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re: P trap help - how would you repair?

Posted on 3/21/24 at 9:42 am to
Posted by VanRIch
Wherever
Member since Sep 2007
10493 posts
Posted on 3/21/24 at 9:42 am to
Here’s the full system:


I also noticed they put 2” under our main sink
Posted by MrBobDobalina
BRo.LA
Member since Oct 2011
2996 posts
Posted on 3/21/24 at 10:00 am to
I'll give them props for properly venting your island (chicago/loop vent) and not just throwing a studor vent under there.

If you want to avoid cutting in a tee or using the socket saver there is another option if you have the space.

For the record, nickel and dime repair (teflon/pipe dope) may also stop the leak but my brain doesn't work that way towards plumbing like it might towards trades I'm not as well versed in, and it wouldn't be considered a fix, just a bandaid.

The other option would be to cut out your recently installed p-trap as close to "A" as possible (give yourself some work space by unhooking the disposal). Leave as much of pipe "B" intact as you can. A 2" fitting needs a maximum of 3/4" for full insertion. If pipe "B" is 3/4" or more (a hair under that is fine too) glue a 2" coupling onto pipe "B". Glue a 2x1-1/2 bushing into the coupling. Glue an 1-1/2" male trap adapter into the coupling/bushing. Buy a $6 SJ P-trap from any hardware store and an 1-1/2" extension tailpiece to be sure you don't have to go back.

In a perfect world, all glue joints are behind a wall. Hope this helps. Tight spaces are never fun
This post was edited on 3/21/24 at 10:07 am
Posted by MrBobDobalina
BRo.LA
Member since Oct 2011
2996 posts
Posted on 3/21/24 at 10:05 am to
Some states like NY and CA require 2" traps in kitchens, LA does not. Those states circumvent glue joints by using galvanized or cast iron fittings for drainage. Glue joints are much less forgiving as once they dry (obviously) you're stuck with what you have. SJ you can loosen and retighten forever. Its not neccesairily a bad thing to have 2 inch, it just kind of bastardizes the fittings as it is not standardized in our area.
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