National Building Code: a standard plumbing by-law

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A

STANDARD

PLUMBING

BY-LAW

CODES AND SPECIFICATIONS SECTIQN NATIONAL RESEARCH COUNCIL d

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The p r o j e c t f o r t h e p r e p a r a t i o n of a model b u i l d i n g code f o r u s e by Canadian m u n i c i p a l i - t i e s was undertaken same two y e a r s ago by a group of committees organized under t h e j o i n t s p o n s o r s h i p of t h e N a t i o n a l Research Council and t h e Department of Finance of Canada.

Z a r l y i n t h e c a u r s e of t h e i r work the c m - m i t t e e s recognized t h e need f o r c e r t a i n a n c i l l a r y documents b e a r i n g upon t h e housing f i e l d b u t n a t u s u a l l y c o n s i d e r e d t o be w i t h i n t h e scope 'of a b u i l d i n g code. On t h i s b a s i s a model zoning by-law, prepared by t h e C o r n i t t e e on H e a l t h and S a n i t a t i o n , was p u b l i s h e d some months ago, The p r e s e n t document i s a f u r t h e r c o n t r i b u t i o n from t h e same committee.

S i n c e t h e o u t b r e a k of w a r t h e a c t i v i t i e s of t h e committees have been c a r r i e d on under some- what d i f f i c u l t c o n d i t i o n s . Ta a s s u r e t h a t t h e work

t h a t h a s been done w i l l n o t b e l o s t it h a s been deemed a d v i s a b l e t o p u b l i s h s e p a r a t e l y t h e v a r i o u s dwuments a s t h e y become a v a i l a b l e , f o r such u s e a s m u n i c i p a l i t i e s might wish t o make of them.

I n p r e p a r i n g t h i s plumbing by-law t h e C o m i t t e e h a s t a k e n cognizance of by-laws now In f o r c e i n v a r i o u s c o r n u n i t i e s and,with the co-operation of t h e Advisory C o m i t t e e and numerous m u n i c i p a l o f f i c i a l s , h a s endeavoured t o b r i n g t h e v a r i o u s c l a u s e s i n t o harmony w i t h modern c o n d i t i o n s i n t h e plumbing f i e l d , The dooument a s i t s t a n d s r e p r e -

s e n t s t h e work of a t e c h n i c a l committee b u t l e g a l c o n s i d e r a t i o n s have n o t been d e a l t w i t h e x c e p t i n - s o f a r as t h e y b e a r on t e c h n i c a l m a t t e r s . I n some i n s t a n c e s where common p r a c t i c e i n t h i s c o u n t r y h a s been deemed t o r u n c a u n t e r t o nodern c a n c e p t i o n s of p u b l i c h e a l t h , t h e C o m i t t e e h a s s e t down what, i n i t s o p i n i o n , i s i n t h e b e s t p u b l i c i n t e r e s t , r e a - l i z i n g f u l l y t h a t some m u n i c i p a l i t i e s may w i s h t o modify s l i g h t l y c e r t a i n r e g u l a t i o n s t o more s a t i s - f a c t o r i l y meet l o c a l c o n d i t i o n s ,

The work of t h e f l a t i o n a l B u i l d i n g Code C o r n i t t e e s i s d i r e c t e d by a n A d m i n i s t r a t i v e Cormnit- t e e , t h e members of which a r e t h e f o l l o w i n g : iii Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

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A c t

a

ng Chairman,

National B i l d i n g Code Projeot.

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CONTENTS

@Y

LY c r e tary. Commit- tcre tary. -0 and 3 0 N a t i o n a l PART 1

-

GENERAL R B J , U I R m T S

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S e c t i o n 1.1 Scope of t h i s By-law .1

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S e c t i o n 1.2 D e f i n i t i o n s 1

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S e c t i o n 2 . 1 . L i c e n s i n g of Plumbers

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5 S e c t i o n 2.2 P e r m i t s

7 PART

j

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R ~ U I R E D P L ~ . ~ I W FACILITIES

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S e c t i o n 3.1 General

_...

8

S e c t i o n 3.2 F i x t u r e s Required 8

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S e c t i o n

3.3

Drinking Water 11

PART 4

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QUALITY AND DESIGN OF FIX"NRES,PIPING,

FITTIKGS, AND ACCESSORIES S e c t i o n 4.'1 S e c t i o n 4.2 S e c t i o n 4.3 S e c t i o n 4.4 S e c t i o n 4.5 S e c t i o n 3.1 S e c t i o n 5.2 S e c t i o n 5.3 S e c t i o n 5.4 S e c t i o n 5.5

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F i x t u r e s P i p e

...*...~.

...

F i t t i n g s

;...

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S h e e t M e t a l

Use of M a t e r i a l s Other Than Those

S p e c i f i e d

...e.~...

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G e n e r a l R e g u l a t i o n s

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J o i n t s and Connections

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Water D i s t r i b u t i o n Systems

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Plumbing F i x t u r e s

Drainage Systems and House Sewers PART

6 -

INSPSCTION AND TESTING

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S e c t i o n 6.1 Required I n s p e c t i o n s

37

S e c t i o n 6.2 R e g u l a t i o n s P e r t a i n i n g t o

...

I n s p e c t i o n s

37 ...

s e c t i o n 6.3 C e r t i f i c a t e of Approval

38

. s e c t i o n 6.4 T e s t s

...

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CONTENTS ( ~ o n t t d )

b€52

PART

7 -

PRIVATE SEWAGE DISPOSAL SYSTMS

S e c t i o n

7.1

G e n e r a l . . . ~ . . . e e . . e e e e e e % 3 9 S e c t i o n 7.2 L o c a t i o n

...e..~.

39 S e c t i o n 7.3 U t e r i a l s

.

.,

.. .

.

. .

.

. .

.

..

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39 S e c t i o n 7.4 C a p a c i t y . e e e e e e . e e e e e e . e e e e e e . e e

39

S e c t i o n

7.5

. Design

. . . e . . e e .

40 S e c t i o n 7.6 Dosing Chambers

...

40 S e c t i o n 7.7 Dosing S i p h o n s

.

,

. . . .

. . .

.

4 1 S e c t i o n 7.8 Storm Water

. . . e . . . b ,

4 1 S e c t i o n 7.9 Vent P i p e s . . . , e . . . e e . . . . 4 1 S e c t i o n 7.10 E f f l u e n t P i p e fromSewage Tank

..

4 1 S e c t i o n

7.11

C a p a c i t y of T i l e D i s p o s a l F i e l d

.

4 1 S e c t i o n 7.12 T i l e D i s p o s a l F i e l d i n Impervious . S o i l . . . e . . e . e 42 S e c t i o n 7.13 S i z e of Open- j o i n t T i l e and Method of Laying

.

. .

.

. .

.

42 S e c t i o n 7.14 Grade of T i l i n g ............e,e~, 42 S e c t i o n 7 - 1 5 L a t e r a l Branches of T i l i n g ,

.

,

. .

.

42 PART

8 -

PENALTIES

. . .

. .

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NATIONAL BUIL3IXG COD3

PART 1

-

G m m RBqUIRmAENTS

1.1 SCOPE OF THIS BY-LA\V.- A l l new b u i l d i n g s , a n d a l l e x i s t i n g b u i l d i n g s n o t a l r e a d y provided w i t h a plumbing system o r i n which a l t e r a t i o n s o r a d d i t i o n s a r e made t o any plumbing system, s h a l l be s u b j e c t t o t h e r e q u i r e m e n t s of t h i s By-law.

When any r e q u i r e m e n t of t h i s By-law i s a t

v a r i a n c e w i t h any o t h e r By-law of t h i s m u n i c i p a l i t y o r w i t h any p r o v i n c i a l enaotment a p p l y i n g t o t h i s m u n i c i p a l i t y , t h e more r e s t r i c t i v e r e g u l a t i o n s h a l l be f u l f i l l e d . Whenever d a t e d e d i t i o n s of c o d e s , s p e c i f i c a - t i o n s , o r o t h e r p u b l i c a t i o n s a r e c i t e d h e r e i n , sub- s e q u e n t e d i t i o n s may b e u s e d , s u b j e c t t o p e r m i s s i o n from t h e a u t h o r i t y h a v i n g j u r i s d i c t i o n . 1 . 2 1 For t h e p u r p o s e s of t h i s By-law, t h e d e f i - n i t i o n s g i v e n i n A r t i c l e s 1.2.2. t o 1.2.33, i n c l u - s i v e , s h a l l govern.

