Fernco or ABS wyes?

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degscell

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The horizontal wye is leaking under my aunt's bathtub. I plan to cut the galvanized pipe before and after the two wyes. Should i replace with fernco wyes (if i can find them) or use ABS wyes and pipe with fernco couplings? shielded or unshielded?


is that 2" galvanized vent likely supported in the wall? galv OD is 1.75" and 2.25", that translates to 1.5" and 2" sch 40 right?
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Reach4

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Is that wye connected with lead, or does the wye have threads?

I would not presume that vertical galvanized is supported in the wall above. Before cutting that pipe, I would use a riser clamp and carpentry to hold that up.

I also wonder if that wye or downstream is clogged, at least partially.
 

Breplum

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The wye fitting is called a combo. the other fitting is a Tee. so 2" combo then a 2 x 1.5 x 1.5 tee.
ABS is good. Always Shielded/never unshielded except for repairs. YES that is 1.5 and 2" pipe
On 2" and 1.5" regular no-hub couplings are ok (though not listed by code) they are nevertheless the same OD in steel or plastic pipe.
Cut out all the steel pipe as far as you can. That pipe is end-of-life and rusts out inside causing ready clogging. plastic pipe must be rigidly supported every 4' (not plumbing tape strapped). They make rigid hangers but 2 x 4 with plastic strap will be ok.
You seem unfamiliar with this and in that space it is not a good place to learn. Better to hire a local independent plumber.
 

degscell

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The wye fitting is called a combo. the other fitting is a Tee. so 2" combo then a 2 x 1.5 x 1.5 tee.
ABS is good. Always Shielded/never unshielded except for repairs. YES that is 1.5 and 2" pipe
On 2" and 1.5" regular no-hub couplings are ok (though not listed by code) they are nevertheless the same OD in steel or plastic pipe.
Cut out all the steel pipe as far as you can. That pipe is end-of-life and rusts out inside causing ready clogging. plastic pipe must be rigidly supported every 4' (not plumbing tape strapped). They make rigid hangers but 2 x 4 with plastic strap will be ok.
You seem unfamiliar with this and in that space it is not a good place to learn. Better to hire a local independent plumber.
that is good advice thank you. yea i might let my aunt hire a plumber. ive done a bit of plumbing but never worked with old galvanized dwv. id definitely readily more work on that than the copper supply though. definitely not good enough at soldering.
 

degscell

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Is that wye connected with lead, or does the wye have threads?

I would not presume that vertical galvanized is supported in the wall above. Before cutting that pipe, I would use a riser clamp and carpentry to hold that up.

I also wonder if that wye or downstream is clogged, at least partially.
its threaded. yeah there's another spot where i am sure the pipe in the ground is leaking. little roots visible. whole house prolly needs a dwv repipe. but that tub drain leaks a lot at the threads so i was just gonna replace that lil area for now.
 

Reach4

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its threaded. yeah there's another spot where i am sure the pipe in the ground is leaking. little roots visible. whole house prolly needs a dwv repipe. but that tub drain leaks a lot at the threads so i was just gonna replace that lil area for now.
I tried doing work with two cast iron santees. Ended up cracking them both, cutting galvanized, and inserting plastic. It would have been much simpler for me if I had skipped trying to make those threaded connections work.
 
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