition of the International Plumbing Code, regulating and governing the 
desigii, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use 
or maintenance of plumbing systems in the [JUR8SDIIQTI0N]; providing for the issuance of permits and collection of fees therefor; 
repealing Ordinance No. of the [JURISDICTIOM] and all other ordinances and parts of the ordinances in conflict therewith. 

The [GOVERNING BODY] of the [JURISDICTION] does ordain as follows: 



.That a certain document, three (3) copies of which are on file in the office of the [TITLE OF JURISDICTION'S KEEPER OF 
RECORDS] of [WAME OF JURISDJCTIOW] , being marked and designated as the International Plumbing Code, 2003 edition, including 
Appendix Chapters [FILL m THE APPEiMDlX CHAPTERS BEMQ ADOPTED], as published by the International Code Council, be and is 
hereby adopted as the Plumbing Code of the [JURISDICTION], in the State or [STATE NAME] regulating and governing the design, 
construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or 
maintenance of plumbing systems as herein provided; providing for the issuance of permits and collection of fees therefor; and each 
and all of the regulations, provisions, penalties, conditions and terms of said Plumbing Code on file in the office of the [jurisdiction! 
are hereby referred to, adopted, and made a part hereof, as if fully set out in this ordinance, with the additions, insertions, deletions and 
changes, if any, prescribed in Section 2 of this ordinance. 

SectJom 2. The following sections are hereby revised: 
Section 101.1. Insert: [MAME OF JUR8SDICTI0N] 

Section 106.6.2. Insert: [APPROPRtATE SCHEDULE] 

Section 106.6.3. Insert: [PERCEMTAGES IN TWO LOCATIOWS] 

Section 108.4. Insert: [OFFENSE, DOLLAR AMOUNT, NUMBER OF DAYS] 

Section 108.5. Insert: [DOLLAR AMOUNT IN TWO LOCATIONS] 

Section 305.6.1. Insert: [NUMBER OF INCHES IN TWO LOCATIONS] 

Section 904.1. Insert: [NU5V3BER OF INCHES] 

Sectnom S.That Ordinance No. of [JURISDICTION] entitled [FILL M HERE THE COiWPLETE TITLE OF THE ORDINANCE OR 

ORDINANCES IN EFFECT AT THE PRESENT TIME SO THAT THEY WILL BE REPEALED BY DEFINITE MENTION] and all other ordinances 
or parts of ordinances in conflict herewith are hereby repealed. 



.That if any section, subsection, sentence, clause or phrase of this ordinance is, for any reason, held to be unconstitutional, 
such decision shall not affect the validity of the remaining portions of this ordinance. The (GOVERNING BODY] hereby declares that it 
would have passed this ordinance, and each section, subsection, clause or phrase thereof, irrespective of the fact that any one or more 
sections, suosections, sentences, clauses and phrases be declared unconstitutional. 

Sectioini S.That nothing in this ordinance or in the Plumbing Code hereby adopted shall be construed to affect any suit or proceeding 
impending in any court, or any rights acquired, or liability incurred, or any cause or causes of action acquired or existing, under any 
act or ordinance hereby repealed as cited in Section 2 of this ordinance; nor shall any just or legal right or remedy of any character be 
lost, impaired or affected by this ordinance. 

Sectnom 6oThat the [JURISDICTION'S KEEPER OF RECORDS] is hereby ordered and directed to cause this ordinance to be published. 
(An additional provision may be required to direct the number of times the ordinance is to be published and to specify that it is to be 
in a newspaper in general circulation. Posting may also be required.) 



7.That this ordinance and the rules, regulations, provisions, requirements, orders and matters established and adopted 
hereby shall take effect and be in full force and effect [TIME period] from and af^er the date of its final passage and adoption. 



2003 INTERNATIONAL PLUMBING CODE® 



yi 2003 INTERNATIONAL PLUMeiNG CODE® 



miLE OF 



ITEMT^ 



i ADMINIS1 
Section 

101 General 1 

102 Applicability 1 

103 Department of Plumbing Inspection 2 

104 Duties and Powers of the Code Official 2 

1 05 Approval 2 

106 Permits 3 

107 Inspections and Testing 5 

108 Violations 6 

109 Means of Appeal 7 

CMAIPTEE2 DEFINITEONS 9 

Section 

201 General 9 

202 General Definitions 9 

CHAPTERS GENERAL REGULATIONS 17 

Section 

301 General 17 

302 Exclusion of Materials Detrimental 

to the Sewer System 17 

303 Materials 17 

304 Rodentproofing 17 

305 Protection of Pipes and Plumbing 

System Components 18 

306 Trenching, Excavation and Backfill 18 

307 Structural Safety 19 

308 Piping Support 19 

309 Flood Hazard Resistance 20 

3 1 Washroom and Toilet Room 

Requirements 20 

311 Toilet Facilities for Workers 21 

3 1 2 Tests and Inspections 21 

313 Equipment Efficiencies 22 

314 Condensate Disposal 22 

CHAPTER 4 FIXTURES, FAUCETS AND FIXTURE 

FITTINGS 23 

Section 

401 General 23 

402 Fixture Materials 23 

403 Minimum Plumbing Facilities 23 

404 Accessible Plumbing Facilities 26 

405 Installation Of Fixtures 26 

406 Automatic Clothes Washers 27 

407 Bathtubs 27 

408 Bidets 27 

409 Dishwashing Machines 28 

410 Drinking Fountains 28 

41 1 Emergency Showers and Eyewash 

Stations 28 

412 Floor and Trench Drains 28 

413 Food Waste Grinder Units 28 

414 Garbage Can Washers 28 

415 Laundry Trays 28 



416 Lavatories 28 

417 Showers 29 

418 Sinks 29 

419. . Urinals 29 

420 Water Closets 30 

421 Whirlpool Bathtubs 30 

422 Health Care Fixtures and Equipment 30 

423 Specialty Plumbing Fixtures 31 

424 Faucets and Other Fixture Fittings 31 

425 Flushing Devices for Water Closets and Urinals. ... 31 

426 Manual Food and Beverage 

Dispensing Equipment 32 

427 Floor Sinks 32 

CHAIPTER§ WATER HEATERS 33 

Section 

501 General 33 

502 Installation 33 

503 Connections 33 

504 Safety Devices 33 

505 Insulation 34 



DES' 
Section 

601 General 35 

602 Water Required 35 

603 Water Service 35 

604 Design of Building Water Distribution 

System 36 

605 Materials, Joints and Connections 37 

606 Installation of the Building Water 

Distribution System 41 

607 Hot Water Supply System 43 

608 Protection of Potable Water Supply 43 

609 Health Care Plumbing 48 

610 Disinfection of Potable Water System 48 

6 1 1 Drinking Water Treatment Units 49 

612 Solar Systems 49 

613 Temperature Control Devices and Valves 49 

CHAPTER? SANITARY DRAINAGE §1 

Section 

701 General 51 

702 Materials 51 

703 Building Sewer 53 

704 Drainage Piping Installation 53 

705 Joints 53 

706 Connections between Drainage Piping 

and Fittings 56 

707 Prohibited Joints and Connections 56 

708 Cleanouts 56 

709 Fixture Units 57 

710 Drainage System Sizing 59 

71 1 Offsets in Drainage Piping in Buildings 

of Five Stories or More 59 



S003 



7 1 2 Sumps and Ejectors 59 

713 Health Care Plumbing 61 

714 Computerized Drainage Design 62 

715 Backwater Valves 63 

CHAPTERS INBIRECT/SFECIAL WASTE ... 65 
Section 

801 General 65 

802 Indirect Wastes 65 

803 Special Wastes 66 

804 Materials, Joints and Connections 66 

CHAPTER 9 VENTS. ................ 67 

Section 

901 General 67 

902 Materials 67 

903 Vent Stacks and Stack Vents 67 

904 Vent Terminals 67 

905 Vent Connections and Grades 68 

906 Fixture Vents 68 

907 Individual Vent 68 

908 Common Vent 68 

909 Wet Venting 68 

910 Waste Stack Vent 69 

911 Circuit Venting 69 

912 Combination Drain And Vent System 70 

913 Island Fixture Venting 70 

9 1 4 Relief Vents— Stacks of More Than 

10 Branch Intervals 70 

915 Vents for Stack Offsets 71 

916 Vent Pipe Sizing 71 

917 Air Admittance Valves 72 

9 1 8 Engineered Vent Systems 73 

919 Computerized Vent Design 74 



75 

Section 

1001 General 75 

1002 Trap Requirements 75 

1003 Interceptors and Separators 75 

1004 Materials, Joints and Connections 77 

CHAP' 
Section 

1101 General 79 

1102 Materials 79 

1103 Traps 80 

1104 Conductors and Connections 80 

1105 Roof Drains 80 

1 1 06 Size of Conductors, Leaders and 

Storm Drains 80 

1107 Secondary (Emergency) Roof Drains 87 

1108 Combined Sanitary and Storm System 88 

1109 Values for Continuous Flow 88 

1110 Controlled Flow Roof Drain Systems 88 

1111 Subsoil Drains 88 

1112 Building Subdrains 88 

1113 Sumps and Pumping Systems 88 



CHAPTER 12 SPECIAL PIFMG AND 

STORAGE SYSTEMS . . 89 

Section 

1201 General 89 

1202 Medical Gases 89 

1203 Oxygen Systems 89 



3 REFERENCED STANDARDS. ... 91 

APPENDIX A PLUMBING PERMIT FEE 

SCHEDULE .............. 99 

Permit Issuance 99 

Unit Fee Schedule 99 

Other Inspections and Fees 99 



B RATES OF RAINFALL FOR 
VARIOUS CITIES. ...... 



APPENDIX C GRAY WATER RECYCLING 



101 



Section 

CI 01 Gray Water Recycling Systems 103 



APPENDIX D DEGREE DAY AND DESIGN 
TEMPERATURES. 



. 105 



APPENDIX E SIZING OF WATER PIPING 

SYSTEM ............... Ill 

Section 

ElOl General 109 

El 02 Information Required 109 

E103 Selection of Pipe Size 109 

E201 Selection of Pipe Size 128 

APPENDIX F STRUCTURAL SAFETY 131 

Section 

FlOl Cutting, Notching and Boring in 

Wood Members 131 



G VACUUM DRAINAGE SYSTEM . 133 
..................... 135 



2003 !NTERNAT!ONAL PLUMSiNG CODE® 



^o 



TOMDOM 



m 



SE©Ti©M 101 

KULl TitB®. These regulations shall be known as the Interna- 
tional Plumbing Code of [NAME OF JURISDICTION] hereinafter 
referred to as "this code." 



J. The provisions of this code shall apply to the 
erection, installation, alteration, repairs, relocation, 
replacement, addition to, use or maintenance of plumbing 
systems within this jurisdiction This code shall also regulate 
nonflammable medical gas, inhalation anesthetic, vacuum 
piping, nonmedical oxygen systems and sanitary and condensate 
vacuum collection systems. The installation of fuel gas 
distribution piping and equipment, fuel gas-fired water heaters 
and water heater venting systems shall be regulated by the 
International Fuel Gas Code. Provisions in the appendices shall 
not apply unless specifically adopted. 



1 . Detached one- and two- family dwellings and multiple 
single-family dwellings (townhouses) not more than 
three stories high with separate means of egress and 
their accessory structures shall comply with the Inter- 
national Residential Code. 

2. Plumbing systems in existing buildings undergoing re- 
pair, alteration, or additions, and change of occupancy 
shall be permitted to comply with the International 
Existing Building Code. 



The purpose of this code is to provide minimum 
standards to safeguard life or limb, health, property and public 
welfare by regulating and controlling the design, construction, 
installation, quality of materials, location, operation and main- 
tenance or use of plumbing equipment and systems. 

101.4 Severatoilltyo If any section, subsection, sentence, clause 
or phrase of this code is for any reason held to be unconstitu- 
tional, such decision shall not affect the validity of the remain- 
ing portions of this code. 



K 



i. The provisions of this code shall apply to all 
matters affecting or relating to structures, as set forth in Section 
101 . Where, in any specific case, different sections of this code 
specify different materials, methods of construction or other re- 
quirements, the most restrictive shall govern. 

102.2 Esnstisig innstellMloinis. Plumbing systems lawfully in 
existence at the time of the adoption of this code shall be per- 
mitted to have their use and maintenance continued if the use, 
maintenance or repair is in accordance with the original design 
and no hazard to life, health or property is created by such 
plumbing system. 

102.3 Mannstemarace. All plumbing systems, materials and ap- 
purtenances, both existing and new, and all parts thereof, shall 
be maintained in proper operating condition in accordance with 
the original design in a safe and sanitary condition. All devices 



or safeguards required by this code shall be maintained in com- 
pliance with the code edition under which they were installed. 

The owner or the owner's designated agent shall be responsible 
for maintenance of plumbing systems. To determine compli- 
ance with this provision, the code official shall have the author- 
ity to require any plumbing system to be reinspected. 

fEBJ 1(0)2.4 Addnltficiinis, alteraHnoniis or irepaars. Additions, al- 
terations, renovations or repairs to any plumbing system shall 
conform to that required for a new plumbing system without re- 
quiring the existing plumbing system to comply with all the re- 
quirements of this code. Additions, alterations or repairs shall 
not cause an existing system to become unsafe, insanitary or 
overloaded. 

Minor additions, alterations, renovations and repairs to ex- 
isting plumbing systems shall be permitted in the same manner 
and arrangement as in the existing system, provided that such 
repairs or replacement are not hazardous and are approved. 

[EB] 1(1D2.§ Ctoamge m occmpamcy. It shall be unlawfiil to make 
any change in the occupancy of any structure that will subject 
the structure to any special provision of this code without ap- 
proval of the code official. The code official shall certify that 
such structure meets the intent of the provisions of law govern- 
ing building construction for the proposed new occupancy and 
that such change of occupancy does not result in any hazard to 
the public health, safety or welfare. 

fEBJ 1®2.6 HisHork bMildiraigs, The provisions of this code re- 
lating to the construction, alteration, repair, enlargement, resto- 
ration, relocation or moving of buildings or structures shall not 
be mandatory for existing buildings or structures identified and 
classified by the state or local jurisdiction as historic buildings 
when such buildings or structures are judged by the code offi- 
cial to be safe and in the public interest of health, safety and 
welfare regarding any proposed construction, alteration, re- 
pair, enlargement, restoration, relocation or moving of 
buildings. 



102.7 Moved Ibiuiidnmgs. Except as determined by Section 
102.2, plumbing systems that are a part of buildings or 
structures moved into or within the jurisdiction shall comply 
with the provisions of this code for new installations. 



Us. The codes and stan- 
dards referenced in this code shall be those that are listed in 
Chapter 1 3 and such codes and standards shall be considered as 
part of the requirements of this code to the prescribed extent of 
each such reference. Where the differences occur between pro- 
visions of this code and the referenced standards, the provi- 
sions of this code shall be the minimum requirements. 



Any requirements 
necessary for the strength, stability or proper operation of an 
existing or proposed plumbing system, or for the public safety, 
health and general welfare, not specificaUy covered by this 
code shall be determined by the code official. 



2003 INTERMATDOWAL PLUMBING CODE® 



ADSUilNISTRATION 



SECTION 103 
DEPARTMENT OF PLUMBING 



ISPECTIOI 



103.1 General. The department of plumbing inspection is 
hereby created and the executive official in charge thereof shall 
be known as the code official. 

l©3o2 Appointment The code official shall be appointed by 
the chief appointing authority of the jurisdiction, and the code 
official shall not be removed from office except for cause and 
after full opportunity to be heard on specific and relevant 
charges by and before the appointing authority. 

103.3 Deputies. In accordance with the prescribed procedures 
of this jurisdiction and with the concurrence of the appointing 
authority, the code official shall have the authority to appoint a 
deputy code official, other related technical officers, inspectors 
and other employees. 

103.4 Liability. The code official, officer or employee charged 
with the enforcement of this code, while acting for the jurisdic- 
tion, shall not thereby be rendered liable personally, and is 
hereby relieved from all personal liability for any damage ac- 
cruing to persons or property as a result of any act required or 
permitted in the discharge of official duties. 

Any suit instituted against any officer or employee because 
of an act performed by that officer or employee in the lawful 
discharge of duties and under the provisions of this code shall 
be defended by the legal representative of the jurisdiction until 
the final termination of the proceedings. The code official or 
any subordinate shall not be liable for costs in any action, suit 
or proceeding that is instituted in pursuance of the provisions of 
this code, and any officer of the department of plumbing in- 
spection, acting in good faith and without malice, shall be free 
from liability for acts performed under any of its provisions or 
by reason of any act or omission in the performance of official 
duties in connection therewith. 



SECTION 104 
DUTIES AND POWERS OF THE CODE OFFICIAL 

104.1 GeoeraL The code official shall enforce all of the provi- 
sions of this code and shall act on any question relative to the 
installation, alteration, repair, maintenance or operation of all 
plumbing systems, devices and equipment except as otherwise 
specifically provided for by statutory requirements or as pro- 
vided for in Sections 104.2 through 104.8. 

104.2 Rule-making authority. The code official shall have au- 
thority as necessary in the interest of public health, safety and 
general welfare to adopt and promulgate rules and regulations 
to interpret and implement the provisions of this code to secure 
the intent thereof and to designate requirements applicable be- 
cause of local climatic or other conditions. Such rules shall not 
have the effect of waiving structural or fire performance re- 
quirements specifically provided for in this code, or of violat- 
ing accepted engineering practice involving public safety. 

104.3 Applications and permits. The code official shall re- 
ceive applications and issue permits for the installation and al- 
teration of plumbing, inspect the premises for which such 
permits have been issued, and enforce compliance with the 
provisions of this code. 



.4 Iijspectloms, The code official shall make all the required 
inspections, or shall accept reports of inspection by approved 
agencies or individuals. All reports of such inspections shall be 
in writing and be certified by a responsible officer of such ap- 
proved agency or by the responsible individual. The code offi- 
cial is authorized to engage such expert opinion as d eemed 
necessary to report on unusual technical issues that arise, sub- 
ject to the approval of the appointing authority. 

104.S Kiglht of emtry. Whenever it is necessary to make an in- 
spection to enforce the provisions of this code, or whenever the 
code official has reasonable cause to believe that there exists in 
any building or upon any premises any conditions or violations 
of this code that make the building or premises unsafe, insani- 
tary, dangerous or hazardous, the code official shall have the 
authority to enter the building or premises at all reasonable 
times to inspect or to perform the duties imposed upon the code 
official by this code. If such building or premises is occupied, 
the code official shall present credentials to the occupant and 
request entry. If such building or premises is unoccupied, the 
code official shall first make a reasonable effort to locate the 
ovmer or other person having charge or control of the building 
or premises and request entry. If entry is refused, the code offi- 
cial shall have recourse to every remedy provided by law to se- 
cure entry. 

When the code official shall have first obtained a proper in- 
spection warrant or other remedy provided by law to secure en- 
try, no owner or occupant or person having c harge, c are or 
control of any building or premises shall fail or neglect, after 
proper request is made as herein provided, to promptly permit 
entry therein by the code official for the purpose of inspection 
and examination pursuant to this code. 



1.6 Ideiiitifieation. The code official shall carry proper iden- 
tification when inspecting structures or premises in the perfor- 
mance of duties under this code. 



1.7 Notices and orders. The code official shall issue all nec- 
essary notices or orders to ensure compliance witli this code. 

104.8 Department records. The code official shall keep offi- 
cial records of applications received, permits and certificates 
issued, fees collected, reports of inspections, and notices and 
orders issued. Such records shall be retained i n the official 
records as long as the building or structure to which such 
records relate remains in existence unless otherwise provided 
for by other regulations. 



SECTION 105 
APPROVAL 

105,1 Modifications. Whenever there are practical difficulties 
involved in carrying out the provisions of this code, the code 
official shall have the authority to grant modifications for 
individual cases, provided the code official shall first find that 
special individual reason makes the strict letter of this code 
impractical and the modification is in conformity with the 
intent and purpose of this code and that such modification does 
not lessen health, life and fire safety requirements. The details 
of action granting modifications shall be recorded and entered 
in the files of the plumbing inspection department. 



2003 INTERNATIONAL PLUMBING CODE® 



ADMIWISTRATIOIM 



materfials, meiito©d§ aed eqimipmemil. The 
provisions of this code are not intended to prevent the installa- 
tion of any material or to prohibit any method of construction 
not specifically prescribed by this code, provided that any such 
alternative has been approved. An alternative material or 
method of construction shall be approved where the code offi- 
cial finds that the proposed design is satisfactory and complies 
with the intent of the provisions of this code, and that the mate- 
rial, method or work offered is, for the purpose intended, at 
least the equivalent of that prescribed in this code in quality, 
strength, effectiveness, fire resistance, durability and safety. 

WS3 Meqaiired testimgo Whenever there is insufficient evi- 
dence of compliance with the provisions of this code, or evi- 
dence that a material or metiiod does not conform to the 
requirements of this code, or in order to substantiate claims for 
altemate materials or methods, the code official shall have the 
authority to require tests as evidence of compliance to be made 
at no expense to the jurisdiction. 

10So3ol Test metlhodSo Test methods shall be as specified in 
this code or by other recognized test standards. In the ab- 
sence of recognized and accepted test methods, the code of- 
ficial shall approve the testing procedures. 

lfll5o3.2 Testmg agemcyo All tests shall be performed by an 
approved agency. 

105.3o3 Test reporiis. Reports of tests shall be retained by 
the code official for the period required for retention of pub- 
lic records. 



dgm. The design, documen- 
tation, inspection, testing and approval of an alternative engi- 
neered design plumbing system shall comply with Sections 
105.4.1 through 105.4.6. 

105.4J Deslgra criteraa. An alternative engineered design 
shall conform to the intent of the provisions of this code and 
shall provide an equivalent level of quality, strength, effec- 
tiveness, fire resistance, durability and safety. Material, 
equipment or components shall be designed and installed in 
accordance with the manufacturer's installation 
instructions. 

105.4.2 Siabmlttaill. The registered design professional shall 
indicate on the permit application that the plumbing system 
is an alternative engineered design. The permit and perma- 
nent permit records shall indicate that an alternative engi- 
neered design was part of the approved installation. 

105.4.3 Tedmical daUa. The registered design professional 
shall submit sufficient technical data to substantiate the pro- 
posed alternative engineered design and to prove that the 
performance meets the intent of this code. 

105.4.4 C®nstrM£ltflon drocomeiats. The registered design 
professional shall submit to the code official two complete 
sets of signed and sealed construction documents for the al- 
ternative e ngineered design. The construction documents 
shall include floor plans and a riser diagram of the work. 
Where appropriate, the construction documents shall indi- 
cate the direction of flow, all pipe sizes, grade of horizontal 
piping, loading, and location of fixtures and appliances. 

l®5o4.S DesEgn approvafl. Where the code official deter- 
mines that the alternative engineered design conforms to the 



intent of this code, the plumbing system shall be approved. 
If the alternative e ngineered design is not approved, the 
code official shall notify the registered design professional 
in writing, stating the reasons thereof. 

1(05,4,6 Imspecitioini amd testmg. The alternative engineered 
design shall be tested and inspected in accordance with the 
requirements of Sections 107 and 312. 



reiinse. Materials, equipment 
and devices shall not be reused unless such elements have been 
reconditioned, tested, placed in good and proper working con- 
dition and approved. 



PEEMWB 

Any owner, authorized agent or con- 
tractor who desires to construct, enlarge, alter, repair, move, 
demolish or change the occupancy of a building or structure, or 
to erect, install, enlarge, alter, repair, remove, convert or re- 
place any plumbing system, the installation of which is regu- 
lated by this code, or to cause any such work to be done, shall 
first make application to the code official and obtain the re- 
quired permit for the work. 

1®6.2 Exempt work. The following work shall be exempt 
from the requirement for a permit: 

1 .The stopping of leaks in drains, water, soil, waste or 
vent p ipe p rovided, however, that if any c oncealed 
trap, drainpipe, water, soil, waste or vent pipe becomes 
defective and it becomes necessary to remove and re- 
place the same with new material, such work shall be 
considered as new work and a permit shall be obtained 
and inspection made as provided in this code. 

2. The clearing of stoppages or the repairing of leaks in 
pipes, valves or fixtures, and the removal and reinstal- 
lation of water closets, provided such repairs do not in- 
volve or require the replacement or rearrangement of 
valves, pipes or fixtures. 

Exemption from the permit requirements of this code shall 
not be deemed to grant authorization for any work to be done in 
violation of the provisions of this code or any other laws or or- 
dinances of this jurisdiction. 



t. Each application for a permit, 
with the required fee, shall be filed with the code official on a 
form furnished for that purpose and shall contain a general de- 
scription of the proposed work and its location. The appUcation 
shall be signed by the owner or an authorized agent. The permit 
application shall indicate the proposed occupancy of all parts of 
the building and of that portion of the site or lot, if any, not cov- 
ered by the building or structure and shall contain such other in- 
formation required by the code official. 

106.3,1 CoMstriiictlom dociuimeimts. Construction docu- 
ments, engineering calculations, diagrams and other such 
data shall be submitted in two or more sets with each appli- 
cation for a permit. The code official shall require construc- 
tion documents, computations and specifications to be 
prepared and designed by a registered design piofessional 
when required by state law. Construction documents shall 
be drawn to scale and shall be of sufficient clarity to indicate 



ADMSWISTRATIOM 



the location, nature and extent of the work proposed and 
show in detail that the work conforms to the provisions of 
this code. Construction documents for buildings more than 
two stories in height shall indicate where penetrations will 
be made for pipe, fittings and components and shall indicate 
the materials and methods for maintaining required struc- 
tural safety, fire-resistance rating and fireblocking. 

Esceptsomi The code official shall have the authority to 
waive the submission of construction documents, calcula- 
tions or other data if the nature of the work applied for is 
such that reviewing of construction documents is not nec- 
essary to determine compliance with this code. 

106.4 By whom applicatioi Is made,, Application for a permit 
shall be made by the person or agent to install all or part of any 
plumbing system. The applicant shall meet all qualifications 
established by statute, or by mles promulgated by this code, or 
by ordinance or by resolution. The full name and address of the 
applicant shall be stated in the application. 

106o5 Permit issuance., The apphcation, construction docu- 
ments and other data filed by an applicant for permit shall be re- 
viewed by the code official. If the code official finds that the 
proposed work conforms to the requirements of this code and 
all laws and ordinances applicable thereto, and that the fees 
specified in Section 106.6 have been paid, a permit shall be is- 
sued to the applicant. 

106.5.1 Approved constructioe dociameHts. When the 
code official issues the permit where construction docu- 
ments are required, the construction documents shall be en- 
dorsed in writing and stamped "APPROVED." Such 
approved construction documents shall not be changed, 
modified or altered without authorization from the code of- 
ficial. All work shall be done in accordance with the ap- 
proved construction documents. 

The code official shall have the authority to issue a per- 
mit for the construction of a part of a plumbing system be- 
fore the entire construction documents for the whole system 
have been submitted or approved, provided adequate infor- 
mation and detailed statements have been filed complying 
with all pertinent requirements of this code. The holders of 
such permit shall proceed at their own risk without assur- 
ance that the permit for the entire plumbing system will be 
granted. 



f. The issuance of a permit or approval of 
construction documents shall not be constmed to be a per- 
mit for, or an approval of, any violation of any of the provi- 
sions of this code or any other ordinance of the jurisdiction. 
No permit presuming to give authority to violate or cancel 
the provisions of this code shall be valid. 

The issuance of a permit based upon construction docu- 
ments and other data shall not prevent the code official from 
thereafter requiring the correction of errors in said construc- 
tion documents and other data or from preventing building 
operations being carried on thereunder when in violation of 
this code or of other ordinances of this jurisdiction. 

106.S.3 Expiration. Every permit issued by the code offi- 
cial under the provisions of this code shall expire by limita- 
tion and become null and void if the work authorized by 



such permit is not commenced within 180 days from the 
date of such permit, or if the work authorized by such permit 
is suspended or abandoned at any time after the work is 
commenced for a period of 1 80 days. Before such work can 
be recommenced, a new permit shall be first obtained and 
the fee therefor shall be one-half the amount required for a 
new permit for such work, provided no changes have been 
made or will be made in the original construction documents 
for such work, and provided further that such suspension or 
abandonment has not exceeded 1 year. 

1®6.S,4 Exterasions. Any permittee holding an unexpired 
permit shall have the right to apply for an extension of the 
time within which the permittee will commence work under 
that permit when work is unable to be commenced within 
the time required by this section for good and satisfactory 
reasons. The code official shall extend the time for action by 
the permittee for a period not exceeding 180 days if there is 
reasonable cause. No permit shall be extended more than 
once. The fee for an extension shall be one-half the amount 
required for a new permit for such work. 

106.5.5 Sasspeiiisioii or revocation of permit. The code of- 
ficial shall revoke a permit or approval issued imder the pro- 
visions of this code in case of any false statement or 
misrepresentation of fact in the application or on the con- 
struction documents upon which the permit or approval was 
based. 

106.5.6 Retemtlon of construction documents. One set of 
construction documents shall be retained by the code offi- 
cial until fmal approval of the work covered therein. One set 
of approved construction documents shall be returned to the 
applicant, and said set shall be kept on the site of the build- 
ing or work at all times during which the work authorized 
thereby is in progress. 



5,6 Fees. A permit shall not be issued until the fees pre- 
scribed in Section 106.6.2 have been paid, and an amendment 
to a permit shall not be released until the additional fee, if any, 
due to an increase of the plumbing systems, has been paid. 



commencing before permit issuance. Any 
person who commences any work on a plumbing system be- 
fore obtaining the necessary permits shall be subject to 100 
percent of the usual permit fee in addition to the required 
permit fees. 

1§6.6.2 Fee schedule. The fees for all plumbing work shall 
be as indicated in the following schedule: 

[JURISDICTION TO INSERT APPROPRIATE SCHEDULE] 

1§6.6.3 Fee refunds. The code official shall authorize the 
refunding of fees as follows: 

1 . The full amount of any fee paid hereunder that was er- 
roneously paid or collected. 

2. Not more than [SPECIFY PERCENTAGE] percent of the 
permit fee paid when no work has been done under a 
permit issued in accordance with this code. 

3. Not more than [SPECIFY PERCENTAGE] percent of the 
plan review fee paid when an application for a permit 
for which a plan review fee has been paid is withdrawn 



2003 iNTERMATIONAL PLUMBING CODE® 



or canceled before any plan review effort has been 
e> 



The code official shall not authorize the refunding of any 
fee paid except upon written application filed by the original 
permittee not later than 180 days after the date of fee 
payment. 



icimM no? 



TESTD 



1®7.1 Meciiianredl Dinis]pesM®im§ amd itesttnmgo The code official, 
upon notification from the permit holder or the permit holder's 
agent, shall make the following inspections and such other in- 
spections as necessary, and shall either release that portion of 
the construction or shall notify the permit holder or an agent of 
any violations that must be corrected. The holder of the permit 
shall be responsible for the scheduling of such inspections. 

1. Underground inspection shall be made after trenches 
or ditches are excavated and bedded, piping installed, 
and before any backfill is put in place. 

2. Rough-in inspection shall be made after the roof, fram- 
ing, fireblocking, firestopping, draftstopping and 
bracing is in place and all sanitary, storm and water 
distribution piping is roughed-in, and prior to the in- 
stallation of wall or ceiling membranes. 

3. Final inspection shall be made after the building is 
complete, all plumbing fixtures are in place and prop- 
erly connected, and the structure is ready for occuancy. 

1©7.L]1 Approved! ageraKckSo Test reports submitted to the 
code official for consideration shall be developed by ap- 
proved agencies that have satisfied the requirements as to 
qualifications and reliability. 

11®7,L2 EvataaHnom amdl foiow-mp nuaspecMoim serviceSo 
Prior to the approval of a closed, prefabricated plumbing sys- 
tem and the issuance of a plumbing permit, the code official 
shall require the submittal of an evaluation report on each pre- 
fabricated plumbing system indicating the complete details 
of the plumbing system, including a description of the system 
and its components, the basis upon which the plumbing sys- 
tem is being evaluated, test results and similar information, 
and other data as necessary for the code official to determine 
conformance to this code. 

l®7.1.2o11 EvataaMom service- The code official shall des- 
ignate the evaluation service of an approved agency as the 
evaluation agency, and review such agency's evaluation 
report for adequacy and conformance to this code. 

l®7oL2.2 FoSlow-Mp nmspecttnom. Except where ready ac- 
cess is provided to all plumbing systems, service equip- 
ment and accessories for complete inspection at the site 
without disassembly or dismantling, the code official shall 
conduct the frequency of in-plant inspections necessary to 
ensure conformance to the approved evaluation report or 
shall designate an independent, approved inspection 
agency to conduct such inspections. The inspection 
agency shall furnish the code official with the follow-up 
inspection manual and a report of inspections upon re- 
quest, and the plumbing system shall have an identifying 



label permanently affixed to the system indicating that 
factory inspections have been performed. 

l©7ol.2.3 Test amdl taspecttBom recordSo All required test 
and inspection records shall be available to the code offi- 
cial at all times during the fabrication of the plumbing sys- 
tem and the erection of the building, or such records as the 
code official designates shall be filed. 

l®7o2 Special Hinispecilnoms. Special inspections of alternative 
engineered design plumbing systems shall be conducted in ac- 
cordance with Sections 107.2.1 and 107.2.2. 

]l®7o2J Periodic imspecdioini. The registered design profes- 
sional or designated inspector shall periodically inspect and 
observe the alternative engineered design to determine that 
the installation is in accordance with the approved construc- 
tion documents. All discrepancies shall be brought to the 
immediate attention of the plumbing contractor for correc- 
tion. Records shall be kept of all inspections. 

W7.2.2 WriMenn report The registered design professional 
shall submit a final report in writing to the code official 
upon completion of the installation, certifying that the alter- 
native e ngineered design conforms to the approved con- 
struction documents. A notice of approval for the plumbing 
system shall not be issued until a Avritten certification has 
been submitted. 

107.3 Tesltimg. Plumbing work and systems shall be tested as 
required in Section 312 and in accordance with Sections 
107.3.1 through 107.3.3. Tests shall be made by the permit 
holder and observed by the code official. 



l®7o3.1 New, altered, extemded or repaired systems. New 
plumbing systems and parts of existing systems that have 
been altered, extended or repaired shall be tested as pre- 
scribed herein to disclose leaks and defects, except that test- 
ing is not required in the following cases: 

1. In any case that does not include addition to, replace- 
ment, alteration or relocation of any water supply, 
drainage or vent piping. 

2. In any case where plumbing equipment is set up tem- 
porarily for exhibition purposes. 

1®7.3.2 EqaaipmemU, material aed lalbor for tests. All 
equipment, material and labor required for testing a plumb- 
ing system or part thereof shall be furnished by the permit 
holder. 

l®7o33 Meiimspecttioim amd tesltiinig. Where any work or in- 
stallation does not pass any initial test or inspection, the nec- 
essary corrections shall be made to comply with this code. 
The work or installation shall then be resubmitted to the 
code official for inspection and testing. 

l®7o4 Approval- After the prescribed tests and inspections in- 
dicate that the work complies in all respects with this code, a 
notice of approval shall be issued by the code official. 



, The code official shall have the 
authority to authorize the temporary connection of the building 
or system to the utility source for the purpose of testing plumb- 
ing systems or for use under a temporary certificate of 
occupancy. 



<^ 



lOm SOTEeMATDOWAL PLUR/aBBWG CODE® 



ADMINiSTRATiON 



VIOLATIONS 

1§8.1 Unlawful acts. It shall be unlawful for any person, firm 
or corporation to erect, construct, alter, repair, remove, demol- 
ish or utilize any plumbing system, or cause same to be done, in 
conflict with or in violation of any of the provisions of this 
code. 

1 08.2 Notice off violation. The code official shall serve a notice 
of violation or order to the person responsible for the erection, 
installation, alteration, extension, repair, removal or demoli- 
tion of plumbing work in violation of the provisions of this 
code, or in violation of a detail statement or the approved con- 
struction documents thereunder, or in violation of a permit or 
certificate issued under the provisions of this code. Such order 
shall direct the discontinuance of the illegal action or condition 
and the abatement of the violation. 

108.3 Prosecution of violation. If the notice of violation is not 
complied with promptly, the code official shall request the le- 
gal counsel of the jurisdiction to institute the appropriate pro- 
ceeding at law or in equity to restrain, correct or abate such 
violation, or to require the removal or termination of the unlaw- 
ful occupancy of the structure in violation of the provisions of 
this code or of the order or direction made pursuant thereto. 

108.4 Violation penalties. Any person who shall violate a pro- 
vision of this code or shall fail to comply with any of the re- 
quirements thereof or who shall erect, install, alter or repair 
plumbing work in violation of the approved construction docu- 
ments or directive of the code official, or of a permit or certifi- 
cate issued under the provisions of this code, shall be guilty of a 
[SPECIFY OFFENSE], punishable by a fine of not more than 
[AMOUNT] dollars or by imprisormient not exceeding [NUMBER 
OF DAYS], or both such fine and imprisonment. Each day that a 
violation continues after due notice has been served shall be 
deemed a separate offense. 

108.5 Stop work orders. Upon notice from the code official, 
work on any plumbing system that is being done contrary to the 
provisions of this code or in a dangerous or unsafe manner shall 
immediately cease. Such notice shall be in writing and shall be 
given to the ovmer of the property, or to the owner's agent, or to 
the person doing the work. The notice shall state the conditions 
under which work is authorized to resume. Where an emer- 
gency exists, the code official shall not be required to give a 
written notice prior to stopping the work. Any person who shall 
continue any work in or about the structure after having been 
served with a stop work order, except such work as that person 
is directed to perform to remove a violation or unsafe condi- 
tion,shall be liable to a fine of not less than [AMOUNT] dollars or 
more than [AMOUNT] dollars. 

108.6 Abatement of violation. The imposition of the penalties 
herein prescribed shall not preclude the legal officer of the ju- 
risdiction from instituting appropriate action to prevent unlaw- 
ful construction or to restrain, correct or abate a violation, or to 
prevent illegal occupancy of a building, structure or premises, 
or to stop an illegal act, conduct, business or utilization of the 
plumbing on or about any premises. 

108.7 Unsafe plumbing. Any plumbing regulated by this code 
that is unsafe or that constitutes a fire or health hazard, insani- 
tary condition, or is otherwise dangerous to human life is 



hereby declared unsafe. Any use of plumbing regulated by this 
code constituting a hazard to safety, health or public welfare by 
reason of inadequate maintenance, dilapidation, obsolescence, 
fire hazard, disaster, damage or abandonment is hereby de- 
clared an unsafe use. Any such unsafe equipment is hereby de- 
clared to be a public nuisance and shall be abated by repair, 
rehabilitation, demolition or removal. 

108.7.1 Authority to condemn equipment. ^AHienever the 
code official determines that any plumbing, or portion 
thereof, regulated by this code has become hazardous to life, 
health or property or has become insanitary, the code official 
shall order in writing that such plumbing either be removed 
or restored to a safe or sanitary condition. A time limit for 
compliance with such order shall be specified in the written 
notice. No person shall use or maintain defective plumbing 
after receiving such notice. 

When such plumbing is to be disconnected, written no- 
tice as prescribed in Section 108.2 shall be given. In cases of 
immediate danger to hfe or property, such disconnection 
shall be made immediately without such notice. 

108.7.2 Authority to disconnect service utilities. The code 
official shall have the authority to authorize disconnection 
of utility service to the building, structure or system regu- 
lated by the technical codes in case of an emergency, where 
necessary, to eliminate an immediate danger to hfe or prop- 
erty. Where possible, the owner and occupant of the build- 
ing, structure or service system shall be notified of the 
decision to disconnect utility service prior to taking such ac- 
tion. If not notified prior to disconnecting, the owner or oc- 
cupant of the building, structure or service systems shall be 
notified in writing, as soon as practical thereafter. 

108.7.3 Connection after order to disconnect. No person 
shall make connections from any energy, fuel, power supply 
or water distribution system or supply energy, fuel or water 
to any equipment regulated by this code that has been dis- 
connected or ordered to be disconnected by the code official 
or the use of which has been ordered to be discontinued by 
the code official until the code official authorizes the 
reconnection and use of such equipment. 

When any plumbing is maintained in violation of this 
code, and in violation of any notice issued pursuant to the 
provisions of this section, the code official shall institute any 
appropriate action to prevent, restrain, correct or abate the 
violation. 

SECTION 109 
MEANS OF APPEAL 

109.1 Application for appeal. Any person shall have the right 
to appeal a decision of the code official to the board of appeals. 
An application for appeal shall be based on a claim that ttie tme 
intent of this code or the rules legally adopted thereunder have 
been incorrectly interpreted, the provisions of this code do not 
fully apply, or an equally good or better form of construction is 
proposed. The application shall be filed on a form obtained 
from the code official within 20 days after the notice was 
served. 

109.2 Membership of board. The board of appeals shall con- 
sist of five members appointed by the chief appointing 



2003 INTERNATIONAL PLUMBING CODE® 



ISTRATIOW 



authority as follows: one for 5 years, one for 4 years, one for 3 
years, one for 2 years and one for 1 year. Thereafter, each new 
member shall serve for 5 years or until a successor has been 
appointed. 

109.2 J QimsiMfflcaitMmSo The board of appeals shall consist 
of five individuals, one from each of the following profes- 
sions or disciplines: 

1 . Registered design professional who is a registered ar- 
chitect; or a builder or superintendent of building con- 
struction with at least 10 years' experience, 5 years of 
which shall have been in responsible charge of work. 

2. Registered design professional with structural engi- 
neering or architectural experience. 

3. Registered design professional with mechanical and 
plumbing engineering experience; or a mechanical 
and plumbing contractor with at least 10 years' experi- 
ence, 5 years of which shall have been in responsible 
charge of work. 

4. Registered design professional with electrical engi- 
neering experience; or an electrical contractor with at 
least 10 years' experience, 5 years of which shall have 
been in responsible charge of work. 

5. Registered design professional with fire protection en- 
gineering experience; or a fire protection contractor 
with at least 10 years' experience, 5 years of which 
shall have been in responsible charge of work. 

l®9o2.2 AStermaite memberso The chief appointing author- 
ity shall appoint two alternate members who shall be called 
by the board chairman to hear appeals during the absence or 
disqualification of a member. Alternate members shall pos- 
sess the qualifications required for board membership, and 
shall be appointed for 5 years or until a successor has been 
appointed. 

109.2.3 Clsanrmanii. The board shall annually select one of 
its members to serve as chairman. 



A member shall not 
hear an appeal in which that member has any personal, pro- 
fessional or financial interest. 



,5 Secretary. The chief administrative officer shall 
designate a qualified clerk to serve as secretary to the board. 
The secretary shall file a detailed record of all proceedings 
in the office of the chief administrative officer. 

109.2.6 CompeMsaiBOii ®f members. Compensation of 
members shall be determined by law. 



ig. The board shall meet upon notice 
from the chairman, within 10 days of the filing of an appeal or 
at stated periodic meetings. 

109.4 Opem Iseariing. All hearings before the board shall be 
open to the public. The appellant, the appellant's representa- 
tive, the code official and any person whose interests are af- 
fected shall be given an opportunity to be heard. 

109.4.1 Procedisre. The board shall adopt and make avail- 
able to the public through the secretary procedures under 
which a hearing will be conducted. The procedures shall not 



require compliance with strict rules of evidence, but shall 
mandate that only relevant information be received. 

IPosttpoimedl Ihiearniing. When five members are not present 
to hear an appeal, either the appellant or the appellant's repre- 
sentative shall have the right to request a postponement of the 
hearing. 

109.6 B®ard decnsnemio The board shall modify or reverse the 
decision of the code official by a concurring vote of three 
members. 

109.6.1 EesoSmiiiBOiii. The decision of the board shall be by 
resolution. Certified copies shall be furnished to the appel- 
lant and to the code official. 



, The code official shall take imme- 
diate action in accordance with the decision of the board. 



109.7 Coaart review. Any person, whether or not a previous 
party of the appeal, shall have the right to apply to the appropri- 
ate court for a writ of certiorari to correct errors of law. Appli- 
cation for review shall be made in the manner and time required 
by law following the filing of the decision in the office of the 
chief administrative officer. 



2003 INTERNATIONAL PLUMBING CODE® 



CHAPTEIR 2 



f 



QEMERAL 

2®L1 Sc©pe. Unless otherwise expressly stated, the following 
words and terms shall, for the purposes of this code, have the 
meanings shown in this chapter. 



Words stated in the present tense in- 
clude the future; words stated in the masculine gender include 
the feminine and neuter; the singular number includes the plu- 
ral and the plural the singular. 

201 3 Terms defflnedl nm other codes. Where terms are not de- 
fmed in this code and are defined in the International Building 
Code, International Fire Code, ICC Electrical Code, Interna- 
tional Fuel Gas Code or the International Mechanical Code, 
such terms shall have the meanings ascribed to them as in those 
codes. 



. Where terms are not defined through 
the methods authorized by this section, such terms shall have 
ordinarily accepted meanings such as the context implies. 



That which 

conforms to accepted principles, tests or standards of nation- 
ally recognized technical or scientific authorities. 

ACCESS (TO). That which enables a fixture, appliance or 
equipment to be reached by ready access or by a means that first 
requires the removal or movement of a panel, door or similar 
obstruction (see "Ready access")- 



£R. A removable plate, usually secured by bolts 
or screws, to permit access to a pipe or pipe fitting for the pur- 
poses of inspection, repair or cleaning. 

AB AFTER FITTING. An approved connecting device that 
suitably and properly joins or adjusts pipes and fittings which 
do not otherwise fit together. 

AIR ADMITTANCE VALVE. One-way valve designed to al- 
low air to enter the plumbing drainage system when negative 
pressures develop in the piping system. The device shall close 
by gravity and seal the vent terminal at zero differential pres- 
sure (no flow conditions) and under positive intemal pressures. 
The purpose of an air admittance valve is to provide a method 
of allowing air to enter the plumbing drainage system without 
the use of a vent extended to open air and to prevent sewer gases 
from escaping into a building. 

AIM BREAK p>ralmage System). A piping arrangement in 
which a drain from a fixture, appliance or device discharges in- 
directly into another fixture, receptacle or interceptor at a point 
below the flood level rim and above the trap seal. 



waste pipe and the flood level rim of the receptacle into which 
the waste pipe is discharging. 

AIR GAP (Water DnstolbMitnoini System). The unobstructed 
vertical distance through the free atmosphere between the low- 
est opening from any pipe or faucet supplying water to a tank, 
plumbing fixture or other device and the flood level rim of the 
receptacle. 

ALTERNATIVE ENGINEERE© BESIGN. A plumbing 
system that performs in accordance with the intent of Chapters 
3 through 12 and provides an equivalent level of performance 
for the protection of public health, safety and welfare. The sys- 
tem design is not specifically regulated by Chapters 3 through 
12. 

ANCHORS. See "Supports." 

ANTISIPHON, A term apphed to valves or mechanical de- 
vices that eliminate siphonage. 



. Approved by the code official or other authority 
having jurisdiction. 



&VED AGENCY. An established and recognized 
agency approved by the code official and that is regularly en- 
gaged in conducting tests or furnishing inspection services. 

AREA BRAIN. A receptacle designed to collect surface or 
storm water from an open area. 

ASPIRATOR. A fitting or device supplied with water or other 
fluid under positive pressure that passes through an integral or- 
ifice or constriction, causing a vacuum. Aspirators are also re- 
ferred to as suction apparatus, and are similar in operation to an 
ejector. 



/. Pressure created by any means in the water dis- 
tribution system, which by being in excess of the pressure in the 
water supply mains causes a potential backflow condition. 

Backpressure, low head. A pressure less than or equal to 
4.33 psi (29.88 kPa) or the pressure exerted by a 10-foot 
(3048 mm) column of water. 



jtnoeage. The backflow of potentially contaminated 
water into the potable water system as a result of the pres- 
sure in the potable water system falling below atmospheric 
pressure of the plumbing fixtures, pools, tanks or vats con- 
nected to the potable water distribution piping. 



A device or valve installed in the build- 
ing drain or sewer pipe where a sewer is subject to backflow, 
and which prevents drainage or waste from backing up into 
a low level or fixtures and causing a flooding condition. 



)raseage System). The unobstructed vertical dis- 
tance through the free atmosphere between the outlet of the 



age. A reversal of flow in the drainage system. 

pply system. The flow of water or other liquids, 
mixtures or substances into the distribution pipes of a pota- 
ble water supply from any source except the intended 
source. 



2003 JMTEeSMATBOWAL PLUMBJMG CODE® 



9 



OEFIMmONS 



BACKFLOW CONNECTION, Any arrangement whereby 
backflow is possible. 

BACKFLOW PREVENTER. A device or means to prevent 
backflow. 

BALL COCK. See "Fill Valve." 

BASE FLOOD ELEVATION, A reference point, determined 
in accordance with the building code, based on the depth or 
peak elevation of flooding, including wave height, which has a 
1 percent (100-year flood) or greater chance of occurring in any 
given year. 

BATHROOM GROUF. A group of fixtures consisting of a 
water closet, lavatory, bathtub or shower, including or exclud- 
ing a bidet, an emergency floor drain or both. Such fixtures are 
located together on the same floor level. 

BEDPAN STEAMER OR BOILER. A fixture utilized for 
scalding bedpans or urinals by direct application of steam or 
boiling water. 

BEDPAN WASHER AND STERILIZER. A fixture de- 
signed to wash bedpans and to flush the contents into the sani- 
tary drainage system. Included are fixtures of this type that 
provide for disinfecting utensils by scalding with steam or hot 
water. 

BEDPAN WASHER HOSE. A device supplied with hot and 
cold water and located adjacent to a water closet or clinical sink 
to be utilized for cleansing bedpans. 

BRANCH. Any part of the piping system except a riser, main 
or stack. 

BRANCH INTERVAL, A distance along a soil or waste stack 
corresponding in general to a story height, but not less than 8 
feet (2438 mm), within which the horizontal branches from one 
floor or story of a structure are connected to the stack. 

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

BUILDING. Any structuie occupied or intended for support- 
ing or sheltering any occupancy. 

BUILDING DRAIN. That part of the lowest piping of a drain- 
age system that receives the discharge from soil, waste and 
other drainage pipes inside and that extends 30 inches (762 
mm) in developed length of pipe beyond the exterior walls of 
the building and conveys the drainage to the building sewer. 

Combined. A building drain that conveys both sewage and 
storm water or other drainage. 

Sanitary. A building drain that conveys sewage only. 

Storm. A building drain that conveys storm water or other 
drainage, but not sewage. 

BUILDING SEWER. That part of the drainage system that 
extends from the end of the building drain and conveys the dis- 
charge to a public sewer, private sewer, individual sewage dis- 
posal system or other point of disposal. 

Combined. A building sewer that conveys both sewage and 
storm water or other drainage. 

Sanitary. A building sewer that conveys sewage only. 



Stormi. A building sewer that conveys storm water or other 
drainage, but not sewage. 

BUILDING SUBDRAIN. That portion of a drainage system 
that does not drain by gravity into the building sewer. 

BUILDING TRAP. A device, fitting or assembly of fittings in- 
stalled in the building drain to prevent circulation of air be- 
tween the drainage system of the building and the building 
sewer. 

CIRCUIT VENT, A vent that connects to a hoiizontal drain- 
age branch and vents two traps to a maximum of eight traps or 
trapped fixtures connected into a battery. 



. A small covered tank for storing water for a home 
or farm. Generally, this tank stores rainwater to be utilized for 
purposes other than in the potable water supply, and such tank 
is placed underground in most cases. 

CLEANOUT. An access opening in the drainage system uti- 
lized for the removal of obstructions. Types of cleanouts in- 
clude a removable plug or cap, and a removable fixture or fix- 
ture trap. 

CODE. These regulations, subsequent amendments thereto, or 
any emergency rule or regulation that the administrative au- 
thority having jurisdiction has lawfiilly adopted. 



)FFICIAL, The officer or other designated authority 
charged with the administration and enforcement of this code, 
or a duly authorized representative. 

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

COMBINATION WASTE AND VENT SYSTEM, A spe- 
cially designed system of waste piping embodying the horizon- 
tal 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. 

COMBINED BUILDING DRAIN, See "Building drain, 
combined." 

COMBINED BUILDING SEWER. See "Building sewer, 
combined." 



ENT, A vent connecting at the junction of two 
fixture drains or to a fixture branch and serving as a vent for 
both fixtures. 



M.ED FOULING SURFACE. Any surface of a 
plumbing fixture which is not readily visible and is not scoured 
or cleansed with each fixture operation. 

CONDUCTOR, Apipe inside the building that conveys storm 
water from the roof to a storm or combined building drain. 

CONSTRUCTION DOCUMENTS. All of the written, 
graphic and pictorial documents prepared or assembled for de- 
scribing the design, location and physical characteristics of the 
elements of the project necessary for obtaining a building per- 
mit. The construction drawings shall be drawn to an appropri- 
ate scale. 

CONTAMINATION. An impairment of the quality of the po- 
table water that creates an actual hazard to the public health 



2003 tWTERfSIATIONAL PLUMBING CODE® 



DEFINITIONS 



« 



through poisoning or through the spread of disease by sewage, 
industrial fluids or waste. 

CMTICAL LEVEL (C-L)« An elevation (height) reference 
point that determines the minimum height at which a backflow 
preventer or vacuum breaker is installed above the flood level 
rim of the fixture or receptor served by the device. The critical 
level is the elevation level below which there is a potential for 
backflow to occur. If the critical level marking is not indicated 
on the device, the bottom of the device shall constitute the criti- 
cal level. 

CROSS CONNECTION. Any physical connection or arrange- 
ment between two otherwise separate piping systems, one of 
which contains potable water and the other either water of un- 
knovra or questionable safety or steam, gas or chemical, 
whereby there exists the possibility for flow from one system to 
the other, with the direction of flow depending on the pressure 
differential between the two systems (see "Backflow"). 



' END. A branch leading from a soil, waste or vent pipe; 
a building drain; or a building sewer, and terminating at a de- 
veloped length of 2 feet (610 mm) or more by means of a plug, 
cap or other closed fitting. 

DEPTH OF WATER SEAL. The depth of water that would 
have to be removed from a full trap before air could pass 
through the frap. 

DESIGN FLOOD ELEVATION, The elevation of the "de- 
sign flood," including wave height, relative to the datum speci- 
fied on the community's legally designated flood hazard map. 

DEVELOPED LENGTH. The length of a pipeline measured 
along the centerline of the pipe and fittings. 



1. A pipe that conveys the discharges from 
plumbing fixtures or appliances. 



Any pipe that carries wastewater or water-borne 
wastes in a building drainage system. 

DRAINAGE FITTINGS. Type of fitting or fittings utilized in 
the drainage system. Drainage fittings are similar to cast-iron 
fittings, except that instead of having a bell and spigot, drainage 
fittings are recessed and tapped to eliminate ridges on the inside 
of the installed pipe. 

DRAINAGE FIXTURE UNIT 



I (dffiia), A measure of the probable discharge into 
the drainage system by various types of plumbing fixtures. 
The drainage fixture-unit value for a particular fixture de- 
pends on its volume rate of drainage discharge, on the time 
duration of a single drainage operation and on the average 
time between successive operations. 

DRAINAGE SYSTEM. Piping within a public or private 
premise that conveys sewage, rainwater or other liquid wastes 
to a point of disposal. A drainage system does not include the 
mains of a public sewer system or a private or public sewage 
treatment or disposal plant. 



sg grsviiy. A drainage system that drains by gravity 
into the building sewer. 

Saoitary. A drainage system that carries sewage and ex- 
cludes storm, surface and ground water. 



Storm. A drainage system that carries rainwater, surface 
water, subsurface water and similar liquid wastes. 

EFFECTIVE OPENING The minimum cross-sectional area 
at the point of water supply discharge, measured or expressed 
in terms of the diameter of a circle or, if the opening is not circu- 
lar, the diameter of a circle of equivalent cross -sectional area. 
For faucets and similar fittings, the effective opening shall be 
measured at the smallest orifice in the fitting body or in the sup- 
ply piping to the fitting. 

EMERGENCY FLOOR BRAIN. A floor drain that does not 
receive the discharge of any drain or indirect waste pipe, and 
that protects against damage from accidental spills, fixture 
overflows and leakage. 

ESSENTIALLY NONTOXIC TRANSFER FLUIDS. 
Fluids having a Gosselin rating of 1, including propylene 
glycol; mineral oil; polydimethylsiloxane; hydrochlorofluoro- 
carbon, chlorofluorocarbon and carbon refrigerants; and 
FDA-approved boiler water additives for steam boilers. 

ESSENTIALLY TOXIC TRANSFER FLUIDS. Soil, waste 
or gray water and fluids having a Gosselin rating of 2 or more 
including ethylene glycol, hydrocarbon oils, ammonia refrig- 
erants and hydrazine. 

EXISTING INSTALLATIONS. Any plumbing system regu- 
lated by this code that was legally installed prior to the effective 
date of this code, or for which a permit to install has been is- 
sued. 

FAUCET. A valve end of a water pipe through which water is 
drawn from or held within the pipe. 

FILL VALVE. A water supply valve, opened or closed by me- 
ans of a float or similar device, utilized to supply water to a 
tank. An antisiphon fill valve contains an antisiphon device in 
the form of an approved air gap or vacuum breaker that is an in- 
tegral part of the fill valve unit and that is positioned on the dis- 
charge side of the water supply control valve. 

FIXTURE. See "Plumbing fixture." 

FIXTURE BRANCH. A drain serving two or more fixtures 
that discharges to another drain or to a stack. 

FIXTURE DRAIN, The drain from the trap of a fixUire to a 
junction with any other drain pipe. 

FIXTURE FITTING 



Bg. A fitting that controls the volume and/or di- 
rectional flow of water and is either attached to or accessible 
from a fixture, or is used with an open or atmospheric dis- 
charge. 



I. A combination of components that conveys 
the sanitary waste from the outlet of a fixture to the connec- 
tion to the sanitary drainage system. 

FIXTURE SUPPLY, The water supply pipe connecting a fix- 
ture to a branch water supply pipe or directly to a main water 
supply pipe. 

FLOOD LEVEL RIM, The edge of the receptacle from which 
water overflows. 



§003 8WTERWATI10NAL PLUMBDMG CODE® 



11 



DEFINITIOMS 



FLOOD HAZARD AREA. The greater of the following two 
areas: 

1 . The area within a flood plain subject to a 1 -percent or 
greater chance of flooding in any given year, 

2.The area designated as a flood hazard area on a commu- 
nity's flood hazard map or as otherwise legally desig- 
nated. 

FLOW PRESSURE. The pressure in the water supply pipe 
near the faucet or water outlet while the faucet or water outlet is 
wide open and flowing. 

FLUSH TANK. A tank designed with a fill valve and flush 
valve to flush the contents of the bowl or usable portion of the 
fixture. 

FLUSeOMETER TANK. A device integrated within an air 
accumulator vessel that is designed to discharge a predeter- 
mined quantity of water to fixtures for flushing purposes. 

FLUSHOMETER VALVE. A valve attached to a pressurized 
water supply pipe and so designed that when activated it opens 
the line for direct flow into the fixture at a rate and quantity to 
operate the fixture properly, and then gradually closes to reseal 
fixture traps and avoid water hammer. 

GREASE INTERCEPTOR, A passive interceptor whose 
rated flow exceeds 50 gpm (189 L/m). 

GREASE-LADEN WASTE. Effluent discharge that is pro- 
duced from food processing, food preparation or other sources 
where grease, fats and oils enter automatic dishwater prerinse 
stations, sinks or other appurtenances. 

GREASE TRAP. A passive interceptor whose rated flow is 50 
gpm (189 L/m) or less. 

HANGERS. See "Supports." 

HORIZONTAL BRANCH DRAIN. A drainage branch pipe 
extending laterally from a soil or waste stack or building drain, 
with or without vertical sections or branches, that receives the 
discharge from two or more fixture drains or branches and con- 
ducts the discharge to the soil or waste stack or to the building 
drain. 

HORIZONTAL PIPE. Any pipe or fitting that makes an angle 
of less than 45 degrees (0.79 rad) with the horizontal. 

HOT WATER. Water at a temperature greater than or equal to 
1 10°F (43°C). 

HOUSE TRAP. See "Building trap." 

INDIRECT WASTE PIPE. A waste pipe that does not con- 
nect directly with the drainage system, but that discharges into 
the drainage system through an air break or air gap into a trap, 
fixture, receptor or interceptor. 

INDIVIDUAL SEWAGE DISPOSAL SYSTEM. A system 
for disposal of domestic sewage by means of a septic tank,cess- 
pool or mechanical treatment, designed for utilization apart 
from a public sewer to serve a single establishment or building. 

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



MDIVIPUAL WATEE SUPPLY. A water supply that serves 
one or more families, and that is not an approved public water 
supply. 

INTEECEPTOEo A device designed and installed to separate 
and retain for removal, by automatic or manual means, deleteri- 
ous, hazardous or undesirable matter from normal wastes, 
while permitting normal sewage or wastes to discharge into the 
drainage system by gravity. 



Expsmsiona, A loop, return bend or return offset that pro- 
vides for the expansion and contraction in a piping system 
and is utilized in tall buildings or where there is a rapid 
change of temperature, as in power plants, steam rooms and 
similar occupancies. 

Flexllbko Any joint between two pipes that permits one pipe 
to be deflected or moved without movement or deflection of 
the other pipe. 

MesinMsicalo See "Mechanical joint." 

Slip. A type of joint made by means of a washer or a special 
type of packing compound in which one pipe is slipped into 
the end of an adjacent pipe. 

LEAD=FEEE PIPE AND FITTINGS. Containing not more 
than 8.0-percent lead. 

LEAD=F]REE SOLDER AND FLUX. Containing not more 
than 0.2-percent lead. 

LEADER. An exterior drainage pipe for conveying storm wa- 
ter from roof or gutter drains to an approved means of disposal. 

LOCAL VENT STACK. A vertical pipe to which connections 
are made from the fixture side of traps and through which vapor 
or foul air is removed from the fixture or device utilized on bed- 
pan washers. 

MACERATING TOILET SYSTEMS. An assembly consist- 
ing of a water closet and sump with a macerating pump that is 
designed to collect, grind and pump wastes from the water 
closet and up to two other fixtures connected to the sump. 

MAIN, The principal pipe artery to which branches are con- 
nected. 

MANIFOLD. See "Plumbing appurtenance." 

MECHANICAL JOINT. A connection between pipes, fit- 
tings, or pipes and fittings that is not screwed, caulked, 
threaded, soldered, solvent cemented, brazed or welded. A 
joint in which compression is applied along the centerline of 
the pieces being joined. In some applications, the joint is part of 
a coupling, fitting or adapter. 

MEDICAL GAS SYSTEM. The complete system to convey 
medical gases for direct patient application from central supply 
systems (bulk tanks, manifolds and medical air compressors), 
with pressure and operating controls, alarm warning systems, 
related components and piping networks extending to station 
outlet valves at patient use points. 

MEDICAL VACUUM SYSTEMS. A system consisting of 
central- vacuum-producing equipment with pressure and oper- 
ating controls, shutoff valves, alarm-warning systems, gauges 
and a network of piping extending to and terminating with suit- 



12 



§003 DNTERNATSONAL PLUSyiBING CODE® 



able station inlets at locations where patient suction may be re- 
quired. 

NONPOTABLE WATER. Water not safe for drinking, per- 
sonal or culinary utilization. 

NUISANCE. Public nuisance as known in common law or in 
equity jurisprudence; whatever is dangerous to human life or 
detrimental to health; whatever structure or premises is not suf- 
ficiently ventilated, sewered, drained, cleaned or hghted, with 
respect to its intended occupancy; and whatever renders the air, 
or human food, drink or water supply unwholesome. 