1.2.2 &roved, when a p p l i e d t o m a t e r i a l s , de- s i g n , o r workmanship, s h a l l man approved by t h e a u t h o r i t y h a v i n g j u r i s d i c t i o n . 1.2.3 A u t h o r i t y having j u r i s d i c t i o n . s h a l l mean t h e ~ l u m b i n g I n s p e c t o r , the H e a l t h O f f i c e r , o r o t h e r o f f i c i a l a u t h o r i z e d by m u n i c i p a l enactment t o ad- m i n i s t e r any r e g u l a t i o n c o n t a i n e d i n t h i s Ey-law. 1.2.4 Assembly b u i l d i n g s h a l l mean a b u i l d i n g i n which p e r s o n s c m g r e g a t e f o r c i v i c , p o l i t i c a l ,educa- - - t i o n a l , r e l i g i o u s , s o c i a l , o r r e c r e a t i o n a l purposes; i n c l u d i n g among o t h e r s , c o u r t h o u s e s , s c h o o l s , c o l - l e g e s , l i b r a r i e s , museums, e x h i b i t i o n b u i l d i n g s , l e c t u r e h a l l s , c h u r c h e s , assembly h a l l s , l o d g e rooms, dance h a l l s , t h e a t r e s , b a t h houses,armouries,arenas, gymnasiums, r e c r e a t i a n p i e r s , p a s s e n g e r s t a t i o n s . Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

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NATIONAL BUILDING CODE

1 . 2 . Business b u i l d i n q shall mean a b u i l d i n g occupied f o r t h e t r a n s a c t i o n of b u s i n e s s ; f o r t h e r e n d e r i n g of p r o f e s s i o n a l s e r v i o e s ; f o r t h e d i s p l a y ,

s a l e , o r s t o r a g e of goods, wares o r merchandise; f o r t h e s u p p l y i n g of food, d r i n k , o r o t h e r b o d i l y needs o r c 3 m f o r t s ; o r f o r t h e performance of work o r labour; i n c l u d i n g among o t h e r s , of r i c e b u i l d i n ,

?.

s t o r e s , markets, r e s t a u r a n t s , f a c t o r i s s, workshops, l a b o r a - t o r i e s . 1.2.6 I n s t i t u t i o n a l b u i l d i n q shall mean a b u i l d - i n g i n t o which persons a r e a d m i t t e d t o r e c e i v e c a r e o r - t r e a t m e n t , o r i n whic9 p e r s o n s a r e h e l d under r e s t r a i n t ; i n c l u d i n g among o t h e r s , h o s p i t a I s , asy- lums, s a n e t o r i a , p o l i c e s t a t i o n s , j a i i s ,

1.2.7 Residence b u i l d i n q s h a l l mean any b u i l d i n g except a n i n s t i t u t i o n a l b u i l d i n g i n which s l e e p i n g a c c o k o d a t i o n is providert ; i n c l u d i n g among o t h e r s -

one-family d w e l l i n ~ s , t w o - f a m i l y dwellings, m u l t i p l e dwellings, h o t e l s , l o d g i n g houses, d o r m i t o r i e s , can- v e n t s , s t u d i o s , club ~ C U S S S , f i r e s t a t i o n s .

1.2.8 Dead end s h a l l mean any p o r t i o n of a pipe t h a t i s more than t w o f e e t in developed l e t h and

does n o t t e r m i n a t e i n a f i t t i n g designed

%

admit

a i r c r l i q u i d s t o t h e p i p e *

1.2.9 House drain s h a l l mean t h a t p a r t of t h e lowest h o r i z o n t a l p i p i n g of a d r a i n a g e system which r e c e i v e s t h e d i s c h a r g e f r o m s o i l , waste,

or

o t h e r d r a i n a g e p i p e s and conveys i t t o a p o i n t n o t l e s s t h a n t h r e e f e e t beyond t h e w a l l of t h e b u i l d i n g t h e r e d i s c h a r g i n g it t o a house sewer.

1.2 .lo ' Sub-house d r a i n a h a l l mean t h a t p o r t i o n of any d r a i n a g e aystem whioh c a n n o t d r a i n by g r a v i t y i n t o t h e house sewer, a

1 . 2 1 1 Drainage system, w i t h r e f e r e n c e t o any b u i l d i n g , s h a l l man all p i p i n g t h a t oonveys rsewage,

rain-water, o r o t h e r l i q u i d waste t o a house sewer, t p g e t h e r w i t h all j o i n t s , f i t t i n g s , v e n t s , and v e n t p i p e s a p p u r t e n a n t t o such piping.

1.2.12 Dwelling u n i t a h a l l mean a room, o r s u i t e of two o r more rooms, i n which f a c i l i t i e s a r e provided f o r cooking o r f o r t h e i n s t a l l a t i o n o f c o o k i n g equipment, Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

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4 STANDARD PLUIIBING BY-LAW bui l d i n g f o r t h e e d i s p l a y , n d i s e ; f o r d i l y needs c o r labour; ?. s t o r e s , S, l a b o r a - n a b z i l d - c e i v e c a r e I d under tars, asy- y b u i l d i n g h s l e e p i n g og o t h e r s

,

m u l t i p l e ~ r i e s , csn- 8. of a p i p e th and 3% admit t of t h e stem which 'or o t h e r n o t l e sa m i l d i n g p o r t i o n of r g r a v i t y t o any rys sewage, ise

sewer,

, and v e n t , o r

bite

3 a r e proof cooking 1.2.13 H o r i z o n t a l , w i t h r e f e r e n c e t o any p i p e o r f i t t i n g , s h a l l mean t h a t it i s i n s t a l l e d w i t h i t s l o n g i t u d i n a l a x i s a t an angle of more t h a n 60 de- g r e s s w i t h t1.a v e r t i c a l .

1.2.14 Leader s h a l l mean any i;lpe, l o c a t e d i n o r o u t s i d e o f ~ l d i which conveys Btorm o r r a i n - ~ , water from any roof o r a r e a t o any sewer o r s t o r a g e c o n t a i n e r .

1.2.15 Developed l e n g t h , w i t h r e f e r e n c e t o any p i p e , s h a l l mean i t s l e n g t h a l o n g t h e c e n t r e l i n e of p i p e and f i t t i n g s .

1.2.16 Main, w i t h r e f e r e n c e t o any d r a i n a g e system, s h r m a n t h a t p a r t of such system which r e c e i v e s waste, v e n t s , o r back-vents, from f i x t u r e o u t l e t s o r t r a p s , d i r e c t l y o r through branch p i p e s .

Plumber

Master plumber s h a l l mean a person, f i r m o r c o r p o r a t i o n l i c e n s e d by t h i s m u n i c i p a l i t y t o engage i n plumbing, e i t h e r himself o r through hia employees.

Journeyman plumber s h a l l mean a person wha

is l i c e n s e d by t h i s m u n i c i p a l i t y t o engage i n plumb- i n g as an employee of a miaster plumber.

A r e n t i c e s h a l l mean a person wbo i s duly r e g i s t e r e

%?!r€m

e a u t h o r i t y having j u r i s d i c t i o n as one undergoing t r a i n i n g w i t h a viaw t o beooming a journeyman plumber.

1.2.18 Plumbin s h a l l mean t h e i n s t a l l a t i o n , a l - t e r a t i o n ,

*

o r r e p a r , i n o r appurtenant t o any build- i n g , of a plumbing system o r p a r t t h e r e o f .

1.2.19 plumbing f i x t u r e s h a l l mean a r e c e ~ t a c l s intended t o r e c e i v e water and t o discharge water o r o t h e r l i q u i d o r water-borne waste i n t o a d r a i n a g e system.

1.2.20 Plumbing system s h a l l mean, s e v e r a l l y and i n d i v i d u a l l y , t h e water d i s t r i b u t i o n s y s t e m ; a l l f i x - t u r e s and f i x t u r e t r a p s ; t h e d r a i n a g e system; t h e house sewer; any p r i v a t e sewage d i s p o s a l system; a l l l e a d e r s ; t o g e t h e r w i t h a l l t h e i r devices,appur- t e n a n c e s , and connections.

