Adding a branch line for addition of Master bathroom

[Russ Paton]

Hi all,

I think I have it right here but please check the photo and correct or guide me if I am wrong.

Existing 3.5" drain coming from toilet and picking up 2" lines from sink and shower and dropping 90 and continuing through the slab. Excellent slope of .5"/12" over 4'

I want to come into this 3.5" line just before it drops 90 with a 3.5" Branch drain from the addition, The new toilet is the farthest point on the run at just under 10' and it will pick up the new shower and the new sink. I will be able to maintain greater than a .25/12" slope on this branch. A new stack will be Installed to vent the sink and shower.

Any sirens going off or can I get started.

Thanks. We have to conform to BC code.

 

[Russ Paton]

Ok, if nobody can answer specifically for BC code will it work in your region?

 

[Sponsor]

 

[Reach4]

Movie quote:

Wednesday Addams: May I have the salt?
Morticia Addams: What do we say?
Wednesday Addams: NOW!​

http://www.imdb.com/title/tt0101272/quotes

OK, not the most apt quote, but it is what came to mind.

 

[Terry]

You can have up to three bathroom groups on 3", which is about 3.5" OD
The 1/4" per foot grade is perfect.

 

[Russ Paton]

You can have up to three bathroom groups on 3", which is about 3.5" OD
The 1/4" per foot grade is perfect.

Awesome thank you, I thought I was on track but the friggin plumbing code buried in the building code is like $300 and I won't need it again. This is only the third bathroom in house and only the second on the stack.
Thanks again.

 

[hj]

Whoever did the existing piping did not seem to be worried about installing a vent on the tub/shower drain before connecting it to the 3" line, so how can we be sure YOU will do it properly? Some people consider ANY pipe connected to a drain line and going up through the roof to be a proper vent.