OCCUPANCY. The purpose for which a building or portion 
thereof is utilized or occupied. 

OFFSET. A combination of approved bends that makes two 
changes in direction bringing one section of the pipe out of line 
but into a line parallel with the other section. 

IR. Outside the structure. 



PLUMBING, The practice, materials and fixtures utilized in 
the installation, maintenance, extension and alteration of all 
piping, fixtures, plumbing appliances and plumbing appurte- 
nances, within or adjacent to any structure, in connection with 
sanitary drainage or storm drainage facilities; venting systems; 
j^ and pubhc or private water supply systems. 

PLUMBING APPLIANCE. Any one of a special class of 
plumbing fixtures intended to perform a special fiinction. In- 
cluded are fixtures having the operation or control dependent 
on one or more energized components, such as motors, con- 
trols, heating elements, or pressure- or temperature-sensing el- 
ements. 

Such fixtures are manually adjusted or controlled by the 
owner or operator, or are operated automatically through one or 
more of the following actions: a time cycle, a temperature 
range, a pressure range, a measured volume or weight. 

PLUMBING APPURTENANCE. A manufactured device, 
prefabricated assembly or an on-the-job assembly of component 
parts that is an adjunct to the basic piping system and plumbing 
fixtures. An appurtenance demands no additional water supply 
and does not add any discharge load to a fixture or to the drainage 
system. 

PLUMBING FIXTURE. A receptacle or device that is either 
permanently or temporarily connected to the water distribution 
system of the premises and demands a supply of water there- 
from; discharges wastewater, liquid-bome waste materials or 
sewage either directly or indirectly to the drainage system of 
the premises; or requires both a water supply connection and a 
discharge to the drainage system of the premises. 

PLUMBING SYSTEM. Includes the water supply and distri- 
bution pipes; plumbing fixtures and traps; water-treating or 
water-using equipment; soil, waste and ventpipes; and sanitary 
and storm sewers and building drains; in addition to their re- 
spective connections, devices and appurtenances within a 
structure or premises. 

POLLUTION. An impairment of the quality of the potable 
water to a degree that does not create a hazard to the public 
health but that does adversely and unreasonably affect the aes- 
thetic qualities of such potable water for domestic use. 



POTABLE WATER. Water free from impurities present in 
amounts sufficient to cause disease or harmful physiological 
effects and conforming to the bacteriological and chemical qu- 
ality requirements of the Public Health Service Drinking Water 
Standards or the regulations of the public health authority hav- 
ing jurisdiction. 

PRIVATE. In the classification of plumbing fixtures, "private" 
applies to fixtures in residences and apartments, and to fixtures 
in nonpublic toilet rooms of hotels and motels and similar 
installations in buildings where the plumbing fixtures are 
intended for utilization by a family or an individual. 

PUBLIC OR PUBLIC UTILIZATION. In the classification 
of plumbing fixtures, "public" applies to fixtures in general toi- 
let rooms of schools, gymnasiums, hotels, airports, bus and 
railroad stations, public buildings, bars, public comfort sta- 
tions, office buildings, stadiums, stores, restaurants and other 
installations where a number of fixtures are installed so that 
their utilization is similarly unrestricted. 

PUBLIC WATER MAIN. A water supply pipe for pubhc uti- 
lization controlled by public authority. 

QUICK-CLOSING VALVE. A valve or faucet that closes au- 
tomatically when released manually or that is controlled by a 
mechanical means for fast-action closing. 

REABY ACCESS. That which enables a fixture, appliance or 
equipment to be directly reached without requiring the removal 
or movement of any panel, door or similar obstruction and 
without the use of a portable ladder, step stool or similar device. 

REDUCED PRESSURE PRINCIPLE BACKFLOW 
PREVENTER. A backflow prevention device consisting of 
two independently acting check valves, intemally force-loaded 
to a normally closed position and separated by an intermediate 
chamber (or zone) in which there is an automatic relief means 
of venting to the atmosphere, intemally loaded to a normally 
open position between two tightly closing shutoff valves and 
with a means for testing for tightness of the checks and opening 
of the relief means. 

REGISTERED DESIGN PROFESSIONAL. An individual 
who is registered or licensed to practice professional architec- 
ture or engineering as defmed by the statutory requirements of 
the professional registration laws of the state or jurisdiction in 
which the project is to be constructed. 

RELIEF VALVE 



A pressure-actuated valve held 
closed by a spring or other means and designed to relieve 
pressure automatically at the pressure at which such valve is 
set. 

Temperature amd pressmre relielF(T&P) valve, A combi- 
nation relief valve designed to function as both a tempera- 
ture relief and a pressure relief valve. 

Temperature relief valve. A temperature-actuated valve 
designed to discharge automatically at the temperature at 
which such valve is set. 

RELIEF VENT, A vent whose primary fiinction is to provide 
circulation of air between drainage and vent systems. 

RIMo An unobstructed open edge of a fixture. 



2003 fNTERNATJONAL PLUMBING CODE® 



U 



DEFINITIONS 



MSER. See "Water pipe, riser." 

ROOF DRAIN. A drain installed to receive water collecting 
on the surface of a roof and to discharge such water into a leader 
or a conductor. 

ROUGH-IN. Parts of the plumbing system that are installed 
prior to the installation of fixtures. This includes drainage, wa- 
ter supply, vent piping and the necessary fixture supports and 
any fixtures that are built into the structure. 

SELF-CLOSING FAUCEX A faucet containing a valve that 
automatically closes upon deactivation of the opening means. 

SEPARATOR. See "Interceptor." 

SEWAGE. Any liquid waste containing animal or vegetable 
matter in suspension or solution, including liquids containing 
chemicals in solution. 

SEWAGE EJECTORS. A device for lifting sewage by en- 
training the sewage in a high- velocity jet of steam, air or water. 



Building sewer. See "Building sewer." 

Public sewer. A common sewer directly controlled by pub- 
lic authority. 

Sanitary sewer. A sewer that carries sewage and excludes 
storm, surface and ground water. 

Storm sewer. A sewer that conveys rainwater, surface wa- 
ter, subsurface water and similar liquid wastes. 

SLOPE. The fall (pitch) of a line of pipe in reference to a hori- 
zontal plane. In drainage, the slope is expressed as the fall in 
units vertical per units horizontal (percent) for a length of pipe. 

SOIL PIPE. A pipe that conveys sewage containing fecal mat- 
ter to the building drain or building sewer. 

SPILLPROOF VACUUM BREAKER. An assembly 
consisting of one check valve force- loaded closed and an 
air-inlet vent valve force-loaded open to a tmosphere, posi- 
tioned downstream of the check valve, and located between 
and including two tightly closing shutoff valves and a test cock. 

STACK. A general term for any vertical line of soil, waste, 
vent or inside conductor piping that extends through at least 
one story with or without offsets. 

STACK VENT. The extension of a soil or waste stack above 
the highest horizontal drain connected to the stack. 

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

STERILIZER 

Boiling type, A boiling-type sterilizer is a fixture of a 
nonpressure type utilized for boiling instruments, utensils 
or other equipment for disinfection. These devices are por- 
table or are connected to the plumbing system. 

Instrument. A device for the sterilization of various instm- 
ments. 

Pressure (autoclave). A pressure vessel fixture designed to 
utilize steam under pressure for sterilizing. 

Pressure instrument washer sterilizer. A pressure instru- 
ment washer sterilizer is a pressure vessel fixture designed 



to both wash and sterilize instmments during the operating 
cycle of the fixture. 

Utensil. A device for the sterilization of utensils as utilized 
in health care services. 

Water, A water sterilizer is a device for steriliz,ing water and 
storing sterile water. 



.IZER VENT. A separate pipe or stack, indirectly 
connected to the building drainage system at the lower termi- 
nal, that receives the vapors from nonpressure sterilizers, or the 
exhaust vapors from pressure sterilizers, and conducts the va- 
pors directly to the open air. Also called vapor, steam, atmo- 
spheric or exhaust vent. 

DRAIN, See "Drainage system, storm." 

RE. That which is built or constructed or a portion 
thereof 



L A drain that collects subsurface water or 
seepage water and conveys such water to a place of disposal. 

SUMP. A tank or pit that receives sewage or liquid waste, lo- 
cated below the normal grade of the gravity system and that 
must be emptied by mechanical means. 

SUMP PUMP, An automatic water pump powered by an elec- 
tric motor for the removal of drainage, except raw sewage, 
from a sump, pit or low point. 

SUMP VENT. A vent from pneumatic sewage ejectors, or sim- 
ilar equipment, that terminates separately to the open air. 

SUPPORTS. Devices for supporting and securing pipe, fix- 
tures and equipment. 



POOL, Any structure, basin, chamber or tank 
containing an artificial body of water for swimming, diving or 
recreational bathing having a depth of 2 feet (610 mm) or more 
at any point. 

TEMPERED WATER, Water having a temperature range be- 
tween 85 °F (29°C) and 110°F (43°C). 

THIRD-PARTY CERTIFICATION AGENCY. An approved 
agency operating a product or material certification sytem that 
incorporates initial product testing, assessment and surveillance 
of a manufacturer's quality control system. 

THIRD=PARTY CERTIFIED. Certification obtained by the 
manufacturer indicating that the function and performance 
characteristics of a product or material have been determined 
by testing and ongoing surveillance by an approved third-party 
certification agency. Assertion of certification is in the form of 
identification in accordance with the requirements of the 
third-party certification agency. 

THIRD-PARTY TESTED. Procedure by which an approved 
testing laboratory provides documentation that a product, ma- 
terial or system conforms to specified requirements. 

TRAP. A fitting or device that provides a liquid seal to prevent 
the emission of sewer gases without materially affecting the 
flow of sewage or wastewater through the trap. 

TRAP SEAL. The vertical distance between the weir and the 
top of the dip of the trap. 



14 



2003 INTERNATIONAL PLUMBING CODE® 



DERMITIONS 



UNSTABLE GROUNB. Earth that does not provide a uni- 
form bearing for the barrel of the sewer pipe between the joints 
at the bottom of the pipe trench. 

VACUUM. Any pressure less than that exerted by the atmo- 
sphere. 

VACUUM BREAKER. A type of backflow preventer in- 
stalled on openings subject to normal atmospheric pressure that 
prevents backflow by admitting atmospheric pressure through 
ports to the discharge side of the device. 

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 
backpressure. 

VERTICAL PIPE. Any pipe or fitting that makes an angle of 
45 degrees (0.79 rad) or more with the horizontal. 

WALL-HUNG WATER CLOSET, A wall-mounted water 
closet installed in such a way that the fixture does not touch the 
floor. 

WASTE. The discharge from any fixture, appliance, area or 
appurtenance that does not contain fecal matter. 

WASTE PIPE. A pipe that conveys only waste. 

WATER-HAMMER ARRESTOR. A device utilized to ab- 
sorb the pressure surge (water hammer) that occurs when water 
flow is suddenly stopped in a water supply system. 

WATER HEATER. Any heating appliance or equipment that 
heats potable water and supplies such water to the potable hot 
water distribution system. 

WATER MAIN. A water supply pipe or system of pipes, in- 
stalled and maintained by a city, township, county, public util- 
ity company or other public entity, on public property, in the 
street or in an approved dedicated easement of public or com- 
munity use. 

WATER OUTLET. A discharge opening through which water 
is supplied to a fixture, into the atmosphere (except into an open 
tank that is part of the water supply system), to a boiler or heat- 
ing system, or to any devices or equipment requiring water to 
operate but which are not part of the plumbing system. 

WATER PIPE 

Riser. A water supply pipe that extends one full story or 
more to convey water to branches or to a group of fixtures . 

Water dfistribetflora pipe, A pipe within the structure or on 
the premises that conveys water from the water service pipe, 
or from the meter when the meter is at the structure, to the 
points of utilization. 

Water servke pipe. The pipe from the water main or other 
source of potable water supply, or from the meter when the 
meter is at the public right of way, to the water distribution 
system of the building served. 

WATER SUPPLY SYSTEM. The water service pipe, water 
distribution pipes, and the necessary connecting pipes, fittings. 



control valves and all appurtenances in or adjacent to the struc- 
ture or premises. 

WELL 



A well constructed by boring a hole in the ground 
with an auger and installing a casing. 

DiroEedl, A well constructed by making a hole in the ground 
with a drilling machine of any type and installing casing and 



screen. 



, A well constructed by driving a pipe in the ground. 
The drive pipe is usually fitted with a well point and screen. 

EDMg. A w ell constructed by e xcavating a large-diameter 
shaft and installing a casing. 

WHIRLPOOL BATHTUB. Aplumbing appliance consisting 
of a bathtub fixture that is equipped and fitted with a circulating 
piping system designed to accept, circulate and discharge bath- 
tub water upon each use. 

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. 



2003 IWTEeWATIONAL PLOMBIMG CODE® 



15 



IS 2003 SMTERNAT50NAL PLUMBING CODE® 



L 



IL 



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

30L2 System iestelktiomo Plumbing shall be installed with 
due regard to preservation of the strength of structural mem- 
bers and prevention of damage to v(/alls and other surfaces thr- 
ough fixture usage. 

301.3 Coramectioms to the samitary dranmage systemo All 
plumbing fixtures, drains, appurtenances and appliances used 
to receive or discharge liquid wastes or sewage shall be directly 
connected to the sanitary drainage system of the building or 
premises, in accordance with the requirements of this code. 
This section shall not be construed to prevent the indirect waste 
systems required by Chapter 8. 



Every plumbing fixture, 
device or appliance requiring or using water for its proper oper- 
ation shall be directly or indirectly connected to the water sup- 
ply system in accordance with the provisions of this code. 

3Q13 Pipe, tanbe amd iittimg sizes. Unless otherwise specified, 
the pipe, tube and fitting sizes specified in this code are ex- 
pressed in nominal or standard sizes as designated in the refer- 
enced material standards. 

301 .6 ProlitbBted locatioms. Plumbing systems shall not be lo- 
cated in an elevator shaft or in an elevator equipment room. 

Esceptioni Floor drains, sumps and sump pumps shall be 
permitted at the base of the shaft provided they are indirectly 
connected to the plumbing system. 

301.7 C®iifflicts. Where conflicts between this code and the 
conditions of the listing or the manufacturer's installation in- 
structions occur, the provisions of this code apply. 

Esceptlora; Where a code provision is less restrictive than 
the conditions of the listing of the equipment or apphance or 
the manufacturer's installation instructions, the conditions 
of the listing and manufacturer's installation instructions 
shall apply. 



302.1 Detrimental ©r daBiiger©M§ materials. Ashes, cinders or 
rags; flammable, poisonous or explosive liquids or gases; oil, 
grease or any other insoluble material capable of obstructing, 
damaging or overloading the building drainage or sewer sys- 
tem, or capable of interfering with the normal operation of the 
sewage treatment processes, shall not be deposited, by any me- 
ans, into such systems. 



wastes. Waste products from manufacturing 
or industrial operations shall not be introduced into the public 
sewer until it has been determined by the code official or other 
authority having jurisdiction that the introduction thereof will 
not damage the public sewer system or interfere with the func- 
tioning of the sewage treatment plant. 



3®3.1 IdlemtilBcatDonio Each length of pipe and each pipe fitting, 
trap, fixture, material and device utilized in a plumbing system 
shall bear the identification of the manufacturer. 



s. All materials used shall be in- 
stalled in strict accordance with the standards under which the 
materials are accepted and approved. In the absence of such in- 
stallation procedures, the manufacturer's installation instruc- 
tions shall be followed. Where the requirements of referenced 
standards or manufacturer's installation instructions do not 
conform to minimum provisions of this code, the provisions of 
this code shall apply. 

3©3.3 Plastic pipe, fflttings audi compomemts. All plastic pipe, 
fittings and components shall be third-party certified as con- 
forming to NSF 14. 

303,4 Tfeird-party testimg arad certifisati^m. All plumbing 
products and materials shall comply with the referenced stan- 
dards, specifications and performance criteria of this code and 
shall be identified in accordance with Section 303. 1 . When re- 
quired by Table 303.4, plumbing products and materials shall 
either be tested by an approved third-party testing agency or 
certified by an approved third-party certification agency. 



GemeraE. Plumbing systems shall be designed and in- 
stalled in accordance with Sections 304.2 through 304.4 to pre- 
vent rodents from entering structures. 

304.2 Stiraiiiier plates. All strainer plates on drain inlets shall 
be designed and installed so that all openings are not greater 
than 0.5 inch (12.7 mm) in least dimension. 

304.3 Meter Iboses, Meter boxes shall be constructed in such a 
manner that rodents are prevented from entering a structure by 
way of the water service pipes connecting the meter box and 
the structure. 



In or on structures where openings 
have been made in walls, floors or ceilings for the passage of 
pipes, such openings shall be closed and protected by the in- 
stallation of approved metal collars that are securely fastened 
to the adjoining structure. 



2003 JMTEeWATIOW^L PLUSVIBSWG CODE® 



17 



GE^aERAL REGULATSOMS 



TABLE 303.' 
PRODUCTS AMD ^ATERSALS REQUSeWQ THiRP°F^RTY TESTIMQ AMD THiRD-PARTY CERTIFICATIOM 



PRODUCT OR MATERIAL 


TH8RD-PARTY CERTIFSED 


THIRD-PARTY TESTED 


Portable water supply system components and potable 
water fixture fittings 


Required 


— 


Sanitary drainage and vent system components 


Plastic pipe, fittings and pipe-related components 


All others 


Waste fixture fittings 


Plastic pipe, fittings and pipe-related components 


All others 


Storm drainage system components 


Plastic pipe, fittings and pipe-related components 


All others 


Plumbing fixtures 





Required 


Plumbing appliances 


Required 





Backflow prevention devices 


Required 


— 


Water distribution system safety devices 


Required 





Special waste system components 


— 


Required 


Subsoil drainage system components 


— 


Required 



PROTECTION OF PBPES AND 
PLUMBING SYSTEM COMPOi^EMTS 

305.1 Corrosion. 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 the lime and acid of 
concrete, cinder or other corrosive material. Sheathing or wrap- 
ping shall allow for expansion and contraction of piping to pre- 
vent any nibbing action. Minimum wall thickness of material 
shall be 0.025 inch (0.64 mm). 

3CIS.2 Breakage. Pipes passing through or under walls shall be 
protected from breakage. 

3053 Stress and strain. Piping in a plumbing system shall be 
installed so as to prevent strains and stresses that exceed the 
structural strength of the pipe. Where necessary, provisions 
shall be made to protect piping from damage resulting from ex- 
pansion, contraction and structural settlement. 

30S.4 Sleeves. Annular spaces between sleeves and pipes shall 
be filled or tightly caulked in an approved manner. Annular 
spaces between sleeves and pipes in fire-resistance-rated as- 
semblies shall be filled or tightly caulked in accordance with 
the International Building Code. 

3®5.5 Pipes through or under footings or foMndation wallls. 
Any pipe that passes under a footing or through a foundation 
wall shall be provided with a relieving arch, or a pipe sleeve 
pipe shall be built into the foundation wall. The sleeve shall be 
two pipe sizes greater than the pipe passing through the wall. 

305.6 Freezing. Water, soil and waste pipes shall not be in- 
stalled outside of a building, in attics or crawl spaces, con- 
cealed in outside walls, or in any other place subjected to 
freezing temperature unless adequate provision is made to pro- 
tect such pipes from freezing by insulation or heat or both. Ex- 
terior water supply system piping shall be installed not less 



than 6 inches (152 mm) below the frost line and not less than 12 
inches (305 mm) below grade. 



Building sewers that connect to pri- 
vate sewage disposal systems shall be a minimum of 
[NUMBER] inches (mm) below finished grade at the point of 
septic tank connection. Building sewers shall be a minimum 
of [NUMBER] inches (mm) below grade. 



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

305.8 Protectiom against physical damage. In concealed lo- 
cations where piping, other than cast-iron or galvanized steel, 
is installed through holes or notches in studs, joists, rafters or 
similar members less than 1 .5 inches (38 mm) from the nearest 
edge of the member, the pipe shall be protectedby shield plates. 
Protective shield plates shall be a minimum of 0.062-inch-thick 
(1 .6 mm) steel, shall cover the area of the pipe where the mem- 
ber is notched or bored, and shall extend a minimum of 2 inches 
(5 1 mm) above sole plates and below top plates. 



jf comporaents of plumbing system. 
Components of a plumbing system installed along alleyways, 
driveways, parking garages or other locations exposed to 
damage shall be recessed into the wall or otherwise protected in 
an approved manner. 



Tl 



IG, EXCAVATION AND BACKFILL 



.1 Siapport off piping. Buried piping shall be supported 
throughout its entire length. 



ig. Where trenches are excavated 
such that the bottom of the trench forms the bed for the pipe, 
solid and continuous load-bearing support shall be provided 



US 



2003 5NTERNATB0NAL PLUMBING CODE® 



GENERAL REGULATIONS 



between joints. Bell holes, hub holes and coupling holes shall 
be provided at points where the pipe is joined. Such pipe shall 
not be supported on blocks to grade. In instances where the ma- 
terials manufacturer's installation instructions are more restric- 
tive than those prescribed by the code, the material shall be 
installed in accordance with the more restrictive requirement. 

306»2,1 OverexcavaitHOiiii. Where trenches are excavated 
below the installation level of the pipe such that the bottom 
of the trench does not form the bed for the pipe, the trench 
shall be backfilled to the installation level of the bottom of 
the pipe with sand or fme gravel placed in layers of 6 inches 
(152 mm) maximum depth and such backfill shall be 
compacted after each placement. 

306.2.2 Rock removal. Where rock is encountered in 
trenching, the rock shall be removed to a minimum of 3 
inches (76 mm) below the installation level of the bottom of 
the pipe, and the trench shall be backfilled to the installation 
level of the bottom of the pipe with sand tamped in place so 
as to provide uniform load-bearing support for the pipe 
between joints. The pipe, including the joints, shall not rest 
on rock at any point. 

306.2.3 SMt Eoad-beariEig materials. If soft materials of 
poor load-bearing quality are found at the bottom of the 
trench, stabilization shall be achieved by overexcavating a 
minimum of two pipe diameters and backfilling to the 
installation level of the bottom of the pipe with fine gravel, 
crushed stone or a concrete foundation. The concrete 
foundation shall be bedded with sand tamped into place so 
as to provide uniform load-bearing support for the pipe 
between joints. 

306.3 Backillimg. Backfill shall be free from discarded 
construction material and debris. Loose earth free from rocks, 
broken concrete and frozen chunks shall be placed in the trench 
in 6-inch (1 52 mm) layers and tamped in place until the crown 
of the pipe is covered by 12 inches (305 mm) of tamped earth. 
The backfill under and beside the pipe shall be compacted for 
pipe support. Backfill shall be brought up evenly on both sides 
of the pipe so that the pipe remains aligned. In instances where 
the manufacturer's installation instructions for materials are 
more restrictive than those prescribed by the code, the material 
shall be installed in accordance with the more restrictive 
requirement. 

306.4 Tmninielmg. Where pipe is to be installed by tunneling, 
jacking or a combination of both, the pipe shall be protected 
from damage during installation and from subsequent uneven 
loading. Where earth tunnels are used, adequate supporting 
structures shall be provided to prevent future settling or caving. 



STRUCTURAL SAFETY 

, 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 that must be changed or replaced shall be left in a safe 
structural condition in accordance with the requirements of the 
International Building Code. 



A framing member 
shall not be cut, notched or bored in excess of limitations 
specified in the International Building Code. 

307.3 FsmeilraitDOinis of IFloor/cenlimg assemblies amd 
Iflre-resnsitafflice-raited assemblfies. Penetrations of floor/ceil- 
ing assemblies and assemblies required to have a 
fire-resistance rating shall be protected in accordance with the 
International Building Code. 



Truss members and compo- 
nents shall not be cut, drilled, notched, spliced or otherwise al- 
tered in any way without written concurrence and approval of a 
registered design professional. Alterations resulting in the ad- 
dition of loads to any member (e.g., HVAC equipment, water 
heater) shall not be permitted without verification that the truss 
is capable of supporting such additional loading. 

307.5 Tireiiicln locatnom. Trenches installed parallel to footings 
shall not extend below the 45-degree (0.79 rad) bearing plane 
of the footing or wall. 

307.6 PipBEg materials exposed witttoim plemmms. All piping 
materials exposed within plenums shall comply with the 
provisions of the International Mechanical Code. 



308.1 Gemeral. All plumbing piping shall be supported in 
accordance with this section. 

305.2 Piping seismic supports. Where earthquake loads are 
applicable in accordance with the building code, plumbing 
piping supports shall be designed and installed for the seismic 
forces in accordance with the International Building Code. 



Is, Hangers, anchors and supports shall support 
the piping and the contents of the piping. Hangers and 
strapping material shall be of approved material that will not 
promote galvanic action. 

308.4 Struciiiiiiral attadiment Hangers and anchors shall be 
attached to the building construction in an approved manner. 

305.5 ImitervaE off support Pipe shall be supported in 
accordance with Table 308.5. 



ini: The interval of support for piping systems 
designed to provide for expansion/contraction shall 
conform to the engineered design in accordance with 
Section 105.4. 

308.6 Sway toracimg. Rigid support sway bracing shall be 
provided at changes in direction greater than 45 degrees 
(0.79 rad) for pipe sizes 4 inches (102 mm) and larger. 



.7 Aochorage. Anchorage s hall be provided to restrain 
drainage piping from axial movement. 

308.7,1 Locattiom, For pipe sizes greater than 4 inches (102 
mm), restraints shall be provided for drain pipes at all 
changes in direction and at all changes in diameter greater 
than two pipe sizes. Braces, blocks, rodding and other 
suitable methods as specified by the coupling manufacturer 
shall be utilized. 



2003 1WTERWAT50WAL PLUMBING CODE® 



■59 



GEr^ERAL REGULATIO^SS 



TABLE 308.5 
HANGER SFACiMG 



PIPING MATERIAL 


MAXIMUM 

HORIZONTAL 

SPACING 

(feet) 


MAXiaHUM 

VERTICAL 

SPACfNG 

(feet) 


ABSpipe 


4 


10" 


Aluminum tubing 


10 


15 


Brass pipe 


10 


10 


Cast-iron pipe 


5^ 


15 


Copper or copper-alloy pipe 


12 


10 


Copper or copper-allow tubing, 
1 V4-inch diameter and smaller 


6 


10 


Copper or copper-alloy tubing, 
1 '/2-inch diameter and larger 


10 


10 


Cross-linked polyethylene (PEX) 
pipe 


2.67 
(32 inches) 


10" 


Cross-linked polyethylene/ 
Aluminum/cross-linked polyethy- 
lene (PEX-AL-PEX) pipe 


2.67 
(32 inches) 


4" 


CPVC pipe or tubing, I inch 
or smaller 


3 


10" 


CPVC pipe or tubing, 1 '/4 inches 
or larger 


4 


10'' 


Steel pipe 


12 


15 


Lead pipe 


Continuous 


4 


PB pipe or tubing 


2.67 
(32 inches) 


4 


Polyethylene/aluminum/polyeth- 
ylene (PE-AL-PE) pipe 


2.67 
(32 inches) 


4" 


PVC pipe 


4 


10" 


Stainless steel drainage systems 


10 


10" 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 

a. The maximum horizontal spacing of cast-iron pipe hangers shall be 
increased to 10 feet where 10-foot lengths of pipe are installed. 

b. Midstory guide for sizes 2 inches and smaller. 



308.8 Expansion Joint fittings. Expansion joint fittings shall 
be used only where necessary to provide for expansion and 
contraction of the pipes. Expansion joint fittings shall be of 
the typical material suitable for use with the type of piping in 
which such fittings are installed. 

308.9 Stacks. Bases of stacks shall be supported by concrete, 
brick laid in cement mortar or metal brackets attached to the 
building or by other approved methods. 



[5 Parallel water distribution systems. Piping bundles 
for manifold systems shall be supported in accordance with 
Table 308.5. Support at changes in direction shall be in 
accordance with the manufacturer's installation instructions. 



Hot and cold water piping shall not be grouped in the same 
bundle. 

SECTION 309 
FLOOD HAZARD RES8STANCE 

3©9ol General. Plumbing systems and equipment in structures 
erected in flood hazard areas shall be constructed in accordance 
with the requirements of this section and the International 
Building Code. 



hazard. For structures located in flood hazard 
areas, the following systems and equipment shall be located at 
or above the design flood elevation: 



ni The following systems are permitted to be lo- 
cated below the design flood elevation provided that the sys- 
tems are designed and installed to prevent water from 
entering or accumulating within their components and the 
systems are constructed to resist hydrostatic and hydrody- 
namic loads and stresses, including the effects of buoyancy, 
during the occurrence of flooding to the design flood eleva- 
tion. 

1 . All water service pipes. 

2. Pump seals in individual water supply systems where 
the pump is located below the design flood elevation. 

3. Covers on potable water wells shall be sealed, except 
where the top of the casing well or pipe sleeve is 
elevated to at least 1 foot (304.8 mm) above the design 
flood elevation. 

4. All sanitary drainage piping. 

5. All storm drainage piping. 

6. Manhole covers shall be sealed, except where elevated 
to or above the design flood elevation. 

7. All other plumbing fixtures, faucets, fixture fittings, 
piping systems and equipment. 

8. Water heaters. 

9. Vents and vent systems. 

^.3 Flood hazard areas subject to high-velocity wave 
Structures located in flood hazard areas subject to 
high-velocity wave action shall meet the requirements of 
Section 309.2. The plumbing systems, pipes and fixtures shall 
not be mounted on or penetrate through walls intended to break 
away under flood loads. 



SECT80N 310 
ID TOILET ROOR/ 



REQUIREMENTS 



310.1 Light and ventOation. Washrooms and toilet rooms shall 
be illuminated and ventilated in accordance with the 
International Building Code and International Mechanical 
Code. 



js and piping. Piping,, fixtures or 
equipment shall not be located in such a manner as to interfere 
with the normal operation of windows, doors or otlier means of 
egress openings. 



2003 INTERNATiONAL PLUMBING CODE® 



GENERAL REGULATIONS 



Interior finish surfaces of toilet rooms 
shall con^Iy with the International Building Code. 

310.4 Water closet compartmemit. Each water closet utilized 
hy the public or employees shall occupy a separate compart- 
ment with walls or partitions and a door enclosing the fixtures 
to ensure privacy. 



1 . Water closet compartments shall not be required in a 
single-occupant toilet room with a lockable door. 

2. Toilet rooms located in day care and child-care 
facilities and containing two or more water closets 
shall be permitted to have one water closet without 
an enclosing compartment. 



li 



rrmuzn 



31 Ll GemsraL Toilet facilities shall be provided for 
construction workers and such facilities shall be maintained in 
a sanitary condition. Construction worker toilet facilities of the 
nonsewer type shall conform to ANSI Z4.3. 



SECTSOM 312 
TESTS AMD DMSPECTIOi 



312,1 Required tests. The permit holder shall make the 
applicable tests prescribed in Sections 312.2 through 312.9 to 
determine compliance with the provisions of this code. The 
permit holder shall give reasonable advance notice to the code 
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 
the permit holder shall be responsible for determining that the 
work will withstand the test pressure prescribed in the 
following tests. All plumbing system piping shall be tested 
with either water or, for piping systems other than plastic, by 
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 code official shall require the removal of any 
cleanouts if necessary to ascertain whether the pressure has 
reached all parts of the system. 

312.1,1 Test gaMges, Gauges used for testing shall be as 
follows: 

1 . Tests requiring a pressure of 1 psi or less shall utilize a 
testing gauge having increments of 0.10 psi or less. 

2. Tests requiring a pressure of greater than 1 psi but less 
than or equal to 1 00 psi shall utilize a testing gauge 
having increments of 1 psi or less. 

3. Tests requiring a pressure of greater than 100 psi shall 
utilize a testing gauge having increments of 2 psi or 
less. 



5§t, 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 the 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 a 10-foot (3048 mm) head of water. In 
testing successive sections, at least the upper 10 feet (3048 
mm) of the next preceding section shall be tested so that no 
joint orpipe in the building, except the uppermost 1 feet (3048 
mm) of the system, shall have been submitted to a test of less 
than a 10-foot (3048 mm) head of water. This pressure shall be 
held for at least 1 5 minutes. The system shall then be tight at all 
points. 



312,3 Bralmage amd verat anr test. An air test shall be made by 
forcing air into the system until there is a uniform gauge 
pressure of 5 pounds per square inch (psi) (34.5 kPa) or 
sufficient to balance a 10-inch (254 mm) column of mercury. 
This pressure shall be held for a test period of at least 15 min- 
utes. Any adjustments to the test pressure required because of 
changes in ambient temperature or the seating of gaskets shall 
be made prior to the beginning of the test period. 



312,4 Dramage amd verat fleafl test. The final test of the 
completed drainage and vent system shall be visual and in suf- 
ficient detail to determine compliance with the provisions of this 
code except that the plumbing shall be subjected to a smoke test 
where necessary for cause. Where the smoke test is utilized, 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, the stack openings shall be closed and a 
pressure equivalent to a 1 -inch water column (248.8 Pa) shall be 
held for a test period of not less than 15 minutes. 



SMpply system test. Upon completion of a 
section of or the entire water supply system, the system, or 
portion completed, shall be tested and proved tight under a 
water pressure not less than the working pressure of the system; 
or, for piping systems other than plastic, by an air test of not less 
than 50 psi (344 kPa). The water utilized for tests shall be 
obtained from a potable source of supply. The required tests 
shall be performed in accordance with this section and Section 
107. 

312.6 Gravity sewer test. 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 1 0-foot (3048 mm) head 
of water and maintaining such pressure for 15 minutes. 

312.7 Forced sewer test. Forced sewer tests shall consist of 
plugging the end of the building sewer at the point of 
connection with the pubhc sewer and applying a pressure of 5 
psi (34.5 kPa) greater than the pump rating, and maintaining 
such pressure for 15 minutes. 

312.8 Storm drainage system test. Storm drain systems 
within a building shall be tested by water or air in accordance 
with Section 3 12.2 or 3 12.3. 

312,51 Imspectiom and testlmg of backilow preveetiomi 
assemMies, Inspection and testing shall comply with Sections 
312.9.1 and 3 12.9.2. 

312.9,1 Imspectioes. Annual inspections shall be made of 
all backflow prevention assemblies and air gaps to 
determine whether they are operable. 



21 



GENERAL REGULATiONS 



Reduced pressure principle backflow 
preventer assemblies, double check- valve assemblies, 
pressure vacuum breaker assemblies, reduced pressure 
detector fire protection backflow prevention assemblies, 
double check detector fire protection backflow prevention 
assembhes, hose connection backflow preventers, and 
spill-proof vacuum breakers shall be tested at the time of 
installation, immediately after repairs or relocation and at 
least annually. The testing procedure shall be performed in 
accordance with one of the following standards: 

ASSE 5013, ASSE 5015, ASSE 5020, ASSE 5047, 
ASSE 5048, ASSE 5052, ASSE 5056, CAN/CSA 
B64.10 



EQUIPMEiMT EFFfCIENCIES 

313.1 General Equipment efficiencies shall be in accordance 
with the International Energy Conservation Code. 



PISECTION 314 
CONDENSATE DISPOSAL 

Fuel-bMrning appliances. Liquid combustion byprod- 
ucts of condensing appliances shall be collected and discharged 
to an approved plumbing fixture or disposal area in accordance 
with the manufacturer's installation instructions. Condensate 
piping shall be of approved corrosion-resistant material and 
shall not be smaller than the drain connection on the appliance. 
Such piping shall maintain a minimum horizontal slope in the di- 
rection of discharge of not less than one-eighth unit vertical in 1 2 
units horizontal (1 -percent slope). 

314.2 Evaporators and cooling coils. Condensate drain sys- 
tems shall be provided for equipment and appliances containing 
evaporators or cooling coils. Condensate drain systems shall be 
designed, constmcted and installed in accordance with Sections 
314.2.1 through 314.2.3. 

314.2.1 Condensate disposal. Condensate from all cooling 
coils and evaporators shall be conveyed from the drain pan 
outlet to an approved place ofdisposal. Condensate shall not 
discharge into a street, alley or other areas so as to cause a 
nuisance. 

314.2.2 Drain pipe materials and sizes. Components of the 
condensate disposal system shall be cast iron, galvanized steel, 
copper, cross-linked polyethylene, polybutylene, polyethy- 
lene, ABS, CPVC, or PVC pipe or tubing. All components 
shall be selected for the pressure and temperature rating of the 
installation. Condensate waste and drain line size shall not be 
less than ^/4-inch (19 mm) intemal diameter and shall not 
decrease in size from the drain pan coimection to the place of 
condensate disposal. Where the drain pipes from more than 
one unit are manifolded together for condensate drainage, the 
pipe or tubing shall be sized in accordance with an approved 
method. All horizontal sections of drain piping shall be 
installed in uniform ahgnment at a uniform slope. 

314.2.3 Auxiliary and secondary drain systems. In 
addition to the requirements of Section 3 1 4.2. 1 , a secondary 



drain or auxiliary drain pan shall be required for each 
cooling or evaporator coil where damage to any building 
components will occur as a result of overflow from the 
equipment drain pan or stoppage in the condensate drain 
piping. One of the following methods shall be used: 

1 . An auxiliary drain pan with a separate drain shall be 
provided under the coils on which condensation will 
occur. The auxiliary pan drain shall discharge to a con- 
spicuous point of disposal to alert occupants in the 
event of a stoppage of the primary drain. The pan shall 
have a minimum depth of 1 . 5 inches (3 8 mm), shall not 
be less than 3 inches (76 mm) larger than the unit or the 
coil dimensions in width and length and shall be 
constructed of corrosion-resistant material. Metalhc 
pans shall have a minimiun thickness of not less than 
0.0276-inch (0.7 mm) galvanized sheet metal. 
Nonmetallic pans shall have a minimum thickness of 
not less than 0.0625 inch (1.6 mm). 

2. A separate overflow drain line shall be connected to the 
drain pan provided with the equipment. Such overflow 
drain shall discharge to a conspicuous point of 
disposal to alert occupants in the event of a stoppage of 
the primary drain. The overflow drain line shall 
connect to the drain pan at a higher level than the 
primary drain connection. 

3. An auxiliary drain pan without a separate drain line 
shall be provided under the coils on which condensate 
will occur. Such pan shall be equipped with a water 
level detection device that will shut off the equipment 
served prior to overflow of the pan. The auxiliary drain 
pan shall be constmcted in accordance with Item 1 of 
this section. 

314.2.4 Traps. Condensate drains shall be trapped as re- 
quired by the equipment or appliance manufacturer. 



22 



2003 IMTERHATIONAL PLUMBJf^G CODE® 



FDlTy[^ES, FAyCETS hWB FDITO^E FDTTDI 



GEMERAL 

401.1 Scope. This chapter shall govern the materials, design 
and installation of plumbing fixtures, faucets and fixture fit- 
tings in accordance with the type of occupancy, and shall pro- 
vide for the minimum number of fixtures for various types of 
occupancies. 

4(0)1.2 ProtanbEted iOxitiLires amid commecitioinis. Water closets hav- 
ing a concealed trap seal or an unventilated space or having walls 
that are not thoroughly washed at each discharge in accordance 
with ASME A112.19.2M shall be prohibited. Any water closet 
that permits siphonage of the contents of the bowl back into the 
tank shall be prohibited. Trough urinals shall be prohibited. 

4®!. 3 Water coraservatjoini. The maximum water flow rates 
and flush volume for plumbing fixtures and fixture fittings shall 
comply with Section 604.4. 

SECTDON mi 
RXTORE iyjATERDALS 

4(D)2<,1 QealMy off ffSxtares. Plumbing fixtures shall be con- 
structed of approved materials, with smooth, impervious sur- 
faces, free from defects and concealed fouling surfaces, and 
shall conform to standards cited in this code. All porcelain 
enameled surfaces on plumbing fixtures shall be acid resistant. 



4(D2.2 Materials for spedaMy IFixtoires. Materials for specialty 
fixtures not otherwise covered in this code shall be of stainless 
steel, soapstone, chemical stoneware or plastic, or shall be 
lined with lead, copper-base alloy, nickel-copper alloy, corro- 
sion-resistant steel or other material especially suited to the ap- 
plication for which the fixture is intended. 

4(0)2o3 Slueet copper. Sheet copper for general applications shall 
conform to ASTM B 152 and shall not weigh less than 12 
ounces per square foot (3.7 kg/m^). 

402.4 Sflieet lead. Sheet lead for pans shall not weigh less than 
4 pounds per square foot (19.5 kg/m^) coated with an asphalt 
paint or other approved coating. 

SECTDON 403 
BiDWlfiiUli PLUSViBDNG FACDLmES 

403,1 Mmimem Miiinniber of Hxtaires. Plumbing fixtures shall 
be provided for the type of occupancy and in the minimum 
number shown in Table 403.1. Types of occupancies not shown 
in Table 403.1 shall be considered individually by the code of- 
ficial. The number of occupants shall be determined by the In- 
ternational Building Code. Occupancy classification shall be 
determined in accordance with the International Building 
Code. 



TABLE 403.1 
MBER OF REQUIRED PLUMBIiMG FIXTURES^ 
(See Sectioims 403.2 and 403.3) 



NO. 


CLASSIFICATION 


OCCUPANCY 


DESCRIPTION 


WATER CLOSETS 

(URINALS SEE SECTION 

419.2) 


LAVATORIES 


BATHTUBS/ 
SHOWERS 


DRINKING 
FOUNTAIN 

(SEE 

SECTION 

410.1) 


OTHER 


MALE 


FEWiALE 


MALE 


FEWiALE 


1 


Assembly (see Sec- 
tions 403.2, 403.5 
and 403.6) 


A-l 


Theaters usually with 
fixed seats and other 
buildings for the 
performing arts and 
motion pictures 


1 per 125 


1 per 65 


1 per 200 


— 


1 per 500 


1 service sink 


A-2 


Nightclubs, bars, tav- 
erns, dance halls and 
buildings for similar 
purposes 


1 per 40 


1 per 40 


1 per 75 


— 


I per 500 


I service sink 


Restaurants, banquet 
halls and food courts 


1 per 75 


1 per 75 


1 per 200 


— 


1 per 500 


1 service sink 


A-3 


Auditoriums without 
permanent seating, art 
galleries, exhibition 
halls, museums, lecture 
halls, libraries, arcades 
and gymnasiums 


1 per 125 


1 per 65 


1 per 200 


— 


1 per 500 


1 service sink 


Passenger terminals 
and transportation 
facilities 


1 per 500 


1 per 500 


1 per 750 


— 


1 per 1,000 


1 service sink 


Places of worship and 
other religious services. 
Churches without 
assembly halls 


1 per 150 


1 per 75 


1 per 200 


— 


1 per 1,000 


1 service sink 



(continued) 



2003 INTERNAUOiMAL PLUMBIING CODE® 



23 



FIXTURES, FAUCETS AND FIXTURE FITTINGS 



TABLE 403.1— continued 









MINIMUM ^sy^ 


flBER OF REQUIRED PLUMBING FIXTURES^ 

[See Sections 403.2 and 403.3) 








NO. 


CLASSIFICATION 


OCCUPANCY 


DESCRIPTION 


WATER CLOSETS (URINALS 

SEE SECTION 

419.2) 


LAVATORIES 


BATHTUBS/ 
SHOWERS 


DRINKING 
FOUNTAIN 

(SEE 
SECTION 

410.1) 


OTHER 


MALE 


FEMALE 


MALE 


FEMALE 






A-4 


Coliseums, arenas, 
skating rinks, pools 
and tennis courts for 
indoor sporting 
events and activities 


1 per 75 for the 
first 1,500 and 1 
per 120 for the 
remainder 
exceeding 1,500 


1 per 40 for the 
first 1,500 and 1 
per 60 for the 
remainder ex- 
ceeding 1,500 


] per 200 


1 per 150 


— 


1 per 1,000 


1 service sink 


A-5 


Stadiums, amusement 
parks, bleachers and 
grandstands for 
outdoor sporting 
events and activities 


1 per 75 for the 
first 1,500 and 1 
per 120 for the 
remainder 
exceeding 1,500 


1 per 40 for the 
first 1,500 and 1 
per 60 for the 
remainder 
exceeding 1,500 


1 per 200 


1 per 150 


— 


1 per 1,000 


1 service sink 


2 


Business (see Sec- 
tions 403.2, 403.4 
and 403.6) 


B 


Buildings for 
the transaction of 
business, professional 
services, other 
services involving 
merchandise, office 
buildings, banks, 
light industrial and 
similar uses 


1 per 25 for the first 50 and 1 per 
50 for the remainder exceeding 50 


1 per 40 for the first 50 and 
1 per 80 for the remainder 
exceeding 50 


— 


1 per 100 


1 service sink 


3 


Educational 


E 


Educational facilities 


I per 50 


1 per 50 


— 


1 per 100 


1 service sink 


4 


Factory and 
industrial 


F-1 and F-2 


Structures in which 
occupants are en- 
gaged in work fabri- 
cating, assembly or 
processing of prod- 
ucts or materials 


1 per 100 


1 per 100 


(see Section 
411) 


1 per 400 


1 service sink 


5 


Institutional 


I-l 


Residential care 


1 per 10 


1 per 10 


IperS 


1 per 100 


1 service sink 


1-2 


Hospitals, ambulatory 
nursing home patients 


1 per room " 


1 per room" 


1 per 15 


1 per 100 


1 service sink 
per floor 


Employees, other 
than residential care*" 


1 per 25 


1 per 35 


— 


1 per 100 


— 


Visitors, other than 
residential care 


1 per 75 


1 per 100 


— 


1 per 500 


— 


1-3 


Prisons'' 


1 per cell 


1 per cell 


1 per 15 


1 per 100 


1 service sink 


1-3 


Reformitories, deten- 
tion centers, and cor- 
rectional centers'' 


1 per 15 


1 per 15 


1 per 15 


1 per 100 


1 service sink 


1-4 


Adult daycare and 
childcare*' 


1 per 15 


1 per 15 


1 per 15" 


1 per 100 


1 service sink 



(continued) 



24 



2003 INTERNATIONAL PLUI\^BING CODE® 



FIXTUI^ES, FAUCETS AMD FIXTURE FITTINGS 



TABLE 403.1— comtDoyed 
mEU OF REQUIRED PLUMBDIMG FIXTURES^ 
(See Sections 403.2 and 403.3) 



NO. 


CLASSIFICATION 


OCCUPANCY 


DESCRIPTION 


WATER CLOSETS 

(URINALS SEE 

SECTION 

419.2) 


LAVATORIES 


BATHTUBS/ 
SHOWERS 


DRINKING 

FOUNTAIN 

(SEE SECTION 

410.1) 


OTHER 


MALE 


FEMALE 


MALE 


FEMALE 


6 


Mercantile (see Sec- 
tions 403.2, 403.5 
and 403.6) 


M 


Retail stores, service 
stations, shops, 
salesrooms, markets 
and shopping centers 


1 per 500 


1 per 750 


— 


1 per 1,000 


1 service 
sink 


7 


Residential 


R-I 


Hotels, motels, 
boarding houses 
(transient) 


1 per guestroom 


1 per guestroom 


1 per 
guestroom 


— 


1 service 
sink 


R-2 


Dormitories, 
fraternities, sororities 
and boarding houses 
(not transient) 


1 per 10 


1 per 10 


IperS 


1 per 100 


1 service 
sink 


R-2 


Apartment house 


1 per dwelling unit 


1 per dwelling unit 


1 per dwelling 
unit 


— 


1 kitchen 
sink per 
dwelling 

unit; 1 
automatic 

clothes 

washer 
connection 

per 20 
dwelling 

units' 


R-3 


One- and two-family 
dwellings 


1 per dwelling unit 


1 per dwelling unit 


1 per dwelling 
unit 


— 


1 kitchen 
sink per 
dwelling 
unit; 1 
automatic 
clothes 
washer 
connection 

per 

dwelhng 

unit' 


R-4 


Residential 
care/assisted living 
facilities 


1 per 10 


1 per 10 


1 per 8 


1 per 100 


1 service 
sink 


8 


Storage (see 
Sections 403.2 and 
403.4) 


S-1 
S-2 


Structures for the 
storage of goods, 
warehouses, 
storehouse and freight 
depots. Low and 
Moderate Hazard. 


1 per 100 


1 per 100 


See 
Section 411 


1 per 1,000 


1 service 
sink 



a. The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. 

The number of occupants shall be determined by the International Building Code, 
h. Toilet facilities for employees shall be separate from facihties for inmates or patients. 

c. A single-occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient rooms shall be permitted where such room is pro- 
vided with direct access from each patient room and with provisions for privacy. 

d. For day nurseries, a maximum of one bathtub shall be required. 

e. For attached one- and two-family dwellings, one automatic clothes washer connection shall be required per 20 dwelling units. 



[B] 403ol.l UMisex toilet and bath fetureso Fixtures lo- 
cated within unisex toilet and bathing rooms complying 
with Section 404 are permitted to be included in determin- 
ing the minimum required number of fixtures for assembly 
and mercantile occupancies. 



Where plumbing fixtures are re- 
quired, separate facihties shall be provided for each sex. 



1 . Separate facilities shall not be required for private fa- 
cihties. 

2. Separate employee facilities shall not be required in 
occupancies in which 1 5 or less people are employed. 

3. Separate facilities shall not be required in structures 
or tenant spaces with a total occupant load, including 
both employees and customers, of 15 or less. 



2003 DMTERMATIONAL PLUMBDMG CODE® 



25 



FIXTURES, FAUCETS AND FIXTURE FITTIWGS 



4. Separate facilities shall not be required in mercantile 
occupancies in which the maximum occupant load is 
50 or less. 



sex. The required water 
closets, lavatories, and showers or bathtubs shall be distributed 
equally between the sexes based on the percentage of each sex 
anticipated in the occupant load. The occupant load shall be 
composed of 50 percent of each sex, unless statistical data ap- 
proved by the code official indicate a different distribution of 
the sexes. 

4§3o4 Location of employee toilet Ifacilitnes m occepamdes 
other tham assembly or mercamitile. Access to toilet facilities 
in occupancies other than mercantile and assembly occupan- 
cies shall be from within the employees' working area. Em- 
ployee facilities shall be either separate facilities or combined 
employee and public facilities. 



m; Facilities that are required for employees in stor- 
age structures or kiosks, and are located in adjacent stmctures 
under the same ownership, lease or control, shall be a maxi- 
mum travel distance of 500 feet ( 1 52 m) from the employees' 
working area. 



The required toilet facilities in oc- 
cupancies other than assembly or mercantile shall be lo- 
cated not more than one story above or below the 
employee's working area and the path of travel to such facil- 
ities shall not exceed a distance of 500 feet (152 m). 



a: The location and maximum travel distances 
to required employee toilet facilities in factory and indus- 
trial occupancies are permitted to exceed that required in 
Section 403.4.1, provided the location and maximum 
travel distance are approved by the code official. 

,S Location off employee toilet facilities in mercamtile 
amid assembly occuspancJes. Employees shall be provided with 
toilet facilities in building and tenant spaces utilized as restau- 
rants, nightclubs, places of public assembly and mercantile oc- 
cupancies. The employee facilities shall be either separate 
facilities or combined employee and public facilities. The re- 
quired toilet facilities shall be located not more than one story 
above or below the employees ' work area and the path of travel 
to such facilities, in other than covered malls, shall not exceed a 
distance of 500 feet (152 m). The path of travel to required fa- 
cilities in covered malls shall not exceed a distance of 300 feet 
(91440 mm). 



m Employee toilet facilities shall not be required 
in tenant spaces where the travel distance from the main en- 
trance of the tenant space to a central toilet area does not ex- 
ceed 300 feet (91 440 mm) and such central toilet facilities 
are located not more than one story above or below the ten- 
ant space. 



?.6 PiublJc facilities. Customers, patrons and visitors shall 
be provided with public toilet facilities in stmctures and tenant 
spaces intended for public utilization. Public toilet facilities 
shall be located not more than one story above or below the 
space required to be provided with public toilet facilities and 
the path of travel to such facilities shall not exceed a distance of 
500 feet (152 m). 



lalls. In covered mall buildings, the path 
of travel to required toilet facilities shall not exceed a dis- 
tance of 300 feet (9 1 440 mm). Facilities shall be installed in 
each individual store or in a central toilet area located in ac- 
cordance with this section. The maximum travel distance to 
the central toilet facilities in covered mall buildings shall be 
measured from the main entrance of any store or tenant 
space. 



,6.2 Pay ffacilntieSo Where pay facilities are installed, 
such facilities shall be in excess of the required minimum fa- 
cilities. Required facilities shall be free of charge. 

403.7 Sigimage, Required public facilities shall be designated 
by a legible sign for each sex. Signs shall be readily visible and 
located near the entrance to each toilet facility. 



mci 



miB PLummmQ FACiUTiE 



! required. Accessible plumbing facilities and fix- 
tures shall be provided in accordance with the International 
Building Code. 



ilNlSmLLMiOM OF FKIORES 

4(0)5,1 Water supply protectiom. The supply lines and fittings 
for every plumbing fixture shall be installed so as to prevent 
backflow. 

410)5.2 Access for ckamimg. Plumbing fixtures shall be installed 
so as to afford easy access for cleaning both the fixture and the 
area around the fixture. 

405,3 Settiinig. Fixtures shall be set level and in proper align- 
ment with reference to adjacent walls. 



5, Connections be- 
tween the drain and floor o utlet p lumbing fixtiares shall be 
made with a floor flange. The flange shall be attached to the 
drain and anchored to the structure. Connections between the 
drain and wall-hung water closets shall be made with an ap- 
proved extension nipple or horn adapter. The water closet shall 
be bolted to the hanger with corrosion-resistant bolts or screws. 
Joints shall be sealed with an approved elastomeric gasket. 



water closet, urinal, lavatory or bidet shall not be set closer 
than 15 inches (381 mm) from its center to any side wall, U 
partition, vanity or other obstruction, or closer than 30 
inches (762 mm) center- to-center between water closets, n 
urinals or adjacent fixtures. There shall be at least a 2 1 -inch 
(533 mm) clearance in front of the water closet, urinal or bi- U 
det to any wall, fixture or door. Water closet compartments 
shall not be less than 30 inches (762 mm) wide or 60 inches 
( 1 524 mm) deep. There shall be at least a 2 1-inch (533 mm) 
clearance in front of a lavatory to any wall, fixture or door 
(see Figure 405.3.1). 

405.3.2 Public lavatories. In employee and public toilet 
rooms, the required lavatory shall be located in the same 
room as the required water closet. 



26 



2003 JNTERWATIIONAL PLUMBIWG CODE® 



FDjrryi^ES, f/^ooets mB FiKiy^E fbttingi 



•i 



flange-to-fixture connection complying with ASME Al 12.4.3 
or setting compound confonning to FS TT-P- 1536a. 



15IN.- 


^ 1 30.IN.„ 


1 30IN..I 
-CLEAT 




21 IN. CLEARANCE 


21 IN.-, 
CLEARANCE -i — 




WC wc 




wc 


i 




WC 

: 




- 


( TUB 




30 IN. 30 IN. 


\ ^ 

^COMPARTMENT 
—.4-15 IN. 






2t IW. -| 
CLEARANCE 4 — 


UR UR Q Q 


( TUB 




W 


c web 


1IN. 






OQ> 








30" 1 





FDXiyRE CLEAI^MCE 

4®S«41ol Mo©r flfflimges. Floor flanges for water closets or 
similar fixtures shall not be less than 0.125 inch (3.2 mm) 
thick for brass, 0.25 inch (6.4 mm) thick for plastic, and 0.25 
inch (6.4 mm) thick and not less than a 2-inch (51 mm) 
caulking depth for cast-iron or galvanized malleable iron. 
Floor flanges of hard lead shall weigh not less than 1 
pound, 9 ounces (0.7 kg) and shall be composed of lead alloy 
with not less than 7.75-percent antimony by weight. Closet 
screws and bolts shall be of brass. Flanges shall be secured 
to the building structure with corrosion-resistant screws or 
bolts. 

40So4=2 Seciairimg ffloor omitlett IxtoireSo Floor outlet fixtures 
shall be secured to the floor or floor flanges by screws or 
bolts of corrosion-resistant material. 



4®S.4o3 SecuniTflmg wal-Ihmimg 
Wall-hung water closet bowls shall be supported by a con- 
cealed metal carrier that is attached to the building structural 
members so that strain is not transmitted to the closet con- 
nector or any other part of the plumbing system. The carrier 
shall conform to ASME Al 12.6. IM or ASME Al 12.6.2. 



Joints formed where fixtures come 
in contact with walls or floors shall be sealed. 



4®5.6 FlramlbiBig nsn nmemSafl iksffliti cemtoirSo In mental health 
centers, pipes or traps shall not be exposed, and fixtures shall be 
bolted through walls. 

4®S.7 D©§lgm off oveirflowSo Where any fixture is provided with 
an overflow, the waste shall be designed and installed so that 
standing water in the fixture will not rise in the overflow when 
the stopper is closed, and no water will remain in the overflow 

when the fixture is empty. 

4®So7=l C©imBB®(Ct5oi]i of overfflowso The overflow from any 
fixture shall discharge into the drainage system on the inlet 
or fixture side of the trap. 



15 The overflow from a flush tank serving a wa- 
ter closet or urinal shall discharge into the fixture served. 

4([DSoS Slip JotmttcoEmscftLoifflSo Slip joints shall be made with an 
approved elastomeric gasket and shall only be installed on the 
trap outlet, trap inlet and within the trap seal . Fixtures with con- 
cealed slip-joint connections shall be provided with an access 
panel or utility space at least 12 inches (305 iran) in its smallest 
dimension or other approved arrangement so as to provide ac- 
cess to the slip joint connections for inspection and repair. 



Mimiblmg flxtoireso Integral 
fixture fitting mounting surfaces on manufactured plumbing 
fixtures or plumbing fixtures constructed on site, shall meet the 
design requirements of ASME A112.19.2M or ASME 
A112.19.3M. 

SECTDOM 4@® 
AyiOi/aMIC CLOTHES WASHERS 

4(I])(5ol Appirovalo Domestic automatic clothes washers shall 
conform to ASSE 1007. 



a. The water supply to an automatic 
clothes washer shall be protected against backflow by an air 
gap installed integrally within the machine conforming to 
ASSE 1007 or with the installation of a backflow preventer in 
accordance with Section 608. 



.3 Waste coDMsecMoiiii. The waste from an automatic clothes 
washer shall discharge through an air break into a standpipe in 
accordance with Section 802.4 or into a laundry sink. The trap 
and fixture drain for an automatic clothes washer standpipe 
shall be a minimum of 2 inches (5 1 mm) in diameter. The auto- 
matic clothes washer fixture drain shall connect to a branch 
drain or drainage stack a minimum of 3 inches (76 mm) in di- 
ameter. 



1 



SECTiOl 
IMHTyiS 

Bathtubs shall conform to ANSI Z124.1, 
A112.19.1M, ASME A112.19.4M, ASME 
A112.19.9M, CSA B45.2, CSA B45.3 or CSA B45.5. 

4®7.2 Baiilhtolb waste oraltklls. Bathtubs shall have waste out- 
lets a minimum of 1.5 inches (38 mm) in diameter. The waste 
outlet shall be equipped with an approved stopper. 

4®7o3 GEasimg. Windows and doors within a bathtub enclosure 
shall conform to the safety glazing requirements of the Interna- 
tional Building Code. 

4®7o4 BfflillEtolb emclosmre. Doors within a bathtub enclosure 
shall conform to ASME Al 12.19.15. 



SEOTiOM 40§ 
ilDETS 

4®8oll Appravfflllo Bidets shall conform to ASME A 1 12.19.2M, 

ASMEA112.19.9MorCSAB45.1. 

4®§=2 Water commecdnom. The water supply to a bidet shall be 
protected against backflow by an air gap or backflow preventer 
in accordance with Section 608.13.1, 608.13.2, 608.13.3, 
608.13.5, 608.13.6 or 608.13.8. 



20®3 iWTEIRMATIlOMAL F'LUMeBN© CODE® 



FIICTURES, FAUCETS mO FIOTURE FiTTIWGI 



FC 



IT! 



ol Approval. Domestic dishwashing machines shall con- 
form to ASSE 1006. Commercial dishwashing machines shall 
confomi to ASSE 1004 and NSF 3. 



The water supply to a dishwashing 
machine shall be protected against backflow by an air gap or 
backflow preventer in accordance with Section 608. 



The waste connection of a 
dishwashing machine shall comply with Section 802.1.6 or 
802. 1 .7, as applicable. 



,1 Approval. Drinking fountains shall conform to ASME 
A112.19.1M,ASMEA112.19.2MorASMEA112.19.9M,and 
water coolers shall conform to ARI 1010. Drinking fountains 
and water coolers shall conform to NSF 61, Section 9. Where 
water is served in restaurants, drinking fountains shall not be 
required. In other occupancies, where drinking fountains are 
required, bottled water dispensers shall be permitted to be sub- 
stituted for not more than 50 percent of the required drinking 
fountains. 



L2 Froftilljited Io£ait!om„ Drinking fountains shall not be in- 
stalled in public restrooms. 



413.1 Approval. Domestic food waste grinders shall conform 
to ASSE 1008. Commercial food waste grinders shall conform 
to ASSE 1009, Food waste grinders shall not increase the 
drainage fixture unit load on the sanitary drainage system. 

413.2 BomssMc food waste grnmder waste outlets. Domestic 
food waste grinders shall be connected to a drain of not less 
than 1.5 inches (38 mm) in diameter. 

413.3 Commercial food waste grimder waste outlets. Com- 
mercial food waste grinders shall be connected to a drain a min- 
imum of 2 inches (5 1 mm) in diameter. Commercial food waste 
grinders shall be connected and trapped separately from any 
other fixtures or sink compartments. 

413.4 Water sopply required. All food waste grinders shall be 
provided with a supply of cold water. 



QARBAGE GAM WASHERS 

414.1 Water comisectiom. The water supply to a garbage can 
washer shall be protected against backflow by an air gap or a 
backflow preventer in accordance with Section 608.13.1, 
608.13.2, 608.13.3, 608.13.5, 608.13.6 or 608.13.8. 



Garbage can washers shall be 
trapped separately. The receptacle receiving the waste from the 
washer shall have a removable basket or strainer to prevent the 
discharge of large particles into the drainage system. 



EYEWASH STATIOWS 

41L1 Approval. Emergency s howers and eyewash stations 
shall conform to ISEA Z358.1. 

411.2 Waste conmectiom. Waste connections shall not be re- 
quired for emergency showers and eyewash stations. 



412.1 Approval. Floor drains shall conform to ASME 
A 112.6.3, ASME Al 12.3.1 or CSA B79. Trench drains shall 
comply with ASME Al 12.6.3. 

412.2 Floor drain trap and straimer. Floor drain traps shall 
have removable strainers. The strainer shall have a waterway 
area of not less than the area of the tailpiece. The floor drain 
shall be constructed so that the drain is capable of being 
cleaned. Access shall be provided to the drain inlet. 

412.3 Size of floor drains. Floor drains shall have a minimum 
2-inch-diameter (5 1 mm) drain outlet. 

412.4 Peblic laMJidries amd cemtrafi wasMuig facilities. In 
public coin-operated laundries and in the central washing facil- 
ities of multiple- family dwellings, the rooms containing auto- 
matic clothes washers shall be provided with floor drains 
located to readily drain the entire floor area. Such drains shall 
have a minimum outlet of not less than 3 inches (76 mm) in di- 
ameter. 



SECTiOM 415 
LAy WDRY TRAYS 

1, Laundry trays shall conform to ANSI Z124.6, 
ASME A112.19.1M, ASME A112.19.3M, ASME 
A112.19.9M,CSAB45.2orCSAB45.4. 



