DavidTu
Member
I have an old-old cast iron double-bowl laundry sink in the basement against an exterior wall. The bowls are about 25" apart. I am thinking I can get a Continuous Waste Kit (or make one) to connect the bowls and go into a P-trap. The sink will sit in a shallow alcove and so at this point the drain (wall tube) will pass through the alcove side wall (drain still running parallel to the exterior wall). The tricky part is that the old cast iron drain has a threaded sani-T with a 1-1/2" nipple threaded into it. Can I simply connect the wall tube into a slip-joint coupling and then go to a direct connect tube to the nipple? The direct connect is what the original implementation was. However, I have read that it is "not OK" to have any tailpiece extension after the wall tube? Is that true? What is the purpose/meaning of this?
In any case, please see the attached diagram and see if what I have flies... if not please advise.
Diagram notes:
For reference, I have included letter labels for various parts on the diagram (A-K) please refer as needed. There are two alternatives based whether I can find a Continuous Waste kit (CW-kit): B-2 uses a 90-deg coupling instead of a CW-kit and D-2 uses a Tee Coupling instead of the CW-kit.
Thanks!
In any case, please see the attached diagram and see if what I have flies... if not please advise.
Diagram notes:
For reference, I have included letter labels for various parts on the diagram (A-K) please refer as needed. There are two alternatives based whether I can find a Continuous Waste kit (CW-kit): B-2 uses a 90-deg coupling instead of a CW-kit and D-2 uses a Tee Coupling instead of the CW-kit.
Thanks!