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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Repealed 29-252-1 c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

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

(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

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.

(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:

(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

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

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.

Standard

Referenced

reference

in code

number

Title

section number

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INTERNATIONAL
CODE COUNCIL®

kJ ^M^JJ^^

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)

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

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®

TOMDOM

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.

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

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®

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®

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-

§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®

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.

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®

IS 2003 SMTERNAT50NAL PLUMBING CODE®

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®

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.

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

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

10"

Aluminum tubing

Brass pipe

Cast-iron pipe

Copper or copper-alloy pipe

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

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

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)

CPVC pipe or tubing, I inch
or smaller

10"

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

10''

Steel pipe

Lead pipe

Continuous

PB pipe or tubing

2.67
(32 inches)

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

2.67
(32 inches)

PVC pipe

10"

Stainless steel drainage systems

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.

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.

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.

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

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 75

—

I per 500

I service sink

Restaurants, banquet
halls and food courts

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 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®

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

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

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

Educational

Educational facilities

I per 50

1 per 50

—

1 per 100

1 service sink

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

(see Section
411)

1 per 400

1 service sink

Institutional

I-l

Residential care

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 15

1 per 100

1 service sink

1-3

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

1 per 15

1 per 100

1 service sink

1-4

Adult daycare and
childcare*'

1 per 15

1 per 15"

1 per 100

1 service sink

(continued)

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

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

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

1 per 500

1 per 750

—

1 per 1,000

1 service
sink

Residential

R-I

Hotels, motels,
boarding houses
(transient)

1 per guestroom

1 per
guestroom

—

1 service
sink

R-2

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

1 per 10

IperS

1 per 100

1 service
sink

R-2

Apartment house

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 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 8

1 per 100

1 service
sink

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

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®

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.

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

( TUB

30 IN. 30 IN.

\ ^

^COMPARTMENT
—.4-15 IN.

2t IW. -|
CLEARANCE 4 —

UR UR Q Q

( TUB

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.

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

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.

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.

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®

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

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®

WMEO SUPPLY mn DiSTRtBUTlOW

iCTD

miEB

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

Bidet

Combination fixture

Dishwasher, residential

2.75

Drinking fountain

0.75

Laundry tray

Lavatory

Shower

Shower, temperature controlled

Sillcock, hose bibb

Sink, residential

2.5

Sink, service

Urinal, valve

Water closet, blow out,
flushometer valve

Water closet, flushometer tank

1.6

Water closet, siphonic,
flushometer valve

Water closet, tank, close
coupled

Water closet, tank, one piece

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")

Bidet

v«

Combination sink and tray

Dishwasher, domestic*

'/,

Drinking fountain

Hose bibbs

'/2

Kitchen sink'

'/,

Laundry, 1, 2 or 3
compartments'

Lavatory

Shower, single head'

'/2

Sinks, flushing rim

Sinks, service

'/,

Urinal, flush tank

Urinal, flush valve

Wall hydrant

Water closet, flush tank

Water closet, flush valve

Water closet, flushometer tank

v«

Water closet, one piece'

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

IV.

IV,

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®

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.

»§o 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®

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®

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

50- 150

150-200

200 - 400

400 - 700

700- 1,000

Over 1 ,000

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.

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

751 to 1,500

Vl^

1,501 to 3,000

3,001 to 5,000

2'h

5,000 to 7,500

Over 7,500

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.

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®

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

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.

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

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

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)

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 ■;

SOURCE OF COWTAMINMIOW

DISTAMCE (feet)

Barnyard

100

Farm silo

Pasture

100

Pumphouse floor drain of cast iron draining
to ground surface

Seepage pits

Septic tank

Sewer

Subsurface disposal fields

Subsurface pits

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

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

3 to 6

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

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.

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.