Each compartment of a laundry tray shall 
be provided with a waste outlet a minimum of 1 .5 inches (38 
mm) in diameter and a strainer or crossbar to restrict the clear 
opening of the waste outlet. 



LAVATORIES 

416.1 Approval. Lavatories shall conform to ANSI Z124.3, 
ASME A112.19.1M, ASME A112.19.2M, ASME 
A112.19.3M, ASME A112.19.4M, ASME A112.19.9M, CSA 
B45.1,CSAB45.2,CSAB45.3 orCSAB45.4. Group wash-up 
equipment shall conform to the requirements of Section 402. 
Every 20 inches (508 mm) of rim space shall be considered as 
one lavatory. 

416.2 Cniltmired marble lavatories. Cultured marble vanity 
tops with an integral lavatory shall conform to ANSI Z 1 24.3 or 
CSAB45.5. 



Lavatories shall have waste 
outlets not less than 1.25 inches (32 mm) in diameter. A 
strainer, pop-up stopper, crossbar or other device shall be pro- 
vided to restrict the clear opening of the waste outlet. 



2003 li^STER^ATlONAL PLUMBING CODE® 



FSOTUlRiiS, FAUCETS AMD FIOTU^E FDTTWQi 



§y§tei]im§. Moveable lavatory sys- 
tems shall comply with ASME A 11 2. 19. 12. 



icimMmi 



41]17<.l Appr©vaE, Prefabricated showers and shower compart- 
ments shall conform to ANSI Z 124.2, ASME Al 12.19.9M or 
CSA B45.5. Shower valves for individual showers shall con- 
form to the requirements of Section 424,3. 

41702 Water snapply riser., Every water supply riser from the 
shower valve to the shower head outlet, whether exposed or not, 
shall be attached to the structure in an approved manner. 

41703 SBndJweir waste ©niilllet Waste outlets serving showers 
I shall be at least 1 72 inches (38 mm) in diameter and, for other 

than waste outlets in bathtubs, shall have removable strainers not 
less than 3 inches (76 mm) in diameter with strainer openings not 
less than 0.25 inch (6.4 mm) in minimum dimension. Where 
each shower space is not provided with an individual waste out- 
let, the waste outlet shall be located and the floor pitched so that 
waste from one shower does not flow over the floor area serving 
another shower. Waste outlets shall be fastened to the waste pipe 
in an approved manner. 

417.4 §!hi®wer coMpaintmeimilSo All shower compartments shall 
have a minimum of 900 square inches (0.58 m^) of interior 
cross-sectional area. Shower compartments shall not be less 
than 30 inches (762 mm) in minimum dimension measured 
from the finished interior dimension of the compartment, ex- 
clusive of fixture valves, showerheads, soap dishes, and safety 

I grab bars or rails. Except as required in Section 404, the mini- 
mum required area and dimension shall be measured from the 
finished interior dimension at a height equal to the top of the 
threshold and at a point tangent to its centerline and shall be 
continued to a height not less than 70 inches (1778 mm) above 

I the shower drain outlet. 



4]17.4ol WaM area.. The wall area above built-in tubs with in- 
stalled shower heads and in shower compartments shall be 
constructed of smooth, noncorrosive and nonabsorbent wa- 
terproof materials to a height not less than 6 feet (1829 mm) 
above the room floor level, and not less than 70 inches ( 1 778 
mm) where measured from the compartment floor at the 
drain. Such walls shall form a water-tight joint with each 
other and with either the tub, receptor or shower floor. 

4J17<,S Slhower ffl®®ir§ ®ir receptors. Floor surfaces shall be con- 
structed of impervious, noncorrosive, nonabsorbent and water- 
proof materials. 

417.5.1 §iLiipp®rt, Floors or receptors under shower com- 
partments shall be laid on, and supported by, a smooth and 
structurally sound base. 

417.5.2 §lh®weir Mmmg, Floors under shower compartments, 
except where prefabricated receptors have been provided, 
shall be lined and made water tight utilizing material com- 
plying with Sections 417.5.2. 1 through 417.5.2.4. Such lin- 
ers shall turn up on all sides at least 2 inches (5 1 mm) above 
the finished threshold level. Liners shall be recessed and fas- 
tened to an approved backing so as not to occupy the space 
required for wall covering, and shall not be nailed or perfo- 



rated at any point less than 1 inch (25 mm) above the fin- 
ished threshold. Liners shall be pitched one-fourth unit ver- 
tical in 12 units horizontal (2-percent slope) and shall be 
sloped toward the fixture drains and be securely fastened to 
the waste outlet at the seepage entrance, making a wa- 
ter-tight joint between the liner and the outlet. 



imui Floor surfaces under shower heads provided 
for rinsing laid directly on the ground are not required to 
comply with this section. 

417,5.2.1 PVC slhieeds. Plasticized polyvinyl chloride 
(FVC) sheets 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 installation instructions. 



417.5.2.2 CBnIorimiated polyetlhykirae (CFE) 
Nonplasticized chlorinated polyethylene sheet shall be a 
minimum 0.040 inch ( 1 .02 mm) thick, and shall meet the re- 
quirements of ASTM D 4068. The liner shall be joined in 
accordance with the manufacturer's installation instruc- 
tions. 

417.5.2.3 SSneelt Head, Sheet lead shall not weigh less than 4 
pounds per square foot (19.5 kg/m^) coated with an asphalt 
paint or other approved coating. The lead sheet shall be insu- 
lated from conducting substances other than the connecting 
drain by 15-pound (6.80 kg) asphalt felt or its equivalent. 
Sheet lead shall be joined by burning. 

417.5.2.4 SIhieell copper. Sheet copper shall conform to 
ASTM B 152 and shall not weigh less than 12 ounces per 
square foot (3.7 kg/m^). The copper sheet shall be insulated 
from conducting substances other than the connecting drain 
by 15 -pound (6.80 kg) asphalt felt or its equivalent. Sheet 
copper shall be joined by brazing or soldering. 

417.6 Glaziinig. Windows and doors within a shower enclosure 
shall conform to the safety glazing requirements of the Interna- 
tional Building Code. 



SECTllOW411§ 
BMKB 

418.1 AppTOvaL Sinks shall conform to ANSI Z124.6, ASME 
A112.19.1M, ASME A112.19.2M, ASME A112.19.3M, 
ASME A112.19.4M, ASME A112.19.9M, CSA B45.1, CSA 
B45.2, CSA B45.3 or CSA B45.4. 

415.2 Sflimlk waste ©nultDefts, Sinks shall be provided with waste 
outlets a minimum of 1.5 inches (38 mm) in diameter. A 
strainer or crossbar shall be provided to restrict the clear open- 
ing of the waste outlet. 

415.3 M®vealb)le snmilk systemms. Moveable sink systems shall 
comply with ASME A 112. 19. 12. 



SEOTD©' 
UBMhU 

415', 1 Appr®vaL Urinals shall conform to AS] 
All2.19.2M, CSA B45.1 or CSA B45.5. Urinals shall con- 
form to the water consumption requirements of Section 604.4. 



2OT3 DMTEeiiMATIIOMAL IPLOMieilMG C©OI^ 



F6XTURES, FAUCETS AND FBXTURE F5TTINGS 



Urinals shall conform to the hydraulic performance require- 
ments of ASME Al 12. 19.6, CSAB45.1 or CSA B45.5. 

419.2 Substitution for water closets. In each bathroom or toi- 
let room, urinals shall not be substituted for more than 67 per- 
cent of the required water closets. 

[B] 419.3 Surrounding material. Wall and floor space to a 
point 2 feet (610 mm) in front of a urinal lip and 4 feet (1219 
mm) above the floor and at least 2 feet (610 mm) to each side of 
the urinal shall be waterproofed with a smooth, readily 
cleanable, nonabsorbent material. 



hi Approval. Water closets shall conform to the water con- 
sumption requirements of Section 604.4 and shall conform to 
ANSI Z124.4, ASME Al 12.19.2M, CSA B45.1, CSA B45.4 
or CSA B45.5. Water closets shall conform to the hydraulic 
performance requirements of ASME Al 1 2. 19.6. Water closet 
tanks shall conform to ANSI Z124.4, ASME Al 12.19.2, 
ASME Al 12.19.9M, CSA B45.1, CSA B45.4 or CSA B45.5. 
Electro-hydraulic water closets shall comply with ASME 
A112.19.13. 

420.2 Water closets for public or employee toilet facIMties. 
Water closet bowls for public or employee toilet facilities shall 
be of the elongated type. 

42®.3 Water closet seats. Water closets shall be equipped with 
seats of smooth, nonabsorbent material. All seats of water clos- 
ets provided for public or employee toilet facilities shall be of 
the hinged open-front type. Integral water closet seats shall be 
of the same material as the fixture. Water closet seats shall be 
sized for the water closet bowl type. 

420.4 Water closet connections. A 4-inch by 3-inch (102 mm 
by 76 mm) closet bend shall be acceptable. Where a 3-inch (76 
mm) bend is utilized on water closets, a 4-inch by 3-inch (102 
mm by 76 mm) flange shall be installed to receive the fixture 
horn. 



WHIlRiPOOL BATHTUBS 

421.1 Approval. Whirlpool bathtubs shall comply with ASME 
A112.19.7M or with CSA B45.5 and CSA B45 (Supplement 
1). 

421.2 Installation. Whirlpool bathtubs shall be installed and 
tested in accordance with the manufacturer's installation in- 
structions. The pump shall be located above the weir of the fix- 
ture trap. Access shall be provided to the pump. 

421.3 Drain. The pump drain and circulation piping shall be 
sloped to drain the water in the volute and the circulation piping 
when the whirlpool bathtub is empty. 

421.4 Suction fittings. Suction fittings for whirlpool bathtubs 
shall comply with ASME Al 12. 19.8M. 

421.5 Whirlpool enclosure. Doors within a whirlpool enclo- 
sure shall conform to ASME A 112. 19. 15. 



CABE FIXTURES AMD EQUIPMENT 

422.1 Scope. This section shall govern those aspects of health 
care plumbing systems that differ from plumbing systems in 
other structures. Health care plumbing systems shall conform 
to the requirements of this section in addition to the other re- 
quirements of this code. The provisions of this section shall ap- 
ply to the special devices and equipment installed and 
maintained in the following occupancies: nursing homes, 
homes for the aged, orphanages, infirmaries, first aid stations, 
psychiatric facilities, clinics, professional offices of dentists 
and doctors, mortuaries, educational facilities, surgery, den- 
tistry, research and testing laboratories, establishments manu- 
facturing pharmaceutical drugs and medicines, and other 
structures with similar apparatus and equipment classified as 
plumbing. 



, /^ppauviail. All special plumbing fixtures, equipment, de- 
and apparatus shall be of an approved type. 



vices 



D. All devices, appurtenances, appliances and 
apparatus intended to serve some special function, such as ster- 
ilization, distillation, processing, cooling, or storage of ice or 
foods, and that connect to either the water supply or drainage 
system, shall be provided with protection against backflow, 
flooding, fouling, contamination of the water supply system 
and stoppage of the drain. 



i. Fixtures designed for therapy, special cleans- 
ing or disposal of waste materials, combinations of such pur- 
poses, or any other special purpose, shall be of smooth, 
impervious, corrosion-resistant materials and, where subjected 
to temperatures in excess of 1 80°F (82°C), shall be capable of 
withstanding, without damage, higher temperatures. 

422.5 Access. Access shall be provided to concealed piping in 
connection with special fixtures where such piping contains 
steam traps, valves, relief valves, check valves, vacuum break- 
ers or other similar items that require periodic inspection, ser- 
vicing, maintenance or repair. Access shall be provided to 
concealed piping that requires periodic inspection, mainte- 
nance or repair. 



i, A clinical sink shall have an integral trap 
in which the upper portion of a visible trap seal provides a water 
surface. The fixture shall be designed so as to permit complete 
removal of the contents by siphonic or blowout action and to re- 
seal the trap. A flushing rim shall provide water to cleanse the 
interior surface. The fixture shall have the flushing and cleans- 
ing characteristics of a water closet. 

422.7 Prohibited msage of clinical sinks and service sinks. A 
clinical sink serving a soiled utihty room shall not be consid- 
ered as a substitute for, or be utilized as, a service sink. A ser- 
vice sink shall not be utilized for the disposal of urine, fecal 
matter or other human waste. 



In soiled utility room. M'achines for 
manufacturing ice, or any device for the handling or storage of 
ice, shall not be located in a soiled utility room. 

422.9 Sterilizer equipment requirements. The approval and 
installation of all sterilizers shall conform to the requirements 
of the International Mechanical Code. 



30 



2003 SNTERNATBONAL PLUMBING CODE® 



FBXTUIRES, FAUCETS AMD FIXTURE RTTJNGS 



4223A SHeriker pSpSmg. Access for the purposes of in- 
spection and maintenance shall be provided to all sterilizer 
piping and devices necessary for the operation of sterilizers. 

422o9<,2 Steam sispplyo Steam supplies to sterilizers, includ- 
ing those connected by pipes from overhead mains or 
branches, shall be drained to prevent any moisture from 
reaching the sterilizer. The condensate drainage from the 
steam supply shall be discharged by gravity. 

422.9.3 Siteam comdeinisate retannio Steam condensate re- 
turns from sterilizers shall be a gravity return system. 

422.9.4 Comdleinisers. Pressure sterilizers shall be equipped 
with a means of condensing and cooling the exhaust steam 
vapors. Nonpressure sterilizers shall be equipped with a de- 
vice that will automatically control the vapor, confining the 
vapors within the vessel. 



Control valves, vacuum outlets and 
devices protruding from a wall of an operating, emergency, re- 
covery, examining or delivery room, or in a corridor or other lo- 
cation where patients are transported on a wheeled stretcher, 
shall be located at an elevation that prevents bumping the pa- 
tient or stretcher against the device. 



SPECIALTY PLUMBDNG 

423.1 Water coemectECJinis. Baptisteries, ornamental and lily 
pools, aquariums, ornamental fountain basins, swimming 
pools, and similar constructions, where provided with water 
supplies, shall be protected against backflow in accordance 
with Section 608. 



L Specialties requiring water and waste con- 
nections shall be submitted for approval. 



¥h\ 



FITTO 



c=> 



PCETS AND QTUEB FKTUIRC 

424,1 Approval, Faucets and fixture fittings shall conform to 
ASME Al 12.18.1 or CSA B125. Faucets and fixture fittings 
that supply drinking water for human ingestion shall conform 
to the requirements of NSF 61, Section 9. Flexible water con- 
nectors exposed to continuous pressure shall conform to the re- 
quirements of Section 605.6. 

424.1.1 FaiDcelts amdl sepply itttninigs. Faucets and supply 
fittings shall conform to the water consumption require- 
ments of Section 604.4. 

424.1.2 Waste iltllnmgs. Waste fittings shall conform to one 
of the standards listed in Tables 702.1 and 702.4 for 
above-ground drainage and vent pipe and fittings, or the 
waste fittings shall be constructed of tubular stainless steel 
with a minimum wall thickness of 0.0 1 2 inch (0.30 mm), tu- 
bular copper alloy having a minimum wall thickness of 
0.027 inch (0.69 mm) or tubular plastic complying with 
ASTM F 409. 



3. Hand-held showers shall conform to 
ASSE 1014 or CSA B 125. 

424,3 Slhower valves. Shower and tub-shower combination 
valves shall be balanced pressure, thermostatic or combination 



5, Faucets and fixture fittings 
with hose-connected outlets shall conform to ASME 

A112.18.3M. 

424,5 Temperatore-actaated, iow redtuictnoin) valves for iini= 
dnvMoal ixitiuire itltSirags, Temperature-actuated, flow reduc- 
tion devices, where installed for individual fixture fittings, 
shall conform to ASSE 1062. Such valves shall not be used 
alone as a substitute for the balanced pressure, thermostatic or 
combination shower valves required in Section 424.3. 

424.(5 TramslFer vaDves, Deck-mounted bath/shower transfer 
valves containing an integral atmospheric vacuum breaker 
shall conform to the requirements of ASME A112.18.7. 



miEE CL©SETS M 



UBMkU 



iS reqMEred. Each water closet, urinal, 
clinical sink and any plumbing fixture that depends on trap 
siphonage to discharge the fixture contents to the drainage sys- 
tem shall be provided with a flushometer valve, flushometer 
tank or a flush tank designed and installed to supply water in 
quantity and rate of flow to flush the contents of the fixture, 
cleanse the fixture and refill the fixture trap. 

425.1,1 Separate for eaclh Sxtdire. A flushing device shall 
not serve more than one fixture. 



balanced-pressure/thermostatic valves that conform to the re- 
quirements of ASSE 1016 or CSA B125. Multiple (gang) 
showers supplied with a single tempered water supply pipe 
shall have the water supply for such showers controlled by a 
master thermostatic mixing valve complying with ASSE 1017. L 
Shower and tub-shower combination valves and master ther- 
mostatic mixing valves required by this section shall be 
equipped with a means to limit the maximum setting of the 
valve to 120°F (49°C), which shall be field adjusted in accor- 
dance with the manufacturer's instructions. 



3, Flushometer valves and 
tanks shall comply with ASSE 1037. Vacuum breakers on 
flushometer valves shall conform to the performance require- 
ments of ASSE 1001 or CAN/CSA-B64.1.1. Access shall be 
provided to vacuum breakers. Flushometer valves shall be of 
the water-conservation type and shall not be utilized where the 
water pressure is lower than the minimum required for normal 
operation. When operated, the valve shall automatically com- 
plete the cycle of operation, opening fully and closing posi- 
tively under the water supply pressure. Each flushometer valve 
shall be provided with a means for regulating the flow through 
the valve. The trap seal to the fixture shall be automatically re- 
filled after each valve flushing cycle. 

425,3 Flmslh tomilks. Flush tanks equipped for manual flushing 
shall be controlled by a device designed to refill the tank after 
each discharge and to shut off completely the water flow to the 
tank when the tank is filled to operational capacity. The trap 
seal to the fixture shall be automatically refilled after each 
flushing. The water supply to flush tanks equipped for auto- 
matic flushing shall be controlled with a timing device or sen- 
sor control devices. 



2003 IWTEIRWATIONAL PLUMBING CODE® 



FBOTy^ii, F^ySETS AMD BOTURE FITTi^QS 



vffilveso All flusti tanks shall be equipped with 
aa aitisiphom fill valve conforming to ASSE 1(K)2 or CSA 
8125. The ill valve backflow preventer shall be located at 
least 1 inch (25 mm) above the fall opening of the overflow 

pipe. 

42io3o2 OwG^ows isn Mmh tenlss. Flush tanks shall be pro- 
vided with overflows discharging to the water closet or uri- 
nal connected thereto and shall be sized to prevent flooding 
the tank at the maximum rate at which the tanks are supplied 
with water according to the manufacturer's design condi- 
tions. The opening of the overflow pipe shall be located 
above the flood level rim of the water closet or urinal or 
above a secondary overflow in the flush tank. 

4}2So3o3 Slssefi seppsE, Sheet copper utilized for flush tank 
linings shall conform to ASTM B 152 and shall not weigh 
less than 10 ounces per square foot (0.03 kg/m^). 

4}2So3.4 Access insqiMredo All parts in a flush tank shall be 
accessible for repair and replacement. 

^2BA FliisSn plgses m&d SMSmgs, Flush pipes and fittings shall 
be of nonferrous material and shall conform to ASME 
Al 12.19.5 or CSA B125. 



SECTION 42® 
F0OD kMB BEVERAGE DlSFE^Sif^Q 
iQUIP^EMT 

Ajppimvalo Manual food and beverage dispensing equip- 
ment shall conform to the requirements of NSF 18. 



SiCTiOM 42? 
FLOOR Sil^KS 

<!27.]1 Apjprovffilo Sanitary floor sinks shall conform to the re- 
quirements of ASME Al 12.6.7. 



1003 l^iTERMATIO^fiAL PLUMBINa CODE® 






OEWERAL 

SdDl.l ScopSo The provisions of this chapter shall govern the 
materials, design and installation of water heaters and the re- 
lated safety devices and appurtenances. 

5® 1.2 Water Iheater as space toeatero Where a combination po- 
table water heating and space heating system requires water for 
space heating at temperatures higher than 140°F (60°C), a mas- 
ter thermostatic mixing valve complying with ASSE 1017 shall 
be provided to limit the water supplied to the potable hot water 
D distribution system to a temperature of 140°F (60°C) or less. 
The potability of the water shall be maintained throughout the 
system. 

5(01.3 Dranm valves. Drain valves for emptying shall be in- 
stalled at the bottom of each tank- type water heater and hot wa- 
ter storage tank. Drain valves shall conform to ASSE 1005. 



Water heaters and storage tanks shall be lo- 
cated and connected so as to provide access for observation, 
maintenance, servicing and replacement. 

SiDl.S Water Iheater latoelmg. All water heaters shall be 
third-party certified. 



r§. The temperature of water from tankless water heaters 
shall be a maximum of 140°F (60°C) when intended for domes- 
tic uses. This provision shall not supersede the requirement for 
protective shower valves in accordance with Section 424.3. 

SdDl.? Pressere marknmg of storage tomlks. Storage tanks and 
water heaters installed for domestic hot water shall have the 
maximum allowable working pressure clearly and indelibly 
stamped in the metal or marked on a plate welded thereto or oth- 
erwise permanently attached. Such markings shall be in an ac- 
cessible position outside of the tank so as to make inspection or 
reinspection readily possible. 

5(Dil.§ Temperatare comltrols. All hot water supply systems 
shall be equipped with automatic temperature controls capable 
of adjustments from the lowest to the highest acceptable tem- 
perature settings for the intended temperature operating range. 



IS esed as a plememm. Water heaters using solid, liq- 
uid or gas fuel shall not be installed in a room containing 
air-handling machinery when such room is used as a plenum. 

S02.3 Water Iheallers mstalled m attics. Attics containing a 
water heater shall be provided with an opening and unob- 
structed passageway large enough to allow removal of the wa- 
ter heater. The passageway shall not be less than 30 inches (762 
mm) high and 22 inches (559 mm) wide and not more than 20 
feet (6096 mm) in length when measured along the centerline 
of the passageway from the opening to the water heater. The 
passageway shall have continuous solid flooring not less than 
24 inches (610 mm) wide. A level service space at least 30 
inches (762 mm) deep and 30 inches (762 mm) wide shall be 
present at the front or service side of the water heater. The clear 
access opening dimensions shall be a minimum of 20 inches by 
30 inches (508 mm by 762 mm) where such dimensions are 
large enough to allow removal of the water heater. 

5©2.4 Sejsmk sopports. Where earthquake loads are applica- 
ble in accordance with the International Building Code, water 
heater supports shall be designed and installed for the seismic 
forces in accordance with the International Building Code. 



O 



CONNECTDOWS 

503. 1 CoM water \m& valve. The cold water branch line from 
the main water supply line to each hot water storage tank or wa- 
ter heater shall be provided with a valve, located near the equip- 
ment and serving only the hot water storage tank or water hea- 
ter. The valve shall not interfere or cause a disruption of the 
cold water supply to the remainder of the cold water system. 
The valve shall be provided with access on the same floor level 
as the water heater served. 



D. The method of connecting a circulat- 
ing water heater to the tank shall provide proper circulation of 
water through the water heater. The pipe or tubes required for 
the installation of appliances that will draw from the water 
heater or storage tank shall comply with the provisions of this 
code for material and installation. 



iWSMLLMDOW 

502.1 Gemeral. Water heaters shall be installed in accordance 
with the manufacturer's installation instructions. Oil-fired wa- 
ter heaters shall conform to the requirements of this code and 
the International Mechanical Code. Electric water heaters 
shall conform to the requirements of this code and provisions of 
the ICC Electrical Code. Gas-fired water heaters shall conform 
to the requirements of the International Fuel Gas Code. 



SAFETY 



504.1 AmtlsiplnoM devices. An approved means, such as 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, shall be provided to prevent siphoning of any 
storage water heater or tank. 

504.2 VacMimm relief valve. Bottom fed water heaters and bot- 
tom fed tanks connected to water heaters shall have a vacuum 



1=0 



2003 INTEIRBSJATIOWAL PLUMBING CODE® 



33 



WATEIR MEMERS 



relief valve installed. The vacuum relief valve shall comply 

with ANSI Z2 1.22. 

§Mo3 SHiniMowEBo A means for disconnecting an electric hot 
M^ater supply system from its energy supply shall be provided in 
accordance with the ICC Electrical Code. A separate valve 
shall be provided to shut off the energy fuel supply to all other 
types of hot water supply systems. 



5. All storage water heaters operating above 
atmospheric pressure shall be provided with an approved, 
self-closing (levered) pressure relief valve and temperature re- 
lief valve or combination thereof. The relief valve shall con- 
form to ANSI Z21.22, The relief valve shall not be used as a 
means of controlling thermal expansion. 



5®4.4.1 Isastollfflftionn. Such valves shall be installed in the 
shell of the water heater tank. Temperature relief valves 
shall be so located in the tank as to be actuated by the water 
in the top 6 inches (152 mm) of the tank served. For installa- 
tions with separate storage tanks, the valves shall be in- 
stalled 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 served. 



Temperature and pressure relief 
valves, or combinations thereof, and energy cutoff devices 
shall bear the label of an approved agency and shall have a tem- 
perature setting of not more than 210°F (99°C) and a pressure 
setting not exceeding the tank or water heater manufacturer's 
rated working pressure or 150 psi (1035 kPa), whichever is 
less. The relieving capacity of each pressure relief valve and 
each temperature relief valve shall equal or exceed the heat in- 
put to the water heater or storage tank. 



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

S®4,6.1 Discharge, The relief valve shall discharge full size 
to a safe place of disposal such as the floor, outside the build- 
ing, or an indirect waste receptor. The discharge pipe shall 
not have any trapped sections and shall have a visible air gap 
or air gap fitting located in the same room as the water 
heater. The outlet end of the discharge pipe shall not be 
threaded and such discharge pipe shall not have a valve or 
tee installed. Relief valve piping shall be piped independent 
of other equipment drains or relief valve discharge piping to 
the disposal point. Such pipe shall be installed in a manner 
that does not cause personal injury to occupants in the im- 
mediate area or structural damage to the building. 

S04.6.2 Materials. Relief valve discharge piping shall be of 
those materials listed in Section 605.4 or shall be tested, rated 
and approved for such use in accordance with ASME 
Al 12.4. 1 . Piping from safety pan drains shall be of those mate- 
rials listed in Table 605.4. 

S®4.7 Reqailred pam. Where water heaters or hot water storage 
tanks are installed in locations where leakage of the tanks or 
connections will cause damage, the tank or water heater shall 
be installed in a galvanized steel pan having a minimum thick- 
ness of 24 gage, or other pans approved for such use. 



BM.7A Pam sue amdl dranm. The pan shall be not less than 
1 .5 inches (38 mm) deep and shall be of sufficient size and 
shape to receive all dripping or condensate from the tank or 
water heater. The pan shall be drained by an indirect waste 
pipe having a minimum diameter of % inch (19 mm). 

5(0)41.7.2 IPam dranm tennrnMailSomo 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 build- 
ing and terminate not less than 6 inches (152 mm) and not 
more than 24 inches (610 mm) above the adjacent ground 
surface. 



|E| SdlS.l Uiniffliredl vessel 5m§ii]iIattS©mc Unfired hot water storage 
tanks shall be insulated so that heat loss is limited to a maxi- 
mum of 15 British thermal units per hour (Btu/h) per square 
foot (47 W/m^) of external tank surface area. For purposes of 
determining this heat loss, the design ambient temperature 
shall not be higher than 65°F ( 1 8°C). 



mm iiwTERM/«\ini©wAL plumbum® com 



m 



CUhPTEB ® 

PPLY AND OBSTRDiUT 



SECTION ®01 
OEWERAL 

6©L1 Scope, This chapter shall govern the materials, design 
and installation of water supply systems, both hot and cold, for 
utilization in connection with human occupancy and habitation 
and shall govern the installation of individual water supply sys- 
tems. 



Solar energy systems used for 
heating potable water or using an independent medium for heat- 
ing potable water shall comply with the applicable requirements 
of this code. The use of solar energy shall not compromise the re- 
quirements for cross cotinection or protection of the potable wa- 
ter supply system required by this code. 



601.3 Exnsttimg pipmg msedl for grouedimg. Existing metallic 
water service piping used for electrical grounding shall not be 
replaced with nonmetallic pipe or tubing until other approved 
means of grounding is provided. 



it§o The potable water distribution system shall be 
tested in accordance with Section 312.5. 



WATER REQUIRED 

6©2.1 GeraeraL Every structure equipped with plumbing fix- 
tures and utilized for human occupancy or habitation shall be 
provided with a potable supply of water in the amounts and at 
the pressures specified in this chapter. 



Only potable water shall be 
supplied to plumbing fixtures that provide water for drinking, 
bathing or culinary purposes, or for the processing of food, 
medical or pharmaceutical products. Unless otherwise pro- 
vided in this code, potable water shall be supplied to all plumb- 
ing fixtures. 



, Where a potable pubhc water 
supply is not available, individual sources of potable water sup- 
ply shall be utilized. 

602.3ol SoiarceSo Dependent on geological and soil condi- 
tions and the amount of rainfall, individual water supplies 
are of the following types: drilled well, driven well, dug 
well, bored well, spring, stream or cistern. Surface bodies of 
water and land cistems shall not be sources of individual 
water supply unless properly treated by approved means to 
prevent contamination. 



.The combined capacity of the 
source and storage in an individual water supply system 
shall supply the fixtures with water at rates and pressures as 
required by this chapter. 



Mty. Water from an individual water sup- 
ply shall be approved as potable by the authority having ju- 
risdiction prior to connection to the plumbing system. 



. After construction or major 
repair, the individual water supply system shall be purged of 
deleterious matter and disinfected in accordance with Sec- 
tion 610. 



js. Pumps shall be rated for the transport of po- 
table water. Pumps in an individual water supply system shall 
be constructed and installed so as to prevent contamination 
from entering a potable water supply through the pump units. 
Pumps shall be sealed to the well casing or covered witfi a wa- 
ter-tight seal. Pumps shall be designed to maintain a prime 
and installed such that ready access is provided to the pump 
parts of the entire assembly for repairs. 



emclosiuire. The pump room or enclosure 
around a well pump shall be drained and protected from 
freezing by heating or other approved means. Where 
pumps are installed in basements, such pumps shall be 
mounted on a block or shelf not less than 18 inches (457 
mm) above the basement floor. Well pits shall be prohib- 
ited. 



WMER SERVICE 

6(0)3.1 Size of water service pipe. The water service pipe 
shall be sized to supply water to the structure in the quanti- 
ties and at the pressures required in this code. The minimum 
diameter of water service pipe shall be V4 inch (19.1 mm). 

6(0)3.2 Separation of water service and boilding sewer. 
Water service pipe and the building sewer shall be separated 
by 5 feet (1524 mm) of undisturbed or compacted earth. 



1 . The required separation distance shall not apply where 
the bottom of the water service pipe within 5 feet 
(1524 mm) of the sewer is a minimum of 12 inches 
(305 mm) above the top of the highest point of the 
sewer and the pipe materials conform to Section 
703.1. 

2. Water service pipe is permitted to be located in the 
same trench with a building sewer, provided such 
sewer is constructed of materials listed in Table 702.2. 

3. The required separation distance shall not apply where 
a water service pipe crosses a sewer pipe provided the 
water service pipe is sleeved to at least 5 feet (1524 
mm) horizontally from the sewer pipe centerline, on 
both sides of such crossing with pipe materials listed 
in Table 605.3, Table 702.2 or Table 702.3. 



service near sources of poMution. Potable 
water service pipes shall not be located in, under or above 
cesspools, septic tanks, septic tank drainage fields or seep- 
age pits (see Section 605. 1 for soil and groundwater condi- 
tions). 



2003 WTERNATIOWAL PLUMBING CODE® 



35 



WMEO SUPPLY mn DiSTRtBUTlOW 



iCTD 



miEB 



IT 



TO 



lYBn 



1 GemeraL The design of the water distribution system 
shall conform to accepted engineering practice. Methods uti- 
lized to determine pipe sizes shall be approved. 

(504.2 System miiercoinimecitn©rao At the points of interconnec- 
tion between fee hot and cold water supply piping systems and 
the individual fixtures, appliances or devices, provisions shall 
be made to prevent flow between such piping systems. 

604.3 Water distrnlbiiniti©! system desigm criternao The water 
distribution system shall be designed, and pipe sizes shall be se- 
lected such that under conditions of peak demand, the capacities 
at the fixture supply pipe outlets shall not be less than shown in 
Table 604 .3 . The minimum flow rate and flow pressure provided 
to fixtures and apphances not listed in Table 604. 3 shall be in ac- 
cordance with the manufacturer's installation instructions. 



I DlSTRlByUON SYSTEM DESBOM QOlTERli^ 
REQUIRED GAPAC8TY M FSXTURE SUPPLY PIPE OUTLETI 



F8OTURE SUPPLY OUTLET 
SERVING 


— 

FLOW R^TE*" 
(gpm) 


FLOW 

PRESSURE 

(psi) 


Bathtub 


4 


8 


Bidet 


2 


4 


Combination fixture 


4 


8 


Dishwasher, residential 


2.75 


8 


Drinking fountain 


0.75 


8 


Laundry tray 


4 


8 


Lavatory 


2 


8 


Shower 


3 


8 


Shower, temperature controlled 


3 


20 


Sillcock, hose bibb 


5 


8 


Sink, residential 


2.5 


8 


Sink, service 


3 


8 


Urinal, valve 


15 


15 


Water closet, blow out, 
flushometer valve 


35 


25 


Water closet, flushometer tank 


1.6 


15 


Water closet, siphonic, 
flushometer valve 


25 


15 


Water closet, tank, close 
coupled 


3 


8 


Water closet, tank, one piece 


6 


20 



For SI: 1 pound per square inch = 6.895 kPa, 1 gallon per minute 
= 3.785 L/m. 

a. For additional requirements for flow rates and quantities, see Section 604.4. 



6(0)4.4 MasHmuainni low aed water coinisiuimptfl®E, The maxi- 
mum water consumption flow rates and quantities for all 
plumbing fixtures and fixture fittings shall be in accordance 
with Table 604.4. 



1. Blowout design water closets [3.5 gallons (13 L) per 
flushing cycle] . 

2. Vegetable sprays. 

3. Clinical sinks [4.5 gallons (17 L) per flushing cycle]. 

4. Service sinks. 

5. Emergency showers. 

TABLE 604.4 

MAICIMUM FLOW RMES AND COMSUMPTION FOR 

PLUMBtWG FIXTOBES AND F5XTURE FtTTIS^GS 



PLUMBJNG FIXTURE 
OR RCTURE F1TT8MG 


MAXIMUM FLOW RATE 
OR QUAt^TITY" 


Lavatory, private 


2.2 gpm at 60 psi 


Lavatory, public, (metering) 


0.25 gallon per metering cycle 


Lavatory, public 
(other than metering) 


0.5 gpm at 60 psi 


Shower head' 


2.5 gpm at 80 psi 


Sink faucet 


2.2 gpm at 60 psi 


Urinal 


1 .0 gallon per flushing cycle 


Water closet 


1 .6 gallons per flushing cycle 



For SI: 1 gallon = 3.785 L, 1 gallon per minute = 3.785 LAn, 1 pound per 
square inch = 6.895 kPa. 

a. A hand-held shower spray is a shower head. 

b. Consumption tolerances shall be determined from referenced standards. 



Size of flstmre supply. The minimum size of a fixture 
supply pipe shall be as shown in Table 604.5. The fixture sup- 
ply pipe shall not terminate more than 30 inches (762 mm) from 
the point of connection to the fixture. A reduced-size flexible 
water connector installed between the supply pipe and the fix- 
ture shall be of an approved type. The supply pipe shall extend 
to the floor or wall adjacent to the fixture . The minimum size of 
individual distribution lines utilized in parallel water distribu- 
tion systems shall be as shown in Table 604.5. 



Where street water main 
pressures fluctuate, the building water distribution system shall 
he designed for the minimum pressure available. 



.7 Eimadleqiiiiate water pressure. Wherever water pressure 
firom the street main or other source of supply is insufficient to 
provide flow pressures at fixture outlets as required imder Ta- 
ble 604.3, a water pressure booster system conforming to Sec- 
tion 606.5 shall be installed on the building water supply 
system. 



J.8 Water-pressiare reduidmg valve or regulator. Where 
water pressure within a building exceeds 80 psi (552 kPa) 
static, an approved water-pressure reducing valve conforming 
to ASSE 1 003 with strainer shall be installed to reduce the pres- 
sure in the building water distribution piping to 80 psi (552 
kPa) static or less. 



m Service lines to sill cocks and outside hydrants, 
and main supply risers where pressure from the mains is re- 
duced to 80 psi (552 kPa) or less at individual fixtures. 

6(1I)4.§,1 Valve design. The pressure-reducing valve shall be 
designed to remain open to permit uninterrupted water flow 
in case of valve failure. 



2003 INTERNATIONAL PLUMBiNG CODE® 



WATER SUPPLY AMD D1STIR5SUT10N 



9UW] SIZES OF FSXTURE WATER SUPPLY PtPES 



FIXTURE 


MitMIMUM PIPE SBZE 
(meh) 


Bathtubs* (60 "x 32" and 
smaller 


'/: 


Bathtubs' (larger than 60" x 
32") 


V, 


Bidet 


v« 


Combination sink and tray 


v. 


Dishwasher, domestic* 


'/, 


Drinking fountain 


X 


Hose bibbs 


'/2 


Kitchen sink' 


'/, 


Laundry, 1, 2 or 3 
compartments' 


V. 


Lavatory 


Vs 


Shower, single head' 


'/2 


Sinks, flushing rim 


% 


Sinks, service 


'/, 


Urinal, flush tank 


% 


Urinal, flush valve 


V. 


Wall hydrant 


V. 


Water closet, flush tank 


\ 


Water closet, flush valve 


1 


Water closet, flushometer tank 


v« 


Water closet, one piece' 


V2 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square inch 
= 6.895 kPa. 

a . Where the developed length of the distribution line is 60 feet or less, and the 
available pressure at the meter is a minimum of 35 psi, the minimum size of 
an individual distribution line supplied from a manifold and installed as 
part of a parallel water distribution system shall be one nominal tube size 
smaller than the sizes indicated. 



removalo All water-pressure reducing 
valves, regulators and strainers shall be so constructed and in- 
stalled as to permit repair or removal of parts v^ithout break- 
ing a pipeline or removing the valve and strainer from the 
pipeline. 



ammero The flow velocity of the water distribu- 
tion system shall be controlled to reduce the possibility of water 
hammer. A water-hammer arrestor shall be installed where 
quick-closing valves are utilized. Water-hammer arrestors 
shall be installed in accordance with the manufacturer's speci- 
fications. Water-hammer arrestors shall conform to ASSE 
1010. 

6®4.1(D Fairallel water dnsltrnlbiiiiiliom system maiininfoMs. Hot 
water and cold water manifolds installed with parallel con- 
nected individual distribution lines to each fixture or fixture fit- 
ting shall be designed in accordance with Sections 604.10.1 
through 604.10.3. 



snznmgo Hot water and cold water mani- 
folds shall be sized in accordance with Table 604.10. 1 . The 
total gallons per minute is the demand of all outlets sup- 
plied. 



TABLE SO^.1 0.1 
MANIFOLD SBZINO 




W0M8NAL SIZE 

INTERNAL DIAMETER 

(iini©8n©s) 


MAXIMUM m 


■MAND (gpm) 


Vetocifty aS ^ 
f©©tt per 
second! 


¥elloe!«y au S 
feeft per 
sscomd 


% 


2 


5 


'U 


6 


11 


1 


10 


20 


IV. 


15 


31 


IV, 


22 


44 



For SI: 1 inch = 25.4 mm, 1 
second - 0.305 m/s. 



Ion per minute = 3.785 L/m, 1 foot per 



11,2 Valves. Individual fixture shutoff valves installed 
at the manifold shall be identified as to the fixture being 
supplied. 

6©4,1(D)3 Access. Access shall be provided to manifolds. 

60)4.11 ImdnvWuaal pressMire balamdiiig nra-lme vallves for nm- 
dnvidtmal flxtMre ittnimgs. Where individual pressure balancing 
in-line valves for individual fixture fittings are installed, such 
valves shall comply with ASSE 1066. Such valves shall be in- 
stalled in an accessible location and shall not be utilized alone 
as a substitute for the balanced pressure, thermostatic or com- 
bination shower valves required in Section 424.3. 



MIMERBALS, J)©DMTS Mm COMWI 

6(DS.l Sdjnl amdl groMinidl water. The installation of a water ser- 
vice or water distribution pipe shall be prohibited in soil and 
ground water contaminated with solvents, fuels, organic com- 
pounds or other detrimental materials causing permeation, 
corrosion, degradation or structural failure of the piping ma- 
terial. Where detrimental conditions are suspected, a chemi- 
cal analysis of the soil and ground water conditions shall be 
required to ascertain the acceptability of the water service or 
water distribution piping material for the specific installation. 
Where detrimental conditions exist, approved alternative ma- 
terials or routing shall be required. 



605.2 Lead comtemt off water supply pipe amd flttiinigs. Pipe 
and pipe fittings, including valves and faucets, utilized in the 
water supply system shall have a maximum of 8-percent lead 
content. 



■ servnce pipe. Water service pipe shall conform to 
NSF 6 1 and shall conform to one of the standards listed in Table 
605.3. All water service pipe or tubing, installed underground 
and outside of the structure, shall have a minimum working 
pressure rating of 160 psi (1100 kPa) at 73.4°F (23 °C). Where 



<1- 



2003 JWTERMATIONAL PLUMBSWG CODE® 



37 



WMER SUPPLY AND DiSTRlBUTSOW 



the water pressure exceeds 160 psi (1100 kPa), piping material 
shall have a minimum rated working pressure equal to the high- 
est available pressure. Plastic water service piping shall termi- 
nate within 5 feet (1524 mm) inside of the point where the pipe 
penetrates an exterior wall or slab on grade. All ductile iron wa- 



ter pipe shall be cement mortar lined in accordance with 
AWWAC104. 



check-valve-type backflow preventero 
Where a dual check- valve backflow preventer is installed on 
the water supply system, it shall comply with ASSE 1024. 



; S05.3 
WICE PIPE 



MATERBAL 


STASMDARD 


Acrylonitrile butadiene styrene (ABS) plastic pipe 


ASTMD 1527; ASTMD 2282 


Asbestos-cement pipe 


ASTM C 296 


Brass pipe 


ASTM B 43 


Chlorinated polyvinyl chloride (CPVC) plastic pipe 


ASTM D 2846; ASTM F 441; ASTM F 442; CSA B137.6 


Copper or copper-alloy pipe 


ASTM B 42; ASTM B 302 


Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) 


ASTM B 75; ASTM B 88; ASTM B 251; ASTM B 447 


Cross-linked polyethylene (PEX) plastic tubing 


ASTM F 876; ASTM F 877; CS A-B 137.5 


Cross-linked polyethylene/aluminum/cross-linked 
polyethylene (PEX-AL-PEX) pipe 


ASTMF 128I;CAN/CSAB137.10M 


Ductile iron water pipe 


AWWA C151; AWWA C115 


Galvanized steel pipe 


ASTM A 53 


Polybutylene (PB) plastic pipe and tubing 


ASTM D 2662; ASTM D 2666; ASTM D 3309; CAN3-B137.8M 


Polyethylene (PE) plastic pipe 


ASTMD 2239; CSA-B 137.1 


Polyethylene (PE) plastic tubing 


ASTM D 2737; CSA B 137.1 


Polyethylene/aluminum/polethylene (PE-AL-PE) pipe 


ASTM F 1282 CAN/CSA-B 137.9 


Polyvinyl chloride (PVC) plastic pipe 


ASTM D 1785; ASTM D 2241; ASTM D 2672; CSA-B137.3 


Stainless steel pipe (Type 304/304L) 


ASTM A 312; ASTM A 778 


Stainless steel pipe (Type 316/316L) 


ASTM A 3 12; ASTM A 778 


TABLE S05.4 
WATER D8STRIBUTI0M PIPE 


MATERIAL 


STANDARD 


Brass pipe 


ASTM B 43 


Chlorinated polyvinyl chloride (CPVC) plastic pipe and tubing 


ASTM D 2846; ASTM F 441; ASTM F 442; CSA B 137.6 


Copper or copper-alloy pipe 


ASTM B 42; ASTM B 302 


Copper or copper-alloy tubing (Type K, WK, L, WL, M or WM) 


ASTM B 75; ASTM B 88; ASTM B 251 ; ASTM B 447 


Cross-linked polyethylene (PEX) plastic tubing 


ASTMF 877; CSA-B 137.5 


Cross-linked polyethylene/aluminum/cross-linked polyethylene 
(PEX-AL-PEX) pipe 


ASTMF 1281; CAN/CSA-B 1 37. lOM 


Galvanized steel pipe 


ASTM A 53 


Polybutylene (PB) plastic pipe and tubing 


ASTM D 3309; CAN3-B137.8M 


Polyethylene/Aluminum/Polyethylene (PE-AL-PE) composite pipe 


ASTMF 1282 


Stainless steel pipe (Type 304/304L) 


ASTM A 3 12; ASTM A 778 


Stainless steel pipe (Type 3 16/31 6L) 


ASTM A 3 12; ASTM A 778 



2003 INTEREMATIONAL PLUMBING CODE® 



WATER SUPPLY AND DISTRISUTION 



PIPE FtTTlNGS 



MATERIAL 


STANDARD 


Acrylonitrile butadiene styrene (ABS) plastic 


ASTM D 2468 


Cast-iron 


ASME B 1 6.4; ASME B 1 6. 1 2 


Chlorinated polyvinyl chloride (CPVC) plastic 


ASTM F 437; ASTM F 438; ASTM F 439 


Copper or copper alloy 


ASME B16.15; ASME B16.18; ASME B16.22; ASME B16.23; 
ASME B16.26; ASME B16.29 


Fittings for cross-linked polyethylene (PEX) plastic tubing 


ASTM F 1807, ASTM F 1960, ASTM F 2080 


Gray iron and ductile iron 


AWWA C 1 10; AWWA C 153 


Malleable iron 


ASME B 16.3 


Metal (brass) insert fittings for 
Polyethylene/Aluminum/Polyethylene (PE-AL-PE) and Cross-linked 
Polyethylene/Aluminum/Polyethylene (PEX-AL-PEX) 


ASTM F 1974 


Polyethylene (PE) plastic 


ASTM D 2609 


Polyvinyl chloride (PVC) plastic 


ASTM D 2464; ASTM D 2466; ASTM D 2467; CSA-B 137.2 


Stainless steel (Type 304/304L) 


ASTM A 312; ASTM A 778 


Stainless steel (Type 3 16/31 6L) 


ASTM A 312; ASTM A 778 


Steel 


ASME B16.9; ASME B16.1 1; ASME B16.28 



Water distribution pipe shall 
conform to NSF 61 and shall conform to one of the standards 
listed in Table 605.4. All hot water distribution pipe and tubing 
shall have a minimum pressure rating of 100 psi (690 kPa) at 

180°F(82°C). 

<S<Si5.5 FMtBiigs, Pipe fittings shall be approved for installation 
with the piping material installed and shall conform to the re- 
spective pipe standards or one of the standards listed in Table 
605.5. All pipe fittings utilized in water supply systems shall 
also conform to NSF 61. The fittings shall not have ledges, 
shoulders or reductions capable of retarding or obstructing 
flow in the piping. Ductile and gray iron pipe fittings shall be 
cement mortar lined in accordance with AWWA CI 04. 



WSoS.l MeclhffliniDcally fdjrmedl lee ITltitmgSo Mechanically 
extracted outlets shall have a height not less than three times 
the thickness of the branch tube wall. 

6®5.S.L1 Fell ITldJw assmraEce. Branch tubes shall not re- 
strict the flow in the run tube. A dimple/depth stop shall be 
formed in the branch tube to ensure that penetration into 
the collar is of the correct depth. For inspection purposes, 
a second dimple shall be placed 0.25 inch (6.4 mm) above 
the first dimple. Dimples shall be aligned with the tube 
run. 

6®S.5ol.2 Brazed joKinits. Mechanically formed tee fittings 
shall be brazed in accordance with Section 605.14.1. 

6(IDS.6 FSesStok waiter commectors. Flexible water connectors 
exposed to continuous pressure shall conform to ASME 
All 2. 18.6. Access shall be provided to all flexible water con- 
nectors. 

^OSo? VaBveSo All valves shall be of the approved type and com- 
patible with the type of piping material installed in the system. 



Ȥo Manufactured pipe nip- 
ples shall conform to one of the standards listed in Table 605.8. 

TABLE S05.8 
MANUFACTURED PIPE NIPPLES 



MATERIAL 


STANDARD 


Brass-, copper-, chromium-plated 


ASTM B 687 


Steel 


ASTM A 733 



The following 
types of joints and connections shall be prohibited: 

1. Cement or concrete joints. 

2. Joints made with fittings not approved for the specific in- 
stallation. 

3. Solvent-cement joints between different types of plastic 
pipe. 

4. Saddle-type fittings. 

6(11)5.1 ABS pBasHko Joints between ABS plastic pipe or fit- 
tings shall comply with Sections 605.10.1 through 605.10.3. 

605.1 dJol Medhamkal jomHs. Mechanical joints on water 
pipes shall be made with an elastomeric seal conforming to 
ASTM D 3 139. Mechanical joints shall only be installed in 
underground systems, unless otherwise approved. Joints 
shall be installed only in accordance with the manufac- 
turer's instructions. 

605.1(111,2 Solvemit cememttimgo Joint surfaces shall be clean 
and free from moisture. Solvent cement that conforms to 
ASTM D 2235 shall be applied to all joint surfaces. The 
joint shall be made while the cement is wet. Joints shall be 



2003 IMTERMATIOMAL PLUWIBW© CODE® 



39 



made in accordance with ASTM D 2235. Solvent-cement 
joints shall be permitted above or below ground. 



shall be brazed with a filler metal conforming to AWS 

A5.8. 



Threads shall conform to 
ASME B 1.20. 1. Schedule 80 or heavier pipe shall be per- 
mitted to be threaded with dies specifically designed for 
plastic pipe. Approved thread lubricant or tape shall be ap- 
plied on the male threads only. 



DS-cemeiDiL Joints between asbestos- cement 
pipe or fittings shall be made with a sleeve coupling of the same 
composition as the pipe, sealed with an elastomeric ring con- 
forming to ASTM D 1869. 

605.12 Brass. Joints between brass pipe or fittings shall com- 
ply with Sections 605.12.1 through 605.12.4. 

605.12.1 Brazed joimte. All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 
shall be brazed with a filler metal conforming to AWS A5. 8. 



Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 



5. Threads shall conform to 
ASME Bl.20.1. Pipe-joint confound or tape shall be ap- 
plied on the male threads only. 

605,12.4 Welded! joimts. All joint surfaces shall be cleaned. 
The joint shall be welded with an approved filler metal. 

605.13 Gray iroini and dttuctnle irom jonmts. Joints for gray and 
ductile iron pipe and fittings shall comply with AWWA CI 1 1 
and shall be installed in accordance with the manufacturer's in- 
stallation instructions. 



Joints between copper or copper-alloy 
pipe or fittings shall comply with Sections 605.14.1 through 
605.14.5. 



All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 
shall be brazed with a filler metal conforming to AWS A5.8. 



Is. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 



tSo Solder joints shall be made in ac- 
cordance with the methods of ASTM B 828. All cut tube 
ends shall be reamed to the full inside diameter of the tube 
end. All joint surfaces shall be cleaned. A flux conforming 
to ASTM B 8 1 3 shall be applied. The joint shall be soldered 
with a solder conforming to ASTM B 32. The joining of wa- 
ter supply piping shall be made with lead-free solder and 
fluxes. "Lead free" shall mean a chemical composition 
equal to or less than 0.2-percent lead. 



Threads shall conform to 
ASME Bl.20.1. Pipe-joint confound or tape shall be ap- 
plied on the male threads only. 

605.14.5 Welded Jonete. All joint surfaces shall be cleaned. 
The joint shall be welded with an approved filler metal. 



605.15 Copper tiiilbmg. Joints between copper or copper-alloy 
tubing or fittings shall comply with Sections 605. 15. 1 through 
605.15.4. 



Flared joints for water pipe shall 
be made by a tool designed for that operation. 

605.1So3 Mecllisiimkall j®iMteo Mechanical joints shall be 
installed in accordance vidth the manufacturer's instruc- 
tions. 



6(I])5ol5o4 SoMered Jonmte. Solder joints shall be made in 
accordance with the methods of ASTM B 828. All cut 
tube ends shall be reamed to the full inside diameter of the 
tube end. All joint surfaces shall be cleaned. A flux con- 
forming to ASTM B 8 13 shall be applied. Tlie joint shall 
be soldered with a solder conforming to ASTM B 32. The 
joining of water supply piping shall be made with 
lead-free solders and fluxes. "Lead free" shaD mean a 
chemical composition equal to or less than 0.2-percent 
lead. 

6([])5ol6 CFVC plasMc. Joints between CPVC plastic pipe or 
fittings shall comply with Sections 605.16.1 through 
605.16.3. 



6(II>Sol6ol Mecdaraikal joimte. Mechanical joints shall be 
installed in accordance with the manufacturer's instruc- 
tions. 

60S<.16o2 Sdjlvemt cisiiimemtimg. Joint surfaces shall be clean 
and free from moisture, and an approved primer shall be 
applied. Solvent cement, orange in color and conforming 
to ASTM F 493, shall be applied to all joint surfaces. The 
joint shall be made while 4e cement is wet, and in accor- 
dance with ASTM D 2846 or ASTM F 493. Sol- 
vent-cement joints shall be permitted above or below 
ground, 

Escepitnom; Aprimer is not required where all of the fol- 
lowing conditions apply: 

1 . The solvent cement used is third-party certified as 
conforming to ASTM F 493. 

2. The solvent cement used is yellow in color. 

3. The solvent cement is used only for joining V^ inch 
(12.7 mm) through 2 inch (5 1 mm) diameter CPVC 
pipe and fittings. 

4. The CPVC pipe and fittings are manufactured in ac- 
cordance with ASTM D 2846. 



All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 



Threads shall conform to 
Bl.20.1. Schedule 80 or heavier pipe shall be per- 
mitted to be threaded with dies specifically designed for 
plastic pipe, but the pressure rating of the pipe shall be re- 
duced by 50 percent. Thread by socket molded fittings 
shall be permitted. Approved thread lubricant or tape 
shall be applied on the male threads only. 

605.17 Cros§=S5mk®d pfflflyetteykme plastie. Joints between 
cross-linked polyethylene plastic tubing or fittings shall 
comply with Sections 605.17.1 and 605.17.2. 

605,17ol FEaEredJoflmts, Flared pipe ends shall be made by 
a tool designed for that operation. 

605.17.2 Mectiamkal Joimts. Mechanical joints shall be 
installed in accordance with the manufacturer's instruc- 



2003 iMTERMATtONAL PLUMBING CODE® 



t 



tions. Fittings for cross-linked polyethylene (PEX) plastic 
tubing as described in ASTM F 1807, ASTM F 1960 and 
ASTM F 2080 shall be installed in accordance with the man- 
ufacturer's instructions. 



Joints between galvanized steel pipe or fittings 
shall conply with Sections 605.18.1 and 605.18.2. 

6(!J§.lSol Tlireadledl jdDRnitSo Threads shall conform to ASME 
B 1.20.1. Pipe-joint compound or tape shall be applied on 
the male threads only. 

6®SJSo2 Mectnaimkall jmiimtts. Joints shall be made with an 
approved elastomeric seal. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 

6©Sol9 FolytouflHyleini® plasMc Joints between polybutylene 
plastic pipe and tubing or fittings shall comply with Sections 
605.19.1 through 605.19.3. 

(5([l)5.19ol Fflared jomHs. Flared pipe ends shall be made by a 
tool designed for that operation. 

<S^5A9.2 Meait=ffiiii§n(iiiini j©aini(i§o Joints shall be of the 
socket-fiisionorbutt-fusiontype. Joint surfaces shall be clean 
and free from moisture. All joint surfaces shall be heated to 
melt ten^erature and joined. The joint shall be undisturbed 
until cool. Joints shall be made in accordance with ASTM D 
2657, ASTM D 3309 or CAN3-B137.8M. 



5. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 
Metallic lock rings employed with insert fittings as de- 
scribed in ASTM D 3309 or CAN3-B137.8M shall be in- 
stalled in accordance with the manufacturer's instructions. 



Joints between polyethylene 
plastic pipe and tubing or fittings shall comply with Sections 
605.20.1 through 605.20.4. 



Flared joints shall be permitted 
where so indicated by the pipe manufacturer. Flared joints 
shall be made by a tool designed for that operation. 

(5CD§o2(Q)o2 Healt-fiuiSBomi j©iraiit§. Joint surfaces shall be clean 
and free from moisture. All joint surfaces shall be heated to 
melt temperature and joined. The joint shall be undisturbed 
until cool. Joints shall be made in accordance with ASTM D 
2657. 



. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 

6(D)So2(D)o4 ImsitallatBOinio Polyethylene pipe shall be cut 
square, with a cutter designed for plastic pipe. Except where 
joined by heat fusion, pipe ends shall be chamfered to re- 
move sharp edges. Kinked pipe shall not be installed. The 
minimum pipe bending radius shall not be less than 30 pipe 
diameters, or the minimum coil radius, whichever is greater. 
Piping shall not be bent beyond straightening of the curva- 
ture of the coil. Bends shall not be permitted within 10 pipe 
diameters of any fitting or valve. Stiffener inserts installed 
with compression-type couplings and fittings shall not ex- 
tend beyond the clamp or nut of the coupling or fitting. 

6®So21 FVC plasilk. Joints between PVC plastic pipe or fit- 
tings shall comply with Sections 605.21.1 through 605.21.3. 



6([D§o2Ll Meclhamcail joMits, Mechanical joints on water 
pipe shall be made with an elastomeric seal conforming to 
ASTM D 3139. Mechanical joints shall not be installed in 
above-ground systems unless otherwise approved. Joints 
shall be installed in accordance with the manufacturer's in- 
structions. 

6([D5o21o2 §®EveEtt cememMinigo Joint surfaces shall be clean 
and free from moisture. A purple primer that conforms to 
ASTM F 656 shall be applied. Solvent cement not purple in 
color and conforming to ASTM D 2564 or CSA-B 137.3 
shall be applied to all joint surfaces. The joint shall be made 
while the cement is wet and shall be in accordance with 
ASTM D 2855. Solvent-cement joints shall be permitted 
above or below ground. 



Threads shall conform to ASME 
B 1 .20. 1 . Schedule 80 or heavier pipe shall be permitted to be 
threaded with dies specifically designed for plastic pipe, but 
the pressure rating of the pipe shall be reduced by 50 percent. 
Thread by socket molded fittings shall be permitted. Approved 
thread lubricant or tape shall be applied on the male threads 
only. 

6<Si5o22 Siiaimless steeL Joints between stainless steel pipe and 
fittings shall comply with Sections 605.22.1 and 605.22.2. 

605«22ol MscliiaEkal jonnrts., Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 



5, Ail joint surfaces shall be cleaned. 
The joint shall be welded autogenously or with an approved 
filler metal as referenced in ASTM A 312. 



Is, Joints between dif- 
ferent piping materials shall be made with a mechanical joint of 
the compression or mechanical-sealing type, or as permitted in 
Sections 605.23.1, 605.23.2 and 605.23.3. Connectors or adapt- 
ers shall have an elastomeric seal conforming to ASTM D 1869 
or ASTM F 477. Joints shall be installed in accordance with the 
manufacturer's instructions. 

6(!])5o23ol Copper or copper-alloy tiuMMg to galvamilzedl 
siteeB pSpSo Joints between copper or copper-alloy tubing 
and galvanized steel pipe shall be made with a brass fitting 
or dielectric fitting. The copper tubing shall be soldered to 
the fitting in an approved manner, and the fitting shall be 
screwed to the threaded pipe. 

6(II)§o23,2 IPIastk pnpe or tabnimg to otlher pnpimg materiaL 
Joints between different grades of plastic pipe or between 
plastic pipe and other piping material shall be made with an 
approved adapter fitting. 

6(!])5.23o3 SHamkss stoeL Joints between stainless steel and 
different piping materials shall be made with a mechanical 
joint of the compression or mechanical sealing type or a di- 
electric fitting. 



WME^ DSSTeiByiDOM SYSTEiS 

A LocaMom off ffMll-opeim valveSo Full-open valves shall be 
installed in the following locations: 



2003 INTERNATIONAL PLUIMBBIMG CODE® 



WATER SUPPLY AMD DISTRIBUTION 



1 . On the building water service pipe from the pubhc water 
supply near the curb. 

2. On the water distribution supply pipe at the entrance into 
the structure. 

3. On the discharge side of every water meter. 

4. On the base of every water riser pipe in occupancies other 
than multiple-family residential occupancies that are two 
stories or less in height and in one- and two-family resi- 
dential occupancies. 

5. On the top of every water down- feed pipe in occupancies 
other than one- and two-family residential occupancies. 

6. On the entrance to every water supply pipe to a dwelling 
unit, except where supplying a single fixture equipped 
with individual stops. 

7. On the water supply pipe to a gravity or pressurized water 
tank. 

8. On the water supply pipe to every water heater. 

606.2 Location of stiutoff valves. Shutoff valves shall be in- 
stalled in the following locations: 

1 . On the fixture supply to each plumbing fixture other than 
bathtubs and showers in one- and two-family residential 
occupancies, and other than in individual guestrooms that 
are provided with unit shutoff valves in hotels, motels, 
boarding houses and similar occupancies. 

2. On the water supply pipe to each sillcock. 

3. On the water supply pipe to each appliance or mechanical 
equipment. 

606.3 Access to valves. Access shall be provided to all re- 
quired full-open valves and shutoff valves. 

606.4 Valve identiflcation. Service and hose bibb valves shall 
be identified. All other valves installed in locations that are not 
adjacent to the fixture or appliance shall be identified, indicat- 
ing the fixture or appliance served. 



k5 Water pressure booster systems. Water pressure 
booster systems shall be provided as required by Sections 
606.5.1 through 606.5.10. 

606.5.1 Water pressure booster systems requfred. Where 
the water pressure in the public water main or individual 
water supply system is insufficient to supply the minimum 
pressures and quantities specified in this code, the supply 
shall be supplemented by an elevated water tank, a 
hydropneumatic pressure booster system or a water pres- 
sure booster pump installed in accordance with Section 
606.5.5. 

606.5.2 Support. All water supply tanks shall be supported 
in accordance with the International Building Code. 

606.5.3 Covers. All water supply tanks shall be covered to 
keep out unauthorized persons, dirt and vermin. The covers 
of gravity tanks shall be vented with a return bend vent pipe 
with an area not less than the area of the down- feed riser 
pipe, and the vent shall be screened with a corro- 
sion-resistant screen of not less than 1 6 by 20 mesh per inch 
(630 by 787 mesh per m). 



,4 Overflows for water supply tanks. Each gravity or 
suction water supply tank shall be provided with an over- 
flow with a diameter not less than that shown in Table 
606.5.4. The overflow outlet shall discharge above and 
within not less than 6 inches (152 mm) of a roof or roof 
drain, floor or floor drain, or over an open v/ater-supplied 
fixture. The overflow outlet shall be covered with a corro- 
sion-resistant screen of not less than 1 6 by 20 mesh per inch 
(630 by 787 mesh per m) and by 0.25-inch (6.4 mm) hard- 
ware cloth or shall terminate in a horizontal angle seat check 
valve. Drainage from overflow pipes shall be directed so as 
not to freeze on roof walks. 

