How can I replace PVC P-Trap Arm Glued in place?

Question

While investigating a leak under kitchen sink I discovered cