OK, here's an overview of the problem:
Home was built around 1940, usually top-quality construction throughout
- with exceptions.
Here's the problem:
As I noted, there was another leak which caused a lot of the white discoloration. That leak was repaired a long time ago. This current problem is the one I'm addressing, and it obviously begins at that Tee, where the pipe heads downward toward the trap.
Here's a much better view of the bottom of that Tee: (kinda large file)
I'm looking for a solution here. My primary plan is to remove the whole trap, use a sawzall at the lower right of the first photo, install a new fitting (PVC probably) into the brass Tee, create enough room to tighten the fitting this time, and somehow join the other end to the cut drain pipe.
The pipe heading into the Tee measures 1.5" O.D. The O.D. of the drain pipe where I plan to cut is 1.75". If I use PVC, how the heck am I going to make the junction?
I saw a halfway similar segment on Ask This Old House, and Richard used sort of a bellows type of flexible coupler that used hose clamps. How would that work with two different sizes of pipe?
(Yeah, also planning to reinforce that framing member, even though it's held up fine for 68 years; it's also holding up the tub!)
Ideas welcome. Thanks.