TABLE S06.5.4 
SIZES FOR OVERFLOW PIPES FOR WATER SUPPLY TANKS 



MAXIMUM CAPACITY OF 

WATER SUPPLY LIME TO 

TANK (gpm) 


DIAMETER OF OVERFLOW 
PtPE (Inches) 


0-50 


2 


50- 150 


2% 


150-200 


3 


200 - 400 


4 


400 - 700 


5 


700- 1,000 


6 


Over 1 ,000 


8 



For SI: 1 inch = 25.4 mm, 1 gallon per minute = 3.785 L/rn. 



,S Low-pressure cutoff required on booster pumps. 
A low-pressure cutoff shall be installed on all booster pumps 
in a water pressure booster system to prevent creation of a 
vacuum or negative pressure on the suction side of the pump 
when a positive pressure of 10 psi (68.94 kPa) or less occurs 
on the suction side of the pump. 

606.5.6 Potable water iialet control and location. Potable 
water inlets to gravity tanks shall be controlled by a fill valve 
or other automatic supply valve installed so as to prevent the 
tank from overflowing. The inlet shall be terminated so as to 
provide an air gap not less than 4 inches (102 mm) above the 
overflow. 



.5.7 Tank drain pipes. A valved pipe shall be provided 
at the lowest point of each tank to permit emptying of the 
tank. The tank drain p ipe shall discharge a s required for 
overflow pipes and shall not be smaller in size than specified 
in Table 606.5.7. 

606.5.8 Prohibited location off potable supply tanks. Po- 
table water gravity tanks or manholes of potable water pres- 
sure tanks shall not be located directly under any soil or 
waste piping or any source of contamination. 

606.5.9 Pressure tanks, vacuum relief. All water pressure 
tanks shall be provided with a vacuum relief valve at the top 
of the tank that will operate up to a maximum water pressure 
of 200 psi (1380 kPa) and up to a maximum temperature of 
200°F (93 °C). The minimum size of such vacuum relief 
valve shall be 0.50 inch (12.7 mm). 

Exception: This section shall not apply to pressurized cap- 
tive air diaphragm/bladder tanks. 



42 



2003 INTERMATIONAL PLUMBING CODE® 



WATER SUPPLY AND DISTRIBUTION 



TABLE 606.5.7 
SIZE OF DRAIN PIPES FOR WATER TANKS 


TANK CAPACITY (gallons) 


DRAIN PIPE (inches) 


Up to 750 


1 


751 to 1,500 


Vl^ 


1,501 to 3,000 


2 


3,001 to 5,000 


2'h 


5,000 to 7,500 


3 


Over 7,500 


4 



For SI: I inch = 25.4 mm, 1 gallon = 3,785 L. 



. Every pressure tank in a 
hydropneumatic pressure booster system shall be protected 
with a pressure relief valve. The pressure relief valve shall 
be set at a maximum pressure equal to the rating of the tank. 
The relief valve shall be installed on the supply pipe to the 
tank or on the tank. The relief valve shall discharge by grav- 
ity to a safe place of disposal. 



test. Upon completion of a section 
of or the entire water supply system, the system, or portion 
completed, shall be tested in accordance with Section 312. 



6Di73 Tlhiermail esparasflomi control A means of controlling in- 
creased pressure caused by thermal expansion shall be pro- 
vided where required in accordance with Sections 607.3.1 and 
607.3.2. 



ig valve. For water service system 
sizes up to and including 2 inches (5 1 mm), a device for con- 
trolling pressure shall be installed where, because of ther- 
mal expansion, the pressure on the downstream side of a 
pressure-reducing valve exceeds the pressure-reducing 
valve setting. 



or check valve. 
Where a backflow prevention device, check valve or other 
device is installed on a water supply system utilizing storage 
water heating equipment such that thermal expansion 
causes an increase in pressure, a device for controlling pres- 
sure shall be installed. 



;§. Fixture fittings, faucets 
and diverters shall be installed and adjusted so that the flow of 
hot water from the fittings corresponds to the left-hand side of 
the fixture fitting. 



m Shower and tub/shower mixing valves conform- 
ing to ASSE 1 1 6, where the flow of hot water corresponds to 
the markings on the device. 



K> 



HOT WME^ SUPPLY SYSTECyS 

M Where reqiBEred. In residential occupancies, hot water 
shall be supplied to all plumbing fixtures and equipment uti- 
lized for bathing, washing, culinary purposes, cleansing, laun- 
dry or building maintenance. In nonresidential occupancies, 
hot water shall be supplied to all plumbing fixtures and equip- 
ment utilized for culinary purposes, cleansing, laundry or 
building maintenance. In nonresidential occupancies, hot wa- 
ter or tempered water shall be supplied for bathing and washing 
purposes. Tempered water shall be delivered from accessible 
hand-washing facilities. 

6107.2 Hoft water §upply temperature mamteiniainiceo Where 
the developed length of hot water piping from the source of hot 
water supply to the farthest fixture exceeds 100 feet (30 480 
mm), the hot water supply system shall be provided with a 
method of maintaining the temperature in accordance with the 
International Energy Conservation Code. 



Circulating hot w ater s ystem 
piping shall be insulated in accordance with the Interna- 
tional Energy Conservation Code. 



|E| 607.2.2 Hot water system comtrols. Automatic circu- 
lating hot water sy stem pumps or heat trace shall be ar- 
ranged to be conveniently turned off, automatically or 
manually, when the hot water system is not in operation. 



Where a thermostatic mixing 
valve is used in a system with a hot water recirculating pump, 
the hot water or tempered water return line shall be routed to 
the cold water inlet pipe of the water heater and the cold water 
inlet pipe or the hot water return connection of the thermo- 
static mixing valve. 



P^QTECTDON OF POTABLE WATER SUPPLY 



A potable water supply system shall be de- 
signed, installed and maintained in such a manner so as to pre- 
vent contamination from nonpotable liquids, solids or gases 
being introduced into the potable water supply through 
cross-connections or any other piping connections to the sys- 
tem. Backflow preventer applications shall conform to Table 
608.1, except as specifically stated in Sections 608.2 through 
608.16.9. 



5. The supply lines or fittings for every 
plumbing fixture shall be installed so as to prevent backflow. 

6(D83 Devices, apperteraances, appJiances and apparatus. 
All devices, appurtenances, appliances and apparatus intended 
to serve some special function, such as sterilization, distilla- 
tion, processing, cooling, or storage of ice or foods, and that 
connect to the water supply system, shall be provided with pro- 
tection against backflow and contamination of the water sup- 
ply system. Water pumps, filters, softeners, tanks and all other 
appliances and devices that handle or treat potable water shall 
be protected against contamination. 



hi Special! eqojpment, water supply protection. The 
water supply for hospital fixtures shall be protected against 
backflow with a reduced pressure principle backflow 
preventer, an atmospheric or spill-proof vacuum breaker, or 
an air gap. Vacuum breakers for bedpan washer hoses shall 
not be located less than 5 feet (1524 mm) above the floor. 
Vacuum breakers for hose connections in health care or lab- 
oratory areas shall not be less than 6 feet (1829 mm) above 
the floor. 



• service piping. Water service piping shall be pro- 
tected in accordance with Sections 603.2 and 603.2.1. 



2003 IWTERiMATIONAL PLUMBING CODE® 



43 



WATER SUPPLY AMD DJSTRIBUTIOW 



APPUeATBOM OF BACCCFLOW PREVEWTERS 



DEVBCE 


DEGREE OF 
HAZARD ° 


APPUCATSOM" 


APPLICABLE STANDARDS 


Air gap 


High or low 
hazard 


Backsiphonage or backpressure 


ASMEAl 12.1.2 


Air gap fittings for use with 
plumbing fixtures, appliances and 
appurtenances 


High or low 
hazard 


Backsiphonage or backpressure 


ASMEAl 12.1.3 


Antisiphon-type fill valves for 
gravity water closet flush tanks 


High hazard 


Backsiphonage only 


ASSE 1002, CSA-B 125 


Barometric loop 


High or low 
hazard 


Backsiphonage only 


(See Section 608.13.4) 


Reduced pressure principle 
backflow preventer and reduced 
pressure principle fire protection 
backflow preventer 


High or low 
hazard 


Backpressure or backsiphonage 
Sizes Vs". 16" 


ASSE 1013, AWWAC511, 
CAN/CSA B64.4 


Reduced pressure detector fire 
protection backflow prevention 
assemblies 


High or low 
hazard 


Backsiphonage or backpressure 
(Fire sprinkler systems) 


ASSE 1047 


Double check backflow 
prevention assembly and double 
check fire protection backflow 
prevention assembly 


Low hazard 


Backpressure or backsiphonage 
Sizes V- 16" 


ASSE 1015, AWWAC5 10 


Double check detector fire 
protection backflow prevention 
assemblies 


Low hazard 


Backpressure or backsiphonage 
(Fire sprinkler systems) Sizes 2" 
-16" 


ASSE 1048 


Dual-check-valve-type backflow 
preventer 


Low hazard 


Backpressure or backsiphonage 
Sizes V/'-l" 


ASSE 1024 


Backflow preventer with 
intermediate atmospheric vents 


Low hazard 


Backpressure or backsiphonage 
Sizes V4" - V4" 


ASSE 1012, CAN/CSA-B64.3 


Backflow preventer for 
carbonated beverage machines 


Low hazard 


Backpressure or backsiphonage 
Sizes '/;'- Vs" 


ASSE 1022 


Pipe-applied atmospheric-type 
vacuum breaker 


High or low 
hazard 


Backsiphonage only 
Sizes 'U" - 4" 


ASSE 1001, CAN/CSA-B64.1.1 


Pressure vacuum breaker 
assembly 


High or low 
hazard 


Backsiphonage only 
Sizes Vj" - 2" 


ASSE 1020 


Hose-connection vacuum breaker 


High or low 
hazard 


Low head backpressure or 
backsiphonage 

Sizes 'A". V. 1" 


ASSE 101 1, CAN/CSA-B64.2 


Vacuum breaker wall hydrants, 
frost-resistant, automatic draining 
type 


High or low 
hazard 


Low head backpressure or 

backsiphonage 

Sizes V, 1" 


ASSE 1019, CAN/CSA-B64.2.2 


Laboratory faucet backflow 
preventer 


High or low 
hazard 


Low head backpressure and 
backsiphonage 


ASSE 1035, CSAB64.7 


Hose connection backflow 
preventer 


High or low 
hazard 


Low head backpressure, rated 
working pressure backpressure 
or backsiphonage 
Sizes Vj"-!" 


ASSE 1052 


Spillpr oof vacuum breaker 


High or low 
hazard 


Backsiphonage only 
Sizes 'U"-l" 


ASSE 1056 



For SI: 1 inch = 25.4 mm. 

a. Low hazard-See Pollution (Section 202). 
High hazard-See Contamination (Section 202). 

b. See Backpressure (Section 202). 

See Backpressure, low head (Section 202). 
See Backsiphonage (Section 202). 



2003 ^MTERMATBO^SAL PLUMBING CODE® 



WMEB SyPFLY AND DISTIRDOUTIOM 



{S®S«5 ClhceiMkaifls aiimdl ©llIliKsr sialbsiiaiinKces. Chemicals and other 
substances that produce either toxic conditions, taste, odor or 
discoloration in a potable water system shall not be introduced 
into, or utilized in, such systems. 

6{[D8„(5 C!r®§§°(£(D)nM®(eftnoim soiUKiroL Cross connections shall be 
)ited, except where approved protective devices are in- 



(iS{[DSo(Sol Pirfvaite wfflteir §iinp[pD5®§, Cross connections be- 
tween a private water supply and a potable public supply 



o7 §toip°aimdl=wffl§(l(B valves iprdjUnnlbfitedl., Combination 
stop-and-waste valves or cocks shall not be installed under- 



,® wateiTo In all 

buildings where two or more water distribution systems, one po- 
table water and the other nonpotable water, are installed, each 
system shall be identiied either by color marking or metal tags 
in accordance with Sections 608.8.1 through 608.8.3. 

6®SoSo]l llmi(!}>jrjmMmini. Pipe identification shall include the 
contents of the piping system and an arrow indicating the di- 
rection of flow. Hazardous piping systems shall also contain 
information addressing the nature of the hazard. Pipe identi- 
fication shall be repeated at maximum intervals of 25 feet 
(7620 mm) and at each point where the piping passes 
through a wall, floor or roof. Lettering shall be readily ob- 
servable within the room or space the piping is located. 

6(IDS<,S=2 CddDE. The color of the pipe identification shall be 
discemable and consistent throughout the building. 



oS3 §k(Eo The size of the background color field and let- 
tering shall comply with Table 608.8.3. 



PDPE DIAMETER 



3/4 to IV4 



l'/2t0 2 



2'/2 to 6 



8 to 10 



over 10 



LEMQTC^ 

BAeccoiRoywD 



12 



24 



32 



LETrER!l 



0.5 



0.75 



1.25 



2.5 



3.5 



For SI: 1 inch = 25.4 mm. 



Water utilized for the cooling 
or other processes shall not be returned to the po- 
water system. Such water shall be discharged into a drain- 
system through an air gap or shall be utilized for non- 



6®SoIl(Q) IRenfls® oiFpnpsffiigo Piping that has been utilized for any 
purpose other than conveying potable water shall not be uti- 
lized for conveying potable water. 



^(IDSolll Fainifflfinmg ®ff wateir tomlks. The interior surface of a pota- 
ble water lank shall not be lined, painted or repaired with any 
material that changes the taste, odor, color or potability of the 
water supply when the tank is placed in, or returned to, service. 

6(D)Sol2 PoiiMps amdl otUher aippDnaimceSo Water pumps, filters, 
softeners, tanks and all other devices that handle or treat pota- 
ble water shall be protected against contamination. 

^(USolS EskeIMIow protecltnomo Means of protection against 
backflow shall be provided in accordance with Sections 
608.13.1 through 608.13.9. 

6(DSol3„]l Anir gap. The minimum required air gap shall be 
measured vertically from the lowest end of a potable water 
outlet to the flood level rim of the fixture or receptacle into 
which such potable water outlet discharges. Air gaps shall 
comply with ASME A! 12. 1 .2 and air gap fittings shall com- 
ply with ASMEAl 12.1.3. 

(5(D)8o]13<.2 Eedlecedl prsssimrs pirfmcnpk teaclkiniow 
pireveimters. Reduced pressure principle backflow preventers 
shall conform to ASSE 1013, AWWA C511 or 
CAN/CSA-B64.3. Reduced pressure detector assembly 
backflow preventers shall conform to ASSE 1047. These de- 
vices shall be permitted to be installed where subject to con- 
tinuous pressure conditions. The relief opening shall 
discharge by air gap and shall be prevented from being sub- 
merged. 

6(II)S.13o3 BfflcMllow preveuiiteir w'nth mt&wmedmtis atom©- 
spltoeirk v®m(L Backflow preventers with intermediate atmo- 
spheric vents shall conform to ASSE 1012 or CAN/ 
CSA-B64.3. These devices shall be permitted to be installed 
where subject to continuous pressure conditions. The relief 
opening shall discharge by air gap and shall be prevented 
from being submerged. 



hl3A ISairdDinnieitdc Io®p. Barometric loops shall precede 
the point of connection and shall extend vertically to a 
height of 35 feet (1 668 mm). A barometric loop shall only 
be utilized as an atmospheric-type or pressure-type vacuum 
breaker. 



IA3S Pressiiiiire-ftyp© vacamminm breakers. Pressure-type 
vacuum breakers shall conform to ASSE 1020 and 
spillproof vacuum breakers shall comply with ASSE 1056. 
These devices are designed for installation under continu- 
ous pressure conditions when the critical level is installed at 
the required height. Pressure-type vacuum breakers shall 
not be installed in locations where spillage could cause 
damage to the structure. 

6(I])S.]13o6 Atoosplheirnc-ftype vacEnnDm toireakeirs. Pipe-ap- 
plied atmospheric-type vacuum breakers shall conform to 
ASSE 1001 orCAN/CSA-B64.1.]. Hose-connection vac- 
uum breakers shall conform to ASSE 1011, ASSE 1019, 
ASSE 1035, ASSE 1052, CAN/CSA-B64.2, CAN/CSA- 
B64.2.2 or CSA B64.7. These devices shall operate under 
normal atmospheric pressure when the critical level is in- 
stalled at the required height. 



Double check- 
valve assemblies shall conform to ASSE 1015 or AWWA 
C510. Double-detector check-valve assemblies shall con- 
form to ASSE 1048. These devices shall be capable of oper- 
ating under continuous pressure conditions. 



Spillproof vacuum 
breakers (SVB) shall conform to ASSE 1056. These devices 
are designed for installation under continuous-pressure 
conditions when the critical level is installed at the required 
height. 



ical dnspemser 
Backflow devices for chemical dispensers shall comply 
with ASSE 1 055 or shall be equipped with an air gap fitting. 



Access shall be 
provided to backflow preventers as specified by the installation 
instructions of the approved manufacturer. 



OoaMoor emdosures for backflciiw 
Outdoor enclosures for backflow prevention 
devices shall comply with ASSE 1060. 

608,15 Protectiom off potable water OMtlets. All potable water 
openings and outlets shall be protected against backflow in 
accordance with Section 608.15.1, 608.15.2, 608.15.3, 
608.15.4, 608.15.4.1, 608.15.4.2 or 608.15.4.3. 

6(D)§.1S.1 Frotectioe by air gap. Openings and outlets shall 
be protected by an air gap between the opening and the 
fixture flood level rim as specified in Table 608.15.1. 
Openings and outlets equipped for hose connection shall be 
protected by means other than an air gap. 

15.2 



preverater. Openings and outlets shall be pro- 
tected by a reduced pressure principle backflow preventer. 



ilherk veot. Openings and outlets shall be 
protected by a backflow preventer with an intermediate at- 
mospheric vent. 

608.11 5.4 Protectaom by a vacuiiuim breaker. Openings and 
outlets shall be protected by atmospheric-type or pres- 



sure-type vacuum breakers. The critical level of the vacuum 
breaker shall be set a minimum of 6 inches ( 1 52 mm) above 
the flood level rim of the fixture or device. Fill valves shall 
be set in accordance with Section 425 . 3. 1 . Vacuum breakers 
shall not be installed under exhaust hoods or similar loca- 
tions that will contain toxic fiimes or vapors. Pipe-applied 
vacuum breakers shall be installed not less than 6 inches 
(152 mm) above the flood level rim of the fixture, receptor 
or device served. 

608,15.4.1 Deck-moMinited amd mtegraS vacMiam break- 
ers. Approved deck-mounted or equipment-mounted vac- 
uum breakers and faucets with integral atmospheric or 
spillproof vacuum breakers shall be installed in accordance 
with the manufacturer's instmctions and the requirements 
for labeling with the critical level not less than 1 inch (25 
mm) above the flood level rim. 



608,15,4,2 Hose comnectioinis, Sillcocks, hose bibbs, wall 
hydrants and other openings with a hose connection shall 
be protected by an atmospheric-type or pressure-type vac- 
uum breaker or a permanently attached hose connection 
vacuum breaker. 



1. This section shall not apply to water heater and 
boiler drain valves that are provided with hose con- 
nection threads and that are intended only for tank 
or vessel draining. 

2. This section shall not apply to water supply valves 
intended for connection of clothes v/ashing ma- 
chines where backflow prevention is otherwise 
provided or is integral with the machine. 



tem. Connec- 
tions to the potable water system shall conform to Sections 
608.16.1 through 608.16.9. 



O 



TABLE 608.115.11 
JIMIMUM REQUIRED MR GAPS 



FIXTURE 


MINIMUM MH GAP 


Awav ^om a waif (imielhes) 


Ctos© «o a wall (icnehes) 


Lavatories and other fixtures with effective opening not greater than 
Vi inch in diameter 


1 


IV, 


Sink, laundry trays, gooseneck back faucets and other fixtures with 
effective openings not greater than Va inch in diameter 


1.5 


2.5 


Over-rim bath fillers and other fixtures with effective openings not 
greater than 1 inch in diameter 


2 


3 


Drinking water fountains, single orifice not greater than V^ inch in 
diameter or muUiple orifices with a total area of 0. 1 50 square inch 
(area of circle Vis inch in diameter) 


1 


IV, 


Effective openings greater than 1 inch 


Two times the diameter 
of the effective opening 


Three times the diameter 
of the effective opening 



For SI: linch = 25.4mm. 

a. Applicable where walls or obstructions are spaced from the nearest inside-edge of the spout opening a distance greater than three times the diameter of the 
effective opening for a single wall, or a distance greater than four times the diameter of the effective opening for two intersecting walls. 



seiisers. The water supply cormec- 
tion to carbonated beverage dispensers shall be protected 
against backflow by a backflow preventer conforming to 
ASSE 1022 or by an air gap. The backflow preventer device 
and the piping downstream therefrom shall not be affected 
by carbon dioxide gas. 



The potable supply to the 
boiler shall be equipped with a backflow preventer with an in- 
termediate atmospheric vent complying with ASSE 1012 or 
CAN/CSA B64.3. Where conditioning chemicals are intro- 
duced into the system, the potable water connection shall be 
protected by an air gap or a reduced pressure principle 
backflow preventer, complying with ASSE 1013, CAN/CSA 
B64.4orAWWAC511. 



ageirSo Heat exchangers utilizing an 
essentially toxic transfer fluid shall be separated from the 
potable water by double- wall construction. An air gap open 
to the atmosphere shall be provided between the two walls. 
Heat exchangers utilizing an essentially nontoxic transfer 
fluid shall be permitted to be of single-wall construction. 

608.16.4 CoEDnecitidJBis to amtomaiitBC ffire sprmMeir systems 
ffimdl storaipnpe systems. The potable water supply to auto- 
matic fire sprinkler and standpipe systems shall be protected 
against backflow by a double check-valve assembly or a re- 
duced pressure principle backflow preventer. 



1. Where systems are installed as a portion of the water 
distribution system in accordance with the require- 
ments of this code and are not provided with a fire 
department connection, isolation of the water supply 
system shall not be required. 

2. Isolation of the water distribution system is not re- 
quired for deluge, preaction or dry pipe systems. 

6(I])S.]1 6.4.1 Addiitnves or nLoimpoitalbl® soMrce. Where sys- 
tems under continuous pressure contain chemical addi- 
tives or antifreeze, or where systems are connected to a 
nonpotable secondary water supply, the potable water 
supply shall be protected against backflow by a reduced 
pressure principle backflow preventer. Where chemical 
additives or antifreeze are added to only a portion of an au- 
tomatic fire sprinkler or standpipe system, the reduced 
pressure principle backflow preventer shall be permitted 
to be located so as to isolate that portion of the system. 
Where systems are not under continuous pressure, the po- 
table water supply shall be protected against backflow by 
an air gap or a pipe applied atmospheric vacuum breaker 
conforming to ASSE 1 00 1 or CAN/CSA B64. 1 . 1 . 

6®S.16.S CommecMems to lawm nrrDgatUdDim systemms. The po- 
table water supply to lawn irrigation systems shall be pro- 
tected against backflow by an atmospheric-type v acuum 
breaker, a pressure-type vacuum breaker or a reduced pres- 
sure principle backflow preventer. A valve shall not be in- 
stalled downstream from an atmospheric vacuum breaker. 
Where chemicals are introduced into the system, the potable 
water supply shall be protected against backflow by a re- 
duced pressure principle backflow preventer. 



snalbjscit to Ibackpiressaire. Where a 
potable water coimection is made to a nonpotable line, fix- 
ture, tank, vat, pump or other equipment subject to 
back-pressure, the potable water connection shall be pro- 
tected by a reduced pressure principle backflow preventer. 

6®§ol6.7 Ctosmmficffil dUnspeEssrs. Where chemical dispens- 
ers connect to the potable water distribution system, the wa- 
ter supply system shall be protected against backflow in 
accordance with Section 608.13.1, 608.13.2, 608.13.5, 
608.13.6, 608.13.8 or 608.13.9. 

6([5S,16.S Fortolbie ckamnmg ©qnafipmemt Where the porta- 
ble cleaning equipment connects to the water distribution 
system, the water supply system shall be protected against 
backflow in accordance with Section 608.13.1, 608.13.2, 
608.13.3, 608.13.7 or 608.13.8. 



, Where dental pumping 
equipment connects to the water distribution system, the 
water supply system shall be protected against backflow in 
accordance with Section 608.13.1, 608.13.2, 608.13.5, 
608.13.6 or 608. 13.8. 



6(0)8.17 

ual water su; 

safeguarded a 
tions 608.17.1 



off flEdnvidiaal water smpplks. An individ- 
shall be located and constructed so as to be 
gainst c ontamination i n a ccordance with S ec- 
.17.8. 



.17.1 Wdl locatlioniiSo A potable ground water source or 
pump suction line shall not be located closer to potential 
sources of contamination than the distances shown in Table 
608. 1 7. 1 . In the event the underlying rock structure is lime- 
stone or fragmented shale, the local or state health depart- 
ment shall be consulted on well site location. The distances 
in Table 608.17.1 constitute minimum separation and shall 
be increased in areas of creviced rock or limestone, or where 
the direction of movement of the ground water is from 
sources of contamination toward the well. 

6([D8.17.2 Ekvattionii. Well sites shall be positively drained 
and shall be at higher elevations than potential sources of 

contamination. 



.17.3 Beptfin. Private potable well supplies shall not be 
developed from a water table less than 10 feet (3048 mm) 
below the ground surface. 



,17.4 Water-Mglhit casnmgs. Each well shall be provided 
with a water-tight casing to a minimum distance of 1 feet 
(3048 mm) below the ground surface. All casings shall ex- 
tend at least 6 inches (152 mm) above the well platform. The 
casing shall be large enough to permit installation of a sepa- 
rate drop pipe. Casings shall be sealed at the bottom in an 
impermeable stratum or extend several feet into the wa- 
ter-bearing stratum. 



58.17,5 Driied or drivem wdl casnmgs. Drilled or driven 
casings shall be of steel or other approved material. 
Where drilled wells extend into a rock formation, the well 
casing shall extend to and set firmly in the formation. The 
annular space between the earth and the outside of the cas- 
ing shall be filled with cement grout to a minimum distance 
of 10 feet (3048 mm) below the ground surface. In an in- 
stance of casing to rock installation, the grout shall extend to 
the rock surface. 



m CODE® 



TABLE 608.1 ■; 



TO 



SOURCE OF COWTAMINMIOW 


DISTAMCE (feet) 


Barnyard 


100 


Farm silo 


25 


Pasture 


100 


Pumphouse floor drain of cast iron draining 
to ground surface 


2 


Seepage pits 


50 


Septic tank 


25 


Sewer 


10 


Subsurface disposal fields 


50 


Subsurface pits 


50 



For SI: 1 foot = 304.8 mm. 

608017.6 IDog or bored well casnirags. Dug or bored well 
casings shall be of water-tight concrete, tile, or galvanized 
or corrugated metal pipe to a minimum distance of 10 feet 
(3048 mm) below the ground surface. Where the water table 
is more than 10 feet (3048 mm) below the ground surface, 
the water-tight casing shall extend below the table surface. 
Well casings for dug wells or bored wells constructed with 
sections of concrete, tile, or galvanized or corrugated metal 
pipe shall be surrounded by 6 inches (152 mm) of grout 
poured into the hole between the outside of the casing and 
the ground to a minimum depth of 10 feet (3048 mm). 

608.17.7 Cover. Every potable water well shall be equipped 
with an overlapping water-tight cover at the top of titie well 
casing or pipe sleeve such that contaminated water or other 
substances are prevented from entering the well through the 
annular opening at the top of the well casing, wall or pipe 
sleeve. Covers shall extend downward at least 2 inches (5 1 
mm) over the outside of the well casing or wall. A dug well 
cover shall be provided with a pipe sleeve permitting the 
withdrawal of the pump suction pipe, cylinder or jet body 
without disturbing the cover. Where pump sections or dis- 
charge pipes enter or leave a well through the side of the cas- 
ing, the circle of contact shall be water tight. 

608.17.8 Brairaage, All potable water wells and springs shall 
be constructed such that surface drainage will be diverted 
away from the well or spring. 



Scope. This section shall govern those aspects of health 
care plumbing systems that differ from plumbing systems in 
other structures. Health care plumbing systems shall conform 
to the requirements of this section in addition to the other re- 
quirements of this code. The provisions of this section shall ap- 
ply to the special devices and equipment installed and 
maintained in the following occupancies: musing homes, 
homes for the aged, orphanages, infumaries, first aid stations, 



psychiatric facilities, clinics, professional offices of dentists 
and doctors, mortuaries, educational facilities, surgery, den- 
tistry, research and testing laboratories, establislmients manu- 
facturing pharmaceutical drugs and medicines, and other 
structures with similar apparatus and equipment classified as 
plumbing. 



servke. All hospitals shall have two water ser- 
vice pipes installed in such a maimer so as to minimize the po- 
tential for an interruption of the supply of water in the event of a 
water main or water service pipe failure. 

609.3 Holt water. Hot water shall be provided to supply all of 
the hospital fixture, kitchen and laundry requirements. Special 
fixtures and equipment shall have hot water supplied at a tem- 
perature specified by the manufacturer. The hot water system 
shall be installed in accordance with Section 607. 



Vacuum breakers shall 
be installed a minimum of 6 inches (152 mm) above the flood 
level rim of the fixture or device in accordance with Section 
608. The flood level rim of hose connections shall be the maxi- 
mum height at which any hose is utilized. 



ProtoJlbltedl water closet amd cMfflical 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 clinical sink. This section shall not prohibit an 
approved bidet installation. 



memt. All clinical, hydrotherapeutic, radiological or any equip- 
ment that is supplied with water or that discharges to the waste 
system shall conform to the requirements of this section and 
Section 608. 



!'.7 Coinideinisate dram trap seal, A water supply shall be 
provided for cleaning, flushing and resealing the condensate 
trap, and the trap shall discharge through an air gap in accor- 
dance with Section 608. 



Each water sterilizer filled with 
water through directly coimected piping shall be equipped with 
an approved leakage diverter or bleed line on the water supply 
control valve to indicate and conduct any leakage of unsterile 
water away from the sterile zone. 



DDSDMFECTiOM OF POTABLE WMER SYSTEM 

610.1 GemeraB. New or repaired potable water systems shall be 
purged of deleterious matter and disinfected prior to utilization. 
The method to be followed shall be that prescribed by the health 
authority or water purveyor having jurisdiction or, in the absence 
of a prescribed method, the procedure described in either 
AWWA C651 or AWWA C652, or as described in. this section. 
This requirement shall apply to "on-site" or "in-plant" fabrica- 
tion of a system or to a modular portion of a system. 

1 . The pipe system shall be flushed with clean, potable water 

imtil dirty water does not appear at the points of outlet. 

2. The system or part thereof shall be filled with a water/chlo- 

rine solution containing at least 50 parts per million (50 
mg/L) of chlorine, and the system or part thereof shall be 
valved off and allowed to stand for 24 hours; or the system 



2003 IWTEIRWATJOWAL PLUMSIWG CODE® 



WMER SUPPLY AMD DDSTO1BUT101S5 



or part thereof shall be filled with a water/chlorine solu- 
tion containing at least 200 parts per million (200 mg/L) of 
chlorine and allowed to stand for 3 hours. 

3 . Following the required standing time, the system shall be 

flushed with clean potable water until the chlorine is 
purged from the system. 

4. The procedure shall be repeated where shown by a bacteri- 

ological examination that contamination remains present 
in the system. 

61 1.1 Besngifflo Drinking water treatment units shall meet the re- 
quirements of NSF 42, NSF 44, NSF 53 or NSF 62. 

(511«2 Reverse ®sm©st§ systems. The discharge from a reverse 
osmosis drinking water treatment unit shall enter the drainage 
system through an air gap or an air gap device that meets the re- 
quirements of NSF 58. 

611. 3 CoiiMecilDOim tabmg. The tubing to and from drinking 
water treatment units shall be of a size and material as recom- 
mended by the manufacturer. The tubing shall comply with 

NSF 14, NSF 42, NSF 44, NSF 53, NSF 58 or NSF 61. 

SEOTQOMiHl 
SOL^R SYSTEMS 

612,1 Solar systems. The construction, installation, alterations 
and repair of systems, equipment and appliances intended to 
utilize solar energy for space heating or cooling, domestic hot 
water heating, swimming pool heating or process heating shall 
be in accordance with the International Mechanical Code. 



TEMFER/^TyRE 0©MTR©L 
OE¥S©ES hMB ¥^L¥ES 

613ol Temperatare-actoatedll mraSmg valves. Temperature- 
actuated mixing valves, which are installed to reduce water 
temperatures to defined limits, shall comply with ASSE 1017. 



50 2003 INTERNATIONAL PLUMBING CODE® 



zs\[PT[i[Rl 1 

\mMhm miikmM 



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

7®lo2 Sewer reqiiniDiPedo Every building in which plumbing fix- 
tures are installed and all premises having drainage piping shall 
be connected to a public sewer, where available, or an approved 
private sewage disposal system in accordance with the Interna- 
tional Private Sewage Disposal Code. 

701.3 Separate sewer cnjimimeciiloinio Every building having 
plumbing fixtures installed and intended for human habitation, 
occupancy or use on premises abutting on a street, alley or ease- 
ment in which there is a public sewer shall have a separate con- 
nection with the sewer. Where located on the same lot, multiple 
buildings shall not be prohibited from connecting to a common 
building sewer that connects to the public sewer. 

701.4 Sewage ftreadmeiniL Sewage or other waste from a 
plumbing system that is deleterious to surface or subsurface 
waters shall not be discharged into the ground or into any wa- 
terway unless it has first been rendered innocuous through sub- 
jection to an approved form of treatment. 

701 .5 Dainraage to draimage system or pelbllDc sewer. Wastes 
detrimental to the public sewer system or to the functioning of 
the sewage-treatment plant shall be treated and disposed of in 
accordance with Section 1003 as directed by the code official. 

701.6 TesdSo The sanitary drainage system shall be tested in ac- 
cordance with Section 312. 

701.7 ComiimecliDoims. Direct connection of a steam exhaust, 
blowoff or drip pipe shall not be made with the building drain- 
age system. Wastewater when discharged into the building 
drainage system shall be at a temperature not higher than i40°F 
(60 °C). When higher temperatures exist, approved cooling 
methods shall be provided. 

701.S Eiffigmeeredl systems. Engineered sanitary drainage sys- 
tems shall conform to the provisions of Sections 105.4 and 714. 

701,9 3wmmsig® pSpnimg nim ffeodl seirvtce aireaso Exposed soil or 
waste piping shall not be installed above any working, storage 
or eating surfaces in food service establishments. 

SE©TI©M im 

702.1 AIb©ve=giroiuiniid samnftairy dlranmiage amdl vemU pipe. 
Above-ground soil, waste and vent pipe shall conform to one of 
the standards listed in Table 702. 1 . 



with the piping material installed and shall conform to the re- 
spective pipe standards or one of the standards listed in Table 
702.4. 



waste systeEffl. A chemical waste system shall 
be completely separated from the sanitary drainage system. 
The chemical waste shall be treated in accordance with Section 
803.2 before discharging to the sanitary drainage system. Sepa- 
rate drainage systems for chemical wastes and vent pipes shall 
be of an approved material that is resistant to corrosion and 
degradation for the concentrations of chemicals involved. 

702o(S Lead Ibeinids amd liiraps. Lead bends and traps shall not be 
less than 0.125 inch (3.2mm) wall thickness. 



MiLE 702.1 
-OTOUMD DIRABMAGE AMD VEWT IFSPI 



MATERiDAL 


SmMDARD 


Acrylonitrile butadiene styrene 
(ABS) plastic pipe 


ASTM D 2661; ASTM F 628; 
CSAB181.1 


Brass pipe 


ASTM B 43 


Cast-iron pipe 


ASTMA74;CISPI301; 
ASTM A 888 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(solid) 


ASTMF 1488 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTM F 1488 


Coextruded composite PVC 
DWV schedule 40 IPS pipe 
(solid) 


ASTM F 1488 


Coextruded composite PVC 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTMF 1488, ASTMF 891 


Coextruded composite PVC 

IPS-DR, PS 140, PS200 DWV 


ASTM F 1488 


Copper or copper-alloy pipe 


ASTM B 42; ASTM B 302 


Copper or copper-alloy tubing 

(type K, L, M or DWV) 


ASTM B 75; ASTM B 88; 
ASTM B 251; ASTM B 306 


Galvanized steel pipe 


ASTM A 53 


Glass pipe 


ASTM C 1053 


Polyolefin pipe 


CAN/CSA-B181.3 


Polyvinyl chloride (PVC) 
plastic pipe (Type DWV) 


ASTM D 2665; ASTM D 2949; 
CSAB181.2; ASTMF 1488 


Stainless steel drainage 
systems, Types 304 and 316L 


ASMEAl 12.3.1 



Underground building sanitary drainage and vent pipe 
shall conform to one of the standards listed in Table 702.2. 

702.3 BnnnEdDinig sewer pipe. Building sewer pipe shall conform 
to one of the standards listed in Table 702.3. 



yMOEiRiaiHoyMP ©yflLosw© d^aima©e and ¥emt Pim 



SEWER! PfllPI 



MATEBDAL 


BimBBMB 


Acrylonitrile butadiene styrene 
(ABS) plastic pipe 


ASTM D 2661; ASTM F 628; 
CSAB18L1 


Asbestos-cement pipe 


ASTM C 428 


Cast-iron pipe 


ASTMA74;CISPI301; 
ASTM A 888 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(solid) 


ASTM F 1488 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTM F 1488 


Coextruded composite PVC 
DWV schedule 40 IPS pipe 
(solid) 


ASTM F 1488 


Coextmded composite PVC 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTM F 1488, ASTM F 891 


Coextruded composite PVC 

IPS-DR,PS140,PS200 
DWV 


ASTM F 1488 


Copper or copper-alloy tubing 

(TVpe K, L, M or DWV) 


ASTM B 75; ASTM B 88; 
ASTM B 251; ASTM B 306 


Polyolefm pipe 


CAN/CSA-B181.3 


Polyvinyl chloride (PVC) 
plastic pipe (Type DWV) 


ASTM D 2665; ASTM D 2949; 
CSA-B181.2 


Stainless steel drainage 
systems, Type 316L 


ASMEAl 12.3.1 



MME1^D/3\L 


SmWPA^D 


Acrylonitrile butadiene styrene 
(ABS) plastic pipe 


ASTM D 2661; ASTM D 2751; 
ASTM F 628 


Asbestos-cement pipe 


ASTM C 428 


Cast-iron pipe 


ASTM A 74; ASTM: A 888; 
CISPI 301 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(solid) 


ASTM F 1488 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTM F 1488 


Coextruded composite PVC 
DWV schedule 40 IPS pipe 
(solid) 


ASTM F 1488 


Coextruded composite PVC 
DWV schedule 40 IPS pipe 
(cellular core) 


ASTM F 1488, ASTT^F 891 


Coextruded composite PVC 

IPS-DR,PS140, 
PS200, DWV 


ASTM F 1488 


Coextruded composite ABS 
sewer and drain DR-PS in 
PS35, PS50, PS 100, PS 140, 
PS200 


ASTM F 1488 


Coextruded composite PVC 
sewer and drain DR-PS in 
PS35,PS50,PS100,PS140, 
PS200 


ASTM F 1488 


Coextruded PVC sewer and drain 
PS 25, PS 50, PS 100 (cellular 
core) 


ASTM F 891 


Concrete pipe 


ASTM C14; ASTM C76; 
CAN/CSAA257JM; 
CAN/CSA A257.2M 


Copper or copper-alloy tubing 

(Type K or L) 


ASTM B 75; ASTM B 88; 
ASTM B 251 


Polyethylene (PE) plastic pipe 

(SDR-PR) 


ASTM F 7 14 


Polyvinyl chloride (PVC) 
plastic pipe (Type DWV, 
SDR26,SDR35,SDR41, 
PSSOorPSlOO) 


ASTM D 2665; ASTM D 2949; 
ASTM D 3034; CSA B 182.2; 

CAN/CSAB 182.4 


Stainless steel drainage 
systems, T^pes 304 and 316L 


ASMEAl 12.3.1 


Vitrified clay pipe 


ASTM C 4; ASTM C 700 




2003 [IWTEI^MAT[|©M/».L IPLUMIilMO S©DE« 



I^WimRY DR^IMAGE 



ms 



LE 702.4 

FJTTIMQS 



cial shall notify the owner to make the changes necessary to 
conform to this code. 



MMERl^L 


STAMP^RD 


Acrylonitrile butadiene styrene 
(ABS) plastic pipe 


ASTMD3311;CSAB181.1; 
ASTMD2661 


Cast iron 


ASME B 16.4; ASME B 16.12; 
ASTM A 74; ASTM A 888; 
CISPI 301 


Coextruded composite ABS 
DWV schedule 40 IPS pipe 
(solid 
or cellular core) 


ASTM D 2661; ASTM D 331 1; 
ASTM F 628 


Coextruded composite PVC 
DWV schedule 40 IPS-DR, 
PS140,PS200 (solid or 
cellular core) 


ASTM D 2665; ASTM D 33 1 1 ; 
ASTM F 891 


Coextruded composite ABS 
sewer and drain DR-PS in 
PS35,PS50,PS100,PS140, 
PS200 


ASTM D 2751 


Coextruded composite PVC 
sewer and drain DR-PS in 
PS35,PS50,PS100,PS140, 
PS200 


ASTM D 3034 


Copper or copper alloy 


ASME B 16.15; ASME 
B 1 6. 18; ASME B 16.22; 
ASME B 16.23; ASME 
B 1 6.26; ASME B 16.29 


Glass 


ASTM C 1053 


Gray iron and ductile iron 


AWWACllO 


Malleable iron 


ASMEB 16.3 


Polyvinyl chloride (PVC) 
plastic 


ASTM D 3311; ASTM D 2665; 
ASTMF 1866 


Stainless steel drainage 
systems, Types 304 and 
316L 


ASME A 112.3.1 


Steel 


ASMEB 16.9; ASME B16.il; 
ASMEB16.28 



laimM 7m 



TdJSol IBdJifllldninig sewer pipe inieair itlhie water service. Where the 
building sewer is installed within 5 feet ( 1 524 mm) of the water 
service, as provided for in Section 603.2, the building sewer 
pipe shall conform to one of the standards for ABS plastic pipe, 
cast-iron pipe, copper or copper-alloy tubing, or PVC plastic 
pipe listed in Table 702.3. 

7(II)3o2 Draiimage pip© im ffSlEedl grominidlo Where a building sewer 
or building drain is installed on filled or unstable ground, the 
drainage pipe shall conform to one of the standards for ABS 
plastic pipe, cast-iron pipe, copper or copper-alloy tubing, or 
PVC plastic pipe listed in Table 702.3. 

7§33 SamiDtery amd 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 shall 
be permitted to be laid side by side in one trench. 



ig sewers amd draiiniSo Existing building 
sewers and drains shall coimect with new building sewer and 
drainage systems only where found by examination and test to 
conform to the new system in quality of material. The code offi- 



m tbifflilldSinig sewers« Cleanouts on building 
sewers shall be located as set forth in Section 708. 



7iID4ol §l®pe ®f fliKodzoEltal draamage papmgo Horizontal drain- 
age piping shall be installed in uniform alignment at uniform 
slopes. The minimum slope of a horizontal drainage pipe shall 
be in accordance with Table 704. 1 . 

TABLE 7mA 
SLOPE ©F HORlZOMmL DRAIWAQE PWE 



iBIE (DCTielh®©) 


MIWIMOM SLOPE 
(BOTielhi p©ir lf@©tl) 


2V2 or less 


V4 


3 to 6 


Vs 


8 or larger 


'As 



For SI: 1 inch = 25.4 mm, 1 inch per foot = 0.083.3 mm/m. 



5. The size of the drainage piping shall not 
be reduced in size in the direction of the flow. A 4-inch by 
3-inch ( 1 02 mm by 76 mm) water closet connection shall not be 
considered as a reduction in size. 



. Horizontal 

branches shall cormect to the bases of stacks at a point located 
not less than 10 times the diameter of the drainage stack down- 
stream from the stack. Except as prohibited by Section 71 1.2, 
horizontal branches shall connect to horizontal stack offsets at 
a point located not less than 10 times the diameter of the drain- 
age stack downstream from the upper stack. 



D>rainage piping for future fixtures shall 
terminate with an approved cap or plug. 

7®4 J Bead emdso In the installation or removal of any part of a 
drainage system, dead ends shall be prohibited. Cleanout ex- 
tensions and approved future fixture drainage piping shall not 
be considered as dead ends. 



TOS.l GemeraL This section contains provisions applicable to 
joints specific to sanitary drainage piping. 
7(DSo2 ABS plasHko Joints between ABS plastic pipe or fittings 
shall comply with Sections 705.2.1 through 705.2.3. 

1^5,21 MecDnamacal j®nmit§« Mechanical joints on drainage 
pipes shall be made with an elastomeric seal conforming to 
ASTM C 1173, ASTM D 3212 or CAN/CSA-B602. Me- 
chanical joints shall be installed only in underground sys- 
tems unless otherwise approved. Joints shall be installed in 
accordance with the manufacturer's instructions. 

7(I])So2o2 §®Iveini(t cemeiniitmgo Joint surfaces shall be clean 
and free from moisture. Solvent cement that conforms to 
ASTM D 2235 or CSA B181.1 shall be applied to all joint 
surfaces. The joint shall be made while the cement is wet. 



2003 INTERWMIONAL PLOB 



53 



Joints shall be made in accordance with ASTM D 2235, 
ASTM D 2661, ASTM F 628 or CSA B181.1. Sol- 
vent-cement joints shall be permitted above or below 
ground. 

70SJ.3 Threaded joints. Threads shall conform to ASME 
Bl.20.1 . Schedule 80 or heavier pipe shall be permitted to 
be threaded with dies specifically designed for plastic pipe. 
Approved thread lubricant or tape shall be applied on the 
male threads only. 

705.3 Asbestos-cememt. Joints between asbestos-cement pipe 
or fittings shall be made with a sleeve coupling of the same 
composition as the pipe, sealed with an elastomeric ring con- 
forming to ASTM D 1869. 

705.4 Brass. Joints between brass pipe or fittings shall comply 
with Sections 705.4.1 through 705.4.4. 

705.4.1 Brazed Joimts. All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 
shall be brazed with a filler metal conforming to AWS A5.8. 

705.4.2 Mechaeicai joints. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 

705.4.3 Threaded Joints. Threads shall conform to ASME 
Bl.20.1. Pipe-joint compound or tape shall be applied on 
the male threads only. 

705.4.4 Welded joints. All joint surfaces shall be cleaned. 
The joint shall be welded with an approved filler metal. 

705.5 Cast iron. Joints between cast-iron pipe or fittings shall 
comply with Sections 705.5.1 through 705.5.3. 

705.5.1 Caulked joints. Joints for hub and spigot pipe shall 
be firmly packed with oakum or hemp. Molten lead shall be 
poured in one operation to a depth of not less than 1 inch (25 
mm). The lead shall not recede more than 0.125 inch (3.2 
mm) below the rim of the hub and shall be caulked tight. 
Paint, varnish or other coatings shall not be permitted on the 
jointing material until after the joint has been tested and ap- 
proved. Lead shall be run in one pouring and shall be 
caulked tight. Acid-resistant rope and acidproof cement 
shall be permitted. 

705.5.2 Compression gasket joints. Compression gaskets 
for hub and spigot pipe and fittings shall conform to ASTM 
C 564. Gaskets shall be compressed when the pipe is fully 
inserted. 

705.5.3 Mechanical joint coupling. Mechanical joint cou- 
plings for hubless pipe and fittings shall comply with CISPI 
310 or ASTM C 1277. The elastomeric sealing sleeve shall 
conform to ASTM C 564 or CAN/CSA B602 and shall be 
provided with a center stop. M echanical j oint couplings 
shall be installed in accordance with the manufacturer's in- 
stallation instructions. 

705.6 Concrete joints. Joints between concrete pipe and fit- 
tings shall be made with an elastomeric seal conforming to 
ASTM C 443, ASTM C 1173, CAN/CSA A257.3M or 
CAN/CSA-B602. 

705.7 Coextruded composite ABS pipe, Joints. Joints be- 
tween coextruded composite pipe with an ABS outer layer or 
ABS fittings shall comply with Sections 705.7.1 and 705.7.2. 



705.7.1 Mechanical J oimtSo Mechanical joints on drainage 
pipe shall be made with an elastomeric seal conforming to 
ASTM CI 173, ASTM D 3212 or CAN/CSA B602. Me- 
chanical joints shall not be installed in above-ground sys- 
tems, unless otherwise approved. Joints shall be installed in 
accordance with the manufacturer's instructions. 



705.7.2 Solvent cementing. Joint surfaces shall be clean 
and free from moisture. Solvent cement that conforms to 
ASTM D 2235 or CSA-B181.1 shall be applied to all joint 
surfaces. The joint shall be made while the cement is wet. 
Joints shall be made in accordance with ASTM D 2235, 
ASTM D 2661, ASTM F 628 or CSA B181.1. Sol- 
vent-cement joints shall be permitted above or below 
ground. 



Joints between 
coextruded composite pipe with a PVC outer layer or P VC fit- 
tings shall comply with Sections 705.8. 1 and 705.8.2. 

705.8.1 Mechanical joints. Mechanical joints on drainage 
pipe shall be made with an elastomeric seal conforming to 
ASTM D 3212. Mechanical joints shall not be installed in 
above-ground systems, unless otherwise approved. Joints 
shall be installed in accordance with the manufacturer's in- 
structions. 

705.8.2 Solvent cementing. Joint surfaces shall be clean 
and free from moisture. A purple primer that conforms to 
ASTM F 656 shall be applied. Solvent cement not purple in 
color and conforming to ASTM D 2564, CSA B 137.3, CSA 
Bl 81. 2 or CSA Bl 82.1 shall be applied to all joint surfaces. 
The joint shall be made while the cement is wet and shall be 
in accordance with ASTMD 2855. Solvent-cement joints 
shall be permitted above or below ground. 

705.9 Copper pipe. Joints between copper or copper-alloy pipe 
or fittings shall comply with Sections 705.9.1 dirough 705.9.5. 

705.9.1 Brazed Joints, All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 
shall be brazed with a filler metal conforming to AWS A5.8. 

705.9.2 Mechanical Joints. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 



Solder joints shall be made in ac- 
cordance with the methods of ASTM B 828. AH cut tube 
ends shall be reamed to the full inside diameter of the tube 
end. All joint surfaces shall be cleaned. A flux conforming 
to ASTM B 8 1 3 shall be applied. The joint shall be soldered 
with a solder conforming to ASTM B 32. 



Threads shall conform to ASME 
Bl.20.1. Pipe-joint compound or tape shall be applied on 
the male threads only. 



Joints. All joint surfaces shall be cleaned. 
The joint shall be welded with an approved filler metal. 

705.10 Copper tuljing. Joints between copper or copper-alloy 
tubing or fittings shall comply with Sections 705. 10. 1 through 
705.10.3. 

705.10.1 Brazed joints. All joint surfaces shall be cleaned. 
An approved flux shall be applied where required. The joint 
shall be brazed with a filler metal conforming to AWS A5.8. 



54 



2003 IMTERN^TJONAL PLUMBJMG CODE® 



g\(EE 



Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 

7(D5ol(D)o3 Soldered joJimitSo Solder joints shall be made in ac- 
cordance with the methods of ASTM B 828. All cut tube 
ends shall be reamed to the fiill inside diameter of the tube 
end. All joint surfaces shall be cleaned. A flux conforming 
to ASTM B 813 shall be apphed. The joint shall be soldered 
with a solder conforming to ASTM B 32. 

7®Soll BorosMkaite glass joflnuitSo Glass-to-glass connections 
shall be made with a bolted compression-t>T3e stainless steel 
(300 series) coupling with contoured acid-resistant elastomeric 
compression ring and a Ouorocarbon polymer inner seal ring; 
or with caulked joints in accordance with Section 705. 11.1. 

705olLl Camlked joinntec Every lead-caulked joint for hub 
and spigot soil pipe shall be firmly packed with oakum or 
hemp and filled with molten lead not less than 1 inch (25 
mm) deep and not to extend more than 0. 125 inch (3.2 mm) 
below the rim of the hub. Paint, varnish or other coatings 
shall not be permitted on the jointing material until after the 
joint has been tested and approved. Lead shall be run in one 
pouring and shall be caulked tight. Acid-resistant rope and 
acidproof cement shall be permitted. 

705.12 SlteeL Joints between galvanized steel pipe or fittings 
shall comply with Sections 705.12.1 and 705.12.2. 

705 J2 J Threaded! jomlts. Threads shall conform to ASME 
B 1.20.1. Pipe-joint compound or tape shall be applied on 
the male threads only. 

7OS0I2.2 Mectnairakal jomtSo Joints shall be made with an 
approved elastomeric seal. Mechanical joints shall be in- 
stalled in accordance with the manufacturer's instructions. 

705.13 Lead, Joints between lead pipe or fittings shall comply 
with Sections 705.13.1 and 705.13.2. 

705J3.1 BMrmiedo Bumed joints shall be uniformly fused 
together into one continuous piece. The thickness of the 
joint shall be at least as thick as the lead being joined. The 
filler metal shall be of the same material as the pipe. 



Joints shall be fully wiped, with an ex- 
posed surface on each side of the joint not less than 0.75 inch 
(19.1 mm). The joint shall be at least 0.325 inch (9.5 mm) 
thick at the thickest point. 

705.14 PVC plfflsitko Joints between PVC plastic pipe or fit- 
tings shall comply with Sections 705.14.1 through 705. 14.3. 

705,14,1 Mectoaimkal JoDimts, Mechanical joints on drainage 
pipe shall be made with an elastomeric seal conforming to 
ASTM C 1173, ASTM D 3212 or CAN/CSA-B602. Me- 
chanical joints shall not be installed in above-ground sys- 
tems, unless otherwise approved. Joints shall be installed in 
accordance with the manufacturer's instructions. 



Joint surfaces shall be clean 
and free from moisture. A purple primer that conforms to 
ASTM F 656 shall be applied. Solvent cement not purple in 
color and conforming to ASTM D 2564, CSA B 137.3, CSA 
B 1 8 1 .2 or CSA B 1 82. 1 shall be apphed to all joint surfaces. 
The joint shall be made while the cement is wet and shall be 
in accordance with ASTM D 2855. Solvent-cement joints 
shall be permitted above or below ground. 



705.14,3 Threaded jonmits. Threads shall conform to ASME 
B 1 .20. 1 . Schedule 80 or heavier pipe shall be permitted to be 
threaded with dies specifically designed for plastic pipe. Ap- 
proved thread lubricant or tape shall be apphed on the male 
threads only. 

705.15 VfitrBlSed clay. Joints between vitrified clay pipe or fit- 
tings shall be made with an elastomeric seal conforming to 

ASTM C 425, ASTM C 1 173 or CAN/CSA-B602. 

705.16 JoMits toetweem dnfferemi maternals. Joints between dif- 
ferent piping materials shall be made with a mechanical joint of 

the compression or mechanical-sealing type conforming to n 
ASTM C 1173, ASTM C 1460orASTMC 1461. Connectors and U 
adapters shall be approved for the application and such joints shall 
have an elastomeric seal conforming to ASTM C 425, ASTM C 
443,ASTMC564, ASTM C1440, ASTM D 1869, ASTM F 477, U 
CAN/CSA A257.3M orCAN/CSA B602, or as required in Sec- ^ 
tions 705.16.1 through 705.16.5. Joints between glass pipe and 
other types of materials shall be made with adapters having a TFE 
seal. Joints shall be installed in accordance with the manufac- 
turer's instructions. 

705.16.1 Copper or copper-alloy titiitonmg to cast-irom huib 
pipe. Joints between copper or copper-alloy tubing and 
cast-iron hub pipe shall be made with a brass ferrule or com- 
pression joint. The copper or copper-alloy tubing shall be 
soldered to the ferrule in an approved manner, and the fer- 
rule shall be joined to the cast-iron hub by a caulked joint or 
a mechanical compression joint. 

705.16.2 Copper or copper-alloy itiiiibmg to galvamnzed 
steel psp®. Joints between copper or copper-alloy tubing 
and galvanized steel pipe shall be made with a brass con- 
verter fitting or dielectric fitting. The copper tubing shall be 
soldered to the fitting in an approved manner, and the fitting 
shall be screwed to the threaded pipe. 

705.16.3 Cast-nroM pnpe to galvamized steel or brass pipe. 
Joints between cast-iron and galvanized steel or brass pipe 
shall be made by either caulked or threaded joints or witii an 
approved adapter fitting. 



Joints between different grades of plastic pipe or between 
plastic pipe and other piping material shall be made with an 
approved adapter fitting. Joints between plastic pipe and 
cast-iron hub pipe shall be made by a caulked joint or a me- 
chanical compression joint. 



1. Joints be- 
tween lead pipe and other piping material shall be made by a 
wiped joint to a caulking ferrule, soldering nipple, or bush- 
ing or shall be made with an approved adapter fitting. 



Joints be- 
tween glass pipe and other types of materials shall be made 
with adapters having a TFE seal and shall be installed in ac- 
cordance with the manufacturer's instmctions. 



Joints between stainless steel drainage systems and 
other piping materials shall be made with approved me- 
chanical couplings. 



55 



7§S.17 Drainage §Mp Joints, Slip joints shall comply with Sec- 
tion 405.8. 

705ol8 CaelldEg ferrMleSo Ferrules shall be of red brass and 
shall be in accordance with Table 705. 1 8. 

TABLE705.il® 



PIPE 

SIZES 

(Bfiehes) 


SNSIDE 

DJAMETER 

(irtehas) 


LENGTH 
(inches) 


WEIGHT 
EACH 


2 


v. 


4V, 


1 pound 


3 


vu 


4V, 


1 pound 12 ounces 


4 


4'/, 


4% 


2 pounds 8 ounces 



For SI: 1 inch = 25.4 mm, 1 ounce = 28.35 g, 1 pound = 0.454 kg. 



7®5ol9 SoMerieg bissliings. Soldering bushings shall be of red 
brass and shall be in accordance with Table 705. 19. 



TABLE 705.19 
SOLDERING BUSHWG SPECIF8CAT80MS 


PIPE SIZES 
(inches) 


Ml^5lMUly^ wejght 

EACH 


I'A 


6 ounces 


\% 


8 ounces 


2 


14 ounces 


2'/, 


1 pound 6 ounces 


3 


2 pounds 


4 


3 pounds 8 ounces 



For SI: I inch = 25.4 mm, 1 ounce = 28.35 g, 1 pound = 0.454 kg. 

7(DSo20 Staimkss steel draimage systems. O-ring joints for stain- 
less steel drainage systems shall be made with an approved 
elastomeric seal. 



7(06.1 CffliLffiectnons amd ctiamges m. directI©rao All connections 
and changes in direction of the sanitary drainage system shall 
be made with approved drainage fittings. Connections between 
drainage piping and fixtures shall conform to Section 405. 



y.2 ObstructioHs. The fittings shall not have ledges, shoul- 
ders or reductions capable of retarding or obstructing flow in 
the piping. Threaded drainage pipe fittings shall be of the re- 
cessed drainage type. 



ImstallatloE of ftttmgs. Fittings shall be installed to 
guide sewage and waste in the direction of flow. Change in di- 
rection shall be made by fittings installed in accordance with 
Table 706.3. Change in direction by combination fittings, side 
inlets or increasers shall be installed in accordance with Table 
706.3 based on the pattem of flow created by the fitting. Dou- 
ble sanitary tee patterns shall not receive the discharge of 



back-to-back water closets and fixtures or appliances with 
pumping action discharge. 

ExcepMom; Back-to-back water closet connections to dou- 
ble sanitary tees shall be permitted where the horizontal de- 
veloped length between the outlet of the water closet and the 
connection to the double sanitary tee pattem is 18 inches 
(457 mm) or greater. 

TABLE 706.3 



FJTriMGS FOR CHAWGE IM DSRECTlOiSI 


TYPE OF FlTTIiMG 
PATTERN 


CHAi^GE m DSRECTJOM 


Horizoinita! to 
vertieal 


Vertscaf to 
horkoritaS 


Horizontal to 
hortiontal 


Sixteenth bend 


X 


X 


X 


Eighth bend 


X 


X 


X 


Sixth bend 


X 


X 


X 


Quarter bend 


X 


X' 


x» 


Short sweep 


X 


x*" 


X' 


Long sweep 


X 


X 


X 


Sanitary tee 


x^ 


— 


— 


Wye 


X 


X 


X 


Combination wye 
and eighth bend 


X 


X 


X 



For SI: linch = 25.4mm. 

a. The fittings shall only be permitted for a 2-inch or smaller ifixture drain. 

b. Three inches or larger. 

c. For a limitation on double sanitary tees, see Section 706.3. 



PROHflBITED JOiWTS AND COWNECTiONS 

707.1 FroSiilblted joimts. The following types of joints and con- 
nections shall be prohibited: 

1. Cement or concrete joints. 

2. Mastic or hot-pour bituminous joints. 

3 . Joints made with fittings not approved for the specific in- 
stallation. 

4. Joints between different diameter pipes made with 
elastomeric rolling 0-rings. 

5. Solvent-cement joints between different types of plastic 
pipe. 

6. Saddle-type fittings. 



708,]1 Scope. This section shall govern the size, location, in- 
stallation and maintenance of drainage pipe cleanouts. 

70S.2 CleamioiiJit plugs. Cleanout plugs shall be bra^ss or plastic, 
or other approved materials. Brass cleanout plugs shall be uti- 
lized with metallic drain, waste and vent piping only, and shall 
conform to ASTM A 74, ASME Al 12.3.1 or ASME 



56 



2003 ISMTERMATBONAL PLUMBUNG CODE® 



Al 1 2.36.2M. Cleanouts with plate-style access covers shall be 
fitted with corrosion-resisting fasteners. Plastic cleanout plugs 
shall conform to the requirements of Section 702.4. Plugs shall 
have raised square or countersunk square heads. Countersunk 
heads shall be installed where raised heads are a trip hazard. 
Cleanout plugs with borosilicate glass systems shall be of boro- 
silicate glass. 



Cleanouts shall be located in accor- 
dance with Sections 708.3.1 through 708.3.5. 

TOS.Sol HorSsomttal draiiias watlnnm IbMnWEmgs. All horizon- 
tal drains shall be provided with cleanouts located not more 
than 100 feet (30 480 mm) apart. 



ag §ew©r§o Building sewers shall be provided 
with cleanouts located not more than 100 feet (30 480 mm) 
apart measured from the upstream entrance of the cleanout. 
For building sewers 8 inches (203 mm) and larger, manholes 
shall be provided and located not more than 200 feet (60 960 
mm) from the junction of the building drain and building 
sewer, at each change in direction and at intervals of not 
more than 400 feet (122 m) apart. Manholes and manhole 
covers shall be of an approved type. 



ige§ of darecitnoini. Cleanouts shall be installed 
at each change of direction of the building drain or horizon- 
tal waste or soil lines greater than 45 degrees (0.79 rad). 
Where more than one change of direction occurs in a run of 
piping, only one cleanout shall be required for each 40 feet 
(12 192 mm) of developed length of the drainage piping. 



A cleanout shall be provided at the 
base of each waste or soil stack. 



There shall be a cleanout near the junction of the building 
drain and the building sewer. The cleanout shall be either in- 
side or outside the building wall and shall be brought up to 
the fmished ground level or to the basement floor level. An 
approved two-way cleanout is allowed to be used at this lo- 
cation to serve as a required cleanout for both the building 
drain and building sewer. The cleanout at the junction of the 
building drain and building sewer shall not be required if the 
cleanout on a 3-inch (76 mm) or larger diameter soil stack is 
located within a developed length of 10 feet (3048 mm) of 
the building drain and building sewer connection. The mini- 
mum size of the cleanout at the junction of the building drain 
and building sewer shall comply with Section 708.7. 