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

4V,

1 pound

4V,

1 pound 12 ounces

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

14 ounces

2'/,

1 pound 6 ounces

2 pounds

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

Eighth bend

Sixth bend

Quarter bend

x»

Short sweep

x*"

Long sweep

Sanitary tee

—

Wye

Combination wye
and eighth bend

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

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®

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^

Automatic clothes washers, residential^

Bathroom group as defined in Section 202 (1 .6 gpf water closet/

—

Bathroom group as defined in Section 202 (water closet flushing
greater than 1 .6 gpf)^

—

Bathtub*" (with or without overhead shower or whirpool
attachments)

l'/2

Bidet

IV,

Combination sink and tray

IV,

Dental lavatory

Dental unit or cuspidor

Dishwashing machine," domestic

iv,

Drinking fountain

r/4

Emergency floor drain

Floor drains

Kitchen sink, domestic

IV,

Kitchen sink, domestic with food waste grinder and/or dishwasher

IV,

Laundry tray (1 or 2 compartments)

IV,

Lavatory

r/4

Shower

IV,

Sink

IV,

Urinal

Noted

Urinal, 1 gallon per flush or less

Noted

Wash sink (circular or multiple) each set of faucets

IV,

Water closet, flushometer tank, public or private

Noted

Water closet, private (1.6 gpf)

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)

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.

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.

iv,

2V,

For SI: 1 inch = 25.4 mm.

DRAflMAC

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.

—

2'/2

—

180

216

250

—

390

480

575

—

700

840

1,000

1,400

1,600

1,920

2,300

2,500

2,900

3,500

4,200

3,900

4,600

5,600

6,700

7,000

8,300

10,000

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)

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,

2V,

160

240

500

360

200

540

1,100

620

350

960

1,900

1,400

600

2,200

3,600

2,500

1,000

3,800

5,600

2,900

1,500

6,000

8,400

7,000

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)

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"

and

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

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

ft,"

■jVa"

iv/

3 or

2 or

—

IV."

2 and

—

6 or

3 or

2 or

3 and

—

2 and

1 and

—

1 and

—

15 or

7 or

5 or

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[

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®

VENTI

shall be protected to prevent biids or rodents
blocking the vent opening.

entering or

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

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.

MBftflyftfl DBSmWCE OF FOCTOR
TRAP FROM ¥EWT

SIZE OF

FilCTURE

DRMW

(omieh©®)

SLOPE
(oinieh p)®ir

DlSmMCE
FROM TRAP

IV,

IV.

3V,

I 'A

IV,

v«

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,

2V2 to 3

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)

2'A

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,

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.

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

160

250

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

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)

■aVa

150

—

IV,

100

200

150

—

100

300

150

360

1.040

—

110

270

810

—

230

680

102

210

620

—

250

980

—

140

200

750

320

170

640

540

—

150

580

—

190

320

990

490

250

760

940

—

210

670

—

1,400

190

590

500

130

400

1,000

1,100

—

100

310

780

—

2,000

260

660

2.900

240

600

1,800

—

240

940

—

3,400

...

190

720

(continued)

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)

5,600

160

610

7,600

—

140

560

—

4,000

310

960

7,200

240

740

11,000

—

200

630

—

15,000

180

570

7,300

120

380

940

13,000

—

300

720

20,000

250

610

26,000

230

500

15,000

—

130

310

25,000

240

38,000

200

50,000

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.

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,

No limit''

No limit

270

No limit

160

No limit

270

No limit

150

380

No limit

100

10^

250

No limit

150

Not permitted

10=

110

370

No limit

200

Not permitted

210

No limit

250

Not permitted

132

No limit

300

Not permitted

10'

380

400

Not permitted

lO'^

210

500

Not permitted

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®

Q^, = Total vent stack airflow rate (cftn).

a(gpm)= 27.8 r, ^3(1.^^^8/3

a(cftn) = 0.134 a (gpm)

where:

r .

~ Drainage stack diameter (inches).

= Design discharge load (gpm).

= Waste water flow area to total area.

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

1©

100

—

100

l'/4

—

100

—

100

—

100

For SI: 1 inch = 25.4 mm, 1 cubic foot per minute = 0.4719 L/s, 1 foot = 304.8 mm.

»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®

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)

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.