1.2.21

+

Se t i c t a n k s h a l l mean a s e t t l i n g t a n k c o n s t r u c t e d t o r e c e ve sewage from one o r more house

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NATIONAL

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A STANDARD PLUMBING BY-LAW sewage for re adequate obic bao- The d i p of any t r a p s h a l l mean t h e lowest p o r t i o n of t h e i n s i d e upper s u r f a o e . The tra s e a l s h a l l mean

*

e v e r t c a l system t h a t Lquid waste : t o

a

sew- d i s t a n c e between t h e crown w e i r and t h e d i p of a t r a y . o r oonanon

a s a n i t a r y 1.2.27 Crown vente s h a l l mean a vent pipe connec- t e d t o t h e crown of a t r a p ,

1.2.28 Vent i e s h a l l mean any p i p e provided t o v e n t i l a t e

*

a ra nage system and t o prevent t r a p si-

~ o u s e sewer

.ng f i x t u r e s

phonage and back p r e s s u r e ,

1.2.29 V e n t i l a t i n g p i p e s h a l l mean a pipe t h r o w which f o u l a i r i s removed f rorn a roo= o r f i x t u r e ,

1.2.30 V e r t i c a l , with ref'erence t o any pipe o r f i t t i n g . s h a l l mean t h a t it i s i n s t a l l e d w i t h i t s l o n g i t 6 d i n a l a x i s a t a n angle of not more t h a n 60

degrees w i t h t h e v e r t i c a l .

1.2.31 Waste i e s h a l l mean any p i p e t h a t conveys t h e d

e

s c arge of one o r more f i x t u r e s , o t h e r t h - a w a t e r - c l o s e t s , t o a s o i l pipe o r house d r a i n .

1.2.32 Water d i s t r i b u t i o n system s h a l l mean t h e piping, t o g e t h e r w i t h i t s m t i n g s and connections, t h a t conveys watar from t h e s e r v i c e pipe t o pl'mb- i n g f i x t u r e s o r o t h e r a p p a r a t u s o r devices.

tat cohveya

r

without _{a water-mah, o r p r i v a t e pumping system, t o t h e}1.2.33 Water s e r v i c e p i p e s h a l l mean a p i p e from

b u i l d i n g served.

e o r soil,

oontext

.

_PART₂

-

_{ADMINISTRATION}

e v i c e so

air

or g a s ally ai-

2 . l . 1 Required l i c e n s e s . - No person, f i r m , o r c o r p o r a t i o n s h a l l engage i n plumbing work u n l e s s duly l i c e n s e d by t h i s m u n i c i p a l i t y &s a Master Plumber o r Journeyman Plumber o r r e g i s t e r e d as a n a p p r e n t i c e ; p r o v i d e d , t h a t t i l e d r a i n s s h a l l be l a i d by a competent t i l e - d r a i n l a y e r . 9 3an the 3 8 . Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

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NATIONAL BUILDIRG CGDZ

2.1.2 Q u a l i f ic o t i o n s of b b s t e r Plumbers.- Every

Elaster Plum52r s h a l l be a l i c e n s e d Journeyman Plumb-

e r o r s h a l l havp i n h i s employ a s u f f i c i e n t number of l i c e n s e d J ~ u r n e y m a n Plumbers and a p p r e n t i c e s t o do a l l plumbing work which he may undertake,

2 U l i c a t i o n f o r V t s t e r Plumberqs License.-

m e r y a p p l i c a t i o n f o r a Master Plumber's l i o e n s e s h a l l be made i n w r i t i n g and s h a l l g i v e t h e name h d

business a d d r e s s of t h e a p p l i c a n t . I f t h e a p p l i c a n t i s a partnPursliip, t h e a p p l i c a t i o n s h a l l c a n t a i n t h e names and a d d r e s s e s of t h e v a r i o u s p a r t n e r s of t h e

r i m ;

i f t h o a p p l i c a n t i s a c ~ r p o r a t i o n , t h e names and a d d r e s s e s of t h e P r e ~ l d e n t , 9 e c ? - e t a r y . and T r e a s u r e r s h a l l be shown.

2 . 1 , 4 Qualifications of Journeyman Plumbers,- L i c e q s e s a s Jour~leyrnan Plumbers shall be g r a n t e d on-

l y t o p e r s o n s who have f u r n i s h e d s u f ~ i c i e n t evidence t h a t t h e y a r e c a ~ a b l e of p r o 3 e r l j performing ylumb-

i n g work, and ha-je passed s c h t e s t s a s t h e a u t h o r i t y having j u r i s d i c t i m may r e q u i r e

2.1.5 Q p l i c a t i o n f o r Journeyman Plumberqe Li- cense.

-

Every a ~ ~ l i c a t i o n f o r a Journevman Plumber t s

l i c e n s e s h a l i beamade i n w r i t i n g . Such a p p l i c a t i o n s h a l l c o n t a i n t h e a p p l i c a n t f s name, a d d r e s s , age,

and a s t a t e m e n t o f his e x p e r i e n c e and q u a l i f i c a - t i o n s ,

2.1.6 T r a n s f e r of Licenses.- L i c e n s e s s h a l l be p e r s a n a l and n o t t r a n s f e r a b l e and must be renewed each year d u r i n g t h e m a t h of January. Licenaea n o t renewed b e f o r e t h e f i r s t d a y of February s h a l l be renewable a s new l i c e n s e s only.

2.1.7 P o s t l n f ~ of Licenses.- U a s t e r Plumberts l i c e n s e s s h a l l be p o s t e d

in

a conspicuous p l a o e i n

t h e p l a c e of b u s i n e s s of t h e l i c e n s e e . -

2.1.8 R e s p o n s i b i l i t y of bGaster Plumbers.- Every blaster Plumber shall b e r e s p o n s i b l e for the workmanship of h i s employees. ~ e - s h a l l n o t a l l o w anyone except Journeyman Plumbers, and a p p r e n t i c e s under t h e i r s u p e r v i s i o n , t o do any plumbing work.

2.1.9 Revocation of Licenses.- V i o l a t i o n of any

of t h e r e q u i r e m e n t s of t h i s By-law s h a l l be c a u s e f o r r e v m a t i o n of any Elaster Plumberf s l i c e n s e ,

(15)

A

STANDARD

PLUMBING BY-LAW rs.- Every T p n Plumb- ent number r e n t i c e s t o ske

.

8 License.- s l i o e n s e the name and e a p p l i c a n t c a n t a i n t h e n e r s of t h e

,

t h e names t a r y , and umber s

.

-

granted on- e n t evidence ming ylumb- t h e a u t h o r i t y a p p l i c a t i o n d r e s s , age, u a l i f i c a - s s h a l l be be renewed ,icenaea n o t y s h a l l be 'lumber s .s plaoe i n

.

Every t h e work- .llow anyone ; i c e s under ~ r k . &ion of any .1 be cause .icense. 2.2 PERMITS

2.2.1 Required Permits.- No person s h a l l proceed t o uonatruct, a l t e r , o r add t o any plumbing system u n t i l a permit f o r t h e performance of such work has been obtained f r o m t h e a u t h o r i t y having j u r i s d i c t i o n , provided t h a t no p e n n i t s h a l l be r e q u i r e d f o r t h e c l e a r i n g of stoppages o r t h e r e p a i r i n g of l e a k s i n pipes, v a l v e s , o r f i x t u r e s , when such r e p a i r s do not involve o r r e q u i r e a l t e r a t i o n o r rearrangement of p i p s o r f i x t u r e s .

2.2.2 A p ~ l i o a t k m f o r Permits.- Every applica- t i o n f o r a plumbing permit s h a l l be made on t h e form provided and s h a l l be signed by t h e owner o r an

agent bearing h i s w r i t t e n a u t h o r i z a t i o n . Such ap- p l i c a t i o n s h a l l give t h e name of t h e master plumber by whom t h e work i s t o be done. It s h a l l be aacom- panied by: ( a ) information t h a t w i l l s e r v e t o give t h e ezaut l o o a t i o n of t h e b u i l d i n g concerned, i n - cluding t h e s t r e e t number and -block p l a n number;

( b ) a d e s c r i p t i o n of t h e proposed work, g i v i n g t h e number, s i z e , kind, and weight of all p i p e s , t r a p s , and f i t t i s t o g e t h e r w i t h a d e s o r i p t i o n of a l l

f i x t u r e s

;yc

f

When r e q u i r e d by t h e a u t h o r i t y having j u r i s d i c t i o n , a p l a n l e g i b l y drawn t o s c a l e , showing t h e proposed plumbing system and t h e l o c a t i o n of t h e b u i l d i n g w i t h r e f e r e n c e t o t h e s t r e e t sewer o r sewage d i s p o s a l system.