, Manholes serving a building drain shall 
have secured gas-tight covers and shall be located in accor- 
dance with Section 708.3.2. 



ig. Cleanouts on concealed piping or 
piping under a floor slab or in a crawl space of less than 24 
inches (610 mm) in height or a plenum shall be extended 
through and terminate flush with the finished wall, floor or 
ground surface or shall be extended to the outside of the build- 
ing. Cleanout plugs shall not be covered with cement, plaster or 
any other permanent finish material. Where it is necessary to 
conceal a cleanout or to terminate a cleanout in an area subject 
to vehicular traffic, the covering plate, access door or cleanout 
shall be of an approved type designed and installed for this pur- 
pose. 



Every cleanout shall be installed to 
open to allow cleaning in the direction of the flow of the drain- 
age pipe or at right angles thereto. 



nmstaillatfiosio Cleanout openings shall not be 
utilized for the installation of new fixtures, except where ap- 
proved and where another cleanout of equal access and capac- 
ity is provided. 



70^.7 Mimlmiiam size. Cleanouts shall be the same nominal 
size as the pipe they serve up to 4 inches (102 mm). For pipes 
larger than 4 inches (102 mm) nominal size, the minimum size 
of the cleanout shall be 4 inches (102 mm). 



noes; 

1 . "F" trap connections with slip joints or ground joint con- 
nections, or stack cleanouts that are not more than one 
pipe diameter smaller than the drain served, shall be per- 
mitted. 

2. Cast-iron cleanout sizing shall be in accordance with ref- 
erenced standards in Table 702.4, ASTM A 74 for hub 
and spigot fittings or ASTM A 888 or CISPI 301 for 
hubless fittings. 



3. Cleanouts on 6-inch (153 mm) and smaller 
pipes shall be provided with a clearance of not less thanlS 
inches (457 mm) for rodding. Cleanouts on 8-inch (203 mm) 
and larger pipes shall be provided with a clearance of not less 
than 36 inches (914 mm) for rodding. 

l<Si^3 Access, Access shall be provided to all cleanouts. 



.1 Vsitaes for ifKtares, Drainage fixture unit values as 
given in Table 709.1 designate the relative load weight of dif- 
ferent kinds of fixtures that shall be employed in estimating the 
total load carried by a soil or waste pipe, and shall be used in 
connection with Tables 710.1(1) and 710.1(2) of sizes for soil, 
waste and vent pipes for which the permissible load is given in 
terms of fixture units. 



^cL Fixtures not hsted in 
Table 709. 1 shall have a drainage fixture unit load based on the 
outlet size of the fixture in accordance with Table 709.2. The 
minimum trap size for unlisted fixtures shall be the size of the 
drainage outlet but not less than 1.25 inches (32 mm). 



Drainage fixture unit values for continuous and semicontinu- 
ous flow into a drainage system shall be computed on the basis 
that 1 gpm (0.06 L/s) of flow is equivalent to two fixture units. 

7(Qi9,4 Values for imdirect waste receptor. The drainage fix- 
ture unit load, of an indirect waste receptor receiving the dis- 
charge of indirectly connected fixtures shall be the sum of the 
drainage fixture unit values of the fixtures that discharge to the 
receptor, but not less than the drainage fixture unit value given 
for the indirect waste receptor in Table 709. 1 or 709.2. 



1003 {WTERS^SATSOMAL PLUMB8WG CODE® 



57 



SANITARY DRAINAGE 



TABLE 709.1 
DRAINAGE FIXTURE UMITS FOR FIXTURES AND GROUPS 



FIXTURE TYPE 


DRAINAGE FIXTURE UNIT 
VALUE AS LOAD FACTORS 


yiNIMUM SIZE OF TRAP 
(inches) 


Automatic clothes washers, commerciar^ 


3 


2 


Automatic clothes washers, residential^ 


2 


2 


Bathroom group as defined in Section 202 (1 .6 gpf water closet/ 


5 


— 


Bathroom group as defined in Section 202 (water closet flushing 
greater than 1 .6 gpf)^ 


6 


— 


Bathtub*" (with or without overhead shower or whirpool 
attachments) 


2 


l'/2 


Bidet 


1 


IV, 


Combination sink and tray 


2 


IV, 


Dental lavatory 


1 


vu 


Dental unit or cuspidor 


1 


\% 


Dishwashing machine," domestic 


2 


iv, 


Drinking fountain 


Va 


r/4 


Emergency floor drain 





2 


Floor drains 


2 


2 


Kitchen sink, domestic 


2 


IV, 


Kitchen sink, domestic with food waste grinder and/or dishwasher 


2 


IV, 


Laundry tray (1 or 2 compartments) 


2 


IV, 


Lavatory 


1 


r/4 


Shower 


2 


IV, 


Sink 


2 


IV, 


Urinal 


4 


Noted 


Urinal, 1 gallon per flush or less 


T 


Noted 


Wash sink (circular or multiple) each set of faucets 


2 


IV, 


Water closet, flushometer tank, public or private 


4' 


Noted 


Water closet, private (1.6 gpf) 


3^ 


Noted 


Water closet, private (flushing greater than 1 .6 gpf) 


4« 


Noted 


Water closet, public (1.6 gpf) 


4« 


Note d 


Water closet, public (flushing greater than 1 .6 gpf) 


6* 


Noted 



For SI: 1 inch = 25.4 mm, 1 gallon = 3.785 L. 

a. For traps larger than 3 inches, use Table 709.2. 

b. A showerhead over a bathtub or whirlpool bathtub attachment does not increase the drainage fixture unit value. 

c. See Sections 709.2 through 709.4 for methods of computing unit value of fixtures not listed in this table or for rating of devices with intermittent flows. 

d. Trap size shall be consistent with the fixture outlet size. 

e. For the purpose of computing loads on building drains and sewers, water closets and urinals shall not be rated at a lower drainage fixture unit unless the lower val- 
ues are confirmed by testing. 

f For fixtures added to a dwelling unit bathroom group, add the DFU value of those additional fixtures to the bathroom group fixture count, 
g. See Section 406.3 for sizing requirements for fixture drain, branch drain, and drainage stack for an automatic clothes washer standpipe. 



58 



2003 INTERNATIONAL PLUMBING CODE® 



TABLE 709.2 
UMBTS FOK FIXTURE DRAINS OR TRAPI 



FIXTURE DRkm OR TRAP 
S!ZE (5rjch©s) 


DRAINAGE FKTURE UMIT 
VALUE 


iv. 


1 


iv, 


2 


2 


3 


2V, 


4 


3 


5 


4 


6 



For SI: 1 inch = 25.4 mm. 



DRAflMAC 



m 



710.1 MasimMiB fctare omM E®adl. The maximum number of 
drainage fixture units connected to a given size of building 
sewer, building drain or horizontal branch of the building drain 
shall be determined using Table 710.1(1). The maximum num- 
ber of drainage fixture units connected to a given size of hori- 
zontal branch or vertical soil or waste stack shall be determined 
using Table 710.1(2). 

710.1.1 Hoiri2(0>Mtal stack offf§eit§. Horizontal stack offsets 
shall be sized as required for building drains in accordance 
with Table 710.1(1), except as required by Section 711.4. 

71 §.L2 Vertical stack offsets. Vertical stack offsets shall be 
sized as required for straight stacks in accordance with Ta- 
ble 710.1 (2), except where required to be sized as a building 
drain in accordance with Section 711.1.1. 

71(01,2 Futiinre Oxtmires. Where provision is made for the future 
installation of fixtures, those provided for shall be considered 
in determining the required sizes of drain pipes. 

SEOTIOW 71111 

OFFSETS m ORADWAOE PMMQ M 

iUILDOMOS OF F8¥E STORDES O^ CiORE 

711.1 Horizoiiital toraimcli comEectioinis above or below vertE= 
cal stack offsets. If a horizontal branch connects to the stack 
within 2 feet (610 mm) above or below a vertical stack offset, 
and the offset is located more than four branch intervals below 
the top of the stack, the offset shall be vented in accordance 
with Section 915. 

711.1.1 Omissnom of vemts for vertical stack offsets. Vents 
for vertical offsets required by Section 711.1 shall not be re- 
quired where the stack and its offset are sized as a building 
drain [see Table 710.1(1), Column 5]. 

711.2 HoruoimtaE bramclhi commectaoims to IhioriOTimtal stack 
offsets. Where a horizontal stack offset is located more than 
four branch intervals below the top of the stack, a horizontal 
branch shall not connect within the horizontal stack offset or 
within 2 feet (610 mm) above or below such offset. 

711 .3 Morkoratall stack offsets. A stack with a horizontal offset 
located more than four branch intervals below the top of the 
stack shall be vented in accordance with Section 9 1 5 and sized 
as follows: 



1 . The portion of the stack above the offset shall be sized as 
for a vertical stack based on the total number of drainage 
fixture units above the offset. 

2. The offset shall be sized in accordance with Section 
710.1.1. 

3 . The portion of the stack below the offset shall be sized as 
for the offset or based on the total number of drainage 
fixture units on the entire stack, whichever is larger [see 
Table 710.1(2), Column 4]. 

711.3,1 OmnssBom of vents for IhorizoinitaD stack offsets. 
Vents for horizontal stack offsets required by Section 711.3 
shall not be required where the stack and its offset are one 
pipe size larger than required for a building drain [see Table 
710. 1(1), Column 5] and the entire stack and offset are not 
less in cross-sectional area than that required for a straight 
stack plus the area of an offset vent as provided for in Sec- 
tion 915. Omission of offset vents in accordance with this 
section shall not constitute approval of horizontal branch 
connections within the offset or within 2 feet (610 mm) 
above or below the offset. 

711.4 Offsets below lowest bramcti. Where a vertical offset 
occurs in a soil or waste stack below the lowest horizontal 
branch, change in diameter of the stack because of the offset 
shall not be required. If a horizontal offset occurs in a soil or 
waste stack below the lowest horizontal branch, the required 
diameter of the offset and the stack below it shall be determined 
as for a building drain in accordance with Table 710. 1( 1). 

SECTIOW ?12 
SyMPS AMD EJECTORS 



712.1 BMiMmg SMbdraims, Building subdrains that 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 sys- 
tem by automatic pumping equipment or other approved 
method. In other than existing structures, the sump shall not re- 
ceive drainage from any piping within the building capable of 
being discharged by gravity to the building sewer. 

712.2 Valves reqranredl, A check valve and full open valve, lo- 
cated on the discharge side of the check valve, shall be installed 
in the pump or ejector discharge piping between the pump or 
ejector and the gravity drainage system. Access shall be pro- 
vided to such valves. Such valves will be located above the 
sump cover required by Section 712.1 or, where the discharge 
pipe from the ejector is below grade, the valves shall be acces- 
sibly located outside the sump below grade in an access pit with 
a removable access cover. 



m In one- and two-family dwellings, only a check 
valve shall be required, located on the discharge piping from 
the sewage pump or ejector. 

712.3 Slump desagm. The sump pump, pit and discharge piping 
shall conform to the requirements of Sections 712.3.1 through 
712.3.5. 

712,3,1 Stump pMinnip. The sump pump capacity and head 
shall be appropriate to anticipated use requirements. 



2003 JMTERfMATJOMAL PLUfi/lBlNG CODE® 



Ti^BLE 710.1 (1) 
BUILDING DRA8NS AND SEWERS 



DBAMETER OF PJPE 
(iinch©s) 


MMIMUiya NUMBER OF DRAINAGE FIXTURE UN8TS GONMEeTED TO ANY PORTION OF THE 8USLDING 
DRAIN OR THE BUILDING SEWER, INCLUDING BRANCHES OF THE BUJLDING DRAIN^ 


Stop© per foos 


Vi6 mQh 


Va Inch 


V4 Inch 


Va inch 


IV. 


— 


— 


1 


1 


\% 


— 


— 


3 


3 


2 


— 


— 


21 


26 


2'/2 


— 


— 


24 


31 


3 


— 


36 


42 


50 


4 


— 


180 


216 


250 


5 


— 


390 


480 


575 


6 


— 


700 


840 


1,000 


8 


1,400 


1,600 


1,920 


2,300 


10 


2,500 


2,900 


3,500 


4,200 


12 


3,900 


4,600 


5,600 


6,700 


15 


7,000 


8,300 


10,000 


12,000 



FoT SI'. \ inch = 25.4 mm, 1 inch per foot = 83.3 mm/m. 

a. The minimum size of any building drain serving a water closet shall be 3 inches. 



TABLE 710.1(2) 
HORIZONTAL FIXTURE iRAWCHES AND STACKS 



DIAMETER OF 
PSPE (ioches) 


m 


AXIMUM NUMBER OF DRAtNAGE FIXTURE UNITS (dfy) 


Totaf f@ir hQfmmsA 
brasneh 


Stacks'' 


Total discharge 

ifnto on® bmnch 

interval 


Total for stack of 

fifur©© hmnch 
Intervals or D@s@ 


Total for stack 

Greater than three 

Brarjclh intervals 


IV, 


3 


2 


4 


8 


2 


6 


6 


10 


24 


2V, 


12 


9 


20 


42 


3 


20 


20 


48 


72 


4 


160 


90 


240 


500 


5 


360 


200 


540 


1,100 


6 


620 


350 


960 


1,900 


8 


1,400 


600 


2,200 


3,600 


10 


2,500 


1,000 


3,800 


5,600 


12 


2,900 


1,500 


6,000 


8,400 


15 


7,000 


Notec 


Notec 


Notec 



For SI: 1 inch = 25.4mm 

a. Does not include branches of the building drain. Refer to Table 7 1 0. 1(1 ). 

b. Stacks shall be sized based on the total accumulated connected load at each story or branch interval. As the total accumulated connected load decreases, stacks 
are permitted to be reduced in size. Stack diameters shall not be reduced to less than one-half of the diameter of the largest stack size required. 

c. Sizing load based on design criteria. 



712c3.2 Sttamp pit The sump pit shall be not less than 18 
inches (457 mm) in diameter and 24 inches (610 mm) deep, 
unless otherwise approved. The pit shall be accessible and lo- 
cated such that all drainage flows into the pit by gravity. The 
sump pit shall 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 gas-tight removable cover adequate to support 
anticipated loads in the area of use. The sump pit shall be 
vented in accordance with Chapter 9. 

712»3.3 Bnsclhairge psptraig. Discharge piping shall meet the 
requirements of Section 712.2. 

71 2o3.4 Maximum eMeemt leveL The effluent level control 
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. 

712o3oS Ejector coEeecHicim to tSie dranmag® systomo 
Pumps connected to the drainage system shall connect to the 
building sewer or shall connect to a wye fitting in the build- 
ing drain a minimum of 1 feet (3048 mm) from the base of 
any soil stack, waste stack or fixture drain. Where the dis- 
charge line connects into horizontal drainage p iping, the 
connector shall be made through a wye fitting into the top of 
the drainage piping. 

712o4 Sewagopimmps aimdl sewag© ejectorso A sewage pump or 
sewage ejector shall automatically discharge the contents of 
the sump to the building drainage system. 

712.4ol MaceraMmg tmlet §y§teinni§„ Macerating toilet sys- 
tems shall comply with CSAB45.9 or ASME Al 12.3.4 and 
shall be installed in accordance with the manufacturer's in- 
stallation instructions. 

712o4„2 Capadityo A sewage pump or sewage ejector shall 
have the capacity and head for the application requirements. 
Pumps or ejectors that receive the discharge of water closets 
shall be capable of handling spherical solids with a diameter 
of up to and including 2 inches (51 mm). Other pumps or 
ejectors shall be capable of handling spherical solids with a 
diameter of up to and including 1 inch (25.4 mm). The mini- 
mum capacity of a pump or ejector based on the diameter of 
the discharge pipe shall be in accordance with Table 
712.4.2. 



1 . Grinder pumps or grinder ejectors that receive the dis- 
charge of water closets shall have a minimum discharge 
opening of 1.25 inches (32 mm). 

2. Macerating toilet assemblies that serve single water clos- 
ets shall have a minimum discharge opening of 0.75 inch 
(19 mm). 



Ih^EALTO ©ARE PLyC^BIM© 

713p1 ScffipSo This section shall govern those aspects of health 
care plumbing systems that differ from plumbing systems in 
other structures. Health care plumbing systems shall conform 
to this section in addition to the other requirements of this code. 
The provisions of this section shall apply to the special devices 



and equipment installed and maintained in the following occu- 
pancies: nursing homes; homes for the aged; orphanages; 
infirmaries; first aid stations; psychiatric facilities; clinics; pro- 
fessional offices of dentists and doctors; mortuaries; educa- 
tional facilities; surgery, dentistry, research and testing 
laboratories; establishments manufacturing pharmaceutical 
drugs and medicines; and other structures with similar appara- 
tus and equipment classified as plumbing, 

m@LE 712.4.2 



OR SEWAGE EJECTOI^ 



DIAMETER OF THE 

DBSCHARGE PIPE 

(Sfnelhi©©) 


OAPACITY OF PUMP 
OR EJECTOR (gpm) 


2 


21 


2% 


30 


3 


46 



For SI:1 inch = 25.4 mm, 1 gallon per minute = 3.785 L/m. 



713o2 Bedpaini wasliers amd cMmkal smkSo Bedpan washers 
and clinical sinks shall connect to the drainage and vent system 
in accordance with the requirements for a water closet. Bedpan 
washers shall also coimect to a local vent. 



, All sterilizers, steamers and condensers 
shall discharge to the drainage through an indirect waste pipe 
by means of an air gap. Where a battery of not more than three 
sterilizers discharges to an individual receptor, the distance be- 
tween the receptor and a sterilizer shall not exceed 8 feet (2438 
mm). The indirect waste pipe on a bedpan steamer shall be 



713 A Ysaisuum system sitailBdJfflio Ready access shall be provided 
to vacuum system station receptacles. Such receptacles shall be 
built into cabinets or recesses and shall be visible. 

71305 Boiitk systom« Vacuum (fluid suction) systems intended 
for collecting, removing and disposing of blood, pus or other 
fluids by the bottle system shall be provided with receptacles 
equipped with an overflow prevention device at each vacuum 
outlet station. 

71306 Ceimltral disposal system eqmiflpmeinil All central vac- 
uum (fluid suction) systems shall provide continuous service. 
Systems equipped with collecting or control tanks shall pro- 
vide for draining and cleaning of the tanks while the system is 
in operation. In hospitals, the system shall be connected to the 
emergency power system. The exhausts from a vacuum pump 
serving a vacuum (fluid suction) system shall discharge sepa- 
rately to open air above the roof 



o7 Cemtral vacwiMm or dnsposal systems. Where the waste 
from a central vacuum (fluid suction) system of the baromet- 
ric-lag, collection-tank or bottle-disposal type is connected to 
the drainage system, the waste shall be directly connected to 
the sanitary drainage system through a trapped waste. 

713.7ol Fnpmgo The piping of a central vacuum (fluid suc- 
tion) system shall be of corrosion-resistant material with a 
smooth interior surface. A branch shall not be less than 0.5- 
inch (12.7 mm) nominal pipe size for one outlet and shall be 
sized in accordance with the number of vacuum outlets. A 



mm mTEHMMm^AL plumbimg code® 



main shall not be less than 1-inch (25 mm) nominal pipe 
size. The pipe sizing shall be increased in accordance with 
the manufacturer's instructions as stations are increased. 



713.7.2 Vellocflty. The velocity of airflow in a central vac- 
uum (fluid suction) system shall be less than 5,000 feet per 
minute (25 m/s). 

713.8 Veirt comiiniecticjinis pirolhilbflltedlo Connections between lo- 
cal vents serving bedpan washers or sterilizer vents serving 
sterilizing apparatus and normal sanitary plumbing systems are 
prohibited. Only one type of apparatus shall be served by a lo- 
cal vent. 



Bedpan 

washers shall be vented to open air above the roof by means of 
one or more local vents. The local vent for a bedpan washer 
shall not be less than a 2-inch-diameter (5 1 mm) pipe. A local 
vent serving a single bedpan washer is permitted to drain to the 
fixture served. 



713.9.1 MpIMple flimstalDailioinis. Where bedpan washers are 
located above each other on more than one floor, a local vent 
stack is permitted to be installed to receive the local vent on 
the various floors. Not more than three bedpan washers shall 
be connected to a 2-inch (5 1 mm) local vent stack, not more 
than six to a 3-inch (76 mm) local vent stack and not more 
than 1 2 to a 4-inch ( 1 02 mm) local vent stack. In multiple in- 
stallations, the connections between a bedpan washer local 
vent and a local vent stack shall be made with tee or tee- wye 
sanitary pattern drainage fittings installed in an upright po- 
sition. 



requiredl. The bottom of the local vent stack, 
except where serving only one bedpan washer, shall be 
drained by means of a trapped and vented waste connection 
to the sanitary drainage system. The trap and waste shall be 
the same size as the local vent stack. 

713.9,3 Trap seal mamteiniainice. A water supply pipe not 
less than 'A inch (6.4 mm) in diameter shall be taken from 
the flush supply of each bedpan washer on the discharge or 
fixture side of the vacuum breaker, shall be trapped to form 
not less than a 3-inch (76 mm) water seal, and shall be con- 
nected to the local vent stack on each floor. The water sup- 
ply shall be installed so as to provide a supply of water to the 
local vent stack for cleansing and drain trap seal mainte- 
nance each time a bedpan washer is flushed. 

ll3oW Siterilkeir veiniits amd stacks. Multiple installations of 
pressure and nonpressure sterilizers shall have the vent con- 
nections to the sterilizer vent stack made by means of inverted 
wye fittings. Access shall be provided to vent connections for 
the purpose of inspection and maintenance. 

713.10.1 Drainage. 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. 

713.11 Stenlker vent stack snzes. Sterilizer vent stack sizes 
shall comply with Sections 713.11.1 through 713.11.4. 

713.11,1 Bedpaim steamers. The minimum size of a steril- 
izer vent serving a bedpan steamer shall be 1 .50 inches (38 



mm) in diameter. Multiple installations shall be sized in ac- 
cordance with Table 713.11.1. 

TABLE 713.111.1 
STACK SEES FOR BEDPAIM STEAMERS 

AND BOIUMG-TYPE STERILIZERS 
(WumbeiT of ComiiKsetoorss of Vanous Sizes 

terillizer Veirjt Stacks) 



STACK SIZE 
(mches) 


CONNECTION SIZE 


IV2" 




2" 


w 


1 


or 





T 


2 


OT 


1 


2" 


1 


and 


1 


3^ 


4 


or 


2 


3^ 


2 


and 


2 


4" 


8 


or 


4 


4" 


4 


and 


4 



For SI: 1 inch = 25.4 mm. 

a. Total of each size. 

b. Combination of sizes. 



Sterilizers. The minimum size of a 
sterilizer vent stack shall be 2 inches (5 1 mm) in diameter 
where serving a utensil sterilizer and 1.5 inches (38 mm) in 
diameter where serving an instrument sterilizer. Combina- 
tions of boiling-type sterilizer vent connections shall b e 
sized in accordance with Table 713.11.1. 

713.11.3 PressMire sterilkeirs. Pressure sterilizer vent 
stacks shall be 2.5 inches (64 mm) minimum. Those serving 
combinations of pressure sterilizer exhaust connections 
shall be sized in accordance with Table 713. 1 1 .3. 

713.11 .4 Pressmre iestrumeimt waslher sterilizer sizes. The 
minimum diameter of a sterilizer vent stack serving an in- 
strument washer sterilizer shall be 2 inches (51 mm). Not 
more than two sterilizers shall be installed on a 2-inch (5 1 
mm) stack, and not more than four sterilizers shall be in- 
stalled on a 3-inch (76 mm) stack. 



SECTIOW ?M 
COHPyTEBlllED DRAIWAGE DESKQINl 

714,1 Besigim olF draieage system. The sizing, design and lay- 
out of the drainage system shall be permitted to be designed by 
approved computer design methods. 



714.2 Load on dranmage system. The load shall be computed 
from the simultaneous or sequential discharge conditions from 
fixtures, appurtenances and appliances or the peak usage de- 
sign condition. 

714.2.1 Fixture disclharge pnofflles. The discharge profiles 
for flow rates versus time from fixtures and appliances shall 
be in accordance with the manufacturer's specifications. 

714.3 Selections olT drainage pipe sizes. Pipe shall be sized to 
prevent full-bore flow. 



714.3.1 Selecting pipe wall roughness. Pipe size calcula- 
tions shall be conducted with the pipe wail roughness factor 



62 



2003 IMTERMATIONAL PLUMBING CODE® 



(k,), in accordance with the manufacturer's specifications 
and as modified for aging roughness factors with deposits 
corrosion. 



TOOLE 7113.11 11.3 
SmOIC SEES FOR PRESSURE STERIUZERI 
Sumber ©f Conneeft'oinis ®lf Vsr8@ys Sizes 



SimK SIZE 
(onolhea) 


COMMECTJOM SIZE 


%" 


1" 


ft," 


■jVa" 


iv/ 


3 or 


2 or 


1 


— 


IV." 


2 and 


1 


— 


— 


2" 


6 or 


3 or 


2 or 


1 


2" 


3 and 


2 


— 


— 


2' 


2 and 


1 and 


1 


— 


2" 


1 and 


1 and 


— 


1 


3^ 


15 or 


7 or 


5 or 


3 


3" 


I and 


1 and 
5 and 


2 and 


2 
1 



For SI: 1 inch = 25.4 mm. 

a. Total of each size. 

b. Combination of sizes. 



"7143.2 SDope off lln©ri2oeteI dwmm&ge pipanLg. Horizontal 
drainage piping shall be designed and installed at slopes in 
accordance with Table 704. 1 . 



71 Sol Sewage btckffloWo Where the flood level rims of plumb- 
ing fixtures are below the elevation of the manhole cover of the 
next upstream manhole in the public sewer, such fixtures shall 
be p rotected by a backwater valve installed in the building 
drain, branch of the building drain or horizontal branch serving 
such fixtures. Plumbing fixtures having flood level rims above 
the elevation of the manhole cover of the next upstream man- 
hole in the public sewer shall not discharge through a back- 
water valve. 



All bearing parts of backwater valves shall be 
of corrosion-resistant material. Backwater valves shall comply 

withASMEA112.14.1,CSAB181.1orCSAB181.2. 

71S<,3 Seal. Backwater valves shall be so constmcted as to pro- 
vide a mechanical seal against backflow. 

715.4 Diametefi-o Backwater valves, when fully opened, shall 
have a capacity not less than that of the pipes in which they are 
installed. 

715.5 Location, Backwater valves shall be installed so that ac- 
cess is provided to the working parts for service and repair. 



aO03 BMTERSMATSOIMAL PLUMBIINQ CODE® 



M 2003 INTEBNAT80NAL PLUMBING CODE® 






)T[ 



o 



SECTIOM 8©1 

SOLI Scope. This chapter shall govern matters concerning in- 
direct waste piping and special wastes. This chapter shall fur- 
ther control matters concerning food-handling establishments, 
sterilizers, clear- water wastes, swimming pools, methods of pr- 
oviding air breaks or air gaps, and neutralizing devices for cor- 
rosive wastes. 



a. All devices, appurtenances, appliances and 
apparatus intended to serve some special function, such as ster- 
ilization, distillation, processing, cooling, or storage of ice or 
foods, and that discharge to the drainage system, shall be pro- 
vided with protection against backflow, flooding, fouling, con- 
tamination and stoppage of the drain. 

SECTIOM Bm 

mmBECiwmwB 



M2A Wlhere reqjpnredl^ Food-handling equipment and 
clear-water waste shall discharge through an indirect waste pipe 
as specified in Sections 802. 1 . 1 through 802. 1 .7. AH health-care 
related fixtures, devices and equipment shall discharge to the 
drainage system through an indirect waste pipe by means of an 
air gap in accordance with this chapter and Section 713.3. Fix- 
tures not required by this section to be indirectly connected shall 
be directly connected to the plumbing system in accordance with 
Chapter 7. 

8(D)2.L1 Food toamdlilnimg. Equipment and fixtures utilized for 
the storage, preparation and handling of food shall dis- 
charge through an indirect waste pipe by means of an air 
gap. 

802olo2 Floor draims m food storage areas. Floor drains lo- 
cated within walk-in refiigerators or freezers in food service 
and food establishments shall be indirectly connected to the 
sanitary drainage system by means of an air gap. Where a 
floor drain is located within an area subject to freezing, the 
waste line serving the floor drain shall not be trapped and 
shall indirectly discharge into a waste receptor located out- 
side of the area subject to fi'eezing. 

ExcepMomi: Where protected against backflow by a back- 
water valve, such floor drains shall be indirectly con- 
nected to the sanitary drainage system by means of an air 
break or an air gap. 



M20I3 FoilaMe deair-wateir waste. Where devices 
equipment, such as sterilizers and relief valves, discharge po- 
table water to the building drainage system, the discharge 
shall be through an indirect waste pipe by means of an air gap. 

8(ID2,L4 SwnmmDmg pools. Where wastewater from swim- 
ming pools, backwash from filters and water from pool deck 
drains discharge to the building drainage system, the dis- 
charge shall be through an indirect waste pipe by means of 
an air gap. 



Where devices 
and equipment such as process tanks, filters, drips and boil- 
ers discharge nonpotable water to the building drainage sys- 
tem, the discharge shall be through an indirect waste pipe by 
means of an air break or an air gap. 



img macMimes, Domestic 
dishwashing machines shall discharge indirectly through an 
air gap or air break into a standpipe or waste receptor in ac- 
cordance with Section 802.2, or discharge into a 
wye-branch fitting on the tailpiece of the kitchen sink or the 
dishwasher connection of a food waste grinder. The waste 
line of a domestic dishwashing machine discharging into a 
kitchen sink tailpiece or food waste grinder shall connect to 
a deck-mounted air gap or the waste line shall rise and be se- 
curely fastenend to the underside of the sink rim or counter. 



S(D)2.L7 Commerdal dislhwaslhiBinig maclhimes. The dis- 
charge from a commercial dishwashing machine shall be 
through an air gap or air break into a standpipe or waste re- 
ceptor in accordance with Section 802.2. 



All indirect waste piping shall discharge 
through an air gap or air break into a waste receptor or 
standpipe. Waste receptors and standpipes shall be trapped and 
vented and shall connect to the building drainage system. All 
indirect waste piping that exceeds 2 feet (610 mm) in devel- 
oped length measured horizontally, or 4 feet (1219 mm) in total 
developed length, shall be trapped. 

S©2o2.1 Afr gap. The air gap between the indirect waste 
pipe and the flood level rim of the waste receptor shall be a 
minimum of twice the effective opening of the indirect 
waste pipe. 

S(ID2.2.2 Air toreak. An air break shall be provided between 
the indirect waste pipe and the trap seal of the waste receptor 
or standpipe. 

M23 Waste receptors. Every waste receptor shall be of an ap- 
proved type. A removable strainer or basket shall cover the 
waste outlet of waste receptors. Waste receptors shall be in- 
stalled in ventilated spaces. Waste receptors shall not be in- 
stalled in bathrooms or toilet rooms or in any inaccessible or 
unventilated space such as a closet or storeroom. Ready access 
shall be provided to waste receptors. 

S®2.3.1 Size off receptors. A waste receptor shall be sized 
for the maximimi discharge of all indirect waste pipes 
served by the receptor. Receptors shall be installed to pre- 
vent splashing or flooding. 



waste receptors. Waste receptors shall 
be permitted in the form of a hub or pipe extending not less 
than 1 inch (25.4 mm) above a water- impervious floor and 
are not required to have a strainer. 

5(ID2.4 Stainidpipes. Standpipes shall be individually trapped, 
standpipes shall extend a minimum of 1 8 inches (457 mm) and 



2003 IMTERWATIOMAL PLOMBHWG CODE® 



1WD8RECT/SPEC8AL WASTE 



a maximum of 42 inches (1066 mm) above the trap weir. Ac- 
cess shall be provided to all standpipes and drains for rodding. 

SECTION 803 
SPECIAL WASTES 

S§3ol Wastewater temperatiare. Steam pipes shaD not con- 
nect to any part of a drainage or plumbing system and water 
above 140°F (60 °C) shall not be discharged into any part of a 
drainage system. Such pipes shall discharge into an indirect 
waste receptor connected to the drainage system, 

§©3.2 NemtrallaKg device reqiaired for corrosive wastes. Cor- 
rosive liquids, spent acids or other harmful chemicals that destroy 
or injure a drain, sewer, soil or waste pipe, or create noxious or 
toxic fumes or interfere with sewage treatment processes shall not 
be discharged into the plumbing system without being thoroughly 
diluted, neutralized or treated by passing through an approved di- 
lution or neutralizing device. Such devices shall be automatically 
provided with a sufficient supply of diluting water or neutralizing 
medium so as to make the contents noninjurious before discharge 
into the drainage systmi. The nature of the corrosive or harmful 
waste and the method of its treatment or dilution shall be approved 
prior to installation. 

8(033 System design. A chemical drainage and vent system 
shall be designed and installed in accordance with this code. 
Chemical drainage and vent systems shall be completely sepa- 
rated from the sanitary systems. Chemical waste shall not dis- 
charge to a sanitary drainage system until such waste has been 
treated in accordance with Section 803.2. 



SECTIOM 804 
MATERIALS, JOINTS AND COPINECTIOMS 

g©4,l General. The materials and methods utilized for the con- 
struction and installation of indirect waste pipes and systems 
shall comply with the applicable provisions of Chapter 7. 



®@ 



2003 INTERhiATIONAL PLUMBING CODE® 



¥EMTS 



SiOTBOM 9011 
QEMEBhL 

901.1 Scope, The provisions of this chapter shall govern the 
materials, design, construction and installation of vent sys- 
tems. 

SXUl .2 Trap seaE pirottectiom. The plumbing system shall be pro- 
vided with a system of vent piping that will permit the admis- 
sion or emission of air so that the seal of any fixture trap shall 
not be subjected to a pneumatic pressure differential of more 
than 1 inch of water column (249 Pa). 

901. 2ol Veratieg reqimiredlo Every trap and trapped fixture 
shall be vented in accordance with one of the venting meth- 
ods specified in this chapter. 

901.3 Clhiemkal waste vemit sysUemni. The vent system for a 
chemical waste system shall be independent of the sanitary 
vent system and shall terminate separately through the roof to 
the open air. 

901.4 Use Mmitatnoniis. The plumbing vent system shall not be 
utilized for purposes other than the venting of the plumbing 
system. 

901 .§ Tests, The vent system shall be tested in accordance with 
Section 312. 

901.6 Emgweeredl systems. Engineered venting systems shall 
conform to the provisions of Section 918. 



902.1 Vemits, The materials and methods utilized for the con- 
struction and installation of venting systems shall comply with 
the applicable provisions of Section 702. 

902.2 Slieet copper. Sheet copper for vent pipe flashings shall 
conform to ASTM B 1 52 and shall weigh not less than 8 ounces 
per square foot (2.5 kg/m^). 

902.3 Slhieet lead. Sheet lead for vent pipe flashings shall weigh 
not less than 3 pounds per square foot (15 kg/m^) for 
field-constructed flashings and not less than 2.5 pounds per 
square foot (12 kg/m^) for prefabricated flashings. 



VEWT STACCCS AMB ST-^O&C ViMTS 

903.1 Stock reqojred. Every building in which plumbing is in- 
stalled shall have at least one stack the size of which is not less 
than one-half of the required size of the building drain. Such 
stack shall run undiminished in size and as directly as possible 
from the building drain through to the open air or to a vent 
header that extends to the open air. 

903,1,1 Cooimecilioini to draieage system, A vent stack shall 
connect to the building drain or to the base of a drainage 
stack in accordance with Section 903.4. A stack vent shall be 
an extension of the drainage stack. 



A vent stack shall be required for 
every drainage stack that is five branch intervals or more. 

903.3 Vemt termmatnoe. Every vent stack or stack vent shall 
extend outdoors and terminate to the open air. 



, Every vent stack shall connect 
to the base of the drainage stack. The vent stack shall connect at 
or below the lowest horizontal branch. Where the vent stack 
connects to the building drain, the connection shall be located 
downstream of the drainage stack and within a distance of 10 
times the diameter of the drainage stack. 

903,5 Veimt headers. Stack vents and vent stacks connected 
into a common vent header at the top of the stacks and extend- 
ing to the open air at one point shall be sized in accordance with 
the requirements of Section 916.1. The number of fixture units 
shall be the sum of all fixture units on all stacks connected 
thereto, and the developed 1 ength shall be the longest vent 
length from the intersection at the base of the most distant stack 
to the vent terminal in the open air, as a direct extension of one 
stack. 



All open vent pipes that extend through 
a roof shall be terminated at least [NUMBER] inches (mm) above 
the roof, except that where a roof is to be used for any purpose 
other than weather protection, the vent extensions shall be run 
at least 7 feet (2134 mm) above the roof 



Where the 97. 5 -percent value for outside 
design temperature is ° F (- 1 8 ° C) or less, every vent extension 
through a roof or wall shall be a minimum of 3 inches (76 mm) 
in diameter. Any increase in the size of the vent shall be made 
inside the structure a minimum of 1 foot (305 mm) below the 
roof or inside the wall. 



Flaslhmgs. The juncture of each vent pipe with the roof 
line shall be made water tight by an approved flashing. 



se. Vent terminals shall not be used as a flag 
pole or to support flag poles, television aerials or similar items, 
except when the piping has been anchored in an approved man- 
ner. 



An open vent terminal from 
a drainage system shall not be located directly beneath any 
door, openable window, or other air intake opening of the 
building or of an adjacent building, and any such vent terminal 
shall not be within 1 feet (3048 mm) horizontally of such an 
opening unless it is at least 2 feet (610 mm) above the top of 
such opening. 



Vent terminals extending 
through the wall shall terminate a minimum of 10 feet (3048 
mm) from the lot line and 10 feet (3048 mm) above average 
ground level. Vent terminals shall not terminate under the over- 
hang of a structure with soffit vents. Side wall vent terminals 



2003 IWTERMATIOMAL PLUMBING CODE® 



S7 



VENTI 



shall be protected to prevent biids or rodents 
blocking the vent opening. 



entering or 



mi 



97.5-percent value for outside design temperature is less thsm 
0°F (-18°C), vent pipes installed on the es 
ture shall be protected against freezing by 



9<^5A CoEMiiedidiiimo All individual, branch \ 
connect to a vent stack, stack vent, air ; 
tend to the open air. 

9([DS«2 GradOo All vent and branch vent pipes shall be so graded 
and connected as to drain back to the drainss 



9(D)S3 VeimS comimecilioiffl to dliraniniag® systemnio Every < 
connecting to a horizontal drain shall connect above thii 
line of the horizontal drain pipe. 

905.4 Vertkal rnss ®f vsimt Every dry vent shall rise v 
to a minimum of 6 inches (152 mm) above the flood level 
the highest trap or trapped fixture being vented. 

m Vents for interceptors located outdoors. 



above flstaireSo A connection 
pipe and a vent stack or stack vent shall be 
inches (1 52 mm) above the flood level rim 
ture served by the vent. Horizontal vent 
vents, relief vents or loop vents shall be 
mm) above the flood level rim of the highest fixture served, 

905.6 Vemtt f©r fnator© IfDSttiuiireSo Where the drainage piping h 
been roughed-in for future fixtures, a rough-in connection foj 
vent shall be installed. The vent size shall be not less than on 
half the diameter of the rough-in drain to be served. 
rough-in shall connect to the vent system, or shall be 
other means as provided for in this chapter. The co: 
shall be identified to indicate that it is a vent. 

SE©TD©1N] iOS 



906ol Bnstoimc© of ttirap firomni vsmt Each fixture 
a protecting vent located so that the slope and 
length in the fixture drain from the trap weir to 
are within the requirements set forth in Table 



except where serving a fixture with i 
closets, shall cormect above the weir of the 
vented. 



3 Crowe veisL A vent shall not be 
diameters of the trap weir. 



within two 



mm 

S>^1A luMmdm&l veet perEnniMedlo Each trap and trapped fix- 
ture is permitted to be provided with an individual vent. TThe in- 
dividual vent shall connect to the 
trapped fixture being vented. 



M 


MBftflyftfl DBSmWCE OF FOCTOR 
TRAP FROM ¥EWT 


s 


SIZE OF 


SIZE OF 

FilCTURE 

DRMW 

(omieh©®) 


SLOPE 
(oinieh p)®ir 


DlSmMCE 
FROM TRAP 


IV, 


IV. 


V4 


3V, 


I 'A 


IV, 


V4 


5 


1% 


IV, 


V4 


5 


IV, 


2 


V4 


6 


2 


2 


V, 


6 


3 


3 


v« 


10 


4 


4 


Vs 


12 


ForSI: 1 inch =25.4 mm, 1 foot = 304. 8 mm, 1 inch per foot =83.3 mm/m. 



9(!D8oll 
permii 



1 vemllo An individual vent is 
to vent two traps or trapped fixtures as a common 
traps or trapped fixtures being common vented shall 
on the same floor level. 



Where the fixture drains 
being common vented connect at the same level, the vent con- 
nection shall be at the interconnection of the fixtimre drains or 
downstream of the interconnection. 



, Where the fixture drains 
connect at different levels, the vent shall connect as a vertical 
extension of the vertical drain. The vertical drainpipe connect- 
ing the two fixture drains shall be considered the vent for the 
lower fixture drain, and shall be sized in accordance with Table 
.3. The upper fixture shall not be a water closet. 



€OMMOM VEWT SDZI 



PIPE SIZE (if^ehes) 


MA]tTOUM DISCHARGE 

FROM yPPER PICTURE 

DRAIN (dfy) 


IV, 


1 


2 


4 


2V2 to 3 


6 



For SI: 1 inch = 25.4 mm. 



WET ¥EMTIW© 

ol Wet vsnBtt permllttedlo Any combination of fixtures 
within two bathroom groups located on the same floor level are 
permitted to be vented by a wet vent. The wet vent shall be con- 
sidered the vent for the fixtures and shall extend fi:om the con- 
nection of the dry vent along the direction of the flow in the 
drain pipe to the most downstream fixture drain connection to 



VEMTi 



the horizontal branch drain. Only the fixtures within the bath- 
room groups shall connect to the wet- vented horizontal branch 
drain. Any additional fixtures shall discharge downstream of 
the wet vent. 



mm SIZE 



hi J Veirtkaill wet vemL Any combination of fixtures with- 
in two bathroom groups located on the same floor level is per- 
mitted to be vented by a vertical wet vent. The vertical wet 
vent shall extend from the connection to the dry vent down to 
the lowest fixture drain connection. Each fixture shall con- 
nect independently to the vertical wet vent. Water closet 
drains shall connect at the same elevation. Other fixture 
drains shall connect above or at the same elevation as the wa- 
ter closet fixture drains. The dry vent connection to the verti- 
cal wet vent shall be an individual or common vent serving 
one or two fixtures. 



The dry vent connection to the wet 
vent shall be an individual vent or common vent to the lavatory, 
bidet, shower or bathtub. The dry vent shall be sized based on 
the largest required diameter of pipe within the wet vent system 
served by the dry vent. 

9&93 Sfe©. The wet vent shall be of a minimum size as speci- 
fied in Table 909.3, based on the fixture unit discharge to the 
wet vent. 

TABLE 909.3 
WET VEMT StZE 



WET VEMT PJPE 
SEE (isiehes) 


DRAINAGE FIXTURE 
UMIT LOAD (dfu) 


\% 


1 


2 


4 


2'A 


6 


3 


12 



For SI: 1 inch = 25.4 mm. 



jist permMtedl. A waste stack shall be con- 
sidered a vent for all of the fixtures discharging to the stack 
where installed in accordance with the requirements of this sec- 
tion. 

91(Qio2 Stock ii]ni§tolIaitiioim, The waste stack shall be vertical, and 
both horizontal and vertical offsets shall be prohibited. Every 
fixture drain shall connect separately to the waste stack. The 
stack shall not receive the discharge of water closets or urinals. 



t A stack vent shall be provided for the waste 
stack. The size of the stack vent shall be equal to the size of the 
waste stack. Offsets shall be permitted in the stack vent and 
shall be located at least 6 inches (152 mm) above the flood level 
of the highest fixture, and shall be in accordance with Section 
905.2. 



§ke. The waste stack shall be sized based on 
the total discharge to the stack and the discharge within a branch 
interval in accordance with Table 910.4. The waste stack shall 
be the same size throughout its length. 



STACK 

SEE 
(oinielhi©s) 


MAX8MUM NOMBER OF DRAINAGE 
FIXTURE UNITS (dfyj 


Tot^al diselhsiirg)© 
imito ©n© 


T@4®1 dlisehairge 
for staek 


IV, 


1 


2 


2 


2 


4 


2% 


No limit 


8 


3 


No limit 


24 


4 


No limit 


50 


5 


No limit 


75 


6 


No limit 


100 



For SI: 1 inch = 25.4 mm. 



SE©TB©M9111 
ODROyiT ¥EMTDM© 

91L1 CkcMflit vent peirmfitedo A maximum of eight fixtures 
connected to a horizontal branch drain shall be permitted to be 
circuit vented. Each fixture drain shall connect horizontally to 
the horizontal branch being circuit vented. The horizontal 
branch drain shall be classified as a vent from the most down- 
stream fixture drain connection to the most upstream fixture 
drain connection to the horizontal branch. 

91Llol Mmlitnpk circimnit-veinitedl toramclheso Circuit-vented 
horizontal branch drains are permitted to be connected to- 
gether. Each group of a maximum of eight fixtures shall be 
considered a separate circuit vent and shall conform to the 
requirements of this section. 



, The circuit vent connection shall be lo- 
cated between the two most upstream fixture drains. The vent 
shall connect to the horizontal branch and shall be installed in 
accordance with Section 905 . The circuit vent pipe shall not re- 
ceive the discharge of any soil or waste. 



§ke ®ff IhornzdJimtol bramclhio The maximum 
slope of the vent section of the horizontal branch drain shall be 
one unit vertical in 12 units horizontal (8-percent slope). The 
entire length of the vent section of the horizontal branch drain 
shall be sized for the total drainage discharge to the branch. 



91L3ol Sue off mmimMple circunit vqbL Each separate cir- 
cuit-vented horizontal branch that is interconnected shall be 
sized independently in accordance with Section 91 1.3. The 
downstream circuit- vented horizontal branch shall be sized 
for the total discharge into the branch, including the up- 
stream branches and the fixtures within the branch. 

911.4 ReMelf vemt A relief vent shall be provided for circuit- 
vented horizontal branches receiving the discharge of four or 
more water closets and connecting to a drainage stack that re- 
ceives the discharge of soil or waste from upper horizontal 
branches. 



gs 



911=4.1 Connection and imtallatnon. The relief vent shall 
connect to the horizontal branch drain between the stack and 
the most downstream fixture drain of the circuit vent. The 
relief vent shall be installed in accordance with Section 905 . 

911.4.2 Fisture drain or branch. The relief vent is permit- 
ted to be a fixture drain or fixture branch for fixtures located 
within the same branch interval as the circuit-vented hori- 
zontal branch. The maximum discharge to a relief vent shall 
be four fixture units. 



mBLE 912.3 
UE OF COMBIWATIOM DRAm AND VENT PM 



Fixtures, other than the cir- 
cuit-vented fixtures, are permitted to discharge to the horizon- 
tal branch drain. Such fixtures shall be located on the same 
floor as the circuit-vented fixtures and shall be either individu- 
ally or common vented. 



COMBiWATiON DRAIN AND VEMT SYSTEM 

912.1 Type off flxtureSo A combination drain and vent system 
shall not serve fixtures other than floor drains, sinks, lavatories 
and drinking fountains. Combination drain and vent systems 
shall not receive the discharge from a food waste grinder or 
clinical sink. 

912.2 Installation. The only vertical pipe of a combination 
drain and vent system shall be the connection between the fix- 
ture drain of a sink, lavatory or drinking fountain, and the hori- 
zontal combination drain and vent pipe. The maximum vertical 
distance shall be 8 feet (2438 mm). 

912.2.1 Slope. The horizontal combination drain and vent 
pipe shall have a maximum slope of one-half unit vertical in 
12 units horizontal (4-percent slope). The minimum slope 
shall be in accordance with Table 704.1. 

912.2.2 Connection. The combination drain and vent sys- 
tem shall be provided with a dry vent connected at any point 
within the system or the system shall connect to a horizontal 
drain that is vented in accordance with one of the venting 
methods specified in this chapter. Combination drain and 
vent systems connecting to building drains receiving only 
the discharge from a stack or stacks shall be provided with a 
dry vent. The vent connection to the combination drain and 
vent pipe shall extend vertically a minimum of 6 inches (152 
mm) above the flood level rim of the highest fixture being 
vented before offsetting horizontally. 

912.2.3 Vent size. The vent shall be sized for the total drain- 
age fixture unit load in accordance with Section 916.2. 

912.2.4 Fistiire branch or drain. The fixture branch or fix- 
ture drain shall connect to the combination drain and vent 
within a distance specified in Table 906. 1 . The combination 
drain and vent pipe shall be considered the vent for the fix- 
ture. 

912.3 Size. The minimum size of a combination drain and vent 
pipe shall be in accordance with Table 912.3. 



DIAMETEO 

PIPE 

(imiefiies) 


MAXtMUM WUMBER OF 
DRAINAGE FIXTURE UNITS (dfu) 


Conmieefmg to 

birairsch ©s- 
stack 


Conr^ectirig to 

a building drain 

or building 

siibdrain 


2 


3 


4 


2% 


6 


26 


3 


12 


31 


4 


20 


50 


5 


160 


250 


6 


360 


575 



SI: 1 inch = 25.4 mm. 



, Island fixture venting shall not be permitted 
for fixtures other than sinks and lavatories. Residential kitchen 
sinks with a dishwasher waste connection, a food waste 
grinder, or both, in combination with the kitchen sink waste, 
shall be permitted to be vented in accordance with this section. 

913.2 Vent connection. The island fixture vent shall connect to 
the fixture drain as required for an individual or common vent. 
The vent shall rise vertically to above the drainage outlet of the 
fixture being vented before offsetting horizontally or vertically 
downward. The vent or branch vent for multiple island fixture 
vents shall extend to a minimum of 6 inches (152 mm) above 
the highest island fixture being vented before connecting to the 
outside vent terminal. 



level rim. The 

vent located below the flood 1 evel rim of the fixture being 
vented shall be installed as required for drainage piping in ac- 
cordance with Chapter 7, except for sizing. The vent shall be 
sized in accordance with Section 916.2. The lowest point of the 
island fixture vent shall connect full size to the drainage sys- 
tem. The connection shall be to a vertical drainpipe or to the top 
half of a horizontal drain pipe. Cleanouts shall be provided in 
the island fixture vent to permit rodding of all vent piping lo- 
cated below the flood level rim of the fixtures. Rodding in both 
directions shall be permitted through a cleanout. 



914,1 Where required. Soil and waste stacks in buildings hav- 
ing more than 10 branch intervals shall be provided with a relief 



70 



2003 INTERWATIOMAL PLUMBING CODE® 



¥EWTi 



vent at each tenth interval installed, beginning w ith the top 
floor. 



installed in accordance with Section 903.4. The offset shall be 
considered the base of the stack. 



a. The size 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 feet (914 mm) above the floor. 

¥iWTS ¥0n SmOGC OFFSETS 

91 Sol Vemit for toorkoimtal olTfFseit off dramfflg® steclko Horizon- 
tal offsets of drainage stacks shall be vented where five or more 
branch intervals are located above the offset. The offset shall be 
vented by venting the upper section of the drainage stack and 
the lower section of the drainage stack. 



The lower section of the drainage stack 
shall be vented by a yoke vent connecting between the offset 
and the next lower horizontal branch. The yoke vent connec- 
tion shall be permitted to be a vertical extension of the drainage 
stack. The size of the yoke vent and connection shall be a mini- 
mum of the size required for the vent stack of the drainage 
stack. 



SiCTBOif 
im FIFE 



I11( 



The upper section of the drainage stack 
shall be vented as a separate stack with a vent stack connection 



916ol §5ze off stack veimts amd vemt steclkSo The minimum re- 
quired diameter of stack vents and vent stacks shall be deter- 
mined from the developed length and the total of drainage 
fixture units connected thereto in accordance with Table 916. 1, 
but in no case shall the diameter be less than one-half the diame- 
ter of the drain served or less than 1 ^^ inches (32 mm). 



LEWOTH OF STOCfiC VEMTS MD VEWT BThCm 





TOTAL 
FJXTyRE 










DJAMETER OF 

SOIL OR 

WASTE 

STACK (ir^eh©g) 


UN8TS 

SE!W@ 

VEWTED 

(dfy) 






MAXIMUM DEVELOPED LEMQTH OF VEWT (feeft)" 
DBAMETER OF VENT (ineGi©s) 


ru 


■aVa 


2 


2% 


3 


4 


5 


® 


© 


10 


n 


1% 


2 


30 






















1% 


8 


50 


150 


— 


— 


— 


— 


— 


— 


— 


— 


— 


IV, 


10 


30 


100 




















2 


12 


30 


75 


200 


















2 


20 


26 


50 


150 




— 


— 


— 


— 


— 


— 


— 


2% 


42 




30 


100 


300 
















3 


10 




42 


150 


360 


1.040 














3 


21 


— 


32 


110 


270 


810 


— 


— 


— 


— 


— 


— 


3 


53 




27 


94 


230 


680 














3 


102 




25 


86 


210 


620 














4 


43 


— 




35 


85 


250 


980 


— 


— 


— 


— 


— 


4 


140 






27 


65 


200 


750 












4 


320 






23 


55 


170 


640 












4 


540 


— 


— 


21 


50 


150 


580 




— 


— 


— 


— 


5 


190 








28 


82 


320 


990 










5 


490 








21 


63 


250 


760 










5 


940 


— 


— 


— 


18 


53 


210 


670 


— 


— 


— 


— 


5 


1,400 








16 


49 


190 


590 










6 


500 










33 


130 


400 


1,000 








6 


1,100 


— 


— 


— 


— 


26 


100 


310 


780 


— 


— 


— 


6 


2,000 










22 


84 


260 


660 








6 


2.900 










20 


77 


240 


600 








8 


1,800 


— 


— 


— 


— 




31 


95 


240 


940 


— 


— 


8 


3,400 




... 








24 


73 


190 


720 







(continued) 



71 



VEMTS 



TABLE 91 SJ- 
m AMD DEVELOPED LEM©Tt=8 OF STACK VENTS AMD VEMT STACKS 





TOTAL 
FIXTURE 








DIAMETER OF 

SOIL OR 

WASTE 

STACK (rmehes) 


UWDTS 

BEIMQ 

VENTED 

(difu) 


MAXJtWyM DEVELOPED LENGTH OF VENT (fee^f 
DIAMETER OF VENT (imieBies) 






i% 


^\ 


2 


2% 


3 


4 


5 


6 


8 


10 


12 


8 


5,600 












20 


62 


160 


610 






8 


7,600 


— 


— 


— 


— 


— 


18 


56 


140 


560 




— 


10 


4,000 














31 


78 


310 


960 




10 


7,200 














24 


60 


240 


740 




10 


11,000 


— 


— 


— 


— 


— 




20 


51 


200 


630 


— 


10 


15,000 














18 


46 


180 


570 




12 


7,300 
















31 


120 


380 


940 


12 


13,000 


— 


— 


— 


— 


— 


— 


— 


24 


94 


300 


720 


12 


20,000 
















20 


79 


250 


610 


12 


26,000 
















18 


72 


230 


500 


15 


15,000 


— 


— 


— 


— 


— 


— 


— 




40 


130 


310 


15 


25,000 


















31 


96 


240 


15 


38,000 


















26 


81 


200 


15 


50,000 


















24 


74 


180 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 

a. The developed length shall be measured from the vent connection to the open air. 



s. The diam- 
eter of individual vents, branch vents, circuit vents and relief 
vents shall be at least one-half the required diameter of the 
drain served. The required size of the drain shall be determined 
in accordance with Table 7 10. 1(2). Vent pipes shall not be less 
than 1 74 inches (32 mm) in diameter. Vents exceeding 40 feet 
(12 192 mm) in developed length shall be increased by one 
nominal pipe size for the entire developed length of th^ vent 
pipe. Relief vents for soil and vi^aste stacks in buildings having 
more than 10 branch intervals shall be sized in accordance with 
Section 914.2. 



imgHliio The developed length of individual, 
branch, circuit and relief vents shall be measured from the far- 
thest point of vent connection to the drainage system to the 
point of connection to the vent stack, stack vent or termination 
outside of the building. 



veinilts. Where multiple branch vents 
are connected to a common branch vent, the common branch 
vent shall be sized in accordance with this section based on the 
size of the common horizontal drainage branch that is or would 
be required to serve the total drainage fixture unit (dfii) load be- 
ing vented. 



Branch vents exceeding 40 feet (12 192 mm) in de- 
veloped length shall be increased by one nominal size for the 
entire developed length of the vent pipe. 



916.5ol Sewage pmmps amd sewage ejectors other than 
pmeuninnialtk. Drainage piping below sewer level shall be vented 
in a similar manner to that of a gravity system. Building sump 
vent sizes for sumps with sewage pumps or sewage ejectors, 
other than pneumatic, shall be determined in accordance with 
Table 916.5.1. 

91<5<,So2 FmsTLnmaitk sewage ejectors. The airpressure relief 
pipe from a pneumatic sewage ejector shall be connected to 
an independent vent stack terminating as required for vent 
extensions through the roof The relief pipe shall be sized to 
relieve air pressure inside the ejector to atmospheric pres- 
sure, but shall not be less than 1 74 inches (32 mm) in size. 



917ol GemeraL Vent systems utilizing air admittance valves 
shall comply with this section. Individual- and branch-type air 
admittance valves shall conform to ASSE 1051. 



917.2 Imstallatflom. The valves shall be installed in accordance 
with the requirements of this section and the manufacturer's in- 
stallation instructions. Air admittance valves shall be installed 
after the DWV testing required by Section 312.2 or 312.3 has 
been performed. 



vemts. Sump vent sizes shall be determined in ac- 
cordance with Sections 916.5.1 and 916.5.2. 



permntted. Individual, branch and circuit vents 
shall be permitted to terminate with a connection to an air ad- 
mittance valve. The air admittance valve shall only vent fix- 
tures that are on the same floor level and connect to a horizontal 
branch drain. The horizontal branch drain shall conform to Sec- 
tion 917.3.1 or Section 9 17.3.2. 



72 



2003 INTERWATIOSVIAL PLUMBS^SG CODE® 



VEWTS 







TABLE 916.5.1 
SIZE AMD LENGTH OF SUMP VENTS 






DISCHARGE CAPACITY 

OF PUBflP 

(gpm) 


MAXIMUM DEVELOPED LENGTH OF VENT (feet)= 


Diameter of vent (inches) 


1V. 


1V, 


2 


2% 


3 


4 


10 


No limit'' 


No limit 


No limit 


No limit 


No limit 


No limit 


20 


270 


No limit 


No limit 


No limit 


No limit 


No limit 


40 


72 


160 


No limit 


No limit 


No limit 


No limit 


60 


31 


75 


270 


No limit 


No limit 


No limit 


80 


16 


41 


150 


380 


No limit 


No limit 


100 


10^ 


25 


97 


250 


No limit 


No limit 


150 


Not permitted 


10= 


44 


110 


370 


No limit 


200 


Not permitted 


Not permitted 


20 


60 


210 


No limit 


250 


Not permitted 


Not permitted 


10 


36 


132 


No limit 


300 


Not permitted 


Not permitted 


10' 


22 


88 


380 


400 


Not permitted 


Not permitted 


Not permitted 


lO'^ 


44 


210 


500 


Not permitted 


Not permitted 


Not permitted 


Not permitted 


24 


130 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 gallon per minute = 3.785 L/m. 

a. Developed length plus an appropriate allowance for entrance losses and friction due to fittings, changes in direction and diameter. Suggested allowances shall be 
obtained from NSB Monograph 3 1 or other approved sources. An allowance of 50 percent of the developed length shall be assumed if a more precise value is not 
available. 

b. Actual values greater than 500 feet. 

c. Less than 10 feet. 



9173,1 Locatioe of toraech. The horizontal branch drain shall 
connect to the drainage stack or building drain a maximum of 
four branch intervals from the top of the stack. 

917o3o2 Relkf vemito The horizontal branch shall be pro- 
vided with a relief vent that shall connect to a vent stack, or 
stack vent, or extend outdoors to the open air. The relief 
vent shall connect to the horizontal branch drain between 
the stack or building drain and the most downstream fix- 
ture drain connected to the horizontal branch drain. The re- 
lief vent shall be sized in accordance with Section 916.2 
and installed in accordance with Section 905. The relief 
vent shall be permitted to serve as the vent for other fix- 
tures. 

917o4 Locatlom. The air admittance valve shall be located a 
minimum of 4 inches (102 mm) above the horizontal branch 
drain or fixture drain being vented. The air admittance valve 
shall be located within the maximum developed length permit- 
ted for the vent. The air admittance valve shall be installed a 
minimum of 6 inches (152 mm) above insulation materials. 



Access shall be provided to all 
air admittance valves. The valve shall be located within a venti- 
lated space that allows air to enter the valve. 

917.6 Ske, The air admittance valve shall be rated in accor- 
dance with the standard for the size of the vent to which the 
valve is connected. 



.7 Vemt required., Within each plumbing system, a mini- 
mum of one stack vent or vent stack shall extend outdoors to the 
open air. 



Air admittance valves shall 
not be installed in nonneutralized special waste systems as de- 
scribed in Chapter 8. Valves shall not be located in spaces uti- 
lized as supply or return air plenums. 



EWGIWEERED VENT SYSTEMS 

918ol GeeeraL Engineered vent systems shall comply with 
this section and the design, submittal, approval, inspection and 
testing requirements of Section 105.4. 



Its, The maximum developed length of individual 
fixture vents to vent branches and vent headers shall be deter- 
mined in accordance with Table 918.2 for the minimum pipe 
diameters at the indicated vent airflow rates. 

The individual vent airflow rate shall be determined in ac- 
cordance with the following: 



Qh.b='Nn.bQv 

For SI: fi,,, = TV,, e, (0.4719 L/s) 
where: 



(Equation 9=1) 



Nn,b = Number of fixtures per header (or vent 
branch) -r- total number of fixtures con- 
nected to vent stack. 

Qh,b = Vent branch or vent header airflow rate 
(cfm). 



2003 INTEIRNATIIONAL PLUMBING CODE® 



73 



Q^, = Total vent stack airflow rate (cftn). 

a(gpm)= 27.8 r, ^3(1.^^^8/3 

a(cftn) = 0.134 a (gpm) 



where: 



D 

r . 



~ Drainage stack diameter (inches). 

= Design discharge load (gpm). 

= Waste water flow area to total area. 

0w 



27.8D* 



Individual vent airflow rates are obtained by equally distrib- 
uting Q^i into one-half the total number of fixtures on the 
branch or header for more than two fixtures; for an odd number 
of total fixtures, decrease by one; for one fixture, apply the fiill 
value of Q;, fc. 



Individual vent developed length shall be increased by 20 
percent of the distance from the vent stack to the fixture vent 
connection on the vent branch or header. 

SEOTiOM 919 
©OMPyTEl^iZEO WEMT DESIQM 

919ol Besngim ®f vemt systtemo The sizing, design and layout of 
the vent system shall be permitted to be determined by approved 
computer program design methods. 



»2 System capacnlty. The vent system shall be based on the 
air capacity requirements of the drainage system under a peak 
load condition. 