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®

1 Jl c^

K^U

o
o

^5^^^

re /I

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)

2,880

1,440

960

720

575

480

410

360

320

290

260

240

8,800

4,400

2,930

2,200

1,760

1,470

1,260

1,100

980

880

800

730

18,400

9,200

6,130

4,600

3,680

3,070

2,630

2,300

2,045

1,840

1,675

1,530

34,600

17,300

11,530

8,650

6,920

5,765

4,945

4,325

3,845

3,460

3,145

2,880

54,000

27,000

17,995

13,500

10,800

9,000

7,715

6,750

6,000

5,400

4,910

4,500

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)

Vg unit vertical in 12 units horizontal (1-percent slope)

3,288

1,644

1,096

822

657

548

7,520

3,760

2,506

1,800

1,504

1,253

13,360

6,680

4,453

3,340

2,672

2,227

21,400

10,700

7,133

5,350

4,280

3,566

46,000

23,000

15,330

11,500

9,200

7,600

82,800

41,400

27,600

20,700

16,580

13,800

133,200

66,600

44,400

33,300

26,650

22,200

218,000

109,000

72,800

59,500

47,600

39,650

% unit vertical in 12 units horizontal (2 -percent slope)

4,640

2,320

1,546

1,160

928

773

10,600

5,300

3,533

2,650

2,120

1,766

18,880

9,440

6,293

4,720

3,776

3,146

30,200

15,100

10,066

7,550

6,040

5,033

65,200

32,600

21,733

16,300

13,040

10,866

116,800

58,400

38,950

29,200

23,350

19,450

188,000

94,000

62,600

47,000

37,600

31,350

336,000

168,000

112,000

84,000

67,250

56,000

Vi unit vertical in 12 units horizontal (4-percent slope)

6,576

3,288

2,295

1,644

1,310

1,096

15,040

7,520

5,010

3,760

3,010

2,500

26,720

13,360

8,900

6,680

5,320

4,450

42,8(M)

21,400

13,700

10,700

8,580

7,140

92,000

46,000

30,650

23,000

18,400

15,320

171,600

85,800

55,200

41,400

33,150

27,600

266,400

133,200

88,800

66,600

53,200

44,400

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}

'/i6 unit vertical in 12 units horizontal (0.5-percent slope)

680

340

226

170

136

113

1,440

720

480

360

288

240

2,500

1,250

834

625

500

416

3,840

1,920

1,280

960

768

640

5,520

2,760

1,840

1,380

1,100

918

7,960

3,980

2,655

1,990

1,590

1,325

14,400

7,200

4,800

3,600

2,880

2,400

Vg unit vertical 12 units horizontal (1-percent slope)

960

480

320

240

192

160

2,040

1,020

681

510

408

340

3,520

1,760

1,172

880

704

587

5,440

2,720

1,815

1,360

1,085

905

7,800

3,900

2,600

1,950

1,560

1,300

11,200

5,600

3,740

2,800

2,240

1,870

20,400

10,200

6,800

5,100

4,080

3,400

% unit vertical in 12 units horizontal (2-percent slope)

1,360

680

454

340

272

226

2,880

1,440

960

720

576

480

5,000

2,500

1,668

1,250

1,000

834

7,680

3,840

2,560

1,920

1,536

1,280

11,040

5,520

3,860

2,760

2,205

1,840

15,920

7,960

5,310

3,980

3,180

2,655

28,800

14,400

9,600

7,200

5,750

4,800

Vz unit vertical in 12 units horizontal (4-percent)

1,920

960

640

480

384

320

4,080

2,040

1,360

1,020

816

680

7,080

3,540

2,360

1,770

1,415

1,180

11,080

5,540

3,695

2,770

2,220

1,850

15,600

7,800

5,200

3,900

3,120

2,600

22,400

11,200

7,460

5,600

4,480

3,730

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

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®

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

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

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

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

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*=

Birmingham

2,551

33°30'

Huntsville

3,070

34°40'

Mobile

1,560

30°40'

Montgomery

2,291

32°20'

Anchorage

10,864

-18

6ri0'

Fairbanks

14,279

-47

64°50'

Juneau

9,075

58°20'

Nome

14,171

-27

64°30'

Flagstaff

7,152

35°10'

Phoenix

1,765

107

33°30'

Tuscon

1,800

102

33°10'

Yuma

974

109

32°40'

Fort Smith

3,292

35°20'