2.2.3 Changes t o P l a n s and Descriptions.- A f t e r

a plumbing permit has been i s s u e d , no departure s h a l l be made from t h e p l a n o r d e s c r i p t i o n submit- t e d with t h e a p p l i c a t i o n f o r such permit, without t h e w r i t t e n approval of t h e a u t h o r i t y having j u r i s - d i c t i o n .

2.2.4 Permit L i m i t a t i o n s

2.2.4.1 Tern of Permits.- A plumbing permit s h a l l be ranted o r refused w i t h i n f i v e days from t h e time of T i l i n g t h e a p p l i c a t i o n ; i f issued; i t s h a l l be v a l i d f o r s i x months only and must be renewed i f the work a u t h o r i z e d i s not begun w i t h i n t h a t period.

2.2.4.2 R e s p o n s i b i l i t y a f t e r Issuance of Permit.- Neither t h e g r a n t i n g of a permit, n o r t h e approval of p l a n s a n d - d e s c r i p t i o n s

,-

nor i n s p e c t i o n s made by

t h e a u t h o r i t y having j u r i s d i c t i o n , s h a l l i n any way r e l i e v e t h e Master Plumber from f u l l r e s p o n s i b i l i t y f o r c a r r y i n g o u t t h e work i n s t r i c t accordance with

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(17)

A STANDARD PLUMBING E3Y-LAW nsed Journey- plumbing blishment i n purpose, I n uirements of g of such 1 be i s s u e d sen paid: r i z i n g any ~g, a l t e r i n g , m e s o i l o r t u r e s , each addi- cture t o be 1 I T I E S

-

l t e r supply idin$, every kg, b u s i n e s s z new o r ex- ~g system water, and ~ g e t o apub- ma1 system, la1

.

is n o t avail- . a t o r y b u t I any b u i l d - . i t i o n s a r e , of t h i s ,ystem i s in- p r i v i e s , , d i s p o s a l lity having .imum r e - t i t u t i o n a l y b u i l d i n g e r - c l o s e t c e bu-ilding o r i n s t i t u t i o n a l b u i l d i n g s h a l l a l s o be provided with a t l e a s t m e bath-tub o r one shower-bath,

Additional f i x t u r e s s h a l l be provided, when necessary t o meet t h e requirements h e r e i n a f t e r pre- s c r i b e d ; provided t h a t :

( a ) Whenever more t h a n one w a t e r - c l o s e t , one lava- t o r y o r s i n k , o r one bath-tub o r shower-bath i s i n - s t a l l e d i n a s i n g l e room o t h e r than a p r i v a t e dwell- i n g u n i t , t h e u s e of such room s h a l l be r e s t r i c t e d t o one s e x o n l y ;

( b ) Whenever s e p a r a t e water-closet rooms o r bath- rooms a r e provided f o r each s e x s e p a r a t e l y , t h e y s h a l l be olosed by a f u l l - s i z e d door and s h a l l be c l e a r l y and p r o p e r l y marked ;

( c ) Whenever water-close* rooms a r e provided f o r t h e e x c l u s i v e use of males, u r i n a l s may be s u b s t i - t u t e d f o r one-half of t h e r e q u i r e d number of water- c l o s e t s .

3.2.2 Residence B u i l d i n g s and I n s t i t u t i o n a l Buildings

(a) Every dwelling u n i t i n a one-family, two- family, o r m u l t i p l e dwelling, s h a l l be provided with a t l e a s t one p r i v a t e w a t e r - c l o s e t , one p r i v a t e bath- t u b o r shower-bath, and one p r i v a t e l a v a t o r g a r sink.

( b ) Every r e s i d e n c e b u i l d i n g o r i n s t i t u t i o n a l b u i l d i n g s h a l l be provided with not l e s s t h a n one water-closet, one l a v a t o r y o r s i n k , and one bath- t u b o r shower-bath f o r every t e n bedrooms. When any bedroom i s provided with a p r i v a t e water-closet, l a v a t o r y o r s i n k , and bath-tub o r shower-bath, such room and such f i x t u r e s s h a l l not be considered i n t h e computa%ion of t h e r e q u i r e d number of f i x t u r e s .

Whenever bedroom accommodation i s t o be provided f o r both s e x e s and more than one water-closet, one l a v a t o r y o r s i n k , and one bath-tub o r shotver- b a t h is r e q u i r e d , such f a c i l i t i e s s h a l l be provided %n s e p a r a t e rooms f o r each sex.

Whenever s l e e p i n g accommodation i s t o be provided f o r more t h a n two persons i n one room

-

a s i n a dormitory

-

one w a t e r - c l o s e t , one l a v a t o r y o r s i n k , and one bath-tub o r shower-bath, f o r every 1 5 persons, s h a l l be i l l s t a l l e d on t h e b a s i s of the t o t a l Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

(18)

(19)

A STANDARD PLUMBING BY-LAW 1 such build- t o b e pro- i t r a n c e s

-

~ r - c l o s e t

,

lrovided

i n

js, i f such w i t h t h e l e s s b u i l d - 3 and l a v a - of em- i l d i n g i s :e w i t h t h e ly s e p a r a t e i i l s t o r e

-

f a c i l i t i e s , ;a1 number 1 occupancy 3xcess of N m b e r o f 3 s . o r Sinks 1 2

3

5 v a t o r y o r p e r s o n s occupancy c c ommodatiori b e provided e w i t h Table n excess of c l o s e t f o r e v e r y t w e n t y , and n o t l e s s t h a n one l a - v a t o r y o r s i n k f o r e v e r y f o r t y p e r s o n s o f such s e x f o r whose accomnodation s u c h b u i l d i n g is d e s i g n e d , i n t e n d e d , o r used. ( b ) I n e v e r y o t h e r assembly b u i l d i n g t h e r e s h a l l b e provided f o r each sex, n o t l e s s t h a n one w a t s r - c l o s e t f o r e v e r y one hundred and f i f t y p e r s m s , and

n o t l e s s t h a n one l a v a t o r y o r s i n k f o r e v e r y t h r e e hundred p e r s o n s , of such s e x f o r whose accaminodetior, such b u i l d i n g i s d e s i g e d , i n t e n d e d , o r u s s d . 3.2.5 Temporary F a c i l i t i e s . - S u i t a b l e t o i l e t f a - c i l i t i e s . s h a l l be p r o v i d e d f o r t h e u s e of workmen d u r i n g t h e c o n s t r i c t i o n of any b u i l d i n g . These t o i l e t f a c i l i t i e s s h a l l be -maintained I n r~ s a n i t a z y c o n d i t i o n . 3.3 IIRINKnTG WATER.- F a c i l i t i e s . t o p r o v i d e an a d e q u a t e s u p p l y of p o t a b l e w a t e r f o r d r i n k i n g p u r - poses s h a l l b e i n s t a l l e d i n r e a d i l y a c c e s s i b l e p l a c e s i n e v e r y b u s i n e s s , i n s t i t u t i o n a l , o r assembly b u i l d i n g . A l l such w a t e r s h a l l be from a n approved s o u r c e .

PART 4

-

QUALITY AND D 3 S I G N OF FIXTURES, PIPING; FITTINGS, AND ACCESSORIXS

4.1.1 M a t e r i a l s and Design 4 , l . l . l G e n e r a l , - A l l plumbing f i x t u r e s shall be of non-absorbent m a t e r i a l s , impermeable t o w a t e r , and s h a l l be f i n i s h e d w i t h - a smooth s u r f a c e f r e e from f l a w s o r b l e m i s h e s t h a t would s e r v e t o p r e v e n t ready c l e a n i n g . No s i n k , t u b , w a t e r - c l o s e t bow1,or o t h e r f i x t u r e s h a l l be encased i n wood o r o t h e r ab- s o r b e n t m a t e z i a l .

all water-closets and u r i n a l s s h a l l be 'of

v i t r i f i e d e a r t h e n w a r e , g l a z a d p o r c e l a i n , o r v i t r e - ous c h i n a ; o t h e r f i x t u r e s s h a l l be of t h e s e materials

o r of p o r c e l a i n - e n a m e l l e d c a s t i r o n , o r s t a i n l e s s a l l o y s , p r o v i d e d t h a t f o r s p e c i a l i n d u s t r i a l p u r - p o s e s o t h e r , m a t e r i a l s may b e used i f approved by t h e a u t h o r i t y h a v i n g j u r i s d i c t i o n . .g t h e r e s h a l l one w a t e r - Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

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UTIONAlL BUILDING

cola

Equipmsnt already i n s t a l l e d

in

o r removed from any building may be uaed only i f i t oonplles i n a l l r e s p e c t s with t h e requirements of t h i a Seo- tion.

