I'd like to install a washer standpipe in this laundry reno, instead of just draining through sink on left. I've drawn one proposal for the standpipe to p-trap, tying into drain under the existing sink drain, with vent tying into the horizontal vent run above. Is this an acceptable setup? Any better ideas?
I appreciate any ideas you may have.
- opposite side is a bathroom with sink drain coming into the image from the right and tub drain in lower left.
- the main stack from upstairs bathroom is also on the left
- there is also some space further to the right if it makes more sense to drain into the 4" down there, but space is at a premium everywhere