Little Rock

3,219

34°40'

Texarkana

2,533

33°30'

Fresno

2,611

100

36°50'

Long Beach

1,803

33°50'

Los Angeles

2,061

34°00'

Los Angeles

1,349

34°00'

Oakland

2,870

37°40'

Sacramento

2,502

38°30'

San Diego

1,458

32°40'

San Francisco

3,015

37°40'

San Francisco

3,001

37°50'

Alamosa

8,529

-16

37°30'

Colorado Springs

6,423

38°50'

Denver

6,283

39°50'

Grand Junction

5,641

39°10'

Pueblo

5,462

38°20'

Bridgeport

5,617

41°10'

Hartford

6,235

41°50'

New Haven

5,897

4r20'

Wilmington

4,930

39°40'

Washington

4,224

38°50'

Daytona

879

29°10'

Fort Myers

442

26°40'

Jacksonville

1,239

30°30'

Key West

108

24°30'

Miami

214

25°50'

Orlando

766

28°30'

Pensacola

1,463

30°30'

Tallahassee

1,485

30°20'

Tampa

683

28°00'

West Palm Beach

253

26°40'

Athens

2,929

34°00'

Atlanta

2,961

33°40'

Augusta

2,397

33°20'

Columbus

2.383

32°30'

Macon

2,136

32°40'

Rome

3,326

34°20'

Savannah

1,819

32°10'

Hilo

19°40'

Honolulu

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''

Boise

5,809

43°30'

Lewiston

5,542

46°20'

Pocatello

7,033

-1

43°00'

Chicago (Midway)

6,155

41°50'

Chicago (0' Hare)

6,639

-4

42°00'

Chicago

5,882

4P50'

Molina

6,408

-4

41°30'

Peoria

6,025

-4

40°40'

Rockford

6,830

-4

42°10'

Springfield

5,429

39°50'

Evansville

4,435

38°00'

Fort Wayne

6,205

41°00'

Indianapolis

5,699

39^40'

South Bend

6,439

41°40'

Burlington

6,114

-3

40°50'

Des Moines

6,588

-5

41°30'

Dubuque

7,376

-7

42°20'

Sioux City

6,951

-7

42°20'

Waterloo

7,320

-10

42''30'

Dodge City

4,986

37°50'

Goodland

6,141

39°20'

Topeka

5,182

39°00'

Wichita

4,620

37°40'

Covington

5,265

39°00'

Lexington

4,683

38°00'

Louisville

4,660

38°10'

Alexandria

1,921

31°20'

Baton Rouge

1,560

30°30'

Lake Charles

1,459

30°10'

New Orieans

1,385

30°00'

Shreveport

2,184

32°30'

Caribou

9,767

-13

46°50'

Portland

7,511

-1

43°40'

Baltimore

4,654

39°10'

Baltimore

4,111

39°20'

Frederick

5,087

39'^20'

Boston

5,634

42°20'

Pittsfield

7,578

-3

42°30'

Worcester

6,969

42°20'

Alpena

8,506

-6

45°00'

Detroit (City)

6,232

42°20'

Escanaba

8,481

-7

45^40'

Flint

7,377

43°00'

Grand Rapids

6,894

42°50'

Lansing

6,909

42°50'

Marquette

8,393

-8

46°30'

Muskegon

6,696

43°10'

Sault Ste. Marie

9,048

-8

46^30'

Duluth

10,000

-16

46°50'

Minneapolis

8,382

-12

44°50'

Rochester

8,295

-12

44°00'

Jackson

2,239

32°20'

Meridian

2,289

32°20'

Vicksburg"*

2,041

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*=

Columbia

5,046

39°00'

Kansas City

4,711

srw

St. Joseph

5,484

39°50'

St. Louis

4,900

38°50'

St. Louis'*

4,484

38°40'

Springfield

4,900

37<'10'

Billings

7,049

-10

45°50'

Great Falls

7,750

-15

47°30'

Helena

8,129

-16

46°40'

Missoula

8,125

-6

46°50'

Grand Island
Lincoln

6,530

-3

41°00'

5,864

-2

40°50'

Norfolk

6,979

-4

42°00'