4,1,1,2 Water-eloset8.- Water-oloaet bowls

and

t r a p s s h a l l be made

i n

one pieoe

and

of auoh form

a8 t o hold a s u i f i o i e n t quantity of water, when f i l l e d to t h e t r a p overfloos, t o prevent fouling o r aurfaoes,and s h a l l be provided w i t h i n t e g r a l flueh- ing rims so constructed

as

t o f l u s h t h e e n t i r e i n - t e r i o r of t h e bowl.

Eperg water-oloset and every urinirl s h a l l be flushed by means of

an

approved tank o r f lu$h valve, adjusted t o prevent waste of water, Eaeh water- c l o s e t s h a l l receive not l e s s than four gallona of water and each u r i n a l not l e s s than two gallona a t each flushing. The f l u s h pipe f o r any water-sloaet lahall not be l e s s than 1% inches i n diameter andthe

water from t h e flushing system s h a l l not be used f o r any o t h e r purpose.

Any aeat on a water-aloset t o *hioh t h e pub- l i c ha8 a c c e s e s h a l l be of t h e open-front type.

4.1.1.3 Winking Fountains.- Every drinkillg foun-

tain

s h a l l be' designed as

a

separate f i x t u r e and e h a l l be of such form t h a t it b y be cleaned

readily.

The water o r i f i o e s h a l l be of t h e shielded type end

s h a l l be above t h e extreme overflaw

level

of t h e

bowl. The o r i f i c e s h a l l d i r e a t t h e water stream a t

an angle of approximately

45

degree8 with t h e h o ~ l - aontal. M#mafor regulating t h e flow of water ahn'll

be provided.

4,1.1.4 Fixtum .Strainers

,-

A l l f i x t u r e s o t h e r than water-closets s h a l l be provided with substan- t i a l metal s t r a i n e r s having o u t l e t a r e a s not l e e 8 than t h a t of the i n t e r i o r of t h e t r a p and waste p l p . For the purpose of t h i s regulation,floor and rrhorsr-

bath d r a i n s s h a l l be oonsidered as f i x t u n a , 4,1.2 Prohibited Fixtures

4.1.2.1.- Prevention of Baok Si~ho~aue.-'Ho plumb-

ing f i x t u r e , device, o r constmotion s h a l l be

in-

s t a l l e d t h a t w i l l provide any cross aonnection be-

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r

removed

t ooaapllea f t h i s Seu- bowla

and

of suah t o m t e r ,

when

t fouling of egral i l u a h - e n t i r e

in-

m i 1 s h a l l be f l u a h valve, nuh water- g a l l o n s of g a l l o n s a t water-oloset neter andthe not be used I

tah the pub-

lt type. ?inking iovm- cture and mned

readily.

Led t y p e . and )re1 of t h e b r atream at ;h t h e h 0 ~ 1 -

r

water d m l l lrea o t h e r ;h substan- I n o t l e a s rd waste pipe. . r and shower- _. . 11288

.

8 -

'HO

plumb- 1 be

-

lection be-

tween a water d i s t r i b u t i o n system ami any p a r t of a drainage system ao a s t o make possible t h e baok- flow o r siphonage of any l i q u i d i n t o t h e water d i s - t r i b u t i o n system,

All water supply i n l e t s t o rixtures,including those provided with automatic valves, such a s

mflushomstersn, s h a l l be located a s u f f i c i e n t height above t h e maximum possible water-level i n t h e f i x t u r e t h a t t h e r e w i l l be no p o s s i b i l i t y of back-siphonage of any of t h e contents of t h e P i r - t u r e under any degree of vacuum i n t h e supply l i n e s , provided t h a t t h e a u t h o r i t y having j u r i s - d i c t i o n may permit t h e i n s t a l l a t i o n of f i x t u r e s

having a water i n l e t a t o r below t h e overflow l e v e l i f such f i x t u r e s a r e provided w i t h an approved vaouum-breaker on t h e supply l i n e s .

Pan and valve plunger, o f f s e t washout, and other water-closet s having i n v i s i b l e s e a l ~ ~ u n v e n t i - l a t e d space, o r w a l l s not thoroughly washed a t each f l u s h , s h a l l n o t be i n s t a l l e d .

4.1.2.2 F r o s t ProoP C1oaets.- F m s t proof closets s h a l l be i n s t a l l e d only when s p e c i f i c a l l y permitted by the a u t h o r i t y having j u r i s d i c t i o n . . The s o i l pipe between the hopper and t h e t r a p s h a l l not be 'more than s i x f e e t long, s h a l l be of a t l e a s t t h r e e inches i n i n t e r n a l diameter, and s h a l l be of lead o r of e a s t i r o n enamelled on t h e inside.

4.2 PIPE

4.2.1 General.- A l l piping used i n any plumbing

system s h a l l be f r e e from d e f e c t s and s h a l l comply with the requiremexts of A r t i c l e 4,2,2.

4.2.2 Q u a l i t y and Weight.- A l l pipe s h a l l conform t o t h e s p e c i f i c a t i o n s indicated i n Table 2

(22)

NATIONAL BUILDING CO DE

TABLE

2

S p e c i f i c e t f o n s Governing Q u a l i t y of Pipe Kind of P i p e

Clay sewer pipe...

...

Concrete sewer pipe.

Reinforced c o n c r e t e sewer p i p e

...

C a s t - i r o n p i p e (1).

...

V:rought-iron p i p e ( 2 )

...

S t e e l p i p e ( 3 ) .

...

Lead p i p e ( 4 ) . . S r a s s pipe..'... Copper pipe...

...

Copper tubing...

When both A.S. T.lL and C. E. S.A. s p e c i f i c a t i o n s a r e c i t e d , t h e y a r e a l t e r n a t i v e s ; m a t e r i a l s complying with

e i t h e r a r e a c c e p t a b l e .

(1) T h i s spec i f i c a t i o n s h a l l cover a l l c a s t - i r o n p i p e f o r u s e i n d r a i n a c e systems. The weight i n pounds s h a l l be marked on each u n i t . Dimensions and w e i z h t s s h a l l be 3.n accordance w i t h the ublication e n t i t l e d - h e r i c o n Standard Caat-Iron S o i

1

Pipe and F i t t i n g s , a s approved by t h e American S t a n d a r d s As-

s o c i a t i o n in October 1935 (-4. $.A. No. A40.1-1935) such w e i g h t s b e i n q known commercislly as ' e x t r a heavy'; rovided t h a t , i n b u i l d i n g s l e s s t h a n

3

s t o r e y s

!

n h e i g h t , i t s h a l l be p e r m i s s i b l e t o u s e

l*, 2

3,

and 4 i n c h p i e,having minimum w e i g h t s r e - s p e c t i v e l y of 17,20,3

8

,and

45

pounds p e r single-hub l e n z t h of r i v e f e e t , such wsishts b e i n g known com-

m e r c i a l l y as 'mediumt ,U1 c a s t - i r o n p i p e in c o n t a c t w i t h t h e ground s h a l l b e ' e x t r a heavyt arid coated. (2)V!rought-iron p i p e s h a l l be galvanized.

( 3) s t e e l p i p e s h a l l b e qalvanized.

(4)Lead p i p e u ~ e d above ground s h a l l b e ' s t r o n g ' o r h e a v i e r ; t h a t used below g r ~ i m d s h a l l b e ' e x t r a s t r o n g ' o r heavier.

