WORKS/WORKS II
Retired Contractor
I resently retired from the Air Force and have lurked here over the years for much needed advise on the many places we have live requiring plimbing repairs etc . . . so thanks to everyone for the help. I am installing a Washing Machine Standpipe and drop in 8 inch deep cabinet sink off the stack in the attached photo. This 3 in stack services a bathroom directly above it (Toilet/Lav/Shower) As you can see this stack was offset using a 45 and a street 45 . What I would like to do is raise the offset higher up the wall, keep the abs clean out at the bottom and double stack two sani-tees, one for the washer stand pipe and one for the drop in sink.
The yellow line (forgive crude drawing) is the proposed change to the stack offset location.
The horizontal red lines are the new drains.
The blue is venting that would go into attic and tie back into the 3 inch stack above the insulation.
Drains and venting would be 2 in pvc and the proposed stack change (raising the offset) would be 3 in PVC with Fernco Shielded Proflex Connector.
Second question, as an alternative, could I remove the clean out at the stack base and 45's and replace with a 3 x 3 x 3 y with a 45 taking the y vertical in 3 in PVC, double stack 3 x 3 x 2 sani-tees (one would come out of the wall for the sink) add a clean out above that and then reduce the new 3 in to 2 in and vent it and the stand pipe as shown in the second picture ?? Sorry to be such a pain and again . . .thank you for your assistance in advance.
The yellow line (forgive crude drawing) is the proposed change to the stack offset location.
The horizontal red lines are the new drains.
The blue is venting that would go into attic and tie back into the 3 inch stack above the insulation.
Drains and venting would be 2 in pvc and the proposed stack change (raising the offset) would be 3 in PVC with Fernco Shielded Proflex Connector.
Second question, as an alternative, could I remove the clean out at the stack base and 45's and replace with a 3 x 3 x 3 y with a 45 taking the y vertical in 3 in PVC, double stack 3 x 3 x 2 sani-tees (one would come out of the wall for the sink) add a clean out above that and then reduce the new 3 in to 2 in and vent it and the stand pipe as shown in the second picture ?? Sorry to be such a pain and again . . .thank you for your assistance in advance.