North Platte

6,684

-4

41°10'

Omaha

6,612

-3

41°20'

Scottsbluff

6,673

-3

41°50'

Elko

7,433

-2

40°50'

Ely

7,733

-4

39°10'

Las Vegas

2,709

106

36°10'

Reno

6,332

39°30'

Winnemucca

6,761

40°50'

Concord

7,383

-3

43°10'

Atlantic City

4,812

39°30'

Newark

4,589

40°40'

Trenton''

4,980

40°I0'

Albuquerque

4,348

35°00'

Raton

6,228

36°50'

Roswell

3,793

33°20'

Silver City

3,705

32°40'

Albany

6,875

-1

42°50'

Albany**

6,201

42°50'

Binghamton

7,286

42° 10'

Buffalo

7,062

43°00'

NY (Cent. Park)**

4,871

40°50'

NY (Kennedy)

5,219

40°40'

NY (LaGuardia)

4,811

40°50'

Rochester

6,748

43°10'

Schenectady

6,650

42°50'

Syracuse

6,756

43°10'

Charlotte

3,181

35°10'

Greensboro

3,805

36°10'

Raleigh

3,393

35°50'

Winston-Salem

3,595

36°10'

Bismarck

8,851

-19

46°50'

Devils Lake**

9,901

-21

48°10'

Fargo

9,226

-18

46°50'

Williston

9,243

-21

48°10'

Akron-Canton
Cincinnati

6,037

41°00'

4,410

39°10'

Cleveland

6,351

41°20'

Columbus

5,660

40°00'

Dayton

5,622

39°50'

Mansfield

6,403

40°50'

Sandusky

5,796

41°30'

Toledo

6,494 1

41°40'

Youngstown

6,417 4

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'=

Oklahoma City

3,725

35°20'

Tulsa

3,860

36°10'

Eugene

4,726

44°10'

Medford

5,008

42°20'

Portland

4,635

45°40'

Portland**

4,109

45°30'

Salem

4,754

45°00'

Allentown

5,810

40°40'

Erie

6,451

42°10'

Harrisburg

5,251

40°10'

Philadelphia

5,144

39°50'

Pittsburgh

5,987

40°30'

Pittsburgh''
Reading

5,053

40°30'

4,945

40°20'

Scranton

6,254

41°20'

Williamsport

5,934

41°10'

Providence

5,954

41°40'

Charleston

2,033

32°50'

Charleston

1,794

32°50'

Columbia

2,484

3 '°00'

Huron

8,223

-14

44°30'

Rapid City

7,345

-7

44°00'

Sioux Falls

7,839

-11

43°40'

Bristol

4,143

36°30'

Chattanooga

3,254

35°00'

Knoxville

3,494

35°50'

Memphis

3,232

35°00'

Nashville

3,578

36°10'

Abilene

2,624

32°30'

Austin

1,711

30°20'

Dallas

2,363

100

32°50'

El Paso

2,700

31=50'

Houston

1,396

29°40'

Midland

2,591

32°00'

San Angelo

2,255

31°20'

San Antonio

1,546

29°30'

Waco

2,030

31°40'

Wichita Falls

2,832

101

34°00'

Salt Lake City

6,052

40°50'

Burlington

8,269

-7

44°30'

Lynchburg

4,166

37°20'

Norfolk

3,421

36°50'

Richmond

3,865

37°30'

Roanoke

4,150

37°20'

Olympia

5,236

47°00'

Seattle-Tacoma

5,145

47°30'

Seattle**

4,424

47°40'

Spokane

6,655

47°40'

Charleston

4,476

38°20'

Elkins

5,675

84 72

38°50'

Huntington

4,446

91 77

38°20'

Parkersburg

4,754

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=%

Green Bay
La Crosse
Madison
Milwaukee

8,029
7,589
7,863
7,635

-7

44''30'
43^50'
43°10'
43°00'

Casper
Cheyenne
Lander
Sheridan

7,410
7,381
7,870
7,680

-1
■11

61
62
63

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.

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.