MBLE 9D8.2 
MIWlSiUM DIAMETER Al^iD MMJMyW LEMOTH OF 1WD1¥JDUAL BRAMCH FSXTURE VEWTS AMD IMDIVIDUAL 



DIAMETER 

OF VENT 

P8FE (inches) 












lfyiD!¥lDUAL VENT AIRFLOW RATE (eybis f©g1! p©? m 


moU©) 












MsiKSmym devslopisd temgnh of versli (f@s4) 




■5 


2 


3 


^ 


5 


@ 


7 


@ 


9 


10 


11 


12 


13 


M 


15 


1S 


17 


1© 


19 


20 


\ 


95 


25 


13 


8 


5 


4 


3 


2 


1 


1 


1 


1 


1 


1 


1 


1 


1 


1 


1 


1 


'U 


100 


88 


47 


30 


20 


15 


10 


9 


7 


6 


5 


4 


3 


3 


3 


2 


2 


2 


2 


1 


1 





— 


100 


94 


65 


48 


37 


29 


24 


20 


17 


14 


12 


11 


9 


8 


7 


7 


6 


6 


l'/4 


— 


— 


— 


— 


— 


— 


— 


100 


87 


73 


62 


53 


46 


40 


36 


32 


29 


26 


23 


21 


W 


— 


— 


— 


— 


— 


— 


— 


— 


— 


— 


— 


100 


96 


84 


75 


65 


60 


54 


49 


45 


2 


— 


— 


— 




— 


— 


— 


— 


— 


— 


— 


— 




— 


— 


— 


— 


— 


— 


100 



For SI: 1 inch = 25.4 mm, 1 cubic foot per minute = 0.4719 L/s, 1 foot = 304.8 mm. 



74 






1 

»1 Scope. This chapter shall govern the material and in- 
stallation of traps, interceptors and separators. 



SEOTflOM 
TRAP m 



SHEMTS 

5. Each plumbing fixture shall be sepa- 
rately trapped by a water-seal trap, except as otherwise permit- 
ted by this code. The trap shall be placed as close as possible to 
the fixture outlet. The vertical distance from the fixture outlet 
to the trap weir shall not exceed 24 inches (610 mm). The dis- 
tance of a clothes washer standpipe above a trap shall conform 
to Section 802.4. A fixture shall not be double trapped. 



l.This section shall not apply to fixtures with integral 
traps. 

2. A combination plumbing fixture is permitted to be installed 

on one trap provided that one compartment is not more 
than 6 inches ( 1 52 mm) deeper than the other compartment 
and the waste outlets are not more than 30 inches (762 mm) 
apart. 

3. A grease trap intended to serve as a fixture trap in accor- 
dance with the manufacturer's installation instructions 
shall be permitted to serve as the trap for a single fixture 
or a combination sink of not more than three compart- 
ments where the vertical distance from the fixture outlet 
to the inlet of the interceptor does not exceed 30 inches 
(762 mm), and the developed length of the waste pipe 
from the most upstream fixture outlet to the inlet of the 
interceptor does not exceed 60 inches (1524 mm). 

l(DiCIi2.2 BesigE off traps. Fixture traps shall be self-scouring. 
Fixture traps shall not have interior partitions, except where 
such traps are integral with the fixture or where such traps are 
constructed of an approved material that is resistant to corro- 
sion and degradation. Slip joints shall be made with an ap- 
proved elastomeric gasket and shall be installed only on the 
trap inlet, trap outlet and within the trap seal. 

1002,3 Prolhnbnited traps. The following types of traps are pro- 
hibited: 

1. Traps that depend on moving parts to maintain the seal. 

2. Bell traps. 

3. Crown- vented traps. 

4. Traps not integral with a fixture and that depend on interior 
partitions for the seal, except those traps constructed of an 
approved material that is resistant to corrosion and degra- 
dation. 



5. "S" traps. 

6. Drum traps. 

EsceptflOEis Drum traps used as solids interceptors and 
drum traps serving chemical waste systems shall not be 
prohibited. 

1002.4 Trap §sal§. Each fixture trap shall have a hquid seal of 
not less than 2 inches (5 1 mm) and not more than 4 inches ( 1 02 
mm), or deeper for special designs relating to accessible fix- 
tures. Where a trap seal is subject to loss by evaporation, a trap 
seal primer valve shall be installed. A trap seal primer valve 
shall conform to ASSE 1018 or ASSE 1044. 

1002.5 Ske off ffixitiuire traps. Fixture trap size shall be suffi- 
cient to drain the fixture rapidly and not less than the size indi- 
cated in Table 709. 1 . A trap shall not be larger than the drainage 
pipe into which the trap discharges. 

1002.6 BuJWIraig traps. Building (house) traps shall be prohib- 
ited, except where local conditions necessitate such traps. 
Building traps shall be provided with a cleanout and a relief 
vent or fresh air intake on the inlet side of the trap. The size of 
the relief vent or fi-esh air intake shall not be less than one-half 
the diameter of the drain to which the relief vent or air intake 
connects. Such relief vent or fresh air intake shall be carried 
above grade and shall be terminated in a screened outlet located 
outside the building. 

1002.7 Trap settimg and protection. Traps shall be set level 
with respect to the trap seal and, where necessary, shall be pro- 
tected from freezing. 

1002,S Recess ffor trap commectnoira, A recess provided for con- 
nection of the underground trap, such as one serving a bathtub 
in slab-type construction, shall have sides and a bottom of cor- 
rosion-resistant, insect- and verminproof construction. 

1002.9 Add-resnstiimg traps. Where a vitrified clay or other 
brittleware, acid-resisting trap is installed underground, such 
trap shall be embedded in concrete extending 6 inches (152 
mm) beyond the bottom and sides of the trap. 

1002.10 Flujimlbiinig m memtal tiealtlhi cemters. In mental health 
centers, pipes and traps shall not be exposed. 



flWTEROElPTORS AMD SEPARAT©eS 

lA Wlhere reqinired. Interceptors and separators shall be 
provided to prevent the discharge of oil, grease, sand and other 
substances harmful or hazardous to the building drainage sys- 
tem, the public sewer, or sewage treatment plant or processes. 

1003.2 Approval. The size, type and location of each intercep- 
tor and of each separator shall be designed and installed in ac- 
cordance with the manufacturer's instructions and the 
requirements of this section based on the anticipated condi- 
tions of use. Wastes that do not require treatment or separation 
shall not be discharged into any interceptor or separator 



2003 mTERMMIOM^L PLUMBmG CODE® 



75 



TRAPS, INTERCEPTORS AND SEPARATORS 



iw^u/^oji yjTiicasE: traps fflEd grease Interceptors. Grease traps 
and grease interceptors shall comply with the requirements of 
Sections 1003.3.1 through 1003.3.4.2. 

1003.3.1 Grease traps and grease interceptors required. 
A grease trap or grease interceptor shall be required to re- 
ceive the drainage from fixtures and equipment with 
grease-laden waste located in food preparation areas, such 
as in restaurants, hotel kitchens, hospitals, school kitchens, 
bars, factory cafeterias, or restaurants and clubs. 



L3.2 Food waste grimders. Where food waste grinders 
connect to grease traps, a solids interceptor shall separate 
the discharge before connecting to the grease trap. Solids in- 
terceptors and grease interceptors shall be sized and rated 
for the discharge of the food waste grinder. 

1003.3.3 Grease trap and grease interceptor mot re- 
quired. A grease trap or a grease interceptor shall not be re- 
quired for individual dwelling units or any private living 
quarters. 

1003.3.4 Grease traps and grease iiaterceptors. Grease 
traps and grease interceptors shall conform to PDI GlOl, 
ASME A 112.14.3 or ASME A112.14.4 and shall be in- 
stalled in accordance with the manufacturer's instructions. 



13.4.1 Grease trap capacity. Grease traps shall have 
the grease retention capacity indicated in Table 1 003 .3 .4. 1 
for the flow-through rates indicated. 

TABLE 1003.3.^.1 
CAPACITY OF GREASE TRAPS 



TOTAL 

FLOW=THROUGH 

RATIf^G (gpm) 


GREASE 
RETENTIOiHJ 
CAPACITY 

(pounds) 


4 


8 


6 


12 


7 


14 


9 


18 


10 


20 


12 


24 


14 


28 


15 


30 


18 


36 


20 


40 


25 


50 


35 


70 


50 


100 



For SI; 1 gallon per minute = 3.785 L/m, 1 pound = 0.454 kg. 



5.3.4.2 Rate of flow controls. Grease traps shall be 
equipped with devices to control the rate of water flow so 
that the water flow does not exceed the rated flow. The 
flow-control device shall be vented and terminate not less 



than 6 inches (152 mm) above the flood rim level or be 
installed in accordance with the manufacturer's instruc- 
tions. 

1003.4 Oil separators required. At repair garages, 
carwashing facilities with engine or undercarriage cleaning ca- 
pability and at factories where oily and flammable liquid 
wastes are produced, separators shall be installed into which all 
oil-bearing, grease-bearing or flammable wastes shall be dis- 
charged before emptying in the building drainage system or 
other point of disposal. 

1003.4.1 SeparatioE of MquMs, Amixture of lieated or un- 
treated light and heavy liquids with various specific gravi- 
ties shall be separated in an approved receptacle. 



signed in 
1003.4.2.2 



igo. Oil separators shall be de- 
accordance with Sections 1003.4.2.1 and 



.4.2.1 GemeraE design requirements. Oil separators 
shall have a depth of not less than 2 feet (610 mm) below 
the invert of the discharge drain. The outlet opening of the 
separator shall have not less than an 1 8 -inch (457 mm) wa- 
ter seal. 



iges amd service stations. Where auto- 
mobiles are serviced, greased, repaired or washed or 
where gasoline is dispensed, oil separators shall have a 
minimum capacity of 6 cubic feet (0. 1 68 m3) for the first 
100 square feet (9.3 m2) of area to be drained, plus 1 cubic 
foot(0.28 m3) for each additional 100 square feet (9.3 m2) 
of area to be drained into the separator. Parking garages in 
which servicing, repairing or washing is not conducted, 
and in which gasoline is not dispensed, shall not require a 
separator. Areas of commercial garages utiUzed only for 
storage of automobiles are not required to be drained 
through a separator. 



iments. Sand 

and similar interceptors for heavy solids shall be designed and lo- 
cated so as to be provided with ready access for cleaning, and shall 
have a water seal of not less than 6 inches (152 mm). 



.6 LaMEidries. Commercial laundries shall be equipped 
with an interceptor with a wire basket or similar device, remov- 
able for cleaning, that prevents passage into the drainage sys- 
tem of solids 0.5 inch (12.7 mm) or larger in size, string, rags, 
buttons or other materials detrimental to the public sewage sys- 
tem. 



L7 Bottliog establisliments. Bottling plants shall dis- 
charge process wastes into an interceptor that will provide for 
the separation of broken glass or other sohds before discharg- 
ing waste into the drainage system. 



Slaughtering room and dressing 
room drains shall be equipped with approved separators. The 
separator shall prevent the discharge into the drainage system 
of feathers, entrails and other materials that cause clogging. 

1003.9 Vemtirag of interceptors and separators.. Interceptors 
and separators shall be designed so as not to become air bound 
where tight covers are utihzed. Each interceptor or separator 
shall be vented where subject to a loss of trap seal. 



76 



2003 SMTERMATIONAL PLOMBIS^Q CODE® 



TI^APS, IMTEROEPTORS ^IMO SEPAR^TORi 



Access shall be provided to each interceptor and sepa- 
rator for service and maintenance. Interceptors and separator 
shall be maintained by periodic removal of accumulated 
grease, scum, oil, or other floating substances and solids depos- 
ited in the interceptor or separator. 

SiCT[i@M mm 

MMEI^IALS, J©DMTS AMD ©©1MMECT0©MS 

l®®4ol Gemerai The materials and methods utilized for the 
construction and installation of traps, interceptors and separa- 
tors shall comply with this chapter and the applicable provi- 
sions of Chapters 4 and 7. The fittings shall not have ledges, 
shoulders or reductions capable of retarding or obstructing 
flow of the piping. 



2003 IMTERIMATIIOWAL PLU MillMG CODE® 77 



7S 2003 iWTEHMMlONAL FLUMBSMG CODE® 



©[Hl^lPTE^I]'^ 



ol S(E(D>]p©c The provisions of this chapter shall govern the 
materials, design, constractioe and installation of storai drain- 



1.2 Wlhsr® ireqimiradl. All roofs, paved areas, yards, courts 
and coiMtyards shall drain into a separate storm sewer system, 
or a combined sewer system, or to an approved place of dis- 
posal. For one- and two-family dwellings, and where approved, 
storm water is permitted to discharge onto flat areas, such as 
streets or lawns, provided that the storm water flows away from 



lldDloS FimlbntoEtedl dlraiSniisig®., Storm water shall not be drained 
into sewers intended for sewage only. 

UKUlo^J Tssi^o The conductors and the building storm drain 
shall be tested in accordance with Section 312. 

lldDlloS Ctomg® nun sk®. The size of a drainage pipe shall not be 
reduced in the direction of flow. 

11]I(D)IIo(S FntlliDimgs amdl c<!])iffiiin®c!in<D)iiiiSo All connections and 
changes in direction of the storm drainage system shall be made 
with approved drainage-type fittings in accordance with Table 
706.3. The fittings shall not obstruct or retard flow in the sys- 



igiiiio Roots snal! be designed tor toe maximum 
le aeptn oi water that will pond thereon as determined by 
the relative levels of roof deck and overflow weirs, scuppers, 
edges or serviceable drains in combination with the deflected 
structural elements. In determining the maximum possible 
depth of water, all primary roof drainage means shall be as- 
sumed to be blocked. 



storm drainage system amd shall comply with the provisions of 
this code for 



n Es(E®pfiD®ims Subsurface drainage system. 



vMvsSo BacJswater valves 
drainage system shall conform to Section 715 



D2oll G®nn®irsillo The materials and methods utilized for the 
construction and installation of storm drainage systems shall 
comply with this section and the applicable provisions of Chap- 
ter?. 

]ll([D2o2 EifflsMffi stoiTM dlraSiniag® cmnndlniistoifSo Inside storm 
drainage conductors installed above ground shall conform to 
one of the standards listed in Table 702.1. 

Ill®2o3 Uimdleir^imiiiiJidl taMnimg stornnm dTsM pnp®. Under- 
ground building storm drain pipe shall conform to one of the 
standards listed in Table 702.2. 



SldDSo'^ BMUdlnEiig stoimnD s©w©ir jpnp®. Building storm sewer pipe 
shall conform to one of the standards listed in Table 1 102.4. 

@ mourn SEWEi^ mm 



WMmmihL 


SmMP^I^D) 


Acrylonitrile butadiene styrene 
(ABS) plastic pipe 


ASTM D 2661; ASTM D 
2751; ASTMF 628 


Asbestos-cement pipe 


ASTM C 428 


Cast-iron pipe 


ASTM A 74; ASTM A 888; 
CISPI 301 


Concrete pipe 


ASTM C 14; ASTM C 76; 
CAN/CSAA257.1M; 
CAN/CSA A257.2M 


Copper or copper-alloy tubing 
(lype K, L, M or DWV) 


ASTM B 75; ASTM B 88; 
ASTM B 251; ASTM B 306 


Polyvinyl chloride (PVC) 
plastic pipe (Type DWV, 
SDR26,SDR35,SDR41, 
PSSOorPSlOO) 


ASTM D 2665; ASTM D 
3034; ASTMF 891; 
CSA-B182.2; 
CAN/CSA-B 182.4 


Vitrified clay pipe 


ASTM C 4; ASTM C 700 


Stainless steel drainage 

Systems, Type 3 16L 


ASMEAl 12.3.1 



ll]l(ID2oS §i!iiIbs®nB dlraiDnn pnp®. Subsoil 
open-jointed, horizontally split or perforated 
to one of the standards listed in Table 1 102.5. 



MiLir 



s s 

pipe confo; 



MATE^P-^L 


QimwmB 


Asbestos-cement pipe 


ASTM C 508 


Cast-iron pipe 


ASTM A 74; ASIM A 888; 
CISPI 301 


Polyethylene (PE) plastic pipe 


ASTMF 405 


Polyvinyl chloride (PVC) 
Plastic pipe (type sewer pipe, 
PS25, PSSOorPSlOO) 


ASTM D 2729; ASTMF 891; 
CSA-B 182.2; 
CAN/CSA-B 182.4 


Vitrified clay pipe 


ASTM C 4; ASTM C 700 


Stainless steel drainage 
Systems, IVpe 31 6L 


ASMEAl 12.3.1 



ffsimSo Roof drains shall conform to 
A112.21.2M or ASMEAl 12.3.1. 



araS MT(EIRMATB©Mi«\L (PLyMBIlM© ©OOE® 



STORM DRAINAGE 



1102.7 Fittings. Pipe fittings shall be approved for installation 
with the piping material installed, and shall conform to the re- 
spective pipe standards or one of the standards listed in Table 
1 102.7. The fittings shall not have ledges, shoulders or reduc- 
tions capable of retarding or obstructing flow in the piping. 
Threaded drainage pipe fittings shall be of the recessed drain- 
age type. 

TABLE 1102.7 
PIPE FITTINGS 



MATERIAL 


STANDARD 


Acrylonitrile butadiene styrene 
(ABS) plastic 


ASTMD 2468; ASTMD 2661 


Cast-iron 


ASMEB16.4;ASMEB16.12; 
ASTMA888;CISPI301; 

ASTM A 74 


Chlorinated polyvinyl chloride 
(CPVC) plastic 


ASTMF437;ASTMF438; 
ASTM F 439 


Copper or copper alloy 


ASME 316.15; ASME 
B16.18;ASMEB16.22; 
ASME B16.23; ASME 
B 1 6.26; ASME B 16.29 


Gray iron and ductile iron 


AWWACllO 


Malleable iron 


ASME B 16.3 


Plastic, general 


ASTM F 409 


Polyethylene (PE) plastic 


ASTM D 2609 


Polyvinyl chloride (PVC) 
plastic 


ASTM D 2464; ASTM D 
2466; ASTM D 2467; 
CSA-B 137.2; 
ASTMD 2665; ASTM F 1866 


Steel 


ASME B16.9; ASME B16.il; 
ASME B 16.28 


Stainless steel drainage 
Systems, Type316L 


ASMEA112.3.I 



CONDUCTORS AMD COMNECTIOIMS 

1104.1 ProDiiMted ese. Conductor pipes shall not be used as 
soil, waste or vent pipes, and soil, waste or vent pipes shall not 
be used as conductors. 

11 ©4.2 Combimmg storm with sanitary drainage. The sani- 
tary and storm drainage systems of a structure shall be entirely 
separate except where combined sewer systems are utilized. 
Where a combined sewer is utilized, the building storm drain 
shall be connected in the same horizontal plane through a sin- 
gle-wye fitting to the combined sewer at least 10 feet(3048 
mm) downstream from any soil stack. 

fims. Floor drains shall not be connected to a 



storm drain. 



MOS.l Straimers, Roof drains 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 that are normally serviced and 
maintained shall comply with Section 1 105. 1 or shall be of the 
fiat-surface type, installed level with the deck, with an avail- 
able inlet area not less than two times the area of the conductor 
or leader to which the drain is connected. 



asMngs. The connection between roofs 
and roof drains which pass through the roof and into the interior 
of the building shall be made water tight by the use of approved 
flashing material. 



SECTIOM1103 
TRAPS 

Main trap. Leaders and storm drains connected to a 
combined sewer shall be trapped. Individual storm water traps 
shall be installed on the storm water drain branch serving each 
conductor, or a single trap shall be installed in the main storm 
drain just before its connection with the combined building 
sewer or the public sewer. 

1103.2 Material. Storm water traps shall be of the same mate- 
rial as the piping system to which they are attached. 

1103.3 Size. Traps for individual conductors shall be the same 
size as the horizontal drain to which they are connected. 

1103.4 Cleanout. An accessible cleanout shall be installed on 
the building side of the trap. 



SOIE OF CONDUCTORS, LEADERS 
AMD STORM DRAINS 

1106.1 GeineraL The size of the vertical conductors and lead- 
ers, building storm drains, building storm sewers, and any hori- 
zontal branches of such drains or sewers shall be based on the 
100-year hourly rainfall rate indicated in Figure 1106.1 or on 
other rainfall rates determined from approved local weather 
data. 



rs amd leaders. Vertical conductors 
and leaders shall be sized for the maximum projected roof area, 
in accordance with Table 1106.2. 



ig storm drains and sewers. The size of the 
building storm drain, building storm sewer and their horizontal 
branches having a slope of one-half unit or less vertical in 12 
units horizontal (4-percent slope) shall be based on the maxi- 
mum projected roof area in accordance with Table 1 106.3. The 
minimum slope of horizontal branches shall be one-eighth unit 
vertical in 12 units horizontal (1 -percent slope) unless other- 
wise approved. 



2003 IMTERNATSONAL PLUMBING CODE® 




FIGE 

mm, 11-Hoi! 

EASTERN 



4.28==^' 



m RAINFALL ( 
UMITED STMI 



For SI: 1 inch = 25.4 mm. 

Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington D.C. 



2003 mTEHMMiOMhL PLUMBmQ CODE® 




2.7S 



FIGURE liOS.I— coMirsued 
1iOO-YE/S\R, 1-HOUR RAJWFALL (SWCHES) 



For SI: 1 inch = 25.4 mm. 

Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington D.C. 



ITORM DRAIM^GE 




FIGURE 1 1I 06.11 — e@ini£E(niu©d 
1100-YE/^R, H-HOUR Ri^lWF/SiLL (IMCHI 



For SI: 1 inch = 25.4 mm. 

Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington D.C. 



20QQ 8WTERMM80W/8\L PLUMBJWG CODE® 



170° 175° W° 17i° MO' M" 16Q 



1460 140, i3g,> 1^, 



170° 




1^» 130 



FIGURE IHOS.H—corjMiniyedl 

■jOO-YE/AR, 1»H0Un OAINF^LL (INCHES) 

ALASKA 



For SI: 1 inch - 25 A mm. 

Source: National Weather Service, National Oceanic and Atmospheric Administration, Washington D.C. 



2003 IMTERMATfOMAL PLUMBII^G CODE® 








W\ 


A 


Jl 

1 Jl c^ 


K^U 


o 
o 





^5^^^ 


re /I 


^ 




x^ 







FUTURE 11I0S.11— conltinuedl 
100-YEAR, 11=H0UR RAINFALL (INCHES) 



For SI: 1 inch = 25.4 mm. 

Source; National Weather Service, National Oceanic and Atmospheric Administration, Washington D.C. 



2003 JIMTEeWATIlOMAL PLUMB8NG CODE® 



STORM DRAJNAGE 



TABLE 1106.2 
SilE OF VERTICAL COMDUCTORS AND LEADERS 



DIAMETER OF 

OF LEADER 

(iinehes)° 


H0R8Z0MTALLY PROJECTED ROOF AREA (squar® fees) 


Rajofall mt® (isnehes p®r Cuoyf) 


11 


2 


3 


4 


S 


6 


7 


8 


9 


10 


11 


12 


2 


2,880 


1,440 


960 


720 


575 


480 


410 


360 


320 


290 


260 


240 


3 


8,800 


4,400 


2,930 


2,200 


1,760 


1,470 


1,260 


1,100 


980 


880 


800 


730 


4 


18,400 


9,200 


6,130 


4,600 


3,680 


3,070 


2,630 


2,300 


2,045 


1,840 


1,675 


1,530 


5 


34,600 


17,300 


11,530 


8,650 


6,920 


5,765 


4,945 


4,325 


3,845 


3,460 


3,145 


2,880 


6 


54,000 


27,000 


17,995 


13,500 


10,800 


9,000 


7,715 


6,750 


6,000 


5,400 


4,910 


4,500 


8 


116,000 


58,000 


38,660 


29,000 


23,200 


19,315 


16,570 


14,500 


12,890 


11,600 


10,545 


9,600 



For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m^. 

a. Sizes indicated are the diameter of circular piping. This table is applicable to piping of other shapes provided the cross-sectional shape fully encloses a circle of 
the diameter indicated in this table. 



TABLE 1106.3 







SIZE OF HORIZONTAL STORM DRAIWGE PIPING 






SIZE OF 

HORIZONTAL 

PIPING 




H0R8Z0NTALLY PROJECTED ROOF AREA (sqt 


jare fe©4) 




RaiBifaBII mt® (ifneiies per h@m) 














(inches) 


1 


a 


3 


4 


5 


6 


Vg unit vertical in 12 units horizontal (1-percent slope) 


3 


3,288 


1,644 


1,096 


822 


657 


548 


4 


7,520 


3,760 


2,506 


1,800 


1,504 


1,253 


5 


13,360 


6,680 


4,453 


3,340 


2,672 


2,227 


6 


21,400 


10,700 


7,133 


5,350 


4,280 


3,566 


8 


46,000 


23,000 


15,330 


11,500 


9,200 


7,600 


10 


82,800 


41,400 


27,600 


20,700 


16,580 


13,800 


12 


133,200 


66,600 


44,400 


33,300 


26,650 


22,200 


15 


218,000 


109,000 


72,800 


59,500 


47,600 


39,650 


% unit vertical in 12 units horizontal (2 -percent slope) 


3 


4,640 


2,320 


1,546 


1,160 


928 


773 


4 


10,600 


5,300 


3,533 


2,650 


2,120 


1,766 


5 


18,880 


9,440 


6,293 


4,720 


3,776 


3,146 


6 


30,200 


15,100 


10,066 


7,550 


6,040 


5,033 


8 


65,200 


32,600 


21,733 


16,300 


13,040 


10,866 


10 


116,800 


58,400 


38,950 


29,200 


23,350 


19,450 


12 


188,000 


94,000 


62,600 


47,000 


37,600 


31,350 


15 


336,000 


168,000 


112,000 


84,000 


67,250 


56,000 


Vi unit vertical in 12 units horizontal (4-percent slope) 


3 


6,576 


3,288 


2,295 


1,644 


1,310 


1,096 


4 


15,040 


7,520 


5,010 


3,760 


3,010 


2,500 


5 


26,720 


13,360 


8,900 


6,680 


5,320 


4,450 


6 


42,8(M) 


21,400 


13,700 


10,700 


8,580 


7,140 


8 


92,000 


46,000 


30,650 


23,000 


18,400 


15,320 


10 


171,600 


85,800 


55,200 


41,400 


33,150 


27,600 


12 


266,400 


133,200 


88,800 


66,600 


53,200 


44,400 


15 


476,000 


238,000 


158,800 


119,000 


95,300 


79,250 



For SI; 1 inch = 25.4 mm, 1 square foot = 0.0929 m^ 



2003 INTERNATIOMAL PLUMBING CODE® 



iTQBM DRAIMAGE 



So In sizing roof drains and stonn drainage 
piping, one-half of the area of any vertical wall that diverts rain- 
water to the roof shall be added to the projected roof area for in- 
clusion in calculating the required size of vertical conductors, 
leaders and horizontal storm drainage piping. 



llO^oiS §k® of rodplf gUBttUorSo The size of semicircular gutters 
shall be based on the maximum projected roof area in accor- 
dance with Table 1106.6. 



ICTi 



Parapet wall roof 
drainage scupper and overflow scupper location shall comply 
with the requirements of the International Building Code. 






l® reqjMiredlo Secondary (emer- 
gency) roof drains or scuppers shall be provided where the roof 
perimeter construction extends above the roof in such a manner 
that water will be entrapped if the primary drains allow buildup 
for any reason. 



STTI 



DIAMETER 
OF QyTTERS 




HORIZONTALLY PROJEeTiD ROOF AREA (gqyar® fegU) 




RsiinifellJ rM© (o[riio(hi©s p©r h©m} 


1 


2 


a 


4 


5 


S 


'/i6 unit vertical in 12 units horizontal (0.5-percent slope) 


3 


680 


340 


226 


170 


136 


113 


4 


1,440 


720 


480 


360 


288 


240 


5 


2,500 


1,250 


834 


625 


500 


416 


6 


3,840 


1,920 


1,280 


960 


768 


640 


7 


5,520 


2,760 


1,840 


1,380 


1,100 


918 


8 


7,960 


3,980 


2,655 


1,990 


1,590 


1,325 


10 


14,400 


7,200 


4,800 


3,600 


2,880 


2,400 


Vg unit vertical 12 units horizontal (1-percent slope) 


3 


960 


480 


320 


240 


192 


160 


4 


2,040 


1,020 


681 


510 


408 


340 


5 


3,520 


1,760 


1,172 


880 


704 


587 


6 


5,440 


2,720 


1,815 


1,360 


1,085 


905 


7 


7,800 


3,900 


2,600 


1,950 


1,560 


1,300 


8 


11,200 


5,600 


3,740 


2,800 


2,240 


1,870 


10 


20,400 


10,200 


6,800 


5,100 


4,080 


3,400 


% unit vertical in 12 units horizontal (2-percent slope) 


3 


1,360 


680 


454 


340 


272 


226 


4 


2,880 


1,440 


960 


720 


576 


480 


5 


5,000 


2,500 


1,668 


1,250 


1,000 


834 


6 


7,680 


3,840 


2,560 


1,920 


1,536 


1,280 


7 


11,040 


5,520 


3,860 


2,760 


2,205 


1,840 


8 


15,920 


7,960 


5,310 


3,980 


3,180 


2,655 


10 


28,800 


14,400 


9,600 


7,200 


5,750 


4,800 


Vz unit vertical in 12 units horizontal (4-percent) 


3 


1,920 


960 


640 


480 


384 


320 


4 


4,080 


2,040 


1,360 


1,020 


816 


680 


5 


7,080 


3,540 


2,360 


1,770 


1,415 


1,180 


6 


11,080 


5,540 


3,695 


2,770 


2,220 


1,850 


7 


15,600 


7,800 


5,200 


3,900 


3,120 


2,600 


8 


22,400 


11,200 


7,460 


5,600 


4,480 


3,730 


10 


40,000 


20,000 


13,330 


10,000 


8,000 


6,660 



For SI: 1 inch = 25.4 mm, 1 square foot = 0.0929 m^ 



Secondary roof drain sys- 
tems shall have the end point of discharge separate from the pri- 
mary system. Discharge shall be above grade, in a location 
which would normally be observed by the building occupants 
or maintenance personnel. 



king off secomdary draiisSo Secondary (emergency) 
roof drain systems shall be sized in accordance with Section 
11 06 based on the rainfall rate for which the primary system is 
sized in Tables 1106.2, 1106.3 and 1106.6. Scuppers shall be 
sized to prevent the depth of ponding water from exceeding 
that for which the roof was designed as determined by Section 
1 101.7. Scuppers shall not have an opening dimension of less 
than 4 inches (102 mm). The flow through the primary system 
shall not be considered when sizing the secondary roof drain 
system. 



eOMBIMED SANimiRY AMD STORM SYSTI 



sewers. The size of a 
combination sanitary and storm drain or sewer shall be com- 
puted in accordance with the method in Section 1106,3. The 
fixture units shall be converted into an equivalent projected 
roof or paved area. Where the total fixture load on the com- 
bined drain is less than or equal to 256 fixture units, the equiva- 
lent drainage area in horizontal projection shall be taken as 
4,000 square feet (372 m^). Where the total fixture load exceeds 
256 fixture units, each additional fixture unit shall be consid- 
ered the equivalent of 15.6 square feet (1.5 m^) of drainage 
area. These values are based on a rainfall rate of 1 inch (25 mm) 
per hour. 



SECTfl©^ t 
V/^LUES FOR COMTIMUOyS FLOW 



area. Where there is a continuous or 
semicontinuous discharge into the building storm drain or 
building storm sewer, such as from a pump, ejector, air condi- 
tioning plant or similar device, each gallon per minute (L/m) of 
such discharge shall be computed as being equivalent to 96 
square feet (9 m^) of roof area, based on a rainfall rate of 1 inch 
(25,4 mm) per hour. 

SiOTIOM 11110 
C0OTROLLED FLOW ROOF DRAW SYSTEMS 



,1 General. The roof of a structure shall be designed for the 
storage of water where the storm drainage system is engineered 
for controlled flow. The controlled flow roof drain system shall 
be an engineered system in accordance with this section and the 
design, submittal, approval, inspection and testing requirements 
of Section 105.4. The controlled flow system shall be designed 
based on the required rainfall rate in accordance with Section 
1106.1. 



.2 ComltroS devices. The control devices shall be installed 
so that the rate of discharge of water per minute shall not ex- 
ceed the values for continuous flow as indicated in Section 
1109.1. 

111®.3 Imstallattora, Runoff control shall be by control devices. 
Control devices shall be protected by strainers. 



as. Not less than two 
roof drains shall be installed in roof areas 10,000 square feet 
(930 m^) or less and not less than four roof drains shall be in- 
stalled in roofs over 10,000 square feet (930 m^) in area. 

SECTiOMim 
SUBSOIL DRAINS 

mil.l Siiliisoi drains. Subsoil drains shall be open-jointed, 
horizontally split or perforated pipe conforming to one of the 
standards Usted in Table 1102.5. Such drains shall not be less 
than 4 inches (102 mm) in diameter. Where the building is sub- 
ject to backwater, the subsoil drain shall be protected by an ac- 
cessibly located backwater valve. Subsoil drains shall 
discharge to a trapped area drain, sump, dry well or approved 
location above ground. The subsoil sump shall not be required 
to have either a gas-tight cover or a vent. The sump and pump- 
ing system shall comply with Section 1113.1. 

SECTiOM1112 



1112.1 BiDflMmg snslbdraniiis. 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. The sump and pumping equipment shall comply with 
Section 1113.1. 



ECT50N1113 



PSM 



1113.1 Fnampiinig system. The sump pump, pit and discharge 
piping shall conform to Sections 1113.1.1 tfirough 1 1 1 3. 1 .4. 

1113.1.1 fump capacity and head. The sump pump shall 
be of a capacity and head appropriate to anticipated use re- 
quirements. 

1113.1.2 SuBmp p5t. The sump pit shall not be less than 18 
inches (457 mm) in diameter and 24 inches (610 mm) deep, 
unless otherwise approved. The pit shall be accessible and 
located such that all drainage flows into the pit by gravity. 
The sump pit shall be constructed of tile, steel, plastic, 
cast-iron, concrete or other approved material, with a re- 
movable cover adequate to support anticipated loads in the 
area of use. The pit floor shall be solid and provide perma- 
nent support for the pump. 



1113.1.3 ElectrkaL Electrical service outlets, when re- 
quired, shall meet the requirements of the ICC Electrical 
Code. 

1113.1.4 Fipimg, Discharge piping shall meet the require- 
ments of Section 1102.2, 1102.3 or 11 02.4 and shall include 
a gate valve and a full flow check valve. Pipe and fittings 
shall be the same size as, or larger than, pump discharge tap- 
ping. 



BUS In one- and two-family dwellings, only a 
check valve shall be required, located on the discharge 
piping from the pump or ejector. 



2003 INITERM/ATSOMAL PLUMeiMG CODE© 



SiCTIOM 11201] 
GENERAL 

12®L1 Scope. The provisions of this chapter shall govern the 
design and installation of piping and storage systems for non- 
flammable medical gas systems and nonmedical oxygen sys- 
tems. All maintenance and operations of such systems shall be 
in accordance with the International Fire Code. 



[FJ 12®2ol NomllammabEe medkal gases. Nonflammable 
medical gas systems, inhalation anesthetic systems and vac- 
uum piping systems shall be designed and installed in accor- 
dance with NFPA 99C. 



1 . This section shall not apply to portable systems or cylin- 
der storage. 

2. Vacuum system exhaust shall comply with the Interna- 
tional Mechanical Code. 



|F| 12§3ol Besign and tsistallaftloE, Nonmedical oxygen sys- 
tems shall be designed and installed in accordance with NFPA 
50 and NFPA 51. 



2003 J^5TEF?NATtOMAL PLUMBING CODE® 



90 2003 WTERNATIOMAL PLUMBING CODE® 



REFE^I 



S\PTEiai3 



This chapter lists the standards that are referenced in various sections of this document. The standards are hsted herein by the 
promulgating agency of the standard, the standard identification, the effective date and title, and the section or sections of this 
document that reference the standard. The application of the referenced standards shall be as specified in Section 102.8. 



ANSI 



Z4.3— 95 
Z2 1.22— 99 
Z124.1— 95 
Z124.2— 95 
Z124.3— 95 
Z 124.4— 96 
Z 124.6— 97 



American National Standards Institute 
25 West 43rd Street, Fourth Floor 
New York, NY 10036 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



Minimum Requirements for Nonsewered Waste-Disposal Systems 

Relief Valves for Hot Water Supply Systems 

Plastic Bathtub Units 

Plastic Shower Receptors and Shower Stalls 

Plastic Lavatories 

Plastic Water Closet Bowls and Tanks 

Plastic Sinks 



311.1 

. 504.2, 504.5 

407.1 

417.1 

416.1,416.2 

420.1 

415.1,418.1 



1 



Air-Conditioning & Refrigeration Institute 
4100 North Fairfax Drive, Suite 200 
Ariington, VA 22203 



Standard 
reference 
number 



Title 



Referenced 

in code 

section number 



1010—94 



Self-Contained, Mechanically-Refrigerated Drinking- Water Coolers 410.1 



American Society of Mechanical Engineers 

Three Park Avenue 

New York, NY 10016-5990 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



A112.1.2— 1991(R1998) 
A 112. 1.3— 2000 
A112.3. 1—1993 



A 112.3.4—2000 
A112.4.1— 1993(R1998) 
A112.4.3— 1999 
A112.6.1M— 1997 
Al 12.6.2— 2000 
A112.6.3— 2001 
Al 12.6.7— 2001 
A112.14.1— 1975(R1998) 
Al 12. 14.3— 2000 
A112.14.4— 2001 
A112.18.1— 2000 
A112.18.3M— 1996 
A112.18.6— 1999 
A112.18.7— 1999 
A112.19.1M— 1994(R1999) 
A112.19.2M— 1998 



Air Gaps in Plumbing Systems Table 608. 1 

Air Gap Fittings for Use with Plumbing Fixtures, Appliances and Appurtenances 608.13.1, Table 608.1 

Performance Standard and Installation Procedures for Stainless Steel Drainage Systems or Sanitary, Storm and 

Chemical Applications, Above and Below Ground 412.1, Table 702.1, Table 702.2, Table 702.3, 

Table 702.4, 708.2, Table 1102.4, Table 1102.5, 1102.6, Table 1102.7 

Macerating Toilet Systems and Related Components 712.4.1 

Water Heater Relief Valve Drain Tubes 504.6.2 

Plastic Fittings for Connecting Water Closets to the Sanitary Drainage System 405.4 

Floor- Affixed Supports for Off-the-Floor Plumbing Fixtures for Public Use 405.4.3 

Framing-Affixed Supports for Off-the-Floor Water Closets with Concealed Tanks 405.4.3 

Floor and Trench Drains 412.1 

Enameled and Epoxy-cokted Cast-iron and PVC plastic Sanitary Floor Sinks 427.1 

Backwater Valves 715.2 

Grease Interceptors 1 003.3.4 

Grease Removal Devices 1003.3.4 

Plumbing Fixture Fittings 424. 1 

Performance Requirements for Backflow Protection Devices and Systems in Plumbing Fixture Fittings 424.4 

Flexible Water Connectors 605.6 

Deck mounted Bath/Shower Transfer Valves with Integral Backflow Protection 424.6 

Enameled Cast Iron Plumbing Fixtures 407.1,410.1,415.1,416.1,418.1 

Vitreous China Plumbing Fixtures 401.2,405.9,408.1,410.1,416.1,418.1,419.1,420.1 



2003 INTERiSJATIONAL PLUIMBIING CODE® 



91 



EFEREWCED STANDARDS 



An2.19 
A112.19 
A112.19 
A112.19 
A112.19 
A112.19 
A112.19 
Al 12.19 
A112.19 
A1I2J9. 
A112.21 
A112.36 
Bl.20.1- 



3M— 1987(R1996) 

4M— 1994{R1999) 

5—1999 

.6—1995 

7M— 1995 

8M— 1987(R1996) 

9M— 1998 

12—2000 

13—2001 

15—2001 

2M— 1983 

2M— 1991 (R 1998) 

-1983(R1999) 



B 16.3— 1999 
B 16.4— 1998 
B 16.9— 1993 
B16.1I— 1996 
B16.12— 1998 
B16.15— 1985(R1994) 
B16.18— 1984(R1994) 
B 16.22—1 995 
B16.23— 1992 
B16.26— 1988 
B 16.28— 1994 
B16.29— 1994 



Stainless Steel Plumbing Fixtures (Designed for Residential U.se) 405.9, 415. 1, 416.1, 418. 1 

Porcelain Enameled Formed Steel Plumbing Fixtures 407.1, 416.1, 418.1 

Trim for Water-Closet Bowls, Tanks, and Urinals 425.4 

Hydraulic Performance Requirements for Water Closets and Urinals 41 9. 1 , 420. 1 

Whirlpool Bathtub Appliances 421.1 

Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs, and Whirlpool Bathtub Appliances 421.4 

Non-Vitreous Ceramic Plumbing Fixtures 407,1, 408.1, 410.1, 415.1, 416.1, 417.1, 418.1, 420.1 

Wall Mounted and Pedestal Mounted, Adjustable and Pivoting Lavatory and Sink Carrier Systems 416.4, 418.3 

Electrohydraulic Water Closets 420. 1 

BathtubAVhirlpool Bathtubs with Pressure Sealed Doors 407.4, 421 .5 

Roof Drains 1 102.6 

Cleanouts 708.2 

Pipe Threads, General Purpose (inch) 605.10.3, 605.12.3, 605.14.4, 605.16.3, 605.18.1, 

705, 705.2.3, 705.4.3 

Malleable Iron Threaded Fittings Classes 150 and 300 Table 605.5, Table 702.4, Table 1 102.7 

Gray Iron Threaded Fittings Classes 125 and 250 Table 605,5, Table 702.4, Table 1 102.7 

Factory-Made Wrought Steel Buttwelding Fittings Table 605.5, Table 702.4, Table 1 102.7 

Forged Fittings, Socket-Welding and Threaded Table 605.5, Table 702.4, Table 1 102.7 

Cast-iron Threaded Drainage Fittings Table 605.5, Table 702.4, Table 1 102.7 

Cast Bronze Threaded Fittings Table 605.5, Table 702.4, Table 1 102.7 

Cast Copper Alloy Solder Joint Pressure Fittings Table 605.5, Table 702.4, Table 1 102.7 

Wrought Copper and Copper Alloy Solder Joint pressure Fittings Table 605.5, Table 702.4, Table 1 102.7 

Cast Copper Alloy Solder Joint Drainage Fittings DWV Table 605.5, Table 702.4, Table 1 102.7 

Cast Copper Alloy Fittings for Flared Copper Tubes . Table 605.5, Table 702.4, Table 1 102.7 

Wrought Steel Buttwelding Short Radius Elbows and Returns Table 605.5, Table 702.4, Table 1 102.7 

Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings— DWV . . Table 605.5, Table 702.4, Table 1 102.7 



American Society of Sanitary Engineering 
901 Canterbury Road, Suite A 
Westlake, OH 44145 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



1001—90 
1002—99 

1003—95 
1004—90 
1005—99 
1006—89 
1007—92 
1008—89 
1009—90 
1010—98 
101 1—95 
1012—95 

1013—99 

1014—90 
1015—99 

1016—96 

1017—99 

1018—86 
1019—97 

1020—98 
1022—98 



Performance Requirements for Pipe Applied Atmospheric Type Vacuum Breakers 425.2, Table 608.1, 608.13.6 

Performance Requirements for Antisiphon Fill Valves (Ballcocks) for Gravity 

Water Closet Flush Tanks 425.3.1, Table 608.1 

Performance Requirements for Water Pressure Reducing Valves 604.8 

Performance Requirements for Backflow Prevention Requirements for Commercial Dishwashing Machines 409.1 

Performance Requirements for Water Heater Drain Valves 501.3 

Performance Requirements for Residential Use Dishwashers 409.1 

Performance Requirements for Home Laundry Equipment 406. 1 , 406.2 

Performance Requirements for Household Food Waste Disposer Units 413.1 

Performance Requirements for Commercial Food Waste Grinder Units 413.1 

Performance Requirements for Water Hammer Arresters 604.9 

Performance Requirements for Hose Connection Vacuum Breakers Table 608. 1, 608. 1 3.6 

Performance Requirements for Backflow Preventers with 

Intermediate Atmospheric Vent Table 608.1, 608.13.3, 608.16.2 

Performance Requirements for Reduced Pressure Principle Backflow Preventers and Reduced 

Pressure Fire Protection Principle Backflow Preventers Table 608.1, 608.13.2, 608.16.2 

Performance Requirements for Handheld Showers 424.2 

Performance Requirements for Double Check Backflow Prevention Assemblies 

And Double Check Fire Protection Backflow Prevention Assemblies Table 608.1, 608.13.7 

Performance Requirements for Individual Thermostatic, Pressure Balancing and 

Combination Control Valves for Individual Fixture Fittings 424.3 

Performance Requirements for Temperature Actuated Mixing Valves for Hot Water 

Distribution Systems 424.3, 424.5, 61 3. 1 

Performance Requirements for Trap Seal Primer Valves; Water Supply Fed 1002.4 

Performance Requirements for Vacuum Breaker Wall Hydrants, Freeze Resistant, 

Automatic Draining Type Table 608.1, 608.13.6 

Performance Requirements for Pressure Vacuum Breaker Assembly Table 608.1, 608.13.5 

Performance Requirements for Backflow Preventer for Carbonated Beverage Machines Table 608. 1 , 608. 1 6. 1 



2003 IWTERMATIOMAL PLUMBJMG CODE® 



IREFERiEWCEP ST^ND^ROi 



1024—98 

1035—95 
1037—90 
1044—86 
1047—99 

1048—99 

1051—98 

1052—94 
1055—97 
1056—95 
1060—96 
1062—97 

1066—97 
5013—98 

5015—98 
5020—98 
5047—98 

5048—98 
5052—98 
5056—98 



iSiSSE— eomifio mi y ©<dl 
Performance Requirements for Dual Check Valve Type Backflow Preventers 

(for Residential Supply Service or Individual Outlets) 605.3.1, Table 608.1 

Performance Requirements for Laboratory Faucet Backflow Preventers Table 608.1, 608.13.6 

Performance Requirements for Pressurized Flushing Devices for Plumbing Fixtures 425.2 

Performance Requirements for Trap Seal Primer Valves; Drainage Type 1002.4 

Performance Requirements for Reduced Pressure Detector Fire Protection Backflow 

Prevention Assemblies Table 608.1, 608.13.2 

Performance Requirements for Double Check Detector Fire Protection Backflow 

Prevention Assemblies Table 608.1, 608.13.7 

Performance Requirements for Air Admittance Valves for Plumbing Drainage Systems- 
Fixture and Branch Devices 917.1 

Performance Requirements for Hose Connection Backflow Preventers Table 608.1, 608.13.6 

Performance Requirements for Chemical Dispensing Systems 608. 13.9 

Performance Requirements for Back Siphonage Vacuum Breaker Table 608. 1 , 608. 13.5, 608. 13.8 

Performance Requirements for Outdoor Enclosures for Backflow Prevention Assemblies 608.14.1 

Performance Requirements for Temperature Actuated, Flow Reduction Valves to 

Individual Fixture Fittings 424.5 

Performance Requirements for Individual Pressure Balancing In-Line Valves for Individual Fixture Fittings 604.1 1 

Performance Requirements for Testing Reduced Pressure Principle Backflow Prevention Assembly (RPA) and 

Reduced Pressure Fire Protection Principle Backflow Preventers (RFP) 312.9.2 

Performance Requirements for Testing Double Check Valve Backflow Prevention Assembly (DCVA) 312.9.2 

Performance Requirements for Testing Pressure Vacuum Breaker Assembly (PVBA) 312.9.2 

Performance Requirements for Testing Reduced Pressure Detector Fire Protection 

Backflow Prevention Assemblies (RPDF) 312.9.2 

Performance Requirements for Testing Double Check Valve Detector Assembly (DCDA) 312.9.2 

Performance Requirements for Testing Hose Connection Backflow Preventers 312.9.2 

Performance Requirements for Testing Spill Resistant Vacuum Breaker 312.9.2 



ASTM International 

100 Ban- Harbor Drive 

West Conshohocken, PA 19428-2959 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



A 53/A 53M— 01 
A 74— 98 
A312/A312M— 01 

A 733—01 
A 778— 01 

A888— 98el 

B32— 00 
B 42—98 
B 43—98 
B 75—99 

B 88— 99el 

B 152/B 152M— 00 
B 251—97 

B302— OO 
B 306—99 
B 447— 00 
B 687—99 



Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated Welded and Seamless Table 605.3, 

Table 605.4, Table 702.1 

Specification for Cast Iron Soil Pipe and Fittings Table 702. 1, Table 702.2, Table 702.3, 

Table 702.4, 708.2, Table 1 102.4, Table 1 102.5. Table 1 102.7 

Specification for Seamless and Welded Austenitic Stainless Steel Pipes Table 605.4, Table 605.5, 

Table 605.6, 605.23.2 

Specification for Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe Nipples Table 605.8 

Specification for Welded Unannealed Austenitic Stainless Steel Tubular Products Table 605.4, 

Table 605.5, Table 605.6 
Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and 

Vent Piping Application Table 702.1, Table 702.2, Table 702.3, 

Table 702.4, Table 1 102.4, Table 1 102.5, Table 1 102.7 

Specification for Solder Metal 605.14.3, 605.15.4, 705.9.3, 705.10.3 

Specification for Seamless Copper Pipe, Standard Sizes Table 605.3, Table 605.4, Table 702. 1 

Specification for Seamless Red Brass Pipe, Standard Sizes Table 605.3, Table 605.4, Table 702.1 

Specification for Seamless Copper Tube Table 605.3, Table 605.4, Table 702.1, Table 702.2, 

Table 702.3, Table 1102.4 

Specification for Seamless Copper Water Tube Table 605.3, Table 605.4, Table 702.1, 

Table 702.2, Table 702.3, Table 1 102.4 

Specification for Copper Sheet, Strip Plate and Rolled Bar 402.3, 425.3.3, 417.5.2.4, 902.2 

Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube Table 605.3,Table 605.4, 

Table 702.1 , Table 702.2, Table 702.3, Table 1 102.4 

Specification for Threadless Copper Pipe, Standard Sizes Table 605.3, Table 605.4, Table 702.1 

Specification for Copper Drainage Tube (DWV) Table 702. i , Table 702.2, Table 1 102.4 

Specification for Welded Copper Tube Table 605.3, Table 605.4 

Specification for Brass, Copper, and Chromium-Plated Pipe Nipples Table 605.8 



B813— OOeOl 

B 828— 00 

C4— 00 
C14— 99 
C76— 00 
C 296— 00 
C 425—01 
C 428—97 
C 443—01 
C 508—00 
C 564— 97 
C 700— 00 

C 1053—00 

C 1173-97 
C 1277—97 
C 1440—99 

C 1460—00 

C 1461—00 

D 1527—99 
D 1785—99 
D 1869—95(2000) 
D 2235—01 

D 2239—01 
D 2241—00 
D 2282—99 
D 2464—99 
D 2466—01 
D 2467—99 
D 2468— 96a 
D 2564— 96a 
D 2609—00 
D 2657—97 
D 2661—01 

D 2662— 96a 

D 2665—01 

D 2666— 96a 
D 2672— 96a 
D 2729— 96a 
D 2737—01 
D 2751— 96a 

D 2846/D 2846M— 99 

D 2855—96 



Specification for Liquid and Paste Fluxes for Soldering of Copper and 
Copper Alloy Tube 605.14.3, 605.15.4, 705.9.3, 705.10.3 

Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings 605.14.3, 

605.15.4,705.9.3,705.10.3 

Specification for Clay Drain Tile and Perforated Clay Drain Tile Table 702.3, Table 1 102.4, Table 1 102.5 

Specification for Concrete Sewer, Storm Drain, and Culvert Pipe Table 702.3, Table 1102.4 

Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe Table 702.3, Table 1 102.4 

Specification for Asbestos-Cement Pressure Pipe Table 605.4 

Specification for Compression Joints for Vitrified Clay Pipe and Fittings 705.15, 705.16 

Specification for Asbestos-Cement Nonpressure Sewer Pipe Table 702.2, Table 702.3, Table 1102.4 

Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets 705.6, 705.16 

Specification for Asbestos-Cement Underdrain Pipe Table 1 102.5 

Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings 705.5.2, 705.5.3, 705.16 

Specification for Vitrified Clay Pipe, Extra Strength, Standard Strength, and Perforated Table 702.3, Table 1 102.4, 

Table 1 102.5 

Specification for Borosilicate Glass Pipe and Fittings for Drain, Waste, and 

Vent (DWV) Applications Table 702.1, Table 702.4 

Specification for Flexible Transition Couplings for Underground Piping System 705.7.1, 705.14.1, 705.16 

Specification for Shielded Coupling Joining Hubless Cast Iron Soil Pipe and Fittings 705.5.3 

Specification for Thermoplastic Elastomeric (TPE) Gasket Materials for Drain, Waste, 
and Vent (DWV), Sewer, Sanitary and Storm Plumbing Systems 705.16 

Specification for Shielded Transition Couplings for Use with Dissimilar DWV Pipe 

and Fittings Above Ground 705. 16 

Specification for Mechanical Couplings Using Thermoplastic Elastomeric (TPE) Gaskets for 
Joining Drain, Waste, and Vent (DWV) Sewer, Sanitary and Storm Plumbing Systems 
for Above and Below Ground Use 705.16 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe, Schedules 40 and 80 Table 605.3 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80 and 120 Table 605.3 

Specification for Rubber Rings for Asbestos-Cement Pipe 605.1 1, 605.22, 705.3, 705.16 

Specification for Solvent Cement for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe and 

Fittings 605.10.2, 705.2.2, 705.7.2 

Specification for Polyethylene (PE) Plastic Pipe (SIDR-PR) Based on Controlled Inside Diameter Table 605.3 

Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR-Series) Table 605.3 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe (SDR-PR) Table 605.3 

Specification for Threaded Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80 Table 605.5, Table 1102.7 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40 Table 605.5, Table 1 102.7 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings. Schedule 80 Table 605.5, Table 1 102.7 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe Fittings, Schedule 40 Table 605.5, Table 1102.7 

Specification for Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems 605.21.2, 705.8.2, 705.14.2 

Specification for Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe Table 605.5, Table 1 102.7 

Standard Practice for Heat Fusion-Joining of Polyolefin Pipe and Fitting 605. 19.2, 605.20.2 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Schedule 

40 Plastic Drain, Waste, and Vent Pipe and Fittings Table 702.1, Table 702.2, Table 702.3, Table 702.4, 

705.2.2, 705.7.2, Table 1 102.4, Table 1102.7 

Specification for Polybutylene (PB) Plastic Pipe (SDR-PR) Based on Controlled 

Inside Diameter Table 605.3 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings Table 702.1, 

Table 702.2, Table 702.3, Table 702.4, Table 1102.4, Table 1102.7 

Specification for Polybutylene (PB) Plastic Tubing Table 605.3 

Specification for Joints for IPS PVC Pipe Using Solvent Cement Table 605.3 

Specification for Poly (Vinyl Chloride) (PVC) Sewer Pipe and Fittings Table 1 102.5 

Specification for Polyethylene (PE) Plastic Tubing Table 605.3 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Sewer Pipe and Fittings Table 702.3, 

Table 1102.4 

Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot and Cold Water 

Distribution Systerhs Table 605.3, Table 605.4, 605.16.2 

Standard Practice for Making Solvent-Cemented Joints with 

Poly (Vinyl Chloride) (PVC) Pipe and Fittings 605.21 .2, 705.8.2, 705.14.2 



IREFERiMCED SMMD/«\1RDS 



D 2949— 00a 

D 3034—00 

D 3139—98 
D 32 12— 96a 

D 3309— 96a 

D 331 1—94 
D 4068—01 

4551—96(2001) 

F 405— 97 
F 409— 99a 

F 437— 99 

F 438— 01 

F 439—01 

F441/F441M— 99 

F 442/F 442M— 99 

F 477— 99 
F 493— 97 
F 628—01 

F 656— 96a 

F714— 00 
F 876— 00 
F 877—00 

F 891— 00 

F 1281— eOl 

F 1282— Ola 
F 1488—00 
F 1807—99 

F 1866—98 

F 1960—99 

F 1974—00 

F 2080—01 



ASTM — eomiiliiniyed 
Specification for 3.25-In Outside Diameter Poly (Vinyl Chloride) (PVC) 

Plastic Drain, Waste, and Vent Pipe and Fittings Table 702.1, Table 702.2, Table 702.3 

Specification for Type PSM Poly (Vinyl Chloride) (PVC) Sewer Pipe and Fittings Table 702.3, 

Table 702.4, Table 1 102.4 

Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals 605.10.1, 605.21.1 

Specification for Joints for Drain and Sewer Plastic Pipes Using Flexible Elastomeric Seals 705.2.1, 

705.7.1,705.8.1,705.14.1 

Specification for Polybutylene (PB) Plastic Hot and Cold Water Distribution Systems Table 605.3, Table 605.4, 

605.19.2,605.19.3 

Specification for Drain, Waste and Vent (DWV) Plastic Fittings Patterns Table 702.4 

Specification for Chlorinated Polyethlene (CPE) Sheeting for Concealed Water- 
Containment Membrane 417.5.2.2 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Flexible Concealed Water- 
Containment Membrane 417.5.2.1 

Specification for Corrugated Polyethylene (PE) Tubing and Fittings Table 1 102.5 

Specification for Thermoplastic Accessible and Replaceable Plastic Tube and 

Tubular Fittings 424.1.2, Table 1 102.7 

Specification for Threaded Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, 

Schedule 80 Table 605.5, Table 1 102.7 

Specification for Socket-Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, 

Schedule 40 Table 605.5, Table 1 102.7 

Specification for Socket-Type Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, 

Schedule 80 Table 605.5, Table 1102.7 

Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe, Schedules 40 and 80 Table 605.3, Table 605.4 

Table 605.5 

Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe (SDR-PR) Table 605.3, 

Table 605.4, Table 605.5 

Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe 605.22, 705.16 

Specification for Solvent Cements for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe and Fittings 605.16.2 

Specification for Acrylonitrile-Butadiene-Styrene (ABS) Schedule 40 Plastic Drain, 

Waste, and Vent Pipe with a Cellular Core Table 702.1, Table 702.2, Table 702.3, Table 702.4, 

705.2.2, 705.7.2, Table 1102.4 
Specification for Primers for Use in Solvent Cement Joints of Poly (Vinyl Chloride) 

(PVC) Plastic Pipe and Fittings 605.21.2, 705.8.2, 705.14.2 

Specification for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter Table 702.3 

Specification for Cross-linked Polyethylene (PEX) Tubing Table 605.3 

Specification for Cross-linked Polyethylene (PEX) Plastic Hot and Cold Water 

Distribution Systems Table 605.3, Table 605.4 

Specification for Coextruded Poly (Vinyl Chloride) (PVC) Plastic Pipe with a Cellular Core Table 702.1, 

Table 702.2, Table 702.3, Table 702.4, Table 1 102.4, Table 1 102.5 
Specification for Cross-Linked Polyethylene/Aluminum/Cross-Linked Polyethylene 

(PEX-AL-PEX) Pressure Pipe Table 605.3, Table 605.4 

Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe Table 605.3, Table 605.4 

Specification for Coextruded Composite Pipe Table 702.1, Table 702.2, Table 702.3 

Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-linked 

Polyethylene (PEX) Tubing Table 605.5, 605.17.2 

Specification for Poly (Vinyl Chloride) (PVC) Plastic Schedule 40 Drainage and 

DWV Fabricated Fittings Table 702.4 

Specification for Cold Expansion Fittings with PEX Reinforcing Rings for use with 

Cross-linked Polyethylene (PEX) Tubing Table 605.5 

Specification for Metal Insert Fittings for Polyethylene/Aluminum/Polyethylene and Cross-linked 

Polyethylene/Aluminum/Cross-linked Polyethylene Composite Pressure Pipe Table 605.5 

Specifications for Cold-Expansion Fittings with Metal Compression-Sleeves for 

Cross-linked Polyethylene (PEX) Pipe Table 605.5 



American Welding Society 
550 N.W. LeJeune Road 
Miami, FL 33 126 



Standard 

Reference 

Number 



Title 



Referenced 

in code 

section number 



A5.8— 92 



Specifications for Filler Metals for Brazing and Braze Welding 605.12.1, 605.14.1, 605.15.1, 705.4.1, 705.9.1, 705.10.1 



?0)O3 JMTEeMATDOMAL IFLUMBllMG CODE® 



REFERENCED STANDARDS 



AWWA 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



CI 04— 95 
Clio— 98 

cm— 00 

CI 15— 99 
C151— 96 
C153— 00 
C5 10—00 
C511— 00 
C651— 99 
C652— 92 



American Water Works Association 
6666 West Quincy Avenue 
Denver, CO 80235 

Title 

Standard for Cement-Mortar Lining for Ductile-Iron 

Pipe and Fittings for Water 605.3, 605.5 

Standard for Ductile-Iron and Gray-Iron Fittings, 

3 Inches through 48 Inches, for Water Table 605.5, Table 702.4, Table 1 102.7 

Standard for Rubber-Gasket Joints for Ductile-Iron 

Pressure Pipe and Fittings 605. 13 

Standard for Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges Table 605.3 

Standard for Ductile-Iron Pipe, Centrifugally Cast for Water Table 605.3 

Standard for Ductile-Iron Compact Fittings for Water Service Table 605.5 

Double Check Valve Backflow Prevention Assembly Table 608.1, 608.13.7 

Reduced-Pressure Principle Backflow Prevention Assembly Table 608.1, 608.13.2, 608.16.2 

Disinfecting Water Mains 610.1 

Disinfection of Water-Storage Facilities 610.1 



CISPI 



Cast Iron Soil Pipe Institute 
5959 Shallowford Road, Suite 419 
Chattanooga, TN 3742 1 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



301 — 00 Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and 

Storm Drain, Waste and Vent Piping Applications Table 702.1, Table 702.2, Table 702.3, Table 702.4, 

Table 1 102.4, Table 1 102.5, Table 1 102.7 
310 — 97 Specification for Coupling for Use in Connection with Hubless Cast Iron Soil Pipe and Fittings 

for Sanitary and Storm Drain, Waste and Vent Piping Applications 705.5.3 



CSA 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



B45.1— 99 
B45.2— 99 
B45.3— 99 
B45.4— 99 
B45.5— 99 
B45.9— 99 
B45.10— 01 
B64.7— 94 
879—94(2000) 
B 125— 98 
B 137. 1—99 
B 137.2— 99 
B 137.3—99 
B 137.5— 99 

B 137.6—99 

B181.1— 99 

B] 81. 2— 99 

B 182. 1—99 



Canadian Standards Association 

178 Rexdale Blvd. 

Rexdale (Toronto), Ontario, Canada M9W 1R3 

Title 

Ceramic Plumbing Fixtures 408.1, 416.1, 418.1, 419.1, 420.1 

Enameled Cast-Iron Plumbing Fixtures 407.1,415.1,416.1,418.1 

Porcelain Enameled Steel Plumbing Fixtures 407.1, 416.1, 418.1 

Stainless-Steel Plumbing Fixtures 415.1,416.1,418.1,420.1 

Plastic Plumbing Fixtures 407.1, 416.2, 417.1,-419.1, 420.1, 421.1 

Macerating Systems and Related Components 712.4.1 

Hydromassage Bathtubs 42 1 . 1 

Vacuum Breakers, Laboratory Faucet Type (LFVB) Table 608.1, 608.13.6 

Roor, Area and Shower Drains, and Cleanouts for Residential Construction 412.1 

Plumbing Fittings 424.1, 424.3, 424.4, 425.3.1, 425.4, Table 608.1 

Polyethylene Pipe, Tubing and Fittings for Cold Water Pressure Services Table 605.3 

