How to plumb basement sink drain?
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Jadnashua
Retired Defense Industry Engineer xxx
Does the horizontal drain slope down to the vertical connection?
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It appears that between the vertical stack (where the tee is) and where the sink goes, you are offsetting 180 degrees (on the horizontal).
The tee is where the vent for the sink is.
If you would have drilled the studs and aimed the tee toward the 90 for the sink, you would be fine.
The tee is where the vent for the sink is.
If you would have drilled the studs and aimed the tee toward the 90 for the sink, you would be fine.
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oldrover
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Doh! 
Thanks. Now I understand.
I did it that way because the wall was framed slightly out of square and I am ripping 2x4's to make that wall square. So, there isn't room to notch them. So, can I get by with this, or is there another way to do it?
Thanks.
Thanks. Now I understand.
I did it that way because the wall was framed slightly out of square and I am ripping 2x4's to make that wall square. So, there isn't room to notch them. So, can I get by with this, or is there another way to do it?
Thanks.
hj
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drain
It will work, but it may be more difficult to snake it if the line becomes obstructed.
It will work, but it may be more difficult to snake it if the line becomes obstructed.
And an inspecter would likely turn you down with the extra bend in the pipe.
No plumber would have done it that way.
No plumber would have done it that way.
Gary Swart
In the Trades
How about making the entire wall wider. You could sister on to the 2x4 studs with 2x6s or even 2x8s and that would give you the room you need. Walls that have drain pipes usually have 2x6 studs.
oldrover
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Thanks for the suggestion!
I hadn't thought of using 2x6's. Sounds like a good idea!
Just to make sure I'm not screwing this all up, I have attached more photos to better represent my situation.
In order to make the tub fit correctly, and keeping the room square, I figured that I would need to rip some 2x4's to just barely enclose the vent pipe.
But, the toilet rough in will be 12 inches on center from the studs, so I have to get a 10" toilet, right?
I also have a standard tub at the end of the bath. That rough in seems to be ok. As you can see, I have already dug it out and attached the drainpipe to make sure it fits. (I am really paranoid about screwing this up!)
I hadn't thought of using 2x6's. Sounds like a good idea!
Just to make sure I'm not screwing this all up, I have attached more photos to better represent my situation.
In order to make the tub fit correctly, and keeping the room square, I figured that I would need to rip some 2x4's to just barely enclose the vent pipe.
But, the toilet rough in will be 12 inches on center from the studs, so I have to get a 10" toilet, right?
I also have a standard tub at the end of the bath. That rough in seems to be ok. As you can see, I have already dug it out and attached the drainpipe to make sure it fits. (I am really paranoid about screwing this up!)
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Jadnashua
Retired Defense Industry Engineer xxx
When you add the 1/2" drywall, the 11.5" you have left will still allow some 12" toilets to fit...so, all is not lost, you just have to be more selective. The selection of 10" rough-ins isn't as big.
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