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

A-B

3-2V2" Gate valves

1-2'//' Side branch tee

I-2V2" Side branch tee

B-C

l-l'/i' Straight run tee

0.5

B-C

1-2" Straight run tee

1-2" 90-degree ell

0.5

C-F

1-2 'A" Side branch tee

C-F

l-l'A" Side branch tee

C-D

l-2V,"90-degreeell

C-D

l-'A" 90-degree ell

D-E

l-2'/2" Side branch tee

D-E

l-l'A" Side branch tee

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

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

O—
iVlAIN

HOTVWTER

COLD VWTER

M = METER

BFP= BACKFLOWPREVENTER

= 90 DEGREE ELBOW
M = VALVE

FLOOR 2

288fu, 108 gpm

132fu,
77 gpm

FLOOR 1

C -

2S4fu, te=

104.5 gpm

-MO—MOM-^

54 FT

M BFP

150 FT

13^u, 77 gpm

JT" ?

b-i

4-H

- B'

12fu. 28.6 gpm

132fu, 77 gpm

12ru, 28.6 gpm
24fu, 3S gpm

VWER HEATER

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

1.4

Bathtub

PubUc

Faucet

3.0

4.0

Bidet

Private

Faucet

1.5

2.0

Combination fixture

Private

Faucet

2.25

3.0

Dishwashing machine

Private

Automatic

—

1.4

Drinking fountain

Offices, etc.

■^/g" valve

0.25

—

0.25

Kitchen sink

Private

Faucet

1.0

1.4

Kitchen sink

Hotel, restaurant

Faucet

3.0

4.0

Laundry trays (1 to 3)

Private

Faucet

1.0

1.4

Lavatory

Private

Faucet

0.5

0.7

Lavatory

Public

Faucet

1.5

2.0

Service sink

Offices, etc.

Faucet

2.25

3.0

Shower head

Public

Mixing valve

3.0

4.0

Shower head

Private

Mixing valve

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

1.4

Washing machine (8 lb)

Public

Automatic

2.25

3.0

Washing machine (15 lb)

Public

Automatic

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 >

(Cubic fe@t! p@T minute)

(Water supply
fixture units)

(Gallons per minute)

(Cubic }eet per minute)

3.0

0.04104

—

5.0

0.0684

—

6.5

0.86892

—

8.0

1.06944

—

9.4

1.256592

15.0

2.0052

10.7

1.430376

17.4

2.326032

11.8

1.577424

19.8

2.646364

12.8

1.711104

22.2

2.967696

13.7

1.831416

24.6

3.288528

14.6

1.951728

27.0

3.60936

15.4

2.058672

27.8

3.716304

16.0

2.13888

28.6

3.823248

16.5

2.20572

29.4

3.930192

17.0

2.27256

30.2

4.037136

17.5

2.3394

31.0

4.14408

18.0

2.90624

31.8

4.241024

18.4

2.459712

32.6

4.357968

18.8

2.513184

33.4

4.464912

19.2

2.566656

34.2

4.571856

19.6

2.620128

35.0

4.6788

21.5

2.87412

38.0

5.07984

23.3

3.114744

42,0

5.61356

24.9

3.328632

44.0

5.88192

26.3

3.515784

46.0

6.14928

27.7

3.702936

48.0

6,41664

29.1

3.890088

50.0

6.684

32.0

4.27776

54.0

7.21872

35.0

4.6788

58.0

7.75344

38.0

5,07984

61.2

8.181216

41.0

5.48088

64.3

8.595624

100

43.5

5.81508

100

67.5

9.0234

120

48.0

6.41664

120

73.0

9.75864

140

52.5

7.0182

140

77.0

10.29336

160

57.0

7.61976

160

81.0

10.82808

180

61.0

8.15448

180

85.5

11.42964

200

65.0

8.6892

200

90.0

12.0312

225

70.0

9.3576

225

95.5

12.76644

250

75.0

10.026

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)

1.35

0.64

0.18

0.08

—

5.38

2.54

0.77

0.31

0.14

—

12.10

5.72

1.62

0.69

0.33

0.10

—

10.20

3.07

1.23

0.58

0.18

—

15.90

4.49

1.92

0.91

0.28

—

6.46

2.76

1.31

0.40

—

8.79

3.76

1.78

0.55

0.10

—

11.50

4.90

2.32

0.72

0.13

—

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.