4.3.1 General.- F i t t i n p s s h a l l comply w i t h the ape- c i f i o a t i o n s h e r e i n c i t e d f o r t h e corresponding p i p e when s p e c i f i c a l l y covered by such s p e c i f i c a t i o n ; w i s e t h e y s h a l l be of q u a l i t y e q u i v a l e n t t o t h a t of

t h e p i p e and of corresponding w e i g h t i n accordance

w i t h approved conmerciai p r a c t i c e .

4.3.2 P r o h i b i t e d F i t t i n g s . - No double hub o r double t e e s h a l l b e used on any s o i l o r waste l i n e . The

d r i l l i n g and t a p i n g of-house d r a i n s s o i l , w a s t e , o r v e n t p i p e s , and {he u s e of aaddle h u t s and bands a r e p r o h i b i t e d . (See a l s o A r t i c l e 5.2.12.) Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

(23)

A S T A N M R D PZ;UMBING BY-LAW of Pipe' cat con

-

B67-1940 B64-1940 B64- 1940 ~66-1940 ; i o n s a r e nplying w i t h s t - i r o n pipe g h t i n pounds s i o n s and ta publication Soi Pipe and Standards As- A40.1-1935) a s t e x t r a l e s s than 3 a i b l e t o use

rn

w e i ~ h t s re- per sbgle-hub ng known

corn-

ipe

in

contact and coated. * with .ths ape- ionding pipe i c a t i o n ; o t h + I t o t h a t of accordance hub or double h e . The d l , waste, or .nd bands a r e

4 . 3 3

Threaaed

Fittill~8.m P l a i n acrewed f i t t i n g s s h a l l be of

cast

Iron,

malleable i r o n , b r a s s , o r

Drainage

fittings

a h a l l be of casC kon,mal- l e a b l e i r o n , braar, o r copper, of reoeseed p a t t e r n , with smooth i n t e r i o r waterways, and with threads

tapped out of s o l i d metal.

A l l malleable i r o n f i t t i n g s and all oast-irau f i t t i n g s made f o r water d i s t r i b u t i o n , shall be galvanized.

4,3.4 Caulking Ferruleam- Caulking f e r r u l e s shall

be o r t h e best quality annealed c a s t brass. o r of annealed c o l d d ~ a m a b ~ e a s brass tubing, -with weights and dimgnsions

i n

accordance with Table

3.

Minimum Weights and Dimensions of Caulkim Ferrules

4.3.5 solder in^ Nipgles and B u s ~ Z ~ S . - Solaering nipples ahall be of brass pipe ( i r o n pipe s i z e ) , o r

of heavy c a s t brass of not l e s s than the weights

shown i n Table 4. Weight 1 l b . 0 oz. 1

*

1 2

*

2 "

8 "

Pipe Size 2 in.

3 *

4

*

TABLE

4

Weights of Soldering Nipples Actual Inside Diameter 2% in.

3%

*

4 t

"

14 1 l b .

6 "

(24)

NATIONAL BUILDING CODE

Solderin bushings s h a l l be .of b r a s s pipe ( i r o n pipe s i z e

f

,

o r of heavy o a s t brass.

4.3.6 Floor Flanges f o r Water-o1osets.- Floor flanges f o r water-closets shall be of b r a s s , and s h a l l be not l e s s than 3/16 inoh i n thickness.

4.3.7 Pipe Clean-outs.- The bodies o r olean-out f e r r u l e s s h a l l be made of standard pipe s i z e a , s h a l l conform i n thickness to _{t h a t required f o r pipe of}

t h e same metal, and s h a l l extend not l e s s than one- quarter inch above the hub. The clean-out cap. o r plug s h a l l be of heevy b r a s s not l e s s than one- eighth inch ' t h i c k i n any p a r t and s h a l l be provided with a r a i s e d ' n u t , recessed sooket

,

o r o t h e r s u i t a b l e 'means of removal.

4.3.8 Tra

+

s.- A l l f i x t u r e t r a p s s h a l l be of vi- t r i f i e d e a r e m a r e , glazed porcelain, v i t r e o u s china, lead, b r a s s , copper, o a s t i r o n , galvanized malleable i r o n , s t a i n l e s s a l l o y s , o r porcelain enamelled inside. They s h a l l have smooth i n t e r i o r waterways of f u l l - s i z e d bore. (See a l s o I t e m

5.5.6.2.)

A l l t r a p s s h a l l have a water s e a l

of

not less than two inches o r more than f o u r inches; provided t h a t t r a p s f o r f l o o r d r a i n s s h a l l have a s e a l of not l e s s than f o u r inohes. Every t r a p t h a t i a not so combined w i t h a f i x t u r e t h a t t h e s e a l is plain- l y v i s i b l e and a c c e s s i b l e s h a l l be provided w i t h a screw clean-out of ample s i z e , protected by t h e water s e a l .

Traps whioh depend f o r t h e i r s e a l upon moveable p a r t s o r oonoealed i n t e r i o r p a r t i t i o n s s h a l l not be used, provided t h a t g r e a s e ' t r a p s may havein- t e g r a l l y c a s t p a r t i t i o n s of oorrosion-resistant

material. n

4.3.9 Baok-water Valves.- Baok-water valves a h a l l have a l l bearing p a r t s of oorroaion-resisting metal

and s h a l l be s o designed and oonstructed a s

60

as- sure a p o s i t i v e s e a l a g a i n s t back-pressure but pbr-

m i t t h e t r e e flow o r waste. 4.4 SHEm METAL

(25)

A

STANDARD PLUMBING BY-LA'N ass p i p s 01 ean-out e i z e s , a h a l l t o r p i p e of B t h a n one- u t cap. o r ban one- be pro-

,

o r o t h e r be of v i - v i t r e o u s galvanized o r c e l a i n n i n t e r i o r so Item of

not

l e s s ; provided a seal of hat i a n o t

L

i a p l a i n - lded with

a

9d by the upon move- Bns s h a l l

nay have in- 3 i s t a n t D ralvea *ell 3ting metal

as

t o .as- re but p'er-

4.4.2 Sheet b r a s s and copper s h a l l not be t h i n - n e r than 0.049 inch ( o r B.- and S. Gauge No.18) provided t h a t f o r l o c a l and i n t e r i o r v e n t i l a t i n g p i p e s

and f l u s h t a n k s hsvirmg. moveable t o p s t h e minimum thickness s h a l l be 2.0126 inch ( o r B. and S Gauge

NS.SS]

..

4.4.9 Galvanize2 s h e e t

iron

o r s t e e l f o r pipe s h a l l not be t h i n n e r than the s i z e s shown i n Table '5.

TABLE 5

Minimum Thiokness of Sheet I r o n and S t e e l f o r Pipe

4.5 USE OF MATERIALS OTHER THAN THOSE SPECIFIED,- Materials o t h e r than those hereinbefore s p e c i f i e d may be used

i n

a plumbing system provided s p e c i f i c approval of them has been given i n w r i t i n g by t h e a u t h o r i t y having j u r i s d i c t i o n . Such a u t h o r i t y may r e q u i r e t h a t t e s t s be conducted by a p u b l i c l y owned o r o t h e r recognized l a b o r a t o r y .

PAEfT 5

-

INSTALLATION

Brown and Sharpe Gauge 26 24 22 Pipe, S i z e i n Inches 2 t o 12 13 t o 20 21 t o 26 5.1 GENE-rlAL REGULATIONS Thi c h e s s i n Inches 0.015 0,020 -0.025

5.1.1 Grades of Horizontal Pipin&.- A l l horizon- t a l piping s h a l l be run i n t r u e alignment and a t . a u n i f 6 6 grade of not l e s s than one-quarter inch p e r f o o t ; provided t h a t water d i s t r i b u t i o n pipe may be run a t n o t l e s s than one-eighth inch per f o o t ; and provided t h a t , when necessary i n t h e opinion of t h e a u t h o r i t y having j u r i s d i c t i o n , hov.se d r a i n s and sewers may be run a t n o t l e s s than ace-eighth inch per f o o t . A l l pipe s h a l l be s o supported o r anchor-

ed a s t o maintain t h e required grade.

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NATIONAL

BUILDING COIX

5.1.2 Support of P i p i n g

(a) A l l s t a c k s and p i p e s a h a l l be r i g i d l y aeoured and adequate provision s h a l l be made f o r expension, oontraction, and s t r u c t u r a l settlement.

