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CSA B79-08 (R2018) Commercial and residential drains and cleanouts
standard by CSA Group, 11/01/2008
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Standards Update Service
B79-08
November 2008
Title: Commercial and residential drains and cleanouts
Pagination: 32 pages (vii preliminary and 25 text), each dated November 2008
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CSA Standard
B79-08
Published in November 2008 by Canadian Standards Association A not-for-profit private sector organization
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ISBN 978-1-55436-755-9
Technical Editor: Abraham I. Murra
© Canadian Standards Association — 2008
All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.
© Canadian Standards Association Commercial and residential drains and cleanouts
Technical Committee on Drains and Interceptors v
Preface vii
Scope 1
Reference publications 2
Definitions 4
Materials 4
General 4
Cast iron 5
Ductile iron 5
Bronze 5
Nickel bronze 5
Aluminum 5
Plastics 5
Stainless steel 6
Elastomers 6
Adhesives 6
Finishes 6
General 6
Non-organic finishes 6
Organic finishes 6
Plastic siphonic roof drains 6
Design requirements 6
Connections 6
Outlet locations 6
Connection types 7
Solvent-cemented outlet connections 7
O-ring or gasketed joints 7
Cross-sectional area 7
Fasteners 7
Grates and cleanout covers 7
Hinged grates 8
Shower drain grates 8
Backwater valves integral to drains 8
Sealing elements 8
Protrusions 8
Operation 8
Watertightness 9
Drain integral traps 9
Leakage 9
Seepage openings 9
Plastic siphonic roof drains 9
Test methods and performance requirements 10
Loading test for grates, cleanout covers, and top rims 10
Load classifications 10
November 2008 iii
B79-08 © Canadian Standards Association
Test equipment 10
Test method 10
Pass/fail criteria 10
Calculation of maximum safe live load 10
Watertightness test for backwater valves 11
Set-up 11
Test method 11
Pass/fail criteria 11
Sealing test for cleanout covers 11
Test method 11
Pass/fail criteria 12
Joint seal test 12
Test method 12
Pass/fail criteria 12
Corrosion test 12
General 12
Test method 12
Pass/fail criteria 12
Prefabricated vertical geocomposite drains 12
Markings 12
Residential drains 12
Commercial drains 13
Elastomeric components 13
Annexes
A (informative) — Prefabricated vertical geocomposite drains and plastic siphonic roof drains 25
Tables
— Threaded connections 14
— Inside caulk connections 15
— Hub (outside caulk) connections 16
— Spigot (mechanical hub or no hub) connections 17
Figures
— Drain nomenclature 18
— Bottom outlets 20
— Side outlets 21
— Angled side or bottom outlet 22
— Set-up for watertightness test for backwater valves 23
— Canted backwater valve 24
iv November 2008
© Canadian Standards Association Commercial and residential drains and cleanouts
R. Guinn Canplas Industries Ltd., Barrie, Ontario
Chair
P. Paré Watts Industries (Canada) Inc., Burlington, Ontario
Vice-Chair
Ackroyd Rand Technical Consulting, LLC, Rye, New Hampshire, USA
Representing the Plumbing and Drainage Institute
Aridi NSF International,
Ann Arbor, Michigan, USA
Associate
P. Ashton Masco Canada Limited, Mississauga, Ontario
C. Buehler Organic Resource Management,
Woodbridge, Ontario
C. Caruana CSA International, Toronto, Ontario
Associate
T.D. Ellison Canadian Water and Wastewater Association,
Ottawa, Ontario
Associate
G. Emberson Contour Industries Inc., Toronto, Ontario
E.J. Forty HR Wallingford Ltd., Oxon, United Kingdom
Associate
M. Gordon Region of Waterloo, Cambridge, Ontario
G. Hale Town of Markham, Markham, Ontario
G.W. Harrison Wayne Harrison Consulting,
Edmond, Oklahoma, USA
K.S. Hui Ontario Ministry of Municipal Affairs and Housing, Toronto, Ontario
Associate
E.C. Jowett Waterloo Biofilter Systems Inc., Rockwood, Ontario
B. Lagueux Saint-Nicolas, Québec
Consumer representative
November 2008 v
B79-08 © Canadian Standards Association
C.M. Matthews City of Toronto, Toronto, Ontario
D. Millar City of Hamilton, Hamilton, Ontario
M. Mullen City of Brantford, Brantford, Ontario
D. Oliveira Town of Markham, Markham, Ontario
Associate
P. Power City of Calgary, Calgary, Alberta
W. Smith Jay R. Smith Mfg. Co., Montgomery, Alabama, USA
Associate
M. Snyder Specca Services, Barrie, Ontario
C. Tevis Lowe Engineering/Highland Tank, Marlton, New Jersey, USA
Associate
P. Tov Green Turtle Technologies Ltd., Mississauga, Ontario
Associate
J. Walker Green Turtle Technologies Ltd., Mississauga, Ontario
M. Weiss Weiss Research, Polson, Montana, USA
Representing Jay R. Smith Mfg. Co.
W.C. Whitehead Whitehead Consulting Services,
Danvers, Massachusetts, USA
Associate
A.I. Murra Canadian Standards Association, Mississauga, Ontario
Project Manager
vi November 2008
© Canadian Standards Association Commercial and residential drains and cleanouts
This is the fourth edition of CSA B79, Commercial and residential drains and cleanouts. It supersedes the previous editions, published in 2005 under the title Floor drains, area drains, shower drains, and cleanouts in residential construction, and in 1994 and 1979.
This edition includes new requirements for
floor and trench drains for commercial use;
roof, deck, and balcony drains for commercial use;
siphonic roof drains for commercial use;
vacuum and storm drains for commercial use; and
cleanouts for commercial use.
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.
This Standard was prepared by the Technical Committee on Drains and Interceptors, under the jurisdiction of the Strategic Steering Committee on Water Management Products, Materials, and Systems, and has been formally approved by the Technical Committee. It will be submitted to the Standards Council of Canada for approval as a National Standard of Canada.
November 2008
Notes:
Use of the singular does not exclude the plural (and vice versa) when the sense allows.
Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.
This publication was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this publication.
CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee.
All enquiries regarding this Standard, including requests for interpretation, should be addressed to Canadian Standards Association, 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6.
Requests for interpretation should
define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;
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be phrased where possible to permit a specific “yes” or “no” answer.
Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSA’s periodical Info Update, which is available on the CSA Web site at www.csa.ca.
November 2008 vii
© Canadian Standards Association Commercial and residential drains and cleanouts
B79-08
1 Scope
1.1
This Standard specifies requirements for commercial and residential
area drains;
balcony drains;
deck drains;
floor drains;
roof drains;
shower drains;
trench drains; and
cleanouts.
1.2
This Standard covers the following subjects:
materials;
design requirements for
connections;
fasteners;
grates;
cleanout covers;
backwater valves; and
integral traps;
tests for
loading;
backwater valve tightness;
sealing; and
corrosion; and
markings.
1.3
The figures included in this Standard are intended only to portray typical drain types and are not intended to restrict design or to be used for specification purposes.
1.4
In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
November 2008 1