27,

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

0.5

—

1.5

—

1.5

0.5

—

1.5

0.5

—

2.5

0.5

—

2.5

4.5

—

0.5

—

4.5

5.5

0.5

—

5.5

IV,

1.5

0.5

—

6.5

5.5

0.5

7.5

2'/,

2.5

0.5

—

11.5

3.5

—

1.5

15.5

14.5

3V,

3.5

—

12.5

—

18.5

1.5

—

11.5

23.5

—

3.5

13.5

26.5

—

12.5

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

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

100

UJJJL'i

PRESSURE DROP PER 1^ FEET OF TUBE. POUNDS PER SQUARE INCH

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

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©)

2(»

1(X)
eo

80
70
@0

40
20
20

Pl j-l ^ _

-+v±>mt:3^

_ -)_ ^^ |_| 4-1 -

n ]ij z — \-

ln^tli^

— \

j^^thb:

RflklRLY SWJOOTH

\n — "^

■X^\ya\rx

— 4^

f r-rrnx

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yTiwiTIT^

At t Pfi ti "

.J\dW:Jr ' ^

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"V^frn^

"^ 1 "4 1 V 1 1*

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^^^''tVt^^^^l"!'

--\^^^^^^

W" 1 IN' ^

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^iVrn™^

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\^n\0\

vi\L^iv

1 1 \>h1^V^

1 M^l 1 J>^

V^^^

^t iijp^^z:

3 ieJ\|4 _\_ z; \

^^^£^&=^

"^'''^^

_^^*^^w^^

z^^fji: iJq^^ n ^ ~" 6\P^

Y-^i^^i^i^^

rf^^Y

*^'^\^~,^\~^ "Sn ^"^^"^v ~

">^'*n\,'l>"l^

- "~^^^ ~\l 1"^^\ 3*^

~^^

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t^^"*"^ i\ ~f ""i^^ifTL'*^^"' ^

^^^

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^\^-i>i^

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=^^-j-\^f=^

^^\ 1 jMm 1 1 \ ^x'H^

jjfi m's V

1 J'''n\l 1 1

^''''''''^^^^^x^^V'^Xw^

^-T\riw^

r-r

^^"^^K

^nr^^^^y^

'XJ.^i^

^3^— |— ^^^H i^W^"" ~" ^5

^^\4-fW^

— •■\;

= ^rf^H-H j3

_ ir^j^rf^ ^j^^^hAu _^j,,=4a

+ 4V^i^

t-A

1"^^

^j^\^^^^'.

~^''\~^^\v^ n o^*^ "^

VMiVriTi

N:^

S^'

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rnrr

'''^'^ ^^5^ ~"'~ 5&'^''\ ~ 3=^

"a I 1 \i>{^

\i>^ 1

m 1 1 r

"x""^^ \~f "l^'iN n "^°i ~

tVtj^itX

^^\

7\ri

rYirr

~ ~jj^^^ 'L^'^^' ~

\ 1

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1 1 \ 1 i»^*r\l

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y^\^^^u\ ^

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y 1 1 i\mi \

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7000

5000
40C0

2000

1000

800

700

600

500

400

300

200

«.

100

-J

70
60

— 1

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

®)

50
40
30
20

^ f4 -V -4\

- + 4 + k'-^l-^ :\->^ -^ V: i>^^i:i

4H=:\4-

\4: 4 4: toi^Pf^ ~ 5.^w -wj

ROUGH

Vn — Vt ■

Y -t T riw^ \l.^^-r\- m-f

iVt \' '

- \T>mtT -.^" r T^ri-

vv^^^TT ri T^^~ \ ~:.,FT Til Ti •

\ ' '\' '"X

V -1 -|\i- W tiV^t^j;

l\ 1 1 \l \\^^^

^\\M\\\--^Y-\'r^<-

\L^I I 1 1 L)r ' \ ' M^^

\ ! \ i>mi\ X

>hTi\iiivAi j^ilhT

z^izq^fe4wS

^^.p^^^-K

Vj^^llt^

v- "Vi

".^^ "^ l^v n n

\~^¥

TT ^J^n^^'-^i jf^ i^fn

, ~iV^^"i\nTi

'y{\

~^^M^o~^^^^^

\-^fVt -M -^\^^- V>^

f\L>m^iA^ i^t>^"'"

