Installing a new tub and needed to move the ptrap. Please let me know if the proposed angle poses any problems. 
-
Why does the joist with the hole look skinnier than the other joist? Am I hallucinating that? It looks substantially skinnier.– pophamCommented Dec 9, 2023 at 20:45
-
Off hand, it looks to be a 1" board put in as a patch after cutting out the joist there. On the other hand, there appears to be vinyl tile floor directly below the lumber, like this is a raised section over an old floor, so it may not really be a joist as such.– EcnerwalCommented Dec 9, 2023 at 22:36
Add a comment
|
1 Answer
If the large vertical offset to the drain is only for the picture, (because you have't cut that pipe to connect to, yet) this is fine - the P trap can be contorted in any way horizontally without changing its function.
But if there's a vertical drop of one pipe diameter (or somewhat less, depending on the applicable code) into the drain, that makes it an S trap, and those tend to siphon dry and give your tub sewer gas problems.
Using a sanitary Tee laid on its side rather than a Wye to enter the larger pipe is a pre-existing code violation.
