Replacing Basement Bathroom Plumbing

[snucky]

Hi,

I am replacing/moving tub and toilet in my basement bathroom. I would appreciate anyone's input/thoughts/suggestions before I pour the concrete back in :-)

Link to a labeled pic:
http://reimann.files.wordpress.com/2011/09/basement-bathroom-plumbing.jpg

Thanks!!

[johnjh2o]

You need to vent the tub. The tub drain including the trap should be 2" then reduced after the trap. The vent for the toilet can not run horizontal below the flood rim of the fixtures and you can't lay the sanitary tee flat. I'm afraid it wouldn't pass any inspection.

John

[snucky]

Hi John, thanks for your help. I am going to try to get more details out of you, if that's okay:

Originally Posted by johnjh2o

You need to vent the tub.

Did you see the 2" roof vent that is located very closely to the tub drain, on its way to the main stack? It's within 3 feet of the trap. Is that not close enough?

Originally Posted by johnjh2o

The tub drain including the trap should be 2" then reduced after the trap.

I will change that! Thanks!

Originally Posted by johnjh2o

The vent for the toilet can not run horizontal below the flood rim of the fixtures and you can't lay the sanitary tee flat.

Would it suffice if I rotated the sanitary tee 45 or 90 degrees upward (so that it faces the ceiling) and then got another matching elbow so that I could continue the direction outlined in my picture?

Thank you!!

[johnjh2o]

I have a question for you. What is connected to the upstream side of your work? And what was the existing 2" vent for. If it is for a toilet on the upstream side of your work then you can not connect anything between the existing toilet and it's vent. You must connect your work beyond that 2" vent.

John

[snucky]

Hi John, this is a remodel project and the 2" vent is part of the layout how it was prior to me moving the fixtures. Before, the vent was there for the shower (now tub)

I'm not 100% sure what's behind that but the main stack is only another five feet from the Main stack so I am guessing that it just goes into the main stack.

Does that answer your question?

[johnjh2o]

What I'm asking is what is on the upstream side of your work. Not the side the 2" vent is on.

John

[LiQuId]

you cant reduce like that, it has to be the same size untill it hits the 3" how else would you auger it should you need to ? and a blockage would occur where it to reduce, once one size it must stay that size or increase.. it seems strange but even the 3" double wye would fail because it increases without means to properly clean out the brancg.

shower not vented.. fail code.
T used to connect Drainage./ fail code.

IF the T was a wye it could vent the toilet provided it be rolled so that the vent outlet be above the horizontal centerline of the 3" branch and equipped with a cleanout to serve it. minimum 2" below flood rim and served by a minimum 2"m cleanout.
Canadian Code.

and as john has asked, what is coming from the upstream side ? ( what fixtures drain to the building drain before this unfinished bathroom project.)

[snucky]

hi guys, thanks for your help.

about the upstream: there is some drainage coming from the upstairs. Those fixtures are separately vented.

about the the tub: how would I properly vent this?

[Gorgonzola]

thats not very good. i recommend a different kind of caulk

[phishfood]

I don't see how a different caulking is going to fix a venting problem.