.^"^ 1 \i

''^^i.Wyxl

\>^| ijA^ a"^"! j^V^ ' ' N

~\~i~>1

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V.^i\

U^f^\| ^,,<:.'*''']^

1 1 \^^^ j^

c^^^u^n \%>^i ' 1 1

= -.^f^

ta^^p} V,^^ :

^^5¥^ |x ^^A^^t: ZF x^^

;,2d\3^qLa^q-.^:

_W^. to>^3^ : i^nii-

.^^'~^:m^P^J^

^-t \r^n-" -Vt ^^^r r^

t>^ l^'^^^'^'^'W^..-'^'

T 5.^"iVr ^^\'^>^ X^TI T^ '

^''^ — \'!P'^ \ — \^\\^^r\^'\ — \~i "

=.-'^\"^ H^K^\^^ "^ n T>

1 1 jyn \l 1 V'*''^ ' \ 1 .««i till

^^,.=^ 1 1 >¥i 1 1 iX .^

^^\ iV^Vvi ^\'^!V^i 1

-^'^ -^ -H iWfl A>^

- W >^il+ A-M,.=^^'<i+ Hdil-

^^ -lA-l^-M^ ^'^-^ -

->^ ^im ^^-^- \- 4V H\l-

c¥^~i in^~ v^

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10(K)0

6000
KtOO
4CC0

3{X»]

2000

1000

soo

GtX)
7(X)
©30

500
400
300

200

100

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

100

ISO

200

2S0

300

400

500

'//

2.5

1.5

0.5

9.5

7.5

5.5

3.5

2.5

1.5

16.5

7.8

6.5

5.5

4.5

13.5

5.5

I-V4

10.5

l-'/4

i-V,

I-V4

17.5

1-V,

1-V:

l-V,

151

117

l-'A

151

128

i-V,

275

258

223

196

174

144

122

365

318

266

229

201

160

134

2-V,

533

495

448

409

353

311

METER

AND
SERVICE

PIPE
(Inches)

DISTRIBOTIOW

PIPE

(inches)

MAXIMUM DEVELOPMENT LENGTH (feet)

Pressure Range 40 to 43 psi

100

ISO

200

250

300

400

500

Vz-

2.5

1.5

0.5

9.5

8.5

5.5

4.5

3.5

2.5

13.5

10.5

7.5

11.5

9.5

7.5

6.5

I-V4

16.5

1-V4

i-V,

l-'/4

1-V:

l-V:

1-Vz

151

130

109

l-V:

151

139

115

1-V,

275

264

238

198

169

365

349

304

270

220

185

2-'/2

533

528

456

403

(continued)

APPENDIX E

SHETEHAMD
3iR¥l€E FIFE

DISTRlBimON PIPE

4®

1®®

1g®

209

2i©

30®

iOQ

v,«

1.5

0.5

^/.

9.5

8.5

6.5

4.5

2.5

18.5

14.5

9.5

16.5

^/.

1-V.

1-V,

1-V.

1-V,

151

139

120

1-V,

151

146

126

1-V,

275

247

213

365

329

272

232

2-V,

533

353

486

SERVICE PIPE
(Inches)

DISTmBUnOI^ PIPE
(Ineheti)

1®®

li0

iSO

306

400

soo

Va^

2.5

1.5

0.5

9.5

7.5

4.5

3.5

19.5

15.5

11.5

9.5

1-V.

I-V2

1-V.

1-V,

151

144

114

1-V,

151

118

1-V,

275

252

365

368

318

273

2-V,

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

=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

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

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

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

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

/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

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

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

^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

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

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

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

Excessive pressure 604.8

Hammer 604.9

WATER CLOSETS 420

Fixtures 604.4

Flowrates Tab8@604.4

WATERHEATE^S Chapter5

WET ymi 909

WIPED JOIMTS 705.13.2

WOe^iRS'TOSLETFACiLBTSES 311

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

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