V e r t i c a l piping s h a l l be supported a t t h e base and a t every a l t e r n a t e f l o o r , provided t h a t

supports s h a l l not be

more

than 25 f e e t a p a r t , A l l

s t a c k s s h a l l r e s t on a s o l i d base and all horizontal runs of drainage piping s h a l l be supported on mas=-

r y p i e r s o r hung from overhead j o i s t s by s u b s t a n t i a l hangers.

pipe i n t h e ground s h a l l be l a i d on a f i r m

bed throughout t h e i r length. Horizontal l e a d p i p e s

shall have continuous support throughout t h e i r length

.

A l l o t h e r h o r i z o n t a l pipe shall be supported a t i n t e r v a l s of not l e s s t h a n t e n f e e t ,

( b ) S t r a p hangers may be used f o r a l l pipe of diameter up t o two inches; r i n g hangers s h a l l b6 used f o r all pipe of g r e a t e r s i z e . Hangers s h a l l

be metal of heavy p a t t e r n and s h a l l be seourely at-

tached t o t h e building construction.

5.1.3 Expansion Bolts.- Connection of w a l l

hangers', pipe supports, o r f i x t u r e s e t t i n g s with

masonry, s t o n e , o r concrete backing, s h a l l be m d e

with e r p a n s i o n b o l t s without t h e u s e of wooden p l w s

1 4 Changes i n Direotion.- All changes i n d i - r e c t i o n of drainage p i p e s s h a l l be made by t h e ap-

p r o p r i a t e use of 45 degree wyes, half ryes; long- sweep q u a r t e r bends, s i x t h , eighth, o r s i x t e e n t h bends, except t h a t s i n g l e s a n i t a r y t e e s may be used on s t a c k s , and s h o r t q u a r t e r bends may be used

in

s o i l end waste pipes when t h e change i n d i r e c t i o n i s from t h e h o r i z o n t a l t o t h e v e r t i c a l , Tees and c r o s s e s may be used i n vent pipes.

/ S o i l and waste s t a c k s s h a l l be plumPb whenem

p o s s i b l e and s h a l l be f r e e from sharp bends and

t u r n s .

3.1.5 Dead Ends,- Dead ends s h a l l be avoided I n t h e i n s t a l l a t i o n of drainage systems. Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays

(27)

A STAND= PLUMBING BY-LAW l y secured expansion, , a t t h e ed t b a t p a r t . A l l horizontal d on mason- substantial in a firm lead pipes a t h e i r I supported ) i p s o r s h a l l ba lrs s h a l l ~ o u r e l y at- ' w a l l .rigs with .1 be made ' wooden ;es i n d i - by t h e ap- 1 9 , l o w blxteenth lay be used be used

i n

L d i r e c t i o n Teea and Lmb whenem tds and avoided

i n

5.1.6 Protection of ~ i p i % . - ~ lpipes paasing l under o r through w a l l s o r f l o o r s s h a l l be proteoted from breakage and from e x t e r n a l oorrosion.

Bo water-supply o r drainage pipe s h a l l be in-

s t a l l e d o u t s i d e a building o r i n any outside w a l l , unless adequate provision i s made t o p r o t e c t it from

f r o s t , 4

5.1.7 R e s t r i c t i o n s on Location of S o i l and Waste Pipes.- No a o i l or m a t e pipe shall pass d i r e c t l y - _{- -}

over a water tank o r ovpr any place where drinking water,ice, o r food i s prepared, s t o r e d , o r handled.

5.1.8 Workmanshi

.-

Workmanship s h a l l be such as

t o a s s u r e d s -required by a l l s e c t i o n s of t h i s By-law, .and s h a l l be-executed i n a thoroughand approved manner.

2 . 1 Tightness o r J o i n t s and Connections.- All

j o i n t s and connections shall be made Ras and water _- t i g h t a s required by P a r t 6 hereof.

5.2.2 J o i n t s i n Concrete and V i t r i f i e d Pipe.- J o i n t s of oement mortar o r bituminous m a t e r i a l may be used only i n concrete and v i t r i f i e d clay sewer pipe. I n making such j o i n t s t h e b e l l of the pipe s h a l l be f i r m l y packed with oakum o r hemp and s h a l l be secured with cement mortar o r asphalt20 compound a t l e a s t one ineh deep a l l around t h e pipe.

5.2.3 Caulked Joints.- A l l caulked j o i n t s s h a l l be made d t h t h e spigot end i n t h e d i r e c t i o n of flow. They s h a l l be f i r m l y packed with oakum o r hemp and s h a l l be secured with pure l e a d not l e a s than one inch deep, run i n one pouring, and oaulked t i g h t , No p a i n t , varnish, o r p u t t y s h a l l be permitted u n t i l t h e j o i n t s have been t e s t e d .

5.2.4 Sorew Joints.- A l l sorew j o i n t s s h a l l be of approved standard p a t t e r n with threads sharp and true;-,and a l l burrs due t o c u t t i n g s h a l l be r e k d out.

5.2.5 J o i n t s i n Lead Pipes.

-

J o i n t s i n lead pipes, o r between lead pipes and b r a s s o r copper pj-pes, s h a l l be full-wiped j o i n t s , except t h a t solder- brazed o r sweated j o i n t s may be used on reamed,con-

(28)

NATIONAL BUILDING CODE

cave bushings of b r a s s connecting t o exposed b r a s s o r l e a d t r a p s . Wiped j o i n t s s h a l l have an exposed s u r f a c e of s o l d e r of n o t l e s s t h a n three-quarter inch on each s i d e of t h e j o i n t and a minimum t h i c k -

ness of three-eighths inch a t t h e t h i c k e s t p a r t of t h e j o i n t .

5.2.6

J o i n t s of Lead t o Cast I r o n , S t e e l , o r ' Wrou h t Iron.- J o i n t s of l e a d t o c a s t i r o n , s t e e l ,

*ran

s h a l l be made by means of a caulking f e r r u l e , s o l d e r i n g nipple, o r bushing.

5.2.7

J o i n t s i n Copper and B r a s s P i p e a n d Tubin&-

Except aq otherwise permitted i n A r t i c l e 5.2.11, screwed j o i n t s s h a l l b e used i n copper o r - b r a s s pipe; a l t e r n a t i v e l y , j o i n t s s h a l l be soldered by

the use of a s u i t a b l e f l u x , a thin f i l m of s o l d e r being provided between pipe and fittings. A t o r c h

s h a l l be used t o heat t h e assembly t o s o l d e r i n g temperature. Subject t o t h e approval of t h e au- t h o r i t y having j u r i s d i c t i o n , f l u x and s o l d e r s h a l l be as recommended by t h e manufacturer of t h e pipe and f i t t i n g s and h i s i n s t r u c t i o n s f o r making j o i n t s s h a l l be followed. J o i n t s i n t u b i n g s h a l l be soldered i n accordance with t h e foregoing.

5.2.8 S l i p J o i n t s and Unions.- S l i p j o i n t s s h a l l be permitted only i n t r a p s e a l s , o r on t h e i n l e t s i d e of a t r a p . Unions on t h e sewer.sj.de of a t r a p s h a l l be ground faced and s h a l l not be concealed o r

enclosed. t i o n s .

G i a T a

9

C l o s e t , U r i n a l , and Trap Slop Sink Come-

-

The connection between s o i l or waste p i p e s . t e r - c l o s e t s , f l o o r o u t l e t s l o p s i n k s , u r i n a l a , and earthenware t r a p s t a n d a r d s s h a l l be made by means of b r a s s f l a n g e s , caulked o r screwed t o t h e drainage pipes. They may be wiped o r s o l d e r e d t o l e a d pipes. The c o ~ e c t i o n s s h a l l be b o l t e d , w i t h

heavy b r a s s b o l t s and heavy b r a s s washers, t o t h e earthenware with a g a s k e t o r washer between t h e earthenware and t h e connection.

5.2.10 I n o r e a s e r s and Reducers.- Any i n o r e a s e r o r reducer, oonnecting d i f f e r e n t pipe s i z e s , s h a l l be of t h e r e q u i r e d s i z e and s h a l l have a p i t c h of not more t h a n 4.5 degrees with i t s c e n t r a l axis.