PVC Injection-Moulded Gasketed Fittings for Pressure Applications Table 605.5, Table 1 102.7 

Rigid Poly (Vinyl Chloride) (PVC) Pipe for Pressure Applications Table 605.3, 605.21.2, 705.8.2, 705.14.2 

Cross-Linked Polyethylene (PEX) Tubing Systems for Pressure Applications — with Revisions through 

September 1992 Table 605.3, Table 605.4 

CPVC Pipe, Tubing and Fittings for Hot and Cold Water Distribution Systems — with Revisions through 

May 1986 Table 605.3, Table 605.4 

ABS Dram, Waste, and Vent Pipe and Pipe Fittings Table 702.1, Table 702.2, 

Table 702.4, 705.2.2, 705.7.2, 715.2 
PVC Drain, Waste, and Vent Pipe and Pipe Fittings — with Revisions 

through December 1993 Table 702.1, Table 702.2. 705.8.2, 705.14.2, 715.2 

Plastic Drain and Sewer Pipe and Pipe Fittings 705.8.2, 705. 14.2 



96 



2003 INTERNATIONAL PLUMEMNG CODE® 



B 182.2— 99 

CAN3-B137.8M- 



-99 



CAN/CSA-A257. 1 M— 92 
CAN/CSA-A257.2M— 92 
CAN/CSA-A257.3M— 92 

CAN/CSA-B64.1.1— 01 
CAN/CSA-B64,2— 01 
CAN/CSA-B64.2.2— 01 
CAN/CSA-B64.3— 01 

CAN/CSA-B64.4— 01 
CAN/CSA-B64. 10—01 
CAN/CSA-B 137.9— 99 
CAN/CSA-B137.10M— 99 
CAN/CSA-B 18 1.3— 99 
CAN/CSA-B 182.4—99 
CAN/CSA-B602— 99 



REFEBEMCED STAWDARDI 



ASTR/3 — contmyedl 

PVC Sewer Pipe and Fittings (PSM Type) Table 702.3, Table 1 102.4, Table 1 102.5 

Polybutylene (PB) Piping for Pressure Applications — with Revisions through 

July 1992 Table 605.3, Table 605.4, 605. 19.2, 605. 19.3 

Circular Concrete Culvert, Storm Drain, Sewer Pipe and Fittings Table 702.3, Table 1 102.4 

Reinforced Circular Concrete Culvert, Storm Drain, Sewer Pipe and Fittings Table 702.3, Table 1 102.4 

Joints for Circular Concrete Sewer and Culvert Pipe, Manhole Sections, and Fittings Using 

Rubber Ga.skets 705.6, 705.16 

Vacuum Breakers, Atmospheric Type (AVB) 425.2, Table 608.1, 608.13.6 

Vacuum Breakers, Hose Connection Type (HCVB) Table 608.1, 608.13.6 

Vacuum Breakers, Hose Connection Type (HCVB) with Automatic Draining Feature Table 608.1, 608.13.6 

Backflow Preventers, Dual Check Valve Type with Atmospheric Port (DCAP) Table 608.1, 608.13.3, 

608.16.2 

Backflow Preventers, Reduced Pressure Principle Type (RP) Table 608.1, 608.13.2, 608.16.2 

Manual for the Selection, Installation, Maintenance and Field Testing of Backflow Prevention Devices 312.9.2 

Polyethylene/Aluminum/Polyethylene Composite Pressure Pipe Systems Table 605.3 

Cross-linked Polyethylene/Aluminum/Polyethylene Composite Pressure Pipe Systems Table 605.3, Table 605.4 

Polyolefm Laboratory Drainage Systems Table 702. 1, Table 702.2 

Profile PVC Sewer Pipe and Fittings Table 702.3, Table 1 102.4, Table 1 102.5 

Mechanical Couplings for Drain, Waste, and Vent Pipe and Sewer Pipe 705.2. 1, 705.5.3, 705.6, 



705.7.1,705.14.1,705.15,705.16 



Federal Specification 

1941 Jefferson Davis Highway, Suite 104 

Arlington, VA 22202 



Standard 

Reference 

Number 



Title 



Referenced 

in code 

section number 



TT-P-1536A(1975) 



Federal Specification for Plumbing Fixture Setting Compound 405.4 



* Standards are available from the Supt. of Documents, U.S. Government Printing Office, Washington, DC 20402-9325. 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



IBC— 03 

ICC EC— 03 
lEBC— 03 
lECC— 03 
IFC— 03 
IFGC— 03 
IMC— 03 
IPSDC— 03 
IRC— 03 



International Code Council 
5203 Leesburg Pike, Suite 600 
Falls Church, VA 22041 

Title 

International Building Code® 201.3, 305.4, 307.1, 307.2, 307.3, 308.2, 309.1. 310.1, 

310.3, 403.1, Table 403.1, 404.1, 407.3, 417.6, 502.6, 606.5.2, 1 106.5 

ICC Electrical Code® 201.3,502.1,504.3, 1113.1.3 

International Existing Building Code® 101 .2 

International Energy Conservation Code® 313.1, 607.2, 607.2. 1 

International Fire Code® 201.3, 1201.1 

International Fuel Gas Code® 101.2, 201.3, 502.1 

International Mechanical Code® 201.3, 307.6, 310.1, 422.9, 502.1, 612.1, 1202.1 

International Private Sewage Disposal Code® 701 .2 

International Residential Code® 101 .2 



Industry Safety Equipment Association 
1901 N. Moore Street, Suite 808 
AHington, VA 22209 



Standard 

Reference 

Number 



Title 



Referenced 

in code 

section number 



Z358.I— 98 



Emergency eyewash and shower equipment 411.1 



2003 IWTERMATIOWAL PLUMBING CODE® 



ICC EC— 03 
lEBC— 03 
lECC— 03 
IFC— 03 
IFGC— 03 
IMC— 03 
IPSDC— 03 
IRC— 03 



ICC — continued 

ICC Electrical Code® Administrative Provisions 201.3,502.1,504.3, 1113.1.3 

International Existing Building Code® 101.2 

International Energy Conservation Code® 313.1, 607.2, 607.2.1 

International Fire Code® 201.3, 1201.1 

International Fuel Gas Code® 101.2, 201.3, 502.1 

International Mechanical Code® 201.3, 307.6, 310.1, 422.9, 502.1, 612.1, 1202.1 

International Private Sewage Disposal Code® '. 701.2 

International Residential Code® 101.2 



II 



Industry Safety Equipment Association 
1901 N. Moore Street, Suite 808 
Arlington, VA 22209 



Standard 

Reference 

Number 



Title 



Referenced 

in code 

section number 



Z358.1— 98 



Emergency eyewash and shower equipment 411.1 



IFPA 



50—01 
51—97 
70—99 
99C— 99 



National Fire Protection Association 
Batterymarch Park 
Quincy, MA 02269 

Title 

Bulk Oxygen Systems at Consumer Sites 1203.1 

Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes 1203.1 

National Electrical Code 502.1, 504.3, 1113.1.3 

Gas and Vacuum Systems 1 202. 1 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



NSF 



Standard 




Referenced 


Reference 




in code 


Number 


Title 


section number 



3—1996 

18— 1996a 

14—1999 

42—2000 

44—2000 

53—2001 

58—2001 

61—2001 

62—1999 



NSF International 
789 Dixboro Road 
Ann Arbor, MI 48 105 

Title 

Commercial Spray-Type Dishwashing and Glasswashing Machines 409. 1 

Manual Food and Beverage Dispensing Equipment 426.1 

Plastic Piping System Components and Related Materials 303.3, 611.3 

Drinking Water Treatment Units — Aesthetic Effects 611.1, 611.3 

Residential Cation Exchange Water Softeners 611.1, 611.3 

Drinking Water Treatment Units — Health Effects 611.1, 611.3 

Reverse Osmosis Drinking Water Treatment Systems 611.2 

Drinking Water System Components— Health Effects 424.1, 605.3, 605.4, 605.5, 611.3 

Drinking Water Distillation Systems 611.1 



FBI 



Plumbing and Drainage Institute 
800 Turnpike Street, Suite 300 
North Andover, MA 01845 



Standard 

Reference 

Number 



Title 



Referenced 

in code 

section number 



G101(1998) 



Testing and Rating Procedure for Grease Interceptors with Appendix of Sizing and Installation Data 1003.3.4 



98 



2003 INTERNATIONAL PLUMBING CODE® 



APFEMDK h 



Pgcmot 

1. For issuing each permit 

2. For issuing each supplemental pemiit 



F®© S©h®dlyBe 

For each plumbing fixture or trap or set of fixtures on one trap (including water, drainage 

piping and backflow protection thereof) 

For each building sewer and each trailer park sewer 

Rainwater systems — per drain (inside building) 

For each cesspool (where permitted) 

For each private sewage disposal system 

For each water heater and/or vent 

For each industrial waste pretreatment interceptor including its trap and vent, excepting 

kitchen-type grease interceptors functioning as fixture traps 

For installation, alteration or repair of water-piping and/or water-treating equipment, each 
For repair or alteration of drainage or vent piping, each fixture 

For each lawn sprinkler system on any one meter including backflow protection 

devices therefor 

For atmospheric-type vacuum breakers not included in Item 2: 

1 to 5 

over 5, each 

12. For each backflow protective device other than atmospheric-type vacuum breakers: 

2 inches (5 1 mm) and smaller 

Over 2 inches (51 mm) 



ii@[r Bnisp©©tQ@riit aoud F©@s 

1. Inspections outside of normal business hours per hour 

(minimum charge two hours) 

2. Reinspection fee assessed under provisions of Section 107.3.3 each 

3. Inspections for which no fee is specifically indicated per hour 

(minimum charge one-half hour) 

4. Additional plan review required by changes, additions or revisions to approved 

plans (minimum charge one-half hour) per hour 



2003 JMTEeW^TJOWAL PLUMBIIMQ CODE® 



1W 2003 INTERNATIOMAL PLUMBrNG CODE® 



APPENDIX B 



iAINFALL 



Rainfall rates, in inches per hour, are based on a storm of one-hour duration and a 1 00-year return period. The rainfall rates shown in 
the appendix are derived from Figure 1106.1. 



Birmingham 3.8 

Huntsville 3.6 

Mobile 4.6 

Montgomery 4.2 

Fairbanks I.O 

Juneau 0.6 

Flagstaff 2.4 

Nogales 3.1 

Phoenix 2.5 

Yuma 1.6 

Fort Smith 3.6 

Little Rock 3.7 

Texarkana 3.8 

Mformia: 

Barstow 1.4 

Crescent City 1.5 

Fresno 1.1 

Los Angeles 2. 1 

Needles 1.6 

Placerville 1.5 

San Fernando 2.3 

San Francisco 1.5 

Yreka 1 .4 

Craig 1.5 

Denver 2.4 

Durango 1.8 

Grand Junction .... 1 .7 

Lamar 3.0 

Pueblo 2.5 

Hartford 2.7 

New Haven 2.8 

Putnam 2.6 

lawfflir®: 

Georgetown 3.0 

Wilmington 3.1 

ifrkS off Colombia: 

Washington 3.2 

irida: 

Jacksonville 4.3 

Key West 4.3 

Miami 4.7 

Pensacola 4.6 

Tampa 4.5 



Atlanta 3.7 

Dalton 3.4 

Macon 3.9 

Savannah 4.3 

Thomasville 4.3 

waii: 

Hilo 6.2 

Honolulu 3.0 

Wailuku 3.0 

Boise 0.9 

Lewiston 1.1 

Pocatello 1.2 

Cairo 3.3 

Chicago 3.0 

Peoria 3.3 

Rockford 3.2 

Springfield 3.3 

Evansville 3.2 

Fort Wayne 2.9 

Indianapolis 3.1 

mt 

Davenport 3.3 

Des Moines 3.4 

Dubuque 3.3 

Sioux City 3.6 

Atwood 3.3 

Dodge City 3.3 

Topeka 3.7 

Wichita 3.7 

istacky; 

Ashland 3.0 

Lexington 3.1 

Louisville 3.2 

Middlesboro 3.2 

Paducah 3.3 

misiaiiQisi: 

Alexandria 4.2 

Lake Providence ... 4.0 
New Orleans. ... 4.8 
Shreveport 3.9 

iiEiie: 

Bangor 2.2 

Houlton 2.1 

Portland 2.4 



Baltimore 3.2 

Hagerstown 2.8 

Oakland 2.7 

Salisbury 3.1 

Boston 2.5 

Pittsfield 2.8 

Worcester 2.7 

tMg&m 

Alpena 2.5 

Detroit 2.7 

Grand Rapids 2.6 

Lansing 2.8 

Marquette 2.4 

Sauk Ste. Marie ... 2.2 

Duluth 2.8 

Grand Marais 2.3 

Minneapolis 3.1 

Moorhead 3.2 

Worthington 3.5 

ssissippi: 

Biloxi 4.7 

Columbus 3.9 

Corinth 3.6 

Natchez 4.4 

Vicksburg 4.1 

Columbia 3.2 

Kansas City 3.6 

Springfield 3.4 

St. Louis 3.2 

Ekalaka 2.5 

Havre 1 .6 

Helena 1.5 

Kalispell 1.2 

Missoula 1.3 

braskai: 

North Platte 3.3 

Omaha 3.8 

Scottsbluff 3.1 

Valentine 3.2 

Elko 1.0 

Ely 1.1 

Las Vegas 1.4 

Reno 1.1 



Berlin 2.5 

Concord 2.5 

Keene 2.4 

iw JIfiirsey: 

Atlantic City 2.9 

Newark 3.1 

Trenton 3.1 

!W MexEC®: 

Albuquerque 2.0 

Hobbs 3,0 

Raton 2.5 

Roswell 2.6 

Silver City 1.9 

iw York: 

Albany 2.5 

Binghamton 2.3 

Buffalo 2.3 

Kingston 2.7 

New York 3.0 

Rochester 2.2 

)rtiii CaroEma: 

Asheville 4.1 

Charlotte 3.7 

Greensboro 3.4 

Wilmington 4.2 

)nt!hi Dakota: 

Bismarck 2.8 

Devils Lake 2.9 

Fargo 3.1 

Williston 2.6 

aio: 

Cincinnati 2.9 

Cleveland 2.6 

Columbus 2.8 

Toledo 2.8 

Oklalhoma: 

Altus 3.7 

Boise City 3.3 

Durant 3.8 

Oklahoma City . . . . 3.8 

Baker 0.9 

Coos Bay 1.5 

Eugene 1.3 

Portland 1.2 



2003 BS^TERWATIOSVIAL PLUMBING CODE® 



101 



APPEIMOIX B 



Peimsylvaeia: 

Erie 2.6 

Harrisburg 2.8 

Philadelphia 3.1 

Pittsburgh 2.6 

Scranton 2.7 

Rhode Island: 

Block Island 2.75 

Providence 2.6 

South Carolina: 

Charleston 4.3 

Columbia 4.0 

Greenville 4.1 

South Dakota: 

Buffalo 2.8 

Huron 3.3 

Pierre 3.1 

Rapid City 2.9 

Yankton 3.6 

TsMiessee: 

Chattanooga 0.5 

Knoxville 3.2 

Memphis 3.7 

Nashville 3.3 

xas: 

Abilene 3.6 

Amarillo 3.5 

Brownsville 4.5 

Dallas 4.0 

Del Rio 4.0 

El Paso 2.3 

Houston 4.6 



Lubbock 3.3 

Odessa 3.2 

Pecos 3.0 

San Antonio 4.2 

Utah: 

Brigham City 1.2 

Roosevelt 1.3 

Salt Lake City .... 1.3 

St. George 1.7 

Vermont: 

Barre 2.3 

Bratteboro 2.7 

Burlington 2.1 

Rutland 2.5 



Virginia: 

Bristol 2.7 

Charlottesville .... 2.8 

Lynchburg 3.2 

Norfolk 3.4 

Richmond 3.3 



Wasliingtom: 

Omak 1.1 

Port Angeles 1.1 

Seattle L4 

Spokane 1.0 

Yakima 1.1 



West Virginia: 

Charleston 2.8 

Morgantown 2.7 



Ashland 2.5 

Eau Claire 2.9 

Green Bay 2.6 

La Crosse 3.1 

Madison 3.0 

Milvi^aukee 3.0 

iog: 

Cheyenne 2.2 

FortBridger 1.3 

Lander 1.5 

New Castle 2.5 

Sheridan 1.7 

Yellowstone Park ... 1 .4 



102 



2003 IMTERMATtONAL PLUMBIiNG CODE® 



mm wMEe Kievou 



3YST[ 



' Section 301.3 of this code requires all plumbing fixtures that receive water or waste to discharge to the sanitary drainage sys- 
tem of the structure. In order to allow for the utilization of a gray water recycling system, Section 301. 3 should be revised to read as 
follows: 



l@ system. All plumbing fixtures, drains, appurtenances and appliances used to receive or dis- 
charge liquid wastes or sewage shall be directly connected 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 . 

EscepMom; Bathtubs, showers, lavatories, clothes washers and laundry sinks shall not be required to discharge to the sanitary 
drainage system where such fixtures discharge to an approved gray water recycling system. 



QUm WkTEn ^ECVCLDMa SYSTEMS 

Gemeirail. Gray water recycling systems shall receive 
the waste discharge only of bathtubs, showers, lavatories, 
clothes washers and laundry sinks. Recycled gray water shall 
be utilized only for flushing water closets and urinals that are 
located in the same building as the gray water recycling system. 
Such systems shall comply with Sections CIO 1.2 through 
C101.12. 

Escepltnoms Gray water systems shall be permitted to be 
used for irrigation when specific approval is given by the au- 
thority having jurisdiction. Such systems shall be designed 
as required by Section 105. 

C1(I])L2 lEDefEiMno)!!. The following term shall have the meaning 
shown herein. 

GRAY WATER. Waste water discharged from lavatories, 
bathtubs, showers, clothes washers and laundry sinks. 

CKDLS Imstollatnoira, All drain, waste and vent piping associ- 
ated with gray water recycling systems shall be installed in fiiU 
compliance with this code. 

C10L4 Reservonir, Gray water shall be collected in an 
approved reservoir constructed of durable, nonabsorbent and 
corrosion-resistant materials. The reservoir shall be a closed 
and gas-tight vessel. Access openings shall be provided to al- 
low inspection and cleaning of the reservoir interior. The hold- 
ing capacity of the reservoir shall be a minimum of twice the 
volume of water required to meet the daily flushing require- 
ments of the fixtures supplied with gray water, but not less than 
50 gallons (189 L). The reservoir shall be sized to limit the re- 
tention time of gray water to 72 hours maximum. 

CI (OILS Fitratiomi, Gray water entering the reservoir shall pass 
through an approved filter such as a media, sand or 
diatomaceous earth filter. 

CW1£ Bisfimfecilnomio Gray water shall be disinfected by an ap- 
proved method that employs one or more disinfectants such as 
chlorine, iodine or ozone. 



CWIJ Makeup water. Potable water shall be supplied as a 
source of makeup water for the gray water system. The potable 
water supply shall be protected against backflow in accordance 
with Section 608. TTiere shall be a full-open valve on the 
makeup water supply line to the reservoir. 

Cl(ffiL§ Overflow. The collection reservoir shall be equipped 
with an overflow pipe of the same diameter as the influent pipe 
for the gray water. The overflow shall be directly connected to 
the sanitary drainage system. 

C1®L9 Branim. A drain shall be located at the lowest point of 
the collection reservoir and shall be directly connected to the 
sanitary drainage system. The drain shall be the same diameter 
as the overflow pipe required by Section CIO 1.8 and shall be 
provided with a full-open valve. 



. The reservoir shall be provided with a 
vent sized in accordance with Chapter 9 based on the size of the 
reservoir influent pipe. 

ClOLll Coloriinigo The gray water shall be dyed blue or green 
with a food grade vegetable dye before such water is supplied 
to the fixtures. 

C1(D)L12 IdigmitnirkaitDom, All gray water distribution piping and 
reservoirs shall be identified as containing nonpotable water. 
Piping identification shall be in accordance with Section 608.8. 



2003 IWTERNATIIOMAL PLUMBl 



103 



104 2003 INTERNATIONAL PLUMBING CODE® 



IMDK D 

WM M^B DESi©M TEMPERATUI 





DEQI^EE DAY AMD DE 


S8QW TERflPEKATURES® fOH CITSE 


S IN THE UMITEO STOTES 










DES8GN TEMPERATURES 








HEATING 
DEGREE DAYS 


Wind®!- 


Summer 


DEGREES 
NORTH 


STATE 


STATIOW" 


(yearlly ioSaJ) 


S7%% 


Or\f buib Z%% 


Wetbu»b2Vj% 


LATTITUOE*= 


AL 


Birmingham 


2,551 


21 


94 


77 


33°30' 




Huntsville 


3,070 


16 


96 


77 


34°40' 




Mobile 


1,560 


29 


93 


79 


30°40' 




Montgomery 


2,291 


25 


95 


79 


32°20' 


AK 


Anchorage 


10,864 


-18 


68 


59 


6ri0' 




Fairbanks 


14,279 


-47 


78 


62 


64°50' 




Juneau 


9,075 


1 


70 


59 


58°20' 




Nome 


14,171 


-27 


62 


56 


64°30' 


AZ 


Flagstaff 


7,152 


4 


82 


60 


35°10' 




Phoenix 


1,765 


34 


107 


75 


33°30' 




Tuscon 


1,800 


32 


102 


71 


33°10' 




Yuma 


974 


39 


109 


78 


32°40' 


AR 


Fort Smith 


3,292 


17 


98 


79 


35°20' 




Little Rock 


3,219 


20 


96 


79 


34°40' 




Texarkana 


2,533 


23 


96 


79 


33°30' 


CA 


Fresno 


2,611 


30 


100 


71 


36°50' 




Long Beach 


1,803 


43 


80 


69 


33°50' 




Los Angeles 


2,061 


43 


80 


69 


34°00' 




Los Angeles 


1,349 


40 


89 


71 


34°00' 




Oakland 


2,870 


36 


80 


64 


37°40' 




Sacramento 


2,502 


32 


98 


71 


38°30' 




San Diego 


1,458 


44 


80 


70 


32°40' 




San Francisco 


3,015 


38 


77 


64 


37°40' 




San Francisco 


3,001 


40 


71 


62 


37°50' 


CO 


Alamosa 


8,529 


-16 


82 


61 


37°30' 




Colorado Springs 


6,423 


2 


88 


62 


38°50' 




Denver 


6,283 


1 


91 


63 


39°50' 




Grand Junction 


5,641 


7 


94 


63 


39°10' 




Pueblo 


5,462 





95 


66 


38°20' 


CT 


Bridgeport 


5,617 


9 


84 


74 


41°10' 




Hartford 


6,235 


7 


88 


75 


41°50' 




New Haven 


5,897 


7 


84 


75 


4r20' 


DE 


Wilmington 


4,930 


14 


89 


76 


39°40' 


DC 


Washington 


4,224 


17 


91 


77 


38°50' 


FL 


Daytona 


879 


35 


90 


79 


29°10' 




Fort Myers 


442 


44 


92 


79 


26°40' 




Jacksonville 


1,239 


32 


94 


79 


30°30' 




Key West 


108 


57 


90 


79 


24°30' 




Miami 


214 


47 


90 


79 


25°50' 




Orlando 


766 


38 


93 


78 


28°30' 




Pensacola 


1,463 


29 


93 


79 


30°30' 




Tallahassee 


1,485 


30 


92 


78 


30°20' 




Tampa 


683 


40 


91 


79 


28°00' 




West Palm Beach 


253 


45 


91 


79 


26°40' 


GA 


Athens 


2,929 


22 


92 


77 


34°00' 




Atlanta 


2,961 


22 


92 


76 


33°40' 




Augusta 


2,397 


23 


95 


79 


33°20' 




Columbus 


2.383 


24 


93 


78 


32°30' 




Macon 


2,136 


25 


93 


78 


32°40' 




Rome 


3,326 


22 


93 


78 


34°20' 




Savannah 


1,819 


27 


93 


79 


32°10' 


HI 


Hilo 





62 


83 


74 


19°40' 




Honolulu 





63 


86 


75 


21°20' 



(Continued) 



i003 JNTEHMATIOM/^L PLUMBIING GODE® 



iOS 



TABLE D10"8 — eoiraiDiniMisdl 





DEGREE DAY AMD DES8GN TEMPERATURES" FOR CITIES M T^8E UWITED STATES 








heating 
degree days 


DESIGN TEMPERATURES 


DEGREES 
WORTH 


Winter 


Summer 


STATE 


station" 


(yearly toial) 


977,% 


Dry bulb 2Va% 


Wes bulb 27j% 


i^ttitude'' 


ID 


Boise 


5,809 


10 


94 


66 


43°30' 




Lewiston 


5,542 


6 


93 


66 


46°20' 




Pocatello 


7,033 


-1 


91 


63 


43°00' 


IL 


Chicago (Midway) 


6,155 





91 


75 


41°50' 




Chicago (0' Hare) 


6,639 


-4 


89 


76 


42°00' 




Chicago 


5,882 


2 


91 


77 


4P50' 




Molina 


6,408 


-4 


91 


77 


41°30' 




Peoria 


6,025 


-4 


89 


76 


40°40' 




Rockford 


6,830 


-4 


89 


76 


42°10' 




Springfield 


5,429 


2 


92 


77 


39°50' 


IN 


Evansville 


4,435 


9 


93 


78 


38°00' 




Fort Wayne 


6,205 


1 


89 


75 


41°00' 




Indianapolis 


5,699 


2 


90 


76 


39^40' 




South Bend 


6,439 


1 


89 


75 


41°40' 


lA 


Burlington 


6,114 


-3 


91 


77 


40°50' 




Des Moines 


6,588 


-5 


91 


77 


41°30' 




Dubuque 


7,376 


-7 


88 


75 


42°20' 




Sioux City 


6,951 


-7 


92 


77 


42°20' 




Waterloo 


7,320 


-10 


89 


77 


42''30' 


KS 


Dodge City 


4,986 


5 


97 


73 


37°50' 




Goodland 


6,141 





96 


70 


39°20' 




Topeka 


5,182 


4 


96 


78 


39°00' 




Wichita 


4,620 


7 


98 


76 


37°40' 


KY 


Covington 


5,265 


6 


90 


75 


39°00' 




Lexington 


4,683 


8 


91 


76 


38°00' 




Louisville 


4,660 


10 


93 


77 


38°10' 


LA 


Alexandria 


1,921 


27 


94 


79 


31°20' 




Baton Rouge 


1,560 


29 


93 


80 


30°30' 




Lake Charles 


1,459 


31 


93 


79 


30°10' 




New Orieans 


1,385 


33 


92 


80 


30°00' 




Shreveport 


2,184 


25 


96 


79 


32°30' 


ME 


Caribou 


9,767 


-13 


81 


69 


46°50' 




Portland 


7,511 


-1 


84 


72 


43°40' 


MD 


Baltimore 


4,654 


13 


91 


77 


39°10' 




Baltimore 


4,111 


17 


89 


78 


39°20' 




Frederick 


5,087 


12 


91 


77 


39'^20' 


MA 


Boston 


5,634 


9 


88 


74 


42°20' 




Pittsfield 


7,578 


-3 


84 


72 


42°30' 




Worcester 


6,969 


4 


84 


72 


42°20' 


Ml 


Alpena 


8,506 


-6 


85 


72 


45°00' 




Detroit (City) 


6,232 


6 


88 


74 


42°20' 




Escanaba 


8,481 


-7 


83 


71 


45^40' 




Flint 


7,377 


1 


87 


74 


43°00' 




Grand Rapids 


6,894 


5 


88 


74 


42°50' 




Lansing 


6,909 


1 


87 


74 


42°50' 




Marquette 


8,393 


-8 


81 


70 


46°30' 




Muskegon 


6,696 


6 


84 


73 


43°10' 




Sault Ste. Marie 


9,048 


-8 


81 


70 


46^30' 


MN 


Duluth 


10,000 


-16 


82 


70 


46°50' 




Minneapolis 


8,382 


-12 


89 


75 


44°50' 




Rochester 


8,295 


-12 


87 


75 


44°00' 


MS 


Jackson 


2,239 


25 


95 


78 


32°20' 




Meridian 


2,289 


23 


95 


79 


32°20' 




Vicksburg"* 


2,041 


26 


95 


80 


32^20' 



(Continued) 



10S 





DEGOEE DAY AND DES8QM TEMFE^ATUeES* FOR C8TIES 8M THE UWITED STATES 








HEATIWG 
DEGREE DAYS 


DESIGW TEMPERATURES 


DEGREES 
NORTH 


Winter 


Summneir 


STATE 


STATtOW" 


(ysarHy total) 


97Vj% 


Dry buJb 2Vj% 


Wet bulb 2%% 


LATTITUDE*= 


MO 


Columbia 


5,046 


4 


94 


77 


39°00' 




Kansas City 


4,711 


6 


96 


77 


srw 




St. Joseph 


5,484 


2 


93 


79 


39°50' 




St. Louis 


4,900 


6 


94 


77 


38°50' 




St. Louis'* 


4,484 


8 


94 


77 


38°40' 




Springfield 


4,900 


9 


93 


77 


37<'10' 


MT 


Billings 


7,049 


-10 


91 


66 


45°50' 




Great Falls 


7,750 


-15 


88 


62 


47°30' 




Helena 


8,129 


-16 


88 


62 


46°40' 




Missoula 


8,125 


-6 


88 


63 


46°50' 


NE 


Grand Island 
Lincoln 


6,530 


-3 


94 


74 


41°00' 




5,864 


-2 


95 


77 


40°50' 




Norfolk 


6,979 


-4 


93 


77 


42°00' 




North Platte 


6,684 


-4 


94 


72 


41°10' 




Omaha 


6,612 


-3 


91 


77 


41°20' 




Scottsbluff 


6,673 


-3 


92 


68 


41°50' 


NV 


Elko 


7,433 


-2 


92 


62 


40°50' 




Ely 


7,733 


-4 


87 


59 


39°10' 




Las Vegas 


2,709 


28 


106 


70 


36°10' 




Reno 


6,332 


10 


92 


62 


39°30' 




Winnemucca 


6,761 


3 


94 


62 


40°50' 


NH 


Concord 


7,383 


-3 


87 


73 


43°10' 


NJ 


Atlantic City 


4,812 


13 


89 


77 


39°30' 




Newark 


4,589 


14 


91 


76 


40°40' 




Trenton'' 


4,980 


14 


88 


76 


40°I0' 


NM 


Albuquerque 


4,348 


16 


94 


65 


35°00' 




Raton 


6,228 


1 


89 


64 


36°50' 




Roswell 


3,793 


18 


98 


70 


33°20' 




Silver City 


3,705 


10 


94 


64 


32°40' 


NY 


Albany 


6,875 


-1 


88 


74 


42°50' 




Albany** 


6,201 


I 


88 


74 


42°50' 




Binghamton 


7,286 


1 


83 


72 


42° 10' 




Buffalo 


7,062 


6 


85 


73 


43°00' 




NY (Cent. Park)** 


4,871 


15 


89 


75 


40°50' 




NY (Kennedy) 


5,219 


15 


87 


75 


40°40' 




NY (LaGuardia) 


4,811 


15 


89 


75 


40°50' 




Rochester 


6,748 


5 


88 


73 


43°10' 




Schenectady 


6,650 


1 


87 


74 


42°50' 




Syracuse 


6,756 


2 


87 


73 


43°10' 


NC 


Charlotte 


3,181 


22 


93 


76 


35°10' 




Greensboro 


3,805 


18 


91 


76 


36°10' 




Raleigh 


3,393 


20 


92 


77 


35°50' 




Winston-Salem 


3,595 


20 


91 


75 


36°10' 


ND 


Bismarck 


8,851 


-19 


91 


71 


46°50' 




Devils Lake** 


9,901 


-21 


88 


71 


48°10' 




Fargo 


9,226 


-18 


89 


74 


46°50' 




Williston 


9,243 


-21 


88 


70 


48°10' 


OH 


Akron-Canton 
Cincinnati 


6,037 


6 


86 


73 


41°00' 




4,410 


6 


90 


75 


39°10' 




Cleveland 


6,351 


5 


88 


74 


41°20' 




Columbus 


5,660 


5 


90 


75 


40°00' 




Dayton 


5,622 


4 


89 


75 


39°50' 




Mansfield 


6,403 


5 


87 


74 


40°50' 




Sandusky 


5,796 


6 


91 


74 


41°30' 




Toledo 


6,494 1 


88 


75 


41°40' 




Youngstown 


6,417 4 


86 


73 


41°20' 



(Continued) 



2003 INTERMATIOMAL PLOMBSMG CODE® 



107 



APPENDIX D 







TABLE DIO^— conSinysd 










DEGREE DAY AND DESIGN TEMPERATURES" FOR CITIES IN THE UNITED STATES 










DESiGM TEMPERATURES 








HEATING 
DEGREE DAYS 


Winter 


Summer 


DEGREES 
NORTH 


STATE 


STATIOr^" 


(yearly total) 


97Vj% 


Dry bulb 2Vj% 


Wet bulb 2Vj% 


uttitude'= 


OK 


Oklahoma City 


3,725 


13 


97 


77 


35°20' 




Tulsa 


3,860 


13 


98 


78 


36°10' 


OR 


Eugene 


4,726 


22 


89 


67 


44°10' 




Medford 


5,008 


23 


94 


68 


42°20' 




Portland 


4,635 


23 


85 


67 


45°40' 




Portland** 


4,109 


24 


86 


67 


45°30' 




Salem 


4,754 


23 


88 


68 


45°00' 


PA 


Allentown 


5,810 


9 


88 


75 


40°40' 




Erie 


6,451 


9 


85 


74 


42°10' 




Harrisburg 


5,251 


11 


91 


76 


40°10' 




Philadelphia 


5,144 


14 


90 


76 


39°50' 




Pittsburgh 


5,987 


5 


86 


73 


40°30' 




Pittsburgh'' 
Reading 


5,053 


7 


88 


73 


40°30' 




4,945 


13 


89 


75 


40°20' 




Scranton 


6,254 


5 


87 


73 


41°20' 




Williamsport 


5,934 


7 


89 


74 


41°10' 


RI 


Providence 


5,954 


9 


86 


74 


41°40' 


SC 


Charleston 


2,033 


27 


91 


80 


32°50' 




Charleston 


1,794 


28 


92 


80 


32°50' 




Columbia 


2,484 


24 


95 


78 


3 '°00' 


SD 


Huron 


8,223 


-14 


93 


75 


44°30' 




Rapid City 


7,345 


-7 


92 


69 


44°00' 




Sioux Falls 


7,839 


-11 


91 


75 


43°40' 


TN 


Bristol 


4,143 


14 


89 


75 


36°30' 




Chattanooga 


3,254 


18 


93 


77 


35°00' 




Knoxville 


3,494 


19 


92 


76 


35°50' 




Memphis 


3,232 


18 


95 


79 


35°00' 




Nashville 


3,578 


14 


94 


77 


36°10' 


TX 


Abilene 


2,624 


20 


99 


74 


32°30' 




Austin 


1,711 


28 


98 


77 


30°20' 




Dallas 


2,363 


22 


100 


78 


32°50' 




El Paso 


2,700 


24 


98 


68 


31=50' 




Houston 


1,396 


32 


94 


79 


29°40' 




Midland 


2,591 


21 


98 


72 


32°00' 




San Angelo 


2,255 


22 


99 


74 


31°20' 




San Antonio 


1,546 


30 


97 


76 


29°30' 




Waco 


2,030 


26 


99 


78 


31°40' 




Wichita Falls 


2,832 


18 


101 


76 


34°00' 


UT 


Salt Lake City 


6,052 


8 


95 


65 


40°50' 


VT 


Burlington 


8,269 


-7 


85 


72 


44°30' 


VA 


Lynchburg 


4,166 


16 


90 


76 


37°20' 




Norfolk 


3,421 


22 


91 


78 


36°50' 




Richmond 


3,865 


17 


92 


78 


37°30' 




Roanoke 


4,150 


16 


91 


74 


37°20' 


WA 


Olympia 


5,236 


22 


83 


66 


47°00' 




Seattle-Tacoma 


5,145 


26 


80 


64 


47°30' 




Seattle** 


4,424 


27 


82 


67 


47°40' 




Spokane 


6,655 


2 


90 


64 


47°40' 


WV 


Charleston 


4,476 


11 


90 


75 


38°20' 




Elkins 


5,675 


6 


84 72 


38°50' 




Huntington 


4,446 


10 


91 77 


38°20' 




Parkersburg 


4,754 


11 


90 76 


39°20' 



(Continued) 



OEGKEE DM ^WD DESIQM TE^FiRATy^iS'^ F@R (SSTil 



m STATi 



STATION' 






©iSi@Kl Tl^PEmmPii 



177,% 



1V,% WgK 6w8fe) gV=% 



WI 



Green Bay 
La Crosse 
Madison 
Milwaukee 



8,029 
7,589 
7,863 
7,635 



-7 



75 



44''30' 
43^50' 
43°10' 
43°00' 



WY 



Casper 
Cheyenne 
Lander 
Sheridan 



7,410 
7,381 
7,870 
7,680 



-1 
■11 



61 
62 
63 



91 



42°50' 
41°10' 
42''50' 
44050' 



a. All data was extracted from the 1985 ASHRAE Handbook, Fundamentals Volume. 

b. Design data developed from airport temperature observations unless noted. 

c. Latitude is given to the nearest 10 minutes. For example, the latitude for Miami, Florida, is given as 25"'50 ' which is 25 degrees 50 minutes. 

d. Design data developed from office locations within an urban area, not from airport temperature observations. 



no 2©03 IWTERfiATJONAL PLUMBIMG CODE® 



OF WMEB PDPl 



)YST[ 



EKQILI §c®p©. 






1,1.1 This appendix outlines two procedures for sizing a 
water piping system (see Sections E103.3 andE201.1). The 
design procedures are based on the minimum static pressure 
available from the supply source, the head charges in the 
system caused by friction and elevation, and the rates of 
flow necessary for operation of various fixtures. 



olo2 Because of the variable conditions encountered in 
hydraulic design, it is impractical to specify definite and de- 
tailed rules for sizing of the water piping system. Accord- 
ingly, other sizing or design methods conforming to good 
engineering practice standards are acceptable alternatives to 
those presented herein. 



SE0TI©Mi1®2 
BMFORliiMO©^ Ri^yORED 

El (lIl2ol IPreMmBimaryo Obtain the necessary information regard- 
ing the minimum daily static service pressure in the area where 
the building is to be located. If the building supply is to be me- 
tered, 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. 



gmam 

system by total- 
e 



])2o2ol Estimate the supply demiand 
and the principal branches and risers 
ing the corresponding demand from the 
Table El 03. 3(3). 

El©2o2o2 Estimate continuous supply dem&nds in gallons 
per minute (L/m) 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. 



SELEOTDOIMI OF FPE SDIE 

EllUS,! GeinieiraL Decide from Table 604.3 what is the desir- 
able minimum residual pressure that should be maintained at 
the highest fixture in the supply system. If the highest group of 
fixtures contains flush valves, die pressure for the group should 
not be less than 15 pounds per square inch ( psi) (103.4 kPa) 
flowing. For flush tank supplies, the available pressure should 
not be less than 8 psi (55.2 kPa) flowing, except blowout action 
fixtures must not be less than 25 psi (172.4 kPa) flovmg. 

E103,2 



El 03.2,1 Pipe sizes can be selected according to the follow- 
ing procedure or by other design methods conforming to ac- 
ceptable engineering practice and approved by the 



administrative authority. The sizes selected must not be less 
than the minimum required by Ais code. 

El([!)3o2,2 Water pipe sizing procedures are based on a sys- 
tem of pressure requirements and losses, the sum of which 
must not exceed the minimum pressure available at the sup- 
ply source. These pressures are as follows: 

1 . Pressure required at fixture to produce required flow. See 
Section 604.3 and Section 604.5. 

2. Static pressure loss or gain (due to head) is computed at 
0.433 psi per foot (9.8 kPa/m) of elevation change. 

Esamjpk s Assume that the highest fixture supply out- 
let is 20 feet (6096 mm) above or below the supply 
source. This produces a static pressure differential of 
20 feet by 0.433 psi/foot (2096 mm by 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. 

5. Losses through special devices such as filters, softeners, 
backflow prevention devices and pressure regulators. 
These values must be obtained from the manufacturers. 

6. Loss through valves and fittings. Losses for these items 
are calculated by converting to < 

ing and adding to the total pi 

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. For piping flow charts not included, use 
manufacturers' tables and velocity recommendations. 

Note; For the purposes of all examples, the following 

metric conversions are applicable: 

1 cubic foot per minute = 0.4719 L/s 

1 square foot = 0.0929 m^ 

1 degree = 0.0175 rad 

1 pound per square inch = 6.895 kPa 

1 inch = 25.4 mm 

1 foot = 304.8 mm 

1 gallon per minute = 3.785 L/m 

ElOSoS §©giiini®iiitedl I([dss msltlh®dl. The size of water service 
mains, branch mains and risers by the segmented loss method, 
must be determined according to water supply demand [gpm 
(L/m)], available water pressure [psi (kPa)] and friction loss 
caused by the water meter and developed length of pipe [feet 
(m)], including equivalent length of fittings. This design proce- 
dure is based on the following parameters: 

o Calculates the friction loss through each length of the pipe. 



2003 IMTERMATSOEVl^L PLUMBSMG CODE® 



1-81 



SIZING OF WATER PIPING SYSTEf 



® Based on a system of pressure losses, the sum of which must 
not exceed the minimum pressure available at the street main 
or other source of supply. 

« Pipe sizing based on estimated peak demand, total pressure 
losses caused by difference in elevation, equipment, devel- 
oped length and pressure required at most remote fixture, 
loss through taps in water main, losses through fittings, fil- 
ters, backflo w prevention devices, valves and pipe friction. 

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. Current sizing methods do 
not address the differences in the probability of use and flow 
characteristics of fixtures between types of occupancies. Cre- 
ating an exact model of predicting the demand for a building is 
impossible and final studies assessing the impact of water con- 
servation on demand are not yet complete. The following steps 
are necessary for the segmented loss method. 

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 
to be used. Friction loss data can be obtained from manu- 
facturers of water meters. It is essential that enough pres- 
sure be available to overcome all system losses caused by 
friction and elevation so that plumbing fixtures operate 
properly. Section 604.6 requires the water distribution 
system to be designed for the minimum pressure available 
taking into consideration pressure fluctuations. The low- 
est pressure must be selected to guarantee a continuous, 
adequate supply of water. The lowest pressure in the pub- 
lic main usually occurs in the summer because of lawn 
sprinkling and supplying water for air-conditioning cool- 
ing towers. Future demands placed on the public main as a 
result of large growth or expansion should also be consid- 
ered. The available pressure will decrease as additional 
loads are placed on the public system. 

2. Demand load. Estimate the supply demand of the build- 
ing main and the principal branches and risers of the sys- 
tem by totaling the corresponding demand from the 
applicable part of Table El 03.3(3). When estimating peak 
demand sizing methods typically use water supply fixture 
units (w.s.f u.)(see Table E103.3(2)). This numerical fac- 
tor measures the load-producing effect of a single plumb- 
ing fixture of a given kind. The use of such fixture units 
can be applied to a single basic probability curve (or ta- 
ble), found in the various sizing methods (Table 
El 03. 3(3)). The fixture units are then converted into gal- 
lons per minute (L/m) flow rate for estimating demand. 

2.1. Estimate continuous supply demand in gallons per 
minute (L/m) 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. Fixture units cannot be applied to 
constant use fixtures such as hose bibbs, lawn sprin- 
klers and air conditioners. These types of fixtures 
must be assigned the gallon per minute (L/m) value. 



3. Selection of pipe size. 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 fol- 
lows: 

3.1 . Pressure required at the fixture to produce required 
flow. See Section 604.3 and Section 604.5. 

3.2. Static pressure loss or gain (because of head) is com- 
puted at 0.433 psi per foot (9.8 kPa/m) of elevation 
change. 

3.3. Loss through a water meter. The friction or pressure 
loss can be obtained firom the manufacturer. 

3.4. Loss through taps in water main [see Table E103.3(4)]. 

3.5. Losses through special devices such as filters, soften- 
ers, backflow prevention devices and pressure regu- 
lators. These values must be obtained from the 
manufacturers. 

3. 6. Loss through valves and fittings [see Tables 
E103.3(5) and E103.3(6)]. Losses for these items are 
calculated by converting to equivalent length of pip- 
ing and adding to the total pipe length. 

3.7. Loss caused by 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 El 03. 3(2) 
through El 03. 3(7). When using charts, use pipe in- 
side diameters. For piping flow charts not included, 
use manufacturers' tables and velocity recommen- 
dations. Before attempting to size any water supply 
system, it is necessary to gather preliminary infor- 
mation which includes available pressure, piping 
material, select design velocity, elevation differ- 
ences and developed length to most remote fixture. 
The water supply system is divided into sections at 
major changes in elevation or where branches lead to 
fixture groups. The peak demand must be deter- 
mined in each part of the hot and cold water supply 
system which includes the corresponding water sup- 
ply fixture unit and conversion to gallons per minute 
(L/m) flow rate to be expected through each section. 
Sizing methods require the determination of the 
"most hydraulically remote" fixture to compute the 
pressure loss caused by pipe and fittings. The hy- 
draulically remote fixture represents the most down- 
stream fixture along the circuit of piping requiring 
the most available pressure to operate properly. Con- 
sideration must be given to all pressure demands and 
losses, such as friction caused by pipe, fittings and 
equipment, elevation and the residual pressure re- 
quired by Table 604.3. The two most common and 
frequent complaints about the water supply system 
operation are lack of adequate pressure and noise. 

Problem: What size Type L copper water pipe, service and 
distribution will be required t o 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 



2003 SNTERMATIOSMAL PLUMBING CODE® 



SIZING OF WATER PIPIiSJG SYSTEP 



fixture is 21 feet (6401 mm) above the street main, which is 
tapped with a 2-inch (51 mm) corporation cock at which 
point the minimum pressure is 55 psi (379.2 kPa). In the 
building basement, a 2-inch (5 1 mm) meter with a maxi- 
mum pressure drop of 1 1 psi (75. 8 kPa) and 3-inch (76 mm) 
reduced pressure principle backflow preventer with a maxi- 
mum pressure drop of 9 psi (62 1 kPa) are to be installed. The 
system is shown by Figure El 03. 3(1). To be determined are 
the pipe sizes for the service main and the cold and hot water 
distribution pipes. 



A tabular arrangement such as shown in Table 
El 03.3(1) should first be constructed. The steps to be fol- 
lowed are indicated by the tabular arrangement itself as they 
are in sequence, columns 1 through 10 and lines A through 
L. 

Sitep II 

Cffltamms 1 amd 2: Divide the system into sections breaking 
at major changes in elevation or where branches lead to fix- 
ture groups. After point B [see Figure E103.3(l)], 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. Col- 
umn 1 of Table E 103.3(1) provides a line-by-line recom- 
mended tabular arrangement for use in solving pipe sizing. 

The objective in designing the water supply system is to 
ensure an adequate water supply and pressure to all fixtures 
and equipment. Column 2 provides the pounds per square 
inch (psi) to be considered separately from the minimum 
pressure available at the main. Losses to take into consider- 
ation are the following: the differences in elevations be- 
tween the water supply source and the highest water supply 
outlet, meter pressure losses, the tap in main loss, special 
fixture devices such as water softeners and prevention de- 
vices and the pressure required at the most remote fixture 
outlet. The difference in elevation can result in an increase 
or decrease in available pressure at the main. Where the wa- 
ter supply outlet is located above the source, this results in a 
loss in the available pressure and is subtracted from the pres- 
sure at the water source. Where the highest water supply 
outlet is located below the water supply source, there will be 
an increase in pressure that is added to the available pressure 
of the water source. 



mi 3; According to Table E103.3(3), determine the 
gpm (L/m) of flow to be expected in each section of the sys- 
tem. These flows range from 28.6 to 108 gpm. Load values 
for fixtures must be determined as water supply fixture units 
and then converted to a gallon-per-minute (gpm) rating to 
determine peak demand. When calculating peak demands, 
the water supply fixture units are added and then converted 
to the gallon-per-minute rating. For continuous flow fix- 
tures such as hose bibbs and lawn sprinkler systems, add the 
gallon-per-minute demand to the intermittent demand of 
fixtures. For example, a total of 120 water supply fixture 
units is converted to a demand of 48 gallons per minute. Two 
hose bibbs x 5 gpm demand =10 gpm. Total gpm rating = 
48.0 gpm + 10 gpm = 58.0 gpm demand. 



A: Enter the minimum pressure available at the main 
source of supply in Column 2. This is 55 psi (379.2 kPa). 
The local water authorities generally keep records of pres- n 
sures at different times of day and year. The available pres- U 
sure can also be checked from nearby buildings or from fire 
department hydrant checks. 



5: Determine from Section 604.3 the highest pressure 
required for the fixtures on the system, which is 1 5 p si 
(103.4 kPa), to operate a flushometer valve. The most re- 
mote fixture outlet is necessary to compute the pressure loss 
caused by pipe and fittings, and represents the most down- 
stream fixture along the circuit of piping requiring the avail- 
able pressure to operate properly as indicated by Table 
604.3. 

Lime 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. There are three common types of water meters; the 
pressure losses are determined by the American Water 
Works Association Standards for displacement type, com- 
pound type and turbine type. The maximum pressure loss of 
such devices takes into consideration the meter size, safe 
operating capacity (gpm) and maximum rates for continu- 
ous operations (gpm). Typically, equipment imparts greater 
pressure losses than piping. 



); Select from Table E 103.3(4) and enter the pressure 
loss for the tap size given or assumed. The loss of pressure 
through taps and tees in pounds per square inch (psi) are 
based on the total gallon-per-minute flow rate and size of the 
tap. 



E.° Determine the difference in elevation between the 
main and source of supply and the highest fixture on the sys- 
tem. Multiply this figure, expressed in feet, by 0.43 psi (2.9 
kPa). Enter the resulting psi loss on Line E. The difference 
in elevation between the water supply source and the high- 
est water supply outlet has a significant impact on the sizing 
of the water supply system. The difference in elevation usu- 
ally results in a loss in the available pressure because the wa- 
ter supply outlet is generally located above the water supply 
source. The loss is caused by the pressure required to lift the 
water to the outlet. The pressure loss is subtracted from the 
pressure at the water source. Where the highest water supply 
outlet is located below the water source, there will be an in- 
crease in pressure which is added to the available pressure 
of the water source. 

Limes F,G amdlMi The pressure losses through filters, 
backflow prevention devices or other special fixtures must be 
obtained from the manufacturer or estimated and entered on 
these lines. Equipment such as backflow prevention devices, 
check valves, water softeners, instantaneous or tankless wa- 
ter heaters, filters and strainers can impart a much greater 
pressure loss than the piping. The pressure losses can range 
from 8 psi to 30 psi. 



! I: The sum of the pressure requirements and losses that 
affect the overall system (Lines B through H) is entered on 



2003 IMTERNMIOWAL PLUMBING CODE® 



113 



SIZING OF WATER PIP8NG SYSTEf 



this line. Summarizing the steps, all of the system losses are 
subtracted from the minimum water pressure. The remain- 
der is the pressure available for friction, defined as the en- 
ergy available to push the water through the pipes to each 
fixture. This force can be used as an average pressure loss, 
as long as the pressure available for friction is not exceeded. 
Saving a certain amount for available water supply pres- 
sures as an area incurs growth, or because of aging of the 
pipe or equipment added to the system is recommended. 



Line J: Subtract Line i from Line A. This gives the pressure 
that remains available from overcoming friction losses in 
the system. This figure is a guide to the pipe size that is cho- 
sen for each section, incorporating the total friction losses 
to the most remote outlet (measured length is called devel- 
oped length). 



Ho* 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. 

The maximum friction head loss that can be tolerated in 
the system during peak demand is the difference between 
the static pressure at the highest and most remote outlet at 
no-flow conditions and the minimum flow pressure re- 
quired at that outlet. If the losses are within the required lim- 
its, then every run of pipe will also be within the required 
friction head loss. Static pressure loss is the most remote 
outlet in feet x 0.433 = loss in psi caused by elevation differ- 
ences. 



Column 4: Enter the length of each section from the main to 
the most remote outlet (at Point E). Divide the water supply 
system into sections breaking at major changes in elevation 
or where branches lead to fixture groups. 

ep 6 

Colismo 5: When selecting a trial pipe size, the length from 
the water service or meter to the most remote fixture outlet 
must be measured to determine the developed length. How- 
ever, in systems having a flush valve or temperature con- 
trolled shower at the top most floors the developed length 
would be from the water meter to the most remote flush 
valve on the system. 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: 

Lme J (Pressure available to overcome pipe friction) x 
100/equivalent length of mn total developed length to most 



remote fixture x percentage factor of 1 .5 (note: a percentage 
factor is used only as an estimate for friction losses imposed 
for fittings for initial trial pipe size) = psi (average pressure 
drops per 100 feet of pipe). 

For trial pipe size see Figure E 103.3(3) (Type L copper) 
based on 2.77 psi and a 1 08 gpm = 2 '/2 inches. To determine 
the equivalent length of run to the most remote outlet, the 
developed length is determined and added to the friction 
losses for fittings and valves. The developed lengths of the 
designated pipe sections are as follows: 



A-B 



B-C 



C-D 



D-E 



54 ft 



8ft 



13 ft 



150ft 



Total developed length = 225 ft 

The equivalent length of the friction loss in fittings and 
valves must be added to the developed length (most remote 
outlet). Where the size of fittings and valves is not known, 
the added fiiction loss should be approximated. A general 
rule that has been used is to add 50 percent of the developed 
length to allow for fittings and valves. For example, the 
equivalent length of run equals the developed length of run 
(225 ft xl.5 = 338 ft). The total equivalent length of run for 
determining a trial pipe size is 338 feet. 

Esample: 9.36 (pressure available to overcome pipe fric- 
tion) xlOO/ 338 (Equivalent length of run = 225 x 1.5) = 
2.77 psi (average pressure drop per 100 feet of pipe). 



n <Si Select from Table El 03. 3(6) the equivalent 
lengths for the trial pipe size of fittings and valves on each 
pipe section. Enter the sum for each section in Column 6. 
(The number of fittings to be used in this example must be an 
estimate.) The equivalent length of piping is the developed 
length plus the equivalent lengths of pipe corresponding to 
friction head losses for fittings and valves. Where the size of 
fittings and valves is not known, the added friction head 
losses must be approximated. An estimate for tliis example 
is as follows: 



mmG OF WATER PIPING SYSTEB 



COLD WATER 
PIPE SECTION 


FITTSWGSA/ALVES 


PRESSURE 

LOSS 
EXPRESSED 

EQUIVALENT 

LENGTH 

OF TUBE 

(FEET) 


HOT WATER 
PIPE SECTfON 


FITTINGSA^ALVES 


PRESSURE 

LOSS 
EXPRESSED 

EQUIVALENT 

OF TUBE 

(FEET) 


A-B 


3-2V," Gate valves 


3 


A-B 


3-2V2" Gate valves 


3 


1-2'//' Side branch tee 


12 




I-2V2" Side branch tee 


12 


B-C 


l-l'/i' Straight run tee 


0.5 


B-C 


1-2" Straight run tee 


7 








1-2" 90-degree ell 


0.5 


C-F 


1-2 'A" Side branch tee 


12 


C-F 


l-l'A" Side branch tee 


7 


C-D 


l-2V,"90-degreeell 


7 


C-D 


l-'A" 90-degree ell 


4 


D-E 


l-2'/2" Side branch tee 


12 


D-E 


l-l'A" Side branch tee 


7 



n 7: Add the figures from Column 4 and Column 6, 
and enter in Column 7. Express the sum in hundreds of feet. 



Step 11 

Lime Ki Enter the sum of the values in Column 9. The value 
is the total friction loss in equivalent length for each desig- 
nated pipe section. 



181 Select from Figure El 03.3(3) the friction loss per 
100 feet (30 480 mm) of pipe for the gallon-per-minute flow 
in a section (Column 3) and trial pipe size (Column 5). 
Maximum friction head loss per 1 00 feet is determined on the 
basis of total pressure available for friction head loss and the 
longest equivalent length of run. The selection is based on the 
gallon-per-minute demand, the uniform friction head loss, 
and the maximum design velocity. Where the size indicated 
by hydraulic table indicates a velocity in excess of the 
selected velocity, a size must be selected which produces the 
required velocity. 



!>: Multiply the figures in Columns 7 and 8 for 
each section and enter in Column 9. 

Total friction loss is determined by multiplying the 
friction loss per 1 00 feet (30 480 mm) for each pipe section 
in the total developed length by the pressure loss in fittings 
expressed as equivalent length in feet. Note: Section C-F 
should be considered in the total pipe friction losses only if 
greater loss occurs in Section C-F than in pipe section D-E. 
Section C-F is not considered in the total developed length. 
Total friction loss in equivalent length is determined as 
follows: 



Lime L; Subtract Line J from Line K and enter in Column 
10. 

The result should always be a positive or plus figure. If it 
is not, repeat the operation using Columns 5, 6, 8 and 9 until 
a balance or near balance is obtained. If the difference be- 
tween Lines J and K is a high positive number, it is an indi- 
cation that the pipe sizes are too large and should be 
reduced, thus saving materials. In such a case, the opera- 
tions using Columns 5, 6, 8 and 9 should again be repeated. 

The total friction losses are determined and subtracted 
from the pressure available to overcome pipe friction for 
trial pipe size. This number is critical as it provides a guide 
to whether the pipe size selected is too large and the process 
should be repeated to obtain an economically designed sys- 
tem. 

Answer: The final figures entered in Column 5 become the 
design pipe size for 3ie respective sections. Repeating this 
operation a second time using the same sketch but consider- 
ing the demand for hot water, it is possible to size the hot wa- 
ter distribution piping. This has been worked up as a part of 
the overall problem in the tabular arrangement used for sizing 
the service and water distribution piping. Note that consider- 
ation must be given to the pressure losses from the street main 
to the water heater (Section A-B) in determining the hot water 
pipe sizes. 



PIPE SECTIONS 


FRICTION LOSS EQUIVALENT LENGTH (fe©1i) 


Gold Water 


Ho« W@U©r 


A-B 


0.69x3.2=2.21 


0.69x3.2 = 2.21 


B-C 


0.085x3.1=0.26 


0.16 X 1.4 = 0.22 


C-D 


0.20x1.9 = 0.38 


0.17x3.2 = 0.54 


D-E 


1.62x1.9 = 3.08 


1.57x3.2 = 5.02 


Total pipe friction losses 
tLine K) 


5.93 


7.99 



2003 WTERWATJOWAL PLUMBJiVlG CODE® 



115 



S!Z1^SG OF WATER PIPING SYSTEBW 



A 

O— 
iVlAIN 



HOTVWTER 

COLD VWTER 

M = METER 

BFP= BACKFLOWPREVENTER 



r" 



= 90 DEGREE ELBOW 
M = VALVE 



FLOOR 2 




288fu, 108 gpm 



A 



I 



132fu, 
77 gpm 



FLOOR 1 



D 



C - 



2S4fu, te= 

104.5 gpm 

-MO—MOM-^ 



54 FT 



M BFP 



150 FT 



13^u, 77 gpm 



JT" ? 

[z 

00 



D' 



r 



CO 



b-i 



4-H 



- B' 



\: 



12fu. 28.6 gpm 



132fu, 77 gpm 



\r 



12ru, 28.6 gpm 
24fu, 3S gpm 



VWER HEATER 



^^ 



E' 






For SI: 1 foot = 304.8 mm, 1 gpm = 3.785 L/m. 



FIGURE E1 03.3(1) 
EXAMPLE-SIZil^G 



11S 



2003 INTERNATIONAL PLUMBING CODE® 



miMG OF WATER PlPmG SYSTEP 



meLE E103.3( 



BLEf 



COLUMN 



Total 



LJns 



Description 



per 

equ&rs 

inch 

(psi) 



Qal. psr 

min 
through 
section 



length 
of 



Length 
of 

section 



Trial 

pip® 

sise 

(inches) 



and 



length 
col. 4 
and 
coi. S 
(100 
veet) 



Friction 

loss per 

lOOfoet 

oiTtB-iall 

size 

pipe 

(pal)) 



Friction 
loss in 



length 

col. 8 K 

col. 7 

(psi) 



over 
friction 



(psi) 



Service 

And 

Cold 

Water 

Distribution 

Piping" 



Minimum pressure available at main 

Highest pressure required at a fixture 

(Section 604.3) 

Meter loss 2" meter 

Tap in main loss 2" tap (Table E103A).. 

Static head loss 21 x 43 psi 

Special fixture loss bacWlow preventer.. 

Special fixture loss — Filter 

Special fixture loss — Other. 

Total overall losses and requirements 

(Sum of Lines B through H. 

Pressure available to overcome pipe 

Friction (Line A minus Lines B to H).. 



.55.00 

.15.00 

.11.00 

...1.61 

...9.03 

...9.00 

....0.00 

...0.00 



.45.64 



.9.36 



DESIGNATION 
Pipe section (from Diagram) 
Cold water 
Distribution 
Piping 



AB. 
EC. 
CD.. 

CF^. 
de''. 



FU 
.288 
.,264 
..132 
..132 
...132 



108.0 
104.5 
77.0 
77.0 
77.0 



54 
8 
13 
150 
150 



2/. 

2/2 
2/2 

2'/, 
2'/ 



15.00 
0.5 
7.00 
12.00 
12.00 



0.69 
0.85 
0.20 
1.62 
1.62 



3.2 
3.1 
1.9 
1.9 
1.9 



2.21 
0.26 
0.38 
3.08 
3.08 



Total pipe friction losses (cold) 
Difference (Line J minus Line K) 



5,93 



3.43 



Pipe section (from diagram) A 'B' 
Diagram B'C 

Hot Water CD 

Distribution C'F 
Piping DT" 



,b" 



,288 
...24 
...12 
...12 
...12 



108.0 
38.0 
28.6 
28.6 
28.6 



54 
8 
13 
150 
150 



2V, 



12.00 
7.5 
4.0 
7.00 
7,00 



0,69 
0.16 
0.17 
1.57 
1,57 



3.3 
1,4 
3.2 
3.2 
3,2 



2.21 
0.22 
0.54 
5.02 
5.02 



Total pipe friction losses (hot) 
Difference (line) Minus Lme K 



7.99 



1.37 



For SI:1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 psi = 6.895 kPa, 1 gpm = 3.785 L/m. 

a. To be considered as pressure gain for fixtures below main (to consider separately, omit from "I" and add to "J"). 

b. To consider separately, in K use C-F only if greater loss than above. 



2003 SWTERWATIOMAL PLOMSSJ^G CODE® 



117 



SSZliMG OF WATER PIPBNG SYSTEP 



TABLE E1 03.3(2) 
LOAD VALUES ASS8GNED TO FIXTURES^ 



FIXTURE 


OCCUPANCY 


TYPE OF SUPPLY 
CONTROL 


LOAD VALUES, 


N WATER SUPPLY FIXTURE UNITS (wsfu) 


Cold 


Hot 


Total 


Bathroom group 


Private 


Flush tank 


2.7 


1.5 


3.6 


Bathroom group 


Private 


Flush valve 


6.0 


3.0 


8.0 


Bathtub 


Private 


Faucet 


1.0 


1.0 


1.4 


Bathtub 


PubUc 


Faucet 


3.0 


3.0 


4.0 


Bidet 


Private 


Faucet 


1.5 


1.5 


2.0 


Combination fixture 


Private 


Faucet 


2.25 


2.25 


3.0 


Dishwashing machine 


Private 


Automatic 


— 


1.4 


1.4 


Drinking fountain 


Offices, etc. 


