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Condo Remodel DWV Setup

What is with the combo on the vent stack? Sink trap arm looks a little long (60-in max via UPC T1002.2) and possibly flat.

Agree with Steve that the studs are over cut.
 
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Why is this wye installed in this manner, especially if it is a wet vent stack from above, water adheres to the wall of the pipe and will travel down the vent line, also TP may become lodged on the ledge created leading to clogs. Not sure a long sweep should be used as well. Besides, PVC in walls on a multistory building are a poor design choice for noise.

upload_2019-10-30_20-22-51.png
 
# # #

1. Nail guards missing on upper vent line.
2. The lower drain line appears to not have enough
drainage slope.
3. Copper water lines in contact with dissimilar metal
in places.
4. What is being used to hold [ secure ? ] the flex
conduit in-place ? Approved ?

& & &
 
Agree with all comments by North Star.

I’m not certain if I’m more impressed or scared as to how they installed that sweep tee in a 10 story stack having a unit above without a slip coupling or shear band fernco, guarantee that fitting is not held on by much!
 
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jwilly3879 said:
What's the chain hanging out of the tee?
Click to expand...
Chain is attached to the test ball plug. That way when you release the air, the plug doesn't go down the line.
 

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