5.2.11 Weldina of Plumbing J o i n t s and Connec- tions.- The welding of any c a s t - i r o n p i p e , and of

m,

s o i l , vent, o r w a s t e pipe o f any m a t e r i a l i s

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A STANDARD PLrnBING BY-WtJ 3aed b r a s s an exposed se-quart er imum t h i c k - 3 t p a r t of 391, o r )n, s t e e l ,

:

a oaulklng md T u b i ~ . - Le 5.2.11, o r * b r a s s Ldered by o f s o l d e r 3 . A t o r c h s o l d e r i n g ? t h e au- Lder s h a l l "he pipe :ing j o i n t s la11 b e 5 l i n t s s h a l l - le i n l e t 3 o f a t r a p ~ n c e a l e d o r ink Connec- ~ s t e p i p e s ;a, urinals, made by rd t o t h e bldered t o . t e d , w i t h ..s, t o t h e reen t h e . n o r e a s e r :es, s h a l l a p i t c h o f

.

axis. Comet- I , and of

f o r b i d d e n . The welding of any g a l v a n i z e d p i p e u s i n g f e r r o u s f i l l e r m e t a l i s f o r b i d d s n . J o i n t s and con- n e c t i o n s i n water-supply p i p e s made of b r a s s o r copper, o r combinations of t h e s e m a t e r i a l s , may be made by bronze-welding. J o i n t s and c o n n e c t i o n s i n g a l v a n i z e d watsr-supply p i p e s may be made by bronze- w e l d i n g , provided t h a t such j o i n t s and c o n n e c t i o n s a r e p r e p a r e d and welded i n a manner which w i l l p r e - s e r v e t h e g a l v a n i z i n g m a t e r i a l on t h e i n s i d e of t h e p i p e o r f i t t i n g , and provided f u r t h e r t h a t t h s ex- t e r i o r of t h e f i n i s h e d weld and t h e a d j a c e n t a r e a on which t h e g a l v a n i z i n g m a t e r i a l may have been de- s t r o y e d s h a l l be a d e q u a t e l y p r o t e c t e d a g a i n s t c o r - r o s i o n . The welding of any j o i n t s o r connection,^

i s f o r b i d d e n u n l e s s s p e c i f i c a l l y p e r n i t t e d h e r e i n .

A l l welding s h a l l be performed i n accordance w i t h a c c e p t e d good c o m e r c i a l p r a c t i c e . The weld-

i n g r e q u i r e m e n t s of t h e American S t a n d a r d s Associa- t i o n a s s e t f o r t h i n Chapter 3 of S e c t i o n 5 o f t h e p u b l i c a t i o n e n t i t l e d Anerican

enta tat

i v e S t a n d a r d Code f o r P r e s s u r e P i p i n g , numbered B 31.1

-

1935, s h a l l b e a c c e p t e d a s good commercial p r a c t i c e and a l l w e l d e r s s h a l l be q u a l i f i e d i n accordance w i t h t h e q u a l i f i c a t i o n t e s t s s e t f o r t h t h e r e i n .

5.2.12 P r o h i b i t e d J o i n t s and Connections.

-

Any

f i t t i n g o r corlnection which h a s a n enlargement, chamber, o r r e c e s s , w i t h a l e d g e , s h o u l d e r , o r r e - d u c t i o n of t h ~ p i p e a r e a i n the d i r e c t i o n of f l o w , on t h e o u t l e t o r d r a i n s i d e of any t r a p , i s pro- h i b i t e d . ( S e e a l s o A r t i c l e 4.3.2.)

5.2.13 J o i n t s n o t S p e c i f i e d . - Types of j o i n t s o t h e r t h a n t h o s e h e r e i n s p e c i f i e d may be used when s p e c i f i c a l l y approved i n w r i t i n g by t h e a u t h o r i t y having j u r i s d i c t i o n .

5.3 WATER DISTRIBITI ON SYSTEMS

5.3.1 D i s t r i b u t i o n . - A l l w a t e r d i s t r i b u t i o n s y s - tems s h a l l be e n t i r e l y independent of any o t h e r p i p i n g system and n o c o w e c t i o n s h a l l b e made o r c o n d i t i o n p e r m i t t e d whereby any f o r e i g n m a t t e r might e n t e r such d i s t r i b u t i o n systen! whether by gra- v i t y , syphonage

,

l e a k a g e , o r back p r e s s u r e .

5.3.2 Adequacy of Y a t e r S

.-

The w a t e r s e r - v i c e p i p e t o any b u i l d i n g s be of s u f f i c i e n t s i z e t o - p e r m i t a c o n t i n u o u s f l o w of w a t e r from a l l

o u t l e t s a t one time provided t h a t i n no c a s e s h a l l

(30)

i t s i n L e r n a 1 d i a m e t e r be l e s s t h a n f i v e - e i g h t s i n c h ,

A l l plumbing f i x t u r e s s h a l l be p r o v i d e d w i t h a w a t e r

SUPPLY s u f f i c i e n t t o k e e p them i n a c l e a n and s a n i - t a r y c o n d i t i o n .

5.3.3 S i z e s of Pipe.- The minimum i n t e r n a l d i a - meters of w s t e r d i s t r i b u t i n g p i p e s t o f i x t u r e s s h a l l be one-half i n c h f o r s i l l c o c k s , h o t w a t e r b o i l e r s , l a u n d r y t r a y s , s i n k s , b a t h - t u b s , and u r i n a l s , and t h r e e - a i ~ h t - h s i n c h f o r l a v a t o r i e s and w a t e r - c l o s e t t a n k s . 5 . 3 A R e s t r i c t i o n s on M a t e r i a l s , - A l l w a t e r - d i s t r i b u t i o n p i p e s h a l l be of l e a d , o r of g a l v a n i z e d wrought i r o n o r s t e e l , b r a s s , c a p p e r , o r c a s t i r o n , , w i t h b r a s s o r { p l v a n i z e d i r o n f i t t i n g s , o r of cop- p e r t u b i n g w i t h s a l d e r e d - o n bronze f i t t i n g s . No p i p e 3~ f i t t i n g s t h a t have been u s e d f o r a n y o t h e r p u r p o s e s h a l l be used f o r d i s t r i b u t i n g w a t e r , 5.3.5 P r o t e c t i o n . - -411 c o n c e a l e d o r exposed vrater p i p e s , s t o r a g e t s n k s and f l u s h i n g c i s t e r n s s h a l l be s d s q u a t e l y p r o t e c t e d a g a i n s t f r o s t . 5.3.6 C a n t r o l Valves.- C o n t r o l v a l v e s s h a l l be p r o v i d e d on wqter p i p i n g a s f o l l o w s : a s t o p o r c u r b v a l v e

ac

o r n e a r t h e c u r b ; a s t o p and w a s t e v a l v e i n s i d e t h e f o u n d a t i o n w a l l ; c o n t r o l v a l v e s f o r e a c h f l a t o r a p a r t m e n t ; a n i n t e r i o r s t o p v a l v e f o r e a c h exterirr o u t l e t and f o r e a c h h o t w a t e r t a n k ,

3.3.-7 2 e l i e f Valves.- Whenever a check v a l v e , w a t e r m e t e r , o r p r e s s u r e r e g u l a t i n g v a l v e i s i n - s t a l l e d on t h e w a t e r s u p p l y p i p e between t h e s t r e e t main and a h o t w a t e r t a n k , a s u i t a b l e r e l i e f v a l v e s h a l l b e i n s t a l l e d on t h e h o t w a t e r d i s t r i b u t i o n system. 5.3.8 B o t e c t i o n .Against R e s u l t s of Water-

stoppage.- P r o t e c t i o n shall be p r o v i d e d i n the i n - s t a l l a t i o n of any d e v i c e c o n n e c t e d w i t h a w a t e r d i s t r i b u t i o n system t o e n s u r e t h e s a f e t y of t h e o c c u p a n t s of any b u i l d i n g i n t h e e v e n t of a n i n t e r - r u p t i o n of t h e w a t e r s u p p l y . 5.4 PLUICBING FIXTURES 4 . 1 S u p p o r t

.-

A l l wall-hung f i x t u r e s s h a l l be r i s i d l y s u p 2 o r t e d by approved m e t a l h a n g e r s o r b o l t s and a l l f l o o r - o u t l e t f i x t u r e s s h a l l be r i g i d l y s e - c u r e d t a t h e f l o o r by approved screws o r b o l t s . Copyright © NRC 1941 - 2019 World Rights Reserved © CNRC 1941-2019 Droits réservés pour tous pays