■^/g" valve 


0.25 


— 


0.25 


Kitchen sink 


Private 


Faucet 


1.0 


1.0 


1.4 


Kitchen sink 


Hotel, restaurant 


Faucet 


3.0 


3.0 


4.0 


Laundry trays (1 to 3) 


Private 


Faucet 


1.0 


1.0 


1.4 


Lavatory 


Private 


Faucet 


0.5 


0.5 


0.7 


Lavatory 


Public 


Faucet 


1.5 


1.5 


2.0 


Service sink 


Offices, etc. 


Faucet 


2.25 


2.25 


3.0 


Shower head 


Public 


Mixing valve 


3.0 


3.0 


4.0 


Shower head 


Private 


Mixing valve 


1.0 


1.0 


1.4 


Urinal 


Public 


1" flush valve 


10.0 


— 


10.0 


Urinal 


Public 


^1^' flush valve 


5.0 


— 


5.0 


Urinal 


Public 


Flush tank 


3.0 


— 


3.0 


Washing machine (8 lb) 


Private 


Automatic 


1.0 


1.0 


1.4 


Washing machine (8 lb) 


Public 


Automatic 


2.25 


2.25 


3.0 


Washing machine (15 lb) 


Public 


Automatic 


3.0 


3.0 


4.0 


Water closet 


Private 


Flush valve 


6.0 


— 


6.0 


Water closet 


Private 


Flush tank 


2.2 


— 


2.2 


Water closet 


Public 


Flush valve 


10.0 


— 


10.0 


Water closet 


Public 


Flush tank 


5.0 


— 


5.0 


Water closet 


Public or private 


Flushometer tank 


2.0 


— 


2.0 



For SI: ] inch = 25.4 mm, 1 pound = 0.454 kg. 

a. 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. 



118 



2003 SNTERNATIONAL PLUMBING CODE® 



G SYSTEP 



BLE El 03.3(3) 
ESTIMMIWG DEMAMD 



SUPPLY SYSTEMS PREDOIMIWANTLY FOR FLUSH TANKS 


SUPPLY SYSTEMS PREDOMINANTLY FOR FLUSH VALVES 


Load 


Demand 


Load 


Demand 


(Wateir supply 
Fixture ynits > 


(Gallons per mmut©) 


(Cubic fe@t! p@T minute) 


(Water supply 
fixture units) 


(Gallons per minute) 


(Cubic }eet per minute) 


1 


3.0 


0.04104 


— 


— 


— 


2 


5.0 


0.0684 


— 


— 


— 


3 


6.5 


0.86892 


— 


— 


— 


4 


8.0 


1.06944 


— 


— 


— 


5 


9.4 


1.256592 


5 


15.0 


2.0052 


6 


10.7 


1.430376 


6 


17.4 


2.326032 


7 


11.8 


1.577424 


7 


19.8 


2.646364 


8 


12.8 


1.711104 


8 


22.2 


2.967696 


9 


13.7 


1.831416 


9 


24.6 


3.288528 


10 


14.6 


1.951728 


10 


27.0 


3.60936 


11 


15.4 


2.058672 


11 


27.8 


3.716304 


12 


16.0 


2.13888 


12 


28.6 


3.823248 


13 


16.5 


2.20572 


13 


29.4 


3.930192 


14 


17.0 


2.27256 


14 


30.2 


4.037136 


15 


17.5 


2.3394 


15 


31.0 


4.14408 


16 


18.0 


2.90624 


16 


31.8 


4.241024 


17 


18.4 


2.459712 


17 


32.6 


4.357968 


18 


18.8 


2.513184 


18 


33.4 


4.464912 


19 


19.2 


2.566656 


19 


34.2 


4.571856 


20 


19.6 


2.620128 


20 


35.0 


4.6788 


25 


21.5 


2.87412 


25 


38.0 


5.07984 


30 


23.3 


3.114744 


30 


42,0 


5.61356 


35 


24.9 


3.328632 


35 


44.0 


5.88192 


40 


26.3 


3.515784 


40 


46.0 


6.14928 


45 


27.7 


3.702936 


45 


48.0 


6,41664 


50 


29.1 


3.890088 


50 


50.0 


6.684 


60 


32.0 


4.27776 


60 


54.0 


7.21872 


70 


35.0 


4.6788 


70 


58.0 


7.75344 


80 


38.0 


5,07984 


80 


61.2 


8.181216 


90 


41.0 


5.48088 


90 


64.3 


8.595624 


100 


43.5 


5.81508 


100 


67.5 


9.0234 


120 


48.0 


6.41664 


120 


73.0 


9.75864 


140 


52.5 


7.0182 


140 


77.0 


10.29336 


160 


57.0 


7.61976 


160 


81.0 


10.82808 


180 


61.0 


8.15448 


180 


85.5 


11.42964 


200 


65.0 


8.6892 


200 


90.0 


12.0312 


225 


70.0 


9.3576 


225 


95.5 


12.76644 


250 


75.0 


10.026 


250 


101.0 


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 


1,000 


208.0 


27.80544 


1,000 


208.0 


27.80544 


1,250 


239.0 


31.94952 


1,250 


239.0 


31.94952 


1,500 


269.0 


35.95992 


1,500 


269.0 


35.95992 


1,750 


297.0 


39.70296 


1,750 


297.0 


39.70296 


2,000 


325.0 


43.446 


2,000 


325.0 


43.446 


2,500 


380.0 


50.7984 


2,500 


380.0 


50.7984 


3,000 


433.0 


57.88344 


3,000 


433.0 


57.88344 


4,000 


535.0 


70.182 


4,000 


525,0 


70.182 


5,000 


593.0 


79.27224 


5,000 


593.0 


79.27224 



2003 8MTERMATI10WAL PLUMBIMG CODE® 



119 



SIZ8NG OF WATER PIPING SYSTEi 



LOSS OF PRESSURE THROUGH TAPI 



3LE E1103.3(4) 
kKD TEES m POUMOS PEO SQUARE IWCH (psi) 



GALLONS PER MJNOTE 


SIZE OF TAP OR TEE (incBues) 


% 


% 


1 


Vh 


Vh 


2 


3 


10 


1.35 


0.64 


0.18 


0.08 


— 


— 


— 


20 


5.38 


2.54 


0.77 


0.31 


0.14 




— 


30 


12.10 


5.72 


1.62 


0.69 


0.33 


0.10 


— 


40 


— 


10.20 


3.07 


1.23 


0.58 


0.18 


— 


50 


— 


15.90 


4.49 


1.92 


0.91 


0.28 


— 


60 


— 


— 


6.46 


2.76 


1.31 


0.40 


— 


70 


— 


— 


8.79 


3.76 


1.78 


0.55 


0.10 


80 


— 


— 


11.50 


4.90 


2.32 


0.72 


0.13 


90 


— 


— 


14.50 


6.21 


2.94 


0.91 


0.16 


100 


— 


— 


17.94 


7.67 


3.63 


1.12 


0.21 


120 


— 


— 


25.80 


11.00 


5.23 


1.61 


0.30 


140 


— 


— 


35.20 


15.00 


7.12 


2.20 


0.41 


150 


— 


— 


— 


17.20 


8.16 


2.52 


0.47 


160 


— 


— 


— 


19.60 


9.30 


2.92 


0.54 


180 


— 


— 


— 


24.80 


11.80 


3.62 


0.68 


200 


— 


— 


— 


30.70 


14.50 


4.48 


0.84 


225 


— 


— 


— 


38.80 


18.40 


5.60 


1.06 


250 


— 


— 


— 


47.90 


22.70 


7.00 


1.31 


275 


— 


— 


— 


— 


27.40 


7.70 


1.59 


300 


— 


— 


— 


— 


32.60 


10.10 


1.88 



For SI: 1 inch = 25.4 mm, 1 pound per square inch - 6.895 kpa, 1 gallon per minute = 3.785 L/m. 



TABLE E1 03.3(5) 
EQUSVALENT LENGTHS OF PIPE FOR FRICTSOM LOSS IM VALVES AMD THREADED FITTINGS (feet) 



FITTING OR VALVE 


PIPE SIZE (inches) 


% 


% 


■i 


17. 


1V. 


2 


27, 


3 


45-degree elbow 


1.2 


1.5 


1.8 


2.4 


3.0 


4.0 


5.0 


6.0 


90-degree 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 


2.2 


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 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 degree = 0.0175 rad. 



2003 SNTERNATSONAL FLUSViBING CODE® 



■R PBPING SYSTEF 



mSLE El 03.3(8) 
PRESSURE LOSS M FlTTIi^^QS AMD VALVES EXPRESSED AS EQUIVALENT LENGTH OF TUBE® (feet) 



NOMINAL 

OR 
STANDARD 

(Isreflis) 


FITTSNGS 


Coypling 


VALVES 


Standard EBB 


@0-D©gr@@ Te® 


Ball 


Oate 


BySt©rfiy 


Cheek 


90 D©gre© 


4S Degre© 


Ssde Sraneh 


Straight Run 


V, 


0.5 


— 


1.5 


— 


— 


— 


— 


— 


1.5 


'A 


1 


0.5 


2 


— 


— 


— 


— 


— 


2 


V, 


1.5 


0.5 


2 


— 


— 


— 


— 


— 


2.5 


V, 


2 


0.5 


3 


— 


— 


— 


— 


— 


3 


1 


2.5 


1 


4.5 


— 


— 


0.5 


— 


— 


4.5 


vu 


3 


1 


5.5 


0.5 


0.5 


0.5 


— 


— 


5.5 


IV, 


4 


1.5 


7 


0.5 


0.5 


0.5 


— 


— 


6.5 


2 


5.5 


2 


9 


0.5 


0.5 


0.5 


0.5 


7.5 


9 


2'/, 


7 


2.5 


12 


0.5 


0.5 


— 


1 


10 


11.5 


3 


9 


3.5 


15 


1 


1 


— 


1.5 


15.5 


14.5 


3V, 


9 


3.5 


14 


1 


1 


— 


2 


— 


12.5 


4 


12.5 


5 


21 


1 


1 


— 


2 


16 


18.5 


5 


16 


6 


27 


1.5 


1.5 


— 


3 


11.5 


23.5 


6 


19 


7 


34 


2 


2 


— 


3.5 


13.5 


26.5 


8 


29 


11 


50 


3 


3 


— 


5 


12.5 


39 



For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 degree = 0.01745 rad. 

a. Allowances are for streamlined soldered fittings and recessed threaded fittings. For threaded fittings, double the allowances shown in the table. The equivalent 
lengths presented above are based on a C factor of 1 50 in the Hazen- Williams friction loss formula. The lengths shown are rounded to the nearest half-fooL 



2003 1MTERNAT80WAL PLUMBIMG CODE® 



1121 



SIZING OF WATER PIPING SYSTEM 



EE5E85B5 

_|_4-1-I41-{W 

ni\n 



5EE5^EEEE 

\r\r~ 

TFITIT" 

'ir~ 
Titit- 



= 5 

-4 

--t 

~1 

1 



EEEBE'^ 

rtrnrH 
rTTnn^ 
FTrnri^ 



9000 



5000 
4000 



--t-ttrtitH ^ 

' 

7-rTTnTi^ ^ 

I III 
., ,,,1111 

=F^4f f 5TRflJ 
-4 4 4-1-] 4-1^ 

rtrnrH 

ITTHTI^ 

Tnri^ 

.11 
nri^ 200 



1000 



400 
300 




1 L 

1- eg m •* ifl 

d d odd 



o Q o 

(0 ^ IT) 



PRESSURE DROP PER 100 FEETOF TUBE. POUNDS PER SQUARE INCH 
Note: Ruid velocities in excess of 5 to 8 feet/second are not usually recx»nmsided. 

FIGURE E103.3(2) 

FRICTION LOSS IN SMOOTH PIPE^ 

(TYPE K, ASTRA B 88 COPPER TUBING) 

ForSI: 1 inch- 25.4 mm, 1 foot=304. 8mm, 1 gpm= 3.785 L/m, lpsi = 6.895kPa, 
1 foot per second = 0.305 m/s. 

a. This chart applies to smooth new copper tubing with recessed (Streamline) soldered joints and 
to the actual sizes of types indicated on the diagram. 



122 



2003 INTERNATIONAL PLUMEiiNG CODE® 



yZlMG OF WMER PIPING SYSTi 



-r~rtrnrH 

T-rTTnri^^° 

T-rTTnTi^'«^° 

rTTnrh^° 
i I I I II I 
I II I III' 

rttnrH 
TTnri^ 

n 71^200 
1 1 

ll 

100 




UJJJL'i 



PRESSURE DROP PER 1^ FEET OF TUBE. POUNDS PER SQUARE INCH 

: Ruid velodti^ in ©toess of 5 to 8 f^Vsscond are not uaially recanmaidsj. 

FIGURE E1©3.3(3) 

FRICTSON LOSS IN SiHOOTH P8PE^ 

(TYPE L, i^STM B 88 COPPER TUB8MG) 



For SI: 1 inch - 25.4mm, 1 foot= 304.8 mm, 1 gpm= 3.785 L/m, 1 psi = 6.895 kPa, 
1 foot per second = 0.305 m/s. 

a. This chart applies to smooth new copper tubing with recessed (Streamline) soldered 
joints and to the actual sizes of types indicated on the diagram. 



2003 IMTERNATIOMAL PLUMBBWG CODE® 



i23 



SIZING OF WATER PIPING SYSTEM 



r\r 

TFITIT 
IT 
Mi-It 



-r-r-r 
"r"TT 

"["TT 

-r-t-i- 




TRFP9000 

rnrii 

jppiiSOQO 
ypy|H4000 

f MtH^ooo 
II 

I 

1 1 

q:qq=iJioao 

THTll 
rnrH 
TriTi"* 

yp-[-|H400 

Hi-i-l300 

Mill 

nri"i2oo 



:|:|:J100 



J_IJ_ILIL'i 
§ §8 8 



PRESSURE DROP PER ^G0 FEET OF TUBE. POUNDS PER SQUARE INCH 
Note: Ruid v^odlies in exc^s of 5 to 8 f^t/!second are not usually reoommended. 

FIGURE E103.3(4) 

FRICTION LOSS IN SMOOTH PIPE^ 

(TYPE M, ASTM B 88 COPPER TUBING) 

ForSI: 1 inch -25.4 mm, 1 foot= 304.8 mm, 1 gpm = 3.785L'm,l psi = 6.895kPa, 
1 foot per second = 0.305 m/s. 

a. This chart apphes to smooth new copper tubing with recessed (Streamline) soldered 
joints and to the actual sizes of types indicated on the diagram. 



124 



2003 INTERNATIONAL PLUMBING CODE® 



G SYSTEP 



FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH 



N <4 <^ (A (o t^ «a eti- 



o o oo oooo o 



9000 
2000 



10CH} 
7(X) 



4©) 

2m 



2(» 



1(X) 
eo 

80 
70 
@0 

SO 

40 
20 
20 



10 





Pl j-l ^ _ 


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y^\^^^u\ ^ 


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y 1 1 i\mi \ 


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i\ii 



7000 

5000 
40C0 



2000 



1000 




800 




800 




700 




600 




500 




400 




300 


HI 




H 




Z3 


200 


2 




^ 




«. 




m 




Dl 




w 


100 


2 


80 


o 


eo 


-J 


70 
60 


g 


50 


z 


40 


§ 




— 1 


30 


u. 


20 





10 



CM CO It- lA <gf«®e»o 



FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH 



FBICTIOM LOSS m FABRLY SMOOTH PIPE® 

ForSI: 1 inch-25.4mm, 1 foot=304.8mm, 1 gpm = 3.78517m, 1 psi = 6.895 kPa, 
1 foot per second = 0.305 m/s. 

a. This chart applies to smooth new steel (fairly smooth) pipe and to actual diameters 
of standard-weight pipe. 



2003 SI^TERMATIONAL PLUMBING CODE® 



SIZING OF WATER PIPING SYSTEM 



FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH 



w rt * m (oi^eo'i- 




FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH 



FIGURE E103.3(6) 
FRICTION LOSS IN FAIRLY ROUGH PIPE" 

ForSI: 1 inch-25.4mm, 1 foot=304.8mm, I gpm = 3.785L/m, 1 psi = 6.895kPa, 
1 foot per second = 0.305 m/s. 

a. 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. 



126 



2003 INTERNATIONAL PLUMBING CODE® 



I1Z8NG OF WATER PIPIUQ SYSTEff 



FRICTION LOSS POUNDS PER SQUARE INCH HEAD PER 100 FEET LENGTH 



lOKJO 

7000 
@OCK} 

4000 
3000 

2000 



1000 

^^ 

700 

ax) 



n <«■ to (D r^ woo 



<VJ M <«■ lA (or^&c 



aw ^^^' -J 



300 



200 



^Q0 

70 

®) 

50 
40 
30 
20 





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- + 4 + k'-^l-^ :\->^ -^ V: i>^^i:i 




4H=:\4- 


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ROUGH 


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10(K)0 

6000 
KtOO 
4CC0 

3{X»] 

2000 



1000 

soo 

GtX) 
7(X) 
©30 

500 
400 
300 

200 



100 

SO 

70 
50 
40 
30 
20 



(o <3- m (oi^coa>o 



o 00 0000 



FRICTION LOSS POUNDS PER SOJARE INCH HEAD PER 100 FEET LENGTH 



FIGURE E103.3(7) 



For SI: 1 inch -25.4 mm, 1 foot = 304.8 mm, 1 gpm= 3.785 L/m, lpsi = 6.895 kPa, 
1 foot per second = 0.305 m/s. 

a. This chart applies to very rough pipe and existing pipe and to their actual diameters. 



1003 SMTERfyiATSOIMAL FLUMBSNQ CODE® 



t27 



SIZING OF WATER PIPING SYSTEM 



SECTION E201 
SELECTfOI^ OF PIPE SfZE 

E 2CIL1 Size off water-service mains, branch mains and ris- 
ers. The minimum size water service pipe shall be V4 inch 
(19.1 mm). The size of water service mains, branch mains and 
risers shall be determined according to water supply demand 
[gpm (L/m)], available water pressure [psi (kPa)] and friction 
loss due to the water meter and developed length of pipe [feet 
(m)], including equivalent length of fittings. The size of each 
water distribution system shall be determined according to the 
procedure outlined in this section or by other design methods 
conforming to acceptable engineering practice and approved 
by the code official: 

1 . Supply load in the building water-distribution system shall 
be determined by total load on the pipe being sized, in 
terms of water-supply fixture units (w.s.f u.), as shown in 
Table E 103.3(2). For fixtures not listed, choose a w.s.f.u. 
value of a fixture with similar flow characteristics. 

2. Obtain the minimum daily static service pressure [psi 
(kPa)] available (as determined by the local water author- 
ity) at the water meter or other source of supply at the in- 
stallation location. Adjust this minimum daily static 
pressure [psi (kPa)] for the following conditions: 

2.1. Determine the difference in elevation between the 
source of supply and the highest water supply outlet. 
Where the highest water supply outlet is located above 
the source of supply, deduct 0.5 psi (3.4 kPa) for each 
foot (0.3 m) of difference in elevation. Where the 
highest water supply outlet is located below the source 
of supply, add 0.5 psi (3.4 kPa) for each foot (0.3 m) of 
difference in elevation. 

2.2. Where a water pressure reducing valve is installed in 
the water distribution system, the minimum daily 
static water pressure available is 80 percent of the min- 
imum daily static water pressure at the source of sup- 
ply or the set pressure downstream of the pressure 
reducing valve, whichever is smaller. 

2.3. Deduct all pressure losses due to special equipment 
such as a backflow preventer, water filter and water 
softener. Pressure loss data for each piece of equip- 
ment shall be obtained through the manufacturer of 
such devices. 

2.4. Deduct the pressure in excess of 8 psi (55 kPa) due to 
installation of the special plumbing fixture, such as 
temperature controlled shower and flushometer tank 
water closet. 

Using the resulting minimum available pressure, find 
the corresponding pressure range in Table E201.1. 

3. The maximum developed length for water piping is the ac- 

tual length of pipe between the source of supply and the 
most remote fixture, including either hot (through the wa- 
ter heater) or cold water branches multiplied by a factor of 
1 .2 to compensate for pressure loss through fittings. 

Select the appropriate column in Table E20 1 . 1 equal to 
or greater than the calculated maximum developed length. 



4. To determine the size of water service pipe, meter and main 

distribution pipe to the building using the appropriate ta- 
ble, follow down the selected "maximum developed 
length" column to a fixture unit equal to, or greater than 
the total installation demand calculated by using the 
"combined" water supply fixture unit column of Table 
E20 1.1. Read the water service pipe and meter sizes in the 
first left-hand column and the main distribution pipe to the 
building in the second left-hand column on the same row. 

5. To determine the size of each water distribution pipe, start 

at the most remote outlet on each branch (either hot or cold 
branch) and, working back toward the main distribution 
pipe to the building, add up the water suppl)' fixture unit 
demand passing through each segment of the distribution 
system using the related hot or cold coluiim of Table 
E20 1.1. Knowing demand, the size of each segment shall 
be read from the second left-hand column of the same ta- 
ble and maximum developed length column selected in 
Steps 1 and 2, under the same or next smaller size meter 
row. In no case does the size of any branch or main need to 
be larger that the size of the main distribution pipe to the 
building established in Step 4. 



128 



2003 INTERNATIONAL PLUMBING CODE® 



G SYSTEP 



TABLE E201.il 
OF WATER METERS, I/IASNS AHD D8STR 
m WATER SUPPLY FIXTURE UMl VALUES (w.si.y.) 



METER 

AND 

SERVICE 

PIPE 

(imiches) 


DtSTRieOTSON 

PIPE 

(inches) 


RM3CIMUM DEVELOPMENT LE^SGTH (feet) 


Pressure ^@og® 30 to 39 psi 


40 


60 


@0 


100 


ISO 


200 


2S0 


300 


400 


500 


V, 


'// 


2.5 


2 


1.5 


1.5 


1 


1 


0.5 


0.5 








V, 


\ 


9.5 


7.5 


6 


5.5 


4 


3.5 


3 


2.5 


2 


1.5 


\ 


1 


32 


25 


20 


16.5 


11 


9 


7.8 


6.5 


5.5 


4.5 


1 


1 


32 


32 


27 


21 


13.5 


10 


8 


7 


5.5 


5 


% 


I-V4 


32 


32 


32 


32 


30 


24 


20 


17 


13 


10.5 


1 


l-'/4 


80 


80 


70 


61 


45 


34 


27 


22 


16 


12 


i-V, 


I-V4 


80 


80 


80 


75 


54 


40 


31 


25 


17.5 


13 


1 


1-V, 


87 


87 


87 


87 


84 


73 


64 


56 


45 


36 


1-V: 


l-V, 


151 


151 


151 


151 


117 


92 


79 


69 


54 


43 


2 


l-'A 


151 


151 


151 


151 


128 


99 


83 


72 


56 


45 


1 


2 


87 


87 


87 


87 


87 


87 


87 


87 


87 


86 


i-V, 


2 


275 


275 


275 


275 


258 


223 


196 


174 


144 


122 


2 


2 


365 


365 


365 


365 


318 


266 


229 


201 


160 


134 


2 


2-V, 


533 


533 


533 


533 


533 


495 


448 


409 


353 


311 



METER 

AND 
SERVICE 

PIPE 
(Inches) 


DISTRIBOTIOW 

PIPE 

(inches) 


MAXIMUM DEVELOPMENT LENGTH (feet) 


Pressure Range 40 to 43 psi 


40 


80 


30 


100 


ISO 


200 


250 


300 


400 


500 


V4 


Vz- 


3 


2.5 


2 


1.5 


1.5 


1 


1 


0.5 


0.5 


0.5 


% 


V4 


9.5 


9.5 


8.5 


7 


5.5 


4.5 


3.5 


3 


2.5 


2 


\ 


1 


32 


32 


32 


26 


18 


13.5 


10.5 


9 


7.5 


6 


1 


1 


32 


32 


32 


32 


21 


15 


11.5 


9.5 


7.5 


6.5 


V4 


I-V4 


32 


32 


32 


32 


32 


32 


32 


27 


2) 


16.5 


1 


1-V4 


80 


80 


80 


80 


65 


52 


42 


35 


26 


20 


i-V, 


l-'/4 


80 


80 


SO 


SO 


75 


59 


48 


39 


28 


21 


1 


1-V: 


87 


87 


87 


87 


87 


87 


87 


78 


65 


55 


l-V: 


1-Vz 


151 


151 


151 


151 


151 


130 


109 


93 


75 


63 


2 


l-V: 


151 


151 


151 


151 


151 


139 


115 


98 


77 


64 


1 


2 


87 


87 


87 


87 


87 


87 


87 


87 


87 


87 


1-V, 


2 


275 


275 


275 


275 


275 


275 


264 


238 


198 


169 


2 


2 


365 


365 


365 


365 


365 


349 


304 


270 


220 


185 


2 


2-'/2 


533 


533 


533 


533 


533 


533 


533 


528 


456 


403 



(continued) 



APPENDIX E 



lii^illlUri SHE OF WMEB METEKS, ^AIMS AMD OSSTRIBUTI©!^ PiP8i>3G 
BASED ON WMiR SUPP'LY FIX? PSE y^lT ^ALPES (w.8Xy.) 



SHETEHAMD 
3iR¥l€E FIFE 


DISTRlBimON PIPE 


MMIMyM ©i¥lL@F^Eifr LEM6TH (f®®S) 




Prsssyre ^ang© g® t© SO p@l 


4® 


m 


m 


1®® 


1g® 


209 


2i© 


30® 


4M 


iOQ 


V. 


v,« 


3 


3 


15 


2 


1.5 


1 


1 


1 


0.5 


0.5 


% 


^/. 


9.5 


9.5 


9.5 


8.5 


6.5 


5 


4.5 


4 


3 


2.5 


\ 


1 


32 


32 


32 


32 


25 


18.5 


14.5 


12 


9.5 


8 


1 


1 


32 


32 


32 


32 


30 


22 


16.5 


13 


10 


8 


^/. 


1-V. 


32 


32 


32 


32 


32 


32 


32 


32 


29 


24 


1 


1-V. 


80 


80 


80 


80 


80 


68 


57 


48 


35 


28 


1-V, 


1-V. 


80 


80 


80 


80 


80 


75 


63 


53 


39 


29 


1 


1-V, 


87 


87 


87 


87 


87 


87 


87 


87 


82 


70 


1-V, 


1-V, 


151 


151 


151 


151 


151 


151 


139 


120 


94 


79 


2 


1-V, 


151 


151 


151 


151 


151 


151 


146 


126 


97 


81 


1 


2 


87 


87 


87 


87 


87 


87 


87 


87 


87 


87 


1-V, 


2 


275 


275 


275 


275 


275 


275 


275 


275 


247 


213 


2 


2 


365 


365 


365 


365 


365 


365 


365 


329 


272 


232 


2 


2-V, 


533 


533 


533 


533 


533 


533 


533 


533 


353 


486 




SERVICE PIPE 
(Inches) 


DISTmBUnOI^ PIPE 
(Ineheti) 


KSMSRSOM ©EVEL0PMENT LEWOTH {im%) 


Pressure Rang® Ov©r i® 


m 


m 


m 


1®® 


li0 


im 


iSO 


306 


400 


soo 


% 


Va^ 


3 


3 


3 


2.5 


2 


1.5 


1.5 


1 


1 


0.5 


V4 


V. 


9.5 


9.5 


9.5 


9.5 


7.5 


6 


5 


4.5 


3.5 


3 


% 


1 


32 


32 


32 


32 


32 


24 


19.5 


15.5 


11.5 


9.5 


1 


1 


32 


32 


32 


32 


32 


28 


28 


17 


12 


9.5 


% 


1-V. 


32 


32 


32 


32 


32 


32 


32 


32 


32 


30 


1 


1-V. 


80 


80 


80 


80 


80 


80 


69 


60 


46 


36 


I-V2 


1-V. 


80 


80 


80 


80 


80 


80 


76 


65 


50 


38 


1 


1-V, 


87 


87 


87 


87 


87 


87 


87 


87 


87 


84 


1-V, 


1-V, 


151 


151 


151 


151 


151 


151 


151 


144 


114 


94 


2 


1-V, 


151 


151 


151 


151 


151 


151 


151 


151 


118 


97 


1 


2 


87 


87 


87 


87 


87 


87 


87 


87 


87 


87 


1-V, 


2 


275 


275 


275 


275 


275 


275 


275 


275 


275 


252 


2 


2 


365 


368 


368 


368 


368 


368 


368 


368 


318 


273 


2 


2-V, 


533 


533 


533 


533 


533 


533 


533 


533 


533 


533 



a. Minimum size for building supply is V4-iiich pipe. 



13® 



2003 IMTE^NMIOI^AL PLUMBING CODE® 



)T^yCTy^AL SAFETY 



Si€T8©i ¥W1 

BQBmQ m W©@D MiiiBiRS 

=1 Joisft moteMmg. Notches on the ends of joists shall not 
exceed one-fourth the joist depth. Holes bored in joists shall not 
be within 2 inches (5 1 mm) of the top or bottom of the joist, and 
the diameter of any such hole shall not exceed one-third the 
depth of the joist. Notches in the top or bottom of joists shall not 
exceed one sixth the depth and shall not be located in the middle 
third of the span. 

Fl®lo2 SMd cuUmg aiindl moteinmg. In exterior walls and 
bear-ing partitions, any wood stud is permitted to be cut or 
notched to a depth not exceeding 25 percent of its width. Cut- 
ting or notching of studs to a depth not greater than 40 percent 
of the width of the stud is permitted in nonbearing partitions 
supporting no loads other than the weight of the partition. 

F1®1<,3 Bored fiaoles. A hole not greater in diameter than 40 
per-cent of the stud width is permitted to be bored in any wood 
stud. Bored holes not greater than 60 percent of the width of the 
stud is permitted in nonbearing partitions or in any wall where 
each bored stud is doubled, provided not more than two such 
successive doubled studs are so bored. In no case shall the edge 
of the bored hole be nearer than 0.625 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. 

F101.4 Ciattimg, motelhinimg smd Iboriimg Ih©fl(£s Dim stouicliimirffll 
steel ffrffiffinlago The cutting, notching and boring of holes in 
structural steel framing members shall be as prescribed by the 
registered design professional. 



steeD frsffiinmg. Flanges and lips of load-bearing cold-formed 
steel framing members shall not be cut or notched. Holes in 
webs of load-bearing cold-formed steel framing members shall 
be permitted along the centerline of the web of the framing 
member and shall not exceed the dimensional limitations, 
penetration spacing or minimum hole edge distance as pre- 
scribed by the registered design professional. Cutting, notching 
and boring holes of steel floor/roof decking shall be as pre- 
scribed by the registered design professional. 

F101.6 Craiiitlmg, moteismg smd Iboirmg Snoles m mosasirmctoirfflll 
coM=fform®d steeE wall frffinmimgo Flanges and lips of 
nonstructural cold-formed steel wall studs shall not be cut or 
notched. Holes in webs of nonstructural cold-formed steel wall 
studs shall be permitted along the centerline of the web of the 
framing member, shall not exceed 1.5 inches (38 mm) in width 
or 4 inches (102 mm) in length, and the holes shall not be 
spaced less than 24 inches (610 mm) center to center from an- 
other hole or less than 10 inches (254 mm) from the bearing 



132 a003 INTERNATIONAL PLUa/IBING CODE® 



GlOLl Scope, This appendix provides general guidelines for 
the requirements for vacuum drainage systems. 



,1 System desigim. Vacuum drainage systems shall be 
designed in accordance with manufacturer's recommenda- 
tions. The system layout, including piping layout, tank assem- 
blies, vacuum pump assembly and other conponents/designs 
necessary for proper function of tiie system shall be per manu- 
facturer's recommendations. Plans, specifications and other 
data for such systems shall be submitted to the local adminis- 
trative authority for review and approval prior to installation. 



,2,2 Fixtures, Gravity-type fixtures used in vacuum 
drainage systems shall comply with Chapter 4 of this code. 

Gl 01,2.3 Draiiaage istere umits. Fixture units for gravity 
drainage systems which discharge into or receive discharge 
from vacuum drainage systems shall be based on values in 
Chapter 7 of this code. 

Gl®1.2,4 Water siapply fistur© lumits. Water supply fixture 
units shall be based on values in Chapter 6 of this code with 
the addition that the fixture unit of a vacuum-type water 
closet shall be "1." 

Gl® 1.2.5 Traps amd clessnoaats. Gravity-type fixtures shall 
be provided with traps and cleanouts in accordance with 
Chapter 10 of this code. 



is. Vacuum drainage pipe, fitting and 
valve materials shall be as recommended by the vacuum 
drainage system manufacturer and as permitted by this 
code. 

G1CJL3 Testirag amd demomstratioras. After completion of the 
entire system installation, the system shall be subjected to a 
vacuum test of 19 inches (483 mm) of mercury and shall be 
operated to function as required by the admiiustrative authority 
and the manufacturer. Recorded proof of all tests shall be 
submitted to the administrative authority. 

G1®1,4 Writtera mstraictioms. Written instmctions for the 
operations, maintenance, safety and emergency procedures 
shall be provided by the building owner as verified by the ad- 
ministrative authority. 



2003 fWTERM^TIOfiMAL PLUMBIWG CODE® 133 



134 2003 BNTERNAT80MAL PLUMBING CODE® 



IMDEI 



h 



ABS IPIFE 

Where permitted Table 605.3, Table 605.5, 

Table 702.1, Table 702.2, Table 702.3, Table 702.4 

ACCESS TO 

Cleanouts 708 

Fixtures 405.2 

Interceptors and separators 1003.10 

ACCESSIBLE PLyMeBNOFACiyTllES 



ADMiWlSTRATDOM 

Applicability 102 

Approval 105, 107.4 

Fees 106.6 

Inspections 107 

Intent 101.3 

Maintenance 102.3 

iVieans of appeal 109 

Scope 101.2 

Validity 106.5.2 

Violations 108 

MR ADMB1TAMCE ¥AL¥ES 

Definition 202 

Where permitted 917 

Am BREAK 

Definition 202 

Method of providing 802.1.5,802.1.6, 

802.1.7,802.2 
Required 802.2.2 

Am GAP 

Definition 202 

Method of providing 608.15.1,802.2.1 

Required 608.15.1,802.1,802.1.1,802.1.2 

802.1.3, 802.1.4, 802.1.5, 802.1.6. 802.1.7 

A8RTEST 312.3,312.5,312.7- 

ALTERATIONS AWOREPAII^S 102.4 

ALTERMATiVEMATEODALSAWDEOyiPMEMT. . . . 105.2 
APPROVED 

Definition 202 

ASBESTOS-CEMEIMT PDPE 

Where permitted Table 702.2, Table 702.3 

ATMOSPHERIC VACyyia BREAKER Table 608.1, 

608.13.6,608.15.4, 

608.15.4.1,608.16.5 

AUTOMATIC CLOTHES WASHER 406 



Definition 202 

Required 608.1 

Standards Table 608.1 

BACKFLOW PROTECTION 608.1 

BACKWATER ¥AL¥ES 

Where required 715 

BALL COCK (s©© Fill mW®} 

BAROMETRIC LOOP 608.13.4 

BATHTyeS 407 

BEDPAM STEAMERS 202 

BEDPAMWASHERS 202 

rS 408 

JOSTERSYSTEM 606.5 

5TTLIWG ESTABLISHMENT 1003.7 

mSS PIPE 

Where permitted Table 605.3, Table 605.4, 

Table 605.8, Table 702.1 



Definition 202 

Branchesof Table 710.1(2) 

Material Table 702.1, Table 702.2 

Sizing Table 710.1(1) 

!|LD1W0 DRAIWAOE SYSTEMS 

Below sewer level 712.1 



Definition 202 

Material Table 702.3 

Sizing Table 710.1(1) 

YSTEMS 

Connection to public water and sewer 701.2 

1002.6 



CAST4R0N PIPE 

Materials Table 702.1, Table 702.2, 

Table 702.3, Table 702.4 

CAULKINO FERRULES 705.18 

CHAMOE m DIREOTiOM OF DRAWAQE 

PJPIMG Table 706.3 

CHEMICAL WASTE 

Exclusion from the sewer 803.3 

Neutralizing 803.2 

Requirements 702.5 

CHLORIi^ATED P©LY¥IWYL/PIFE OR TOBING 

Where Permitted Table 605.3, Table 605.4 

CIRCUIT ¥E[MT 911 

IPE Table 702.3 



lACKFLOW PRE¥EWTER 



306.3 Baseofstack 708.3.4 

Building drain 708.3.1,708.3.5 

Change of direction 708.3.3 



2003 JWTER^3^T50WAL PLUMilNG CODE® 



135 



INDEX 



Clearances 708.8 

Definition 202 

Direction of flow 708.5 

Horizontal drains 708.3.1 

Location of 708.3 

Manholes 708.3.6 

Plugs, materials for 708.2 

Prohibited installation of 708.6 

Sewers 708.3.2 

Size 708.7,708.8 

CODE OFFICIAL 

Application for permit 106.3 

Appointment 103.2 

Definition 202 

Department records 104.8 

Duties and powers 1 04 

General 104.1 

Identification 104.6 

inspections 107 

COMBINATION DRAIN AND VENT SYSTEM 912 

COMBINED DRAIN 202 

COMMONVENT 202,908 

CONCRETE PIPE 

Where permitted Table 702.3 

CONDUCTOR 202 

CONNECTION TO PLUMBING SYSTEM 

REQUIRED 701.2 

CONNECTIONS TO SUMPS AND EJECTORS 

Below sewer level 712.1 

CONSERVATION 

Fixtures 604.4 

Flow rates Table604.3 

Insulation 505,607.2.1 

CONSTRUCTION DOCUMENTS 106.3.1 

CONTROLLED FLOW STORM DRAINAGE 1110 

COPPER OR COPPER-ALLOY PIPE OR TUBING 

Where permitted Table 605.3, Table 605.4 

CROSS-CONNECTIONS 608 

CUTTING OR NOTCHING, STRUCTURAL 
MEMBERS 307.2, Appendix F 



DEAD ENDS IN DRAINAGE SYSTEM 704.5 

DESIGN PROFESSIONAL 105.4.2,105.4.3, 

105.4.4, 105.4.5, 107.2.2, 109.2 

DETRIMENTAL WASTES 302 

DISHWASHING MACHINE 409 

DISINFECTION OF POTABLE WATER SYSTEM .... 610 

DISTANCE OF TRAP FROM VENT Table 906.1 

DISTRIBUTION SYSTEM (See WATER) 
DRAIN 

Roof 1105 

Storm 1106 

DRAINAGE FIXTURE UNITS 



Definition, fixture unit 202 

Values for continuous flow 709.3 

Values for fixtures Table 709.1 

DRAINAGE SYSTEM 

Connection to seweror private disposal system . . . 701.2 

Deadends 704.5 

Determining load and size 710.1 

Fixture units Table 709.1 

Indirect waste 802 

Joints 705 

Materials 702 

Material detrimental to 302 

Offset sizing 711 

Provisions for future fixtures 710.2 

Sizing Table 710.1(1), Table710.1{2) 

Slopeofpiping Table 704.1 

Sumps and ejectors 712 

Testing 312 

DRINKING FOUNTAINS 410 



EJECTORS 712 

EMPLOYEE FACILITIES 403.4 

EXISTING BUILDING PLUMBING SYSTEMS 102.2 



FACILBTIES 403 

FAUCETS 424 

FEES 106.6 

FERRULES 705.18 

FILL VALVE 425.3.1 

RTTINGS 

Drainage system 706 

Material standards 605.5, Table 605.5, 

702.4, Table 702.4 

FIXTURE FITTINGS 424 

FSXTORE TRAPS 1002 

Acid-resisting 1002.9 

Building 1002.6 

Design of 1002.2 

For each fixture 1002.1 

Prohibited 1002.3 

Seals 1002.4 

Setting and protection 1002.7 

Size 1002.5 

FIXTURE UNITS 

Definition 202 

Values for continuous flow 709.3 

Values for fixtures 709.1, Table 709.1 

FIXTURES (See PLUMBING FIXTURES) 

FLOOD LEVEL RIM 202 

FLOOD RESISTANT CONSTRUCTION 



136 



2003 INTERNATIONAL PLUMBING CODE® 



INDEX 



Design Flood Elevation 202 

Flood Hazard Area 202 

Flood Hazard Resistance 309 

-LOORDRAaNS 412, Table 709.1 

^LOO^DRAiiSIS, EMERGENCY 202 

=LOOR FLANGES 405.4.1,405.4.2 

■LOWeATES 604.3, Table 604.3 

Table 604.4, 604.10 
'LUSHWO DE¥fl©ES 

Flush tanks 425.2,425.3,604.3,604.5 

Flushometer tanks 425.3,604.3,604.5 

Flushometer valves 425.3,604.3 

Required 425 

'OODHANDLiMG DRAINAGE 802.1.1 

-OOD WASTE GRiSSiOER 413 

FREEZING, FROTECTSOlhi OF PIPES 305.6 

■ROST CLOSURE 904.2 

SS 704.4 



. . . . Table 605.3, 
Table 605.4, 605.18 



IZED STEEL PIPE 



lARBAOE DISPOSALS 413 

lEWERAL REGULATIOf^S 301 

Conflicts 301.7 

Connection to plumbing system 301.3 

Connection to public water and sewer 301.3,301,4 

Elevator machinery rooms 301.6 

Health and safety 108.7,108.7.1,108.7.2,108.7.3 

Materials detrimental 302,302.1,302.2 

Piping measurements 301.5 

Protection of pipes 305 

Rodentproofing 304,304.1,304.2,304.3,304.4 

Sleeves 305.4 

Strains and stresses in pipe 308 

Toilet facilities for workers 311 

Trenching, excavation and backfill 306 

Washroom requirements 310 

iREASEIOTERCEFTORS AND TRAPS 202,1003 

Approval 1003.3.4 

Capacity Table 1003.3.4.1, 

1003.4.2.1, 1003.4.2.2 

In commercial buildings 1003.5 

Not required 1003.3.3 

Required 1003.1 

JUTTEBS 11 06.6, Table 1106.6 



Attachment to buildings 308.4 

Baseofstacks 308.9 



Definitions 202 

iViaterial 308.3 

Seismic 308.2 

Spacing Table 308.5 

101.3 

422,609,713 

I 608.16.3 

H0BI20WTAL 

Slope for drainage pipe 704.1 

HOSPITAL PLUMBING FIXTURES 422 

Clinical sinks 422.6 

Height of special controls 422.10 

Sterilizer equipment 422.9 

n WATEIR 

Definition 202 

Flow of hot water to fixtures 607.4 

Heaters and tanks Chapters 

Recirculating pump 607.2.3 

Supply system 607 

D)USETRAP 1002.6 

1 

/ASTE 802 

Airgaporbreak 802.2.1,802.2.2 

Food handling establishment 802.1.1 

Receptors 802.3 

Special wastes 803 

Waste water temperature 803.1 

Where required 802.1 

D!¥IDUAL¥EMT 907 

SPECTiOW 107.1 

Final 107.1 

Reinspection 107.3.3 

Required 107.3 

Rough-in 107.1 

Scheduling of 107.1 

Testing 107.3 

SPECTOK (S©© CODE OFFICIAL) 

505,607.2.1 

^S 1003 

Accessto 1003.10 

Approvalof 1003.2,1003.4 

Bottling establishments 1003.7 

Capacity of grease interceptors Table 1003.3.4.1 

Definition 202 

Laundries 1003.6 

Notrequired 1003.3.3 

Oil and flammable liquids separators 1003.4 

Rate offlow control for grease interceptors . . . 1003.3.4.2 

Required 1003.1 

Slaughterhouses 1003.8 

Venting 905.4,1003.9 

W,LAW!M 608.16.5 



137 



INDEX 



ISLAND FIXTURE VENT 913 



SAND CONNECTIONS 605,705 

ABS plastic pipe 605.10,705.2 

Asbestos cement pipe 605.11,705.3 

Between different materials 605.23,705.4,705.16 

Brasspipe 605.12,705.4 

Brazed joints 605.12.1,605.14.1, 

605.15.1,705.9.1,705.10.1 

Cast-iron pipe 705.5 

Caulkedjoint 705.5.1,705.11.1 

Concrete pipe 705.6 

Copper or copper-alloy pipe 605.14,705.9 

Copper or copper-alloy tubing 605.15,705.10 

CPVC plastic pipe 605.16 

Expansion joints 308.8 

Galvanized steel pipe 605.18 

Mechanical joints 605,705 

Polybutylene plastic pipe ortubing 605.19 

Polyethylene plastic pipe or tubing 605.20 

Prohibited 605.9,707 

PVC plastic pipe 605.21,705.14 

Slipjoints 405.8,1002.2 

Soldered joints 605.14.3,605.15.4, 

705.9.3,705.10.3 

Solvent cementing 605,705 

Stainless steel 605.22 

Threaded 605.10.3,605.12.3,605.14.4, 

605.16.3, 605.18.1, 605.21.3, 705.2.3, 

705.9.4,705.12.1,705.14.3 

Vitrified clay pipe 705.15 

Welded 605.12.4,605.14.5,703.4.4,705.9.5 



Above-ground drainage and vent pipe Table 702.1 

Alternative 105.2 

Approval 107.4 

Building sewer pipe . 702.3 

Building storm sewer pipe 1102.4 

Chemical waste system 702.5 

Fittings Table 605.5, Table 702.4, 

Table 1102.7 

Identification 303.1 

Joints 605. 705 

Roof drains 1105 

Sewer pipe 702.3 

Standards Chapter 13 

Storm drainage pipe Table 1102.4 

Subsoil drain pipe 1102.5 

Underground building drainage and vent pipe .... 702.2 

Ventpipe 702.1,702.2 

Water distribution pipe Table 605.4 

Water service pipe Table 605.3 

lATERIAL, FiXTIURES 

Quality 402.1 

Special use 402.2 

lATERIAL, SPECIAL 

Caulking ferrules 705.18 

Cleanout plugs 708.2 

Sheet copper 402.3 

Sheet lead 402.4 

Soldering bushings 705.19 

lECHAESlDCALJOiMTS 605,705 

iOMPOMiLE WATER 608.1,608.8 



[BTCHEN 418 



LAUNDRIES 1003.6 

LAUNDRYTRAY 415 

LAVATORDES 416 

LEAD PIPE 202 

LEADERS 1106 

LIGHT AND VENTILATION REQUIREMENT 310.1 

LOADING, FIXTURE UNIT VALVE Table 709 



MANHOLES 708.3.6 

MANIFOLDS 604.10 



"FSETS 

Definitions 202 

Drainage 711 

Venting 915.1 

Through walls or roofs 305.5,305.7 



ERftfllT 

Application for 106.3 

Conditions of 106.5 

Fees 106.6 

Suspension of 106.5.5 

P8WG 

Construction documents 105.4.4 

Drainage, horizontal slope Table 704.1 



938 



2003 lNTER^AT80f^AL PLUMBIMG CODE® 



JNDEX 



Drainage piping installation 704 

Drainage piping offset, size 711 

Joints 605, 705 

FIPIMO FROTEOTIOW 

Backfilling 306.3 

Breakage 305.2 

Corrosion 305.1 

Footings 305.5 

Freezing 305.6 

Penetration 305.5 

Tunneling 306.4 

FLUMBWG FACiLITiES 403 

PLUMBilSiG FIXTURES 

Accessible 404 

Automatic clothes washers 406 

Bidet 408 

Clearances 405.3 

Definition 202 

Dishwashing machine 409 

Drainage fixture unit values Table 709.1 

Drinking fountain 410 

Emergency showers 411 

Eyewash stations 411 

Floor sinks 427 

Floor and trench drains 412 

Food waste grinders 413 

Future fixtures 704.4 

Garbage can washer 414 

Garbage disposal 413 

Hospital 422 

Installation 405 

Joints at wall or floor 405.5 

Kitchen sink . 418 

Laundry tray 415 

Lavatories 416 

l\^inimum facilities Table 403.1 

Ornamental pools 423.1 

Quality 402.1 

Separate facilities 403.2 

Settings 405.3 

Showers 417 

Sinks 418 

Slop sinks 418 

Urinals 419 

Water closets 420 

Water coolers 410 

Water supply protection 608 

PLUMBIMG INSPECTOR (S©© CODE OFFICIAL) 

PNEUMATIC EJECTORS 712 

POLYBUTYLENE PiPE OR TUBBMO 

Where permitted Table 605.3, Table 605.4 

POLYETHYLENE PIPE OK TUBING 

Cross-linked Table 605.3, Table 605.4 

PE-AL-PE Table 605.3, Table 605.4 

PEX-AL-PEX Table 605.3. Table 605.4 



POTABLE WATER, PeOTECTION OF : 608 

PRESSURE OF WATER DiSiraeUTlOW 604.6 

PeOHIBITED 

Joints and connection 605.9,707 

Traps 1002.3 

PROTECTDOW OF POTABLE WATER 608 

PUMPING EQUiPMEMT 712 

PVCPIFE Table 605.3, Table 605.4, 

Table 702.1 , Table 702.2, Table 702.3 



@ 



QUALITY OF WATER 

General 608.1 

B 

^AiMWATERDRAIIMAGE Chapter 11 

KEDOCED PRESSURE PRiWCSPLE 
BACKFLOW PBE¥ENTE^ 

Definition 202 

Periodic inspections 312.9 

Standard Table 608.1, 608.1 3.2, 608.1 6.2 

Where required 608.15.2,608.16.2, 

608.16.4, 608.16.4.1, 608.16.5, 608.16.6 

RELIEF VALVES 504.4,504.5,504.6 

Definition . 202 

RELIEFVEMT 911.4,914,916.2 

Definition 202 

ROOF DRAWS 1102.6,1105 

Definition 202 

TOU@H=iM lE^SPECTlOM 107.1 



SANITARY SEWER (See BUILDIMG SEWER) 

SAMSTARYTEES 706.3 

SCREWED JOINTS (See JOiOTS AMD CONNECTIONS) 

SEPARATE FACILSTIES 403.2 

SERVICE SWICS Table 403. 1,41 8 

SEWER (S©e ByiSdSng S©w©r) 

SHEETCOPPER 402.3 

SHEETLEAD 402.4 

SHOWERS Table 403. 1,41 7 

SBLLCOCK 424,608.15.4.2 

Si^KS 418 

SIZii^lG 

Drainage system 710 

Fixturedrain 709 

Fixture water supply 604.5 

Ventsystem 916 

Water distribution system 604 

Waterservice 603.1 

SLAUGHTERHOUSES 1003.8 



2003 JNITE^MATIOWAL PLUMBING CODE® 



139 



INDEX 



SLEEVES 305.4 

SUP JOINTS (See JOINTS AND CONNECTIONS) 

SOLDERING BUSHINGS 705.19 

SOLVENT CEMENTING (See JOINTS AND CONNECTIONS) 

SPECIAL PLUMBING FIXTURES 423 

SPECIALWASTES 803 

STACKVENT 903.1 

STAINLESS STEEL PIPE Table 605.4, Table 605.5 

STANDARDS 

Material Chapter 13 

STANDPIPE DRAIN 802.4 

STEEL PIPE (See also MATERIAL) 

Where permitted Table 605.4, Table 702.1, 

Table 702.2, Table 702.3, 
Table 1102.4, Table 1102.5 

STERILIZER PIPE 422.9 

STORM DRAINS 

Building size 1106.1 

Building subdrains 1112.1 

Building subsoil drains 1111.1 

Conductors and connections 1104 

Definition 202 

General 1101 

Prohibited drainage 1101.3 

Roof drains 1102.6.1105 

Secondary roof drains 1107 

Sizing of conductors, leaders and storm drains .... 1106 

Sizing of roof gutters 1106.6 

Sizing ofvertical conductors and leaders 1106.2 

Traps 1103 

Values for continuous flow 1109 

Where required 1101.2 

STRAPS (See HANGERS AND SUPPORTS) 

STRUCTURAL SAFETY 307, Appendix F 

SUBDRAIN BUILDING 1112.1 

SUBSOIL DRAIN PIPE 1111.1 

SUMPVENT 916.5 

SUMPS 1113 

SUPPORTS (See also PIPING PROTECTION) 308 

SWIMMING POOL 

Definition 202 

SWIMMING POOL DRAINAGE 802.1.4 



TEMPERATURE AND PRESSURE RELIEF VALVE ... 504 

TEMPERATURE OF WASTE WATER 803.1 

TEST 

Drainage and vent airtest 312.3 

Drainage and vent final test 312.4 

Drainage and vent water test 312.2 

Forced sewer test 312.7 

Gravity sewer test 312.6 

Required tests 312.1 

Testgauges 312.1.1 



Test of backflow prevention devices 312.9 

Test of conductors 312.8 

THERMAL EXPANSION CONTROL 607.3 

THREADED JOINTS (See JOINTS AND CONNECTIONS) 

TOILET FACILITIES FOR WORKERS 311 

TOILETS (See WATER CLOSETS) 
TRAPS 

Acid-resisting 1002.9 

Building 1002.6 

Design 1002.2 

Prohibited types 1002.3 

Seal 1002.4 

Separate for each fixture 1002.1 

Size Table 709.1. Table 709.2 

TRENCH DRAINS 412 

TRENCHING, EXCAVATION AND BACKFILL 306 

TUNNELING 306.4 



U 



UNDERGROUND DRAINAGE AND VENT PIPE. . . . 702.2 
URINALS 419 



VACUUM BREAKERS . . . Table608.1,608.13.,5. 608.13.6, 

608.13.8,608.15.4 

VALVES 

Airadmittance 202, 917 

Backwater 715 

Definition 202 

Pressure reducing 604.8 

Relief 202, 504.4 

Temperature-actuated flow reduction valves 424.5 

Transfer valves 424.6 

VENT 

Individual 907 

Sizing 904.2,908.3, 910.4, 

912.3,916.1,916.2 

VENT RELIEF SIZE 914 

VENT STACK 

Definition 202, 903.2 

VENTS AND VENTING 

Branch vents 916.4.1 

Circuitorloop 911 

Combination drain 912 

Common 908 

Definition 202 

Distance from trap Table 906.1 

Engineered systems 918 

Island fixture 913 

Stack vents 903.1 

Vent stack 903.2 



140 



2003 INTERNATIONAL PLUMBING CODE® 



Vent terminal 904 

Waste stack 910 

Wet vent 909 



W 



WALL HUMO WATER CLOSETS 420 

WASHii^e MAei=aii^iS 406 

W^STi 

Indirect. 802 

Special 803 

WASTi STACK 910 

WASTE WATER TiMPERMURE 803.1 

WATER 

Booster 606.5 

Cross-connection 608.5 

Distribution piping material TaW© 605.4 

Excessive pressure 604.8 

Hammer 604.9 

WATER CLOSETS 420 

WATER C0WSERVAT8©M 

Fixtures 604.4 

Flowrates Tab8@604.4 

WATERHEATE^S Chapter5 

WET ymi 909 

WIPED JOIMTS 705.13.2 

WOe^iRS'TOSLETFACiLBTSES 311 



20m fWTERMATOONAL PLyMBSN© (SODE® M1 



142 2003 INTERNATIONAL PLUMBING CODE® 



EDITORIAL CHANGES - SECOND PRINTING 

Page 34, 504.6.2: line 2 now reads . . . those materials listed in Section 605.4 or shall be tested, rated 

Page 45, 608.13.3: hne 4 now reads . . . CAN/CSA-B64.3. 

Page 95, ASTM: Standard reference number now reads . . . D 2665 — 01 

Page 98, NSF: Standard reference number now reads . . . 1996a 

EDITORIAL CHANGES - THIRD PRINTING 

Page 12, FLUSH TANK: line 1 now reads ... A tank designed with a fill valve and flush . . . 

Page 51, TABLE 702.1: row 8, column 2 now reads . . . ASTM F 1488, ASTM F 891. 



Page 51, TABLE 702.1: row 15, column 2 now reads 
Page 52, TABLE 702.2: row 8, colunm 2 now reads . 
Page 52, TABLE 702.2: row 12, column 2 now reads 
Page 52, TABLE 702.3: row 3, column 1 now reads . 
Page 52, TABLE 702.3: row 8, column 2 now reads . 



. ASTM D 2665; ASTM D 2949; CSA B181.2; ASTM F 1488. 

ASTM F 1488, ASTM F 891. 

. ASTM D 2665; ASTM D 2949; CSA B 181.2. 

Asbestos-cement pipe 

ASTM F 1488, ASTM F 891. 



Page 52, TABLE 702.3: inserted new row 12 which now reads . . . Coextruded PVC sewer and drain PS 25, PS 50, PS 100 (cellular 
core) ASTM F 891. 

Page 52, TABLE 702.3: row 16, column 2 now reads . . . ASTM D 2665; ASTM D 2949; ASTM D 3034; CSAB182.2; CAN/CSA 
B182.4. 

Page 93, Standard Reference Number 1055 now reads . . . 1055 — 97 Performance Requirements for Chemical Dispensing Sys- 
tems . . . 

Page 130, TABLE E201.1 — continued: row 4, column 8 now reads ... 5. 

EDITORIAL CHANGES - FOURTH PRINTING 

Page 29, 417.1: line 4 now reads . . . form to the requirements of Section 424.3. 

Page 92, ASSE: reference number 1002-99 now reads . . . Performance Requirements for Antisiphon Fill Valves (Ballcocks) for 
Gravity Water Closet Flush Tanks 

Page 92, ASSE: reference number 1004-90 now reads . . . Performance Requirements for Backflow Prevention Requirements for 
Commercial Dishwashing Machines 

Page 92, ASSE: reference number 1006-89 now reads . . . Performance Requirements for Residential Use Dishwashers 

Page 92, ASSE: reference number 1016-96 now reads . . . Performance Requirements for Individual Thermostatic, Pressure Bal- 
ancing and Combination Control Valves for Individual Fixture Fittings 

Page 92, ASSE: reference number 1019-97 now reads . . . Performance Requirements for Vacuum Breaker Wall Hydrants, Freeze 
Resistant, Automatic Draining Type 

Page 93, ASSE: reference number 1066-97 now reads . . . Performance Requirements for Individual Pressure Balancing In-Line 
Valves for Individual Fixture Fittings 

Page 93, ASSE: reference number 5013-98 now reads . . . Performance Requirements for Testing Reduced Pressure Principle 
Backflow Prevention Assembly (RPA) and Reduced Pressure Fire Protection Principle Backflow Preventers (RFP) 

Page 93, ASSE: reference number 5015-98 now reads . . . Performance Requirements for Testing Double Check Valve Backflow 
Prevention Assembly (DCVA) 

Page 93, ASSE: reference number 5048-98 now reads . . . Performance Requirements for Testing Double Check Valve Detector As- 
sembly (DCDA) 

EDITORIAL CHANGES - FIFTH PRINTING 

Page 23, TABLE 403.1: title now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURES' 

Page 24, TABLE 403.1— continued: title now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURES' 

Page 25, TABLE 403.1— continued: title now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURES' 

Page 25, TABLE 403.1 — continued: row 9, column 7 now reads . . . See Section 411 

Page 25, TABLE 403.1 — continued: row 9, column 8 now reads ... 1 per 1,000 

Page 118, TABLE E103.3(2): row 26, column 3 now reads . . . Flush tank 

2003 INTERNATIOMAL PLUMBDMG CODE® 143 



Page 118, TABLE E103.3(2): row 28, column 3 now reads . . . Flush tank 



144 2003 ENTERNATIONAL PLUMBING CODE® 



ERRATA TO THE 

2003 IISTTERNATIONAL PLUMBING CODE 

April 2005 

FOURTH PRIISTTING - March 2005 

TABLE 403.1: title now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURES' 

TABLE 403.1- continued: title now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING 
FIXTURES' 

TABLE 403.1— continued: titie now reads . . . MINIMUM NUMBER OF REQUIRED PLUMBING 
FIXTURES' 

TABLE 403.1— continued: row 8, column 7 now reads . . . See Section 411 

TABLE 403.1— continued: row 8, column 8 now reads ... 1 per 1,000 

TABLE E103.3(2): row 24, column 3 now reads . . . Flush tank 

TABLE E103.3(2): row 26, column 3 now reads . . . Flush tank 

THIRD PRIISTTING - May 2004 

417.1: line 4 now reads . . . form to the requirements of Section 424.3. 

ASSE: reference number 1002-99 now reads . . . Performance Requirements for Antisiphon Fill 
Valves (Ballcocks) for Gravity Water Closet Flush Tanks 

ASSE: reference number 1004-90 now reads . . . Performance Requirements forBackflow 
Prevention Requirements forCommercial Dishwashing Machines 

ASSE: reference number 1006-89 now reads . . . Performance Requirements for Residential Use 
Dishwashers 

ASSE: reference number 1016-96 now reads . . . Performance Requirements for Individual 
Thermostatic, Pressure Balancing and Combination Control Valves for Individual Fixture Fittings 

ASSE: reference number 1019-97 now reads . . . Performance Requirements for Vacuum 
Breaker Wall Hydrants, Freeze Resistant, Automatic Draining Type 

ASSE: reference number 1066-97 now reads . . . Performance Requirements for Individual 
Pressure Balancing In-Line Valves for Individual Fixture Fittings 

ASSE: reference number 5013-98 now reads . . . Performance Requirements forTesting 
Reduced Pressure Principle Backflow Prevention Assembly (RPA) and Reduced Pressure Fire 
Protection Principle Backflow Preventers (RFP) 

ASSE: reference number 5015-98 now reads . . . Performance Requirements forTesting Double 
Check Valve Backflow Prevention Assembly (DCVA) 

ASSE: reference number 5048-98 now reads . . . Performance Requirements forTesting Double 
Check Valve Detector Assembly (DCDA) 



SECOND PRIISTTING - March 2004 

FLUSH TANK: line 1 now reads ... A tank designed witii a fill valve and flush . . . 

TABLE 702.1: row 7, column 2 now reads . . . ASTM F 1488, ASTM F 891. 

TABLE 702.1: row 14, column 2 now reads . . . ASTM D 2665; ASTM D 2949; CSA B 181.2; 
ASTM F 1488. 

TABLE 702.2: row 7, column 2 now reads . . . ASTM F 1488, ASTM F 891. 

TABLE 702.2: row 11, column 2 now reads . . . ASTM D 2665; ASTM D 2949; CSA B 181.2. 

TABLE 702.3: row 1, column 1 now reads . . . ASTM D 2661; ASTM D 2751; ASTM F 628 

TABLE 702.3: row 2, column 1 now reads . . . Asbestos-cement pipe 

TABLE 702.3: row 7, column 2 now reads . . . ASTM F 1488, ASTM F 891. 

TABLE 702.3: inserted new row 11 which now reads . . . Coextruded PVC sewer and drain PS 
25, PS 50, PS 100 (cellular core) ASTM F 891. 

TABLE 702.3 row 15, column 2 now reads . . . ASTM D 2665; ASTM D 2949; ASTM D 3034; 
CSAB182.2;CAN/CSA B182.4. 

1101.5: Title now reads . . . Change in size. 

ASSE: Standard Reference Number 1055 now reads . . . 1055—97 Performance Requirements 
for Chemical Dispensing Systems 

TABLE E201.1— continued: row 2, column 8 now reads ... 5. 

FIRST PRINTING - May 2003 

425.5 line 1 now reads . . . 425.4 

504^6.2: line 2 now reads . . . those materials listed in Section 605.4 or shall be tested, rated ... 

606.13.3 line 4 now reads . . . CAN/CSA-B64.3. 

ASTM: Standard reference number now reads . . . D 2665—01 

NSF: Standard reference number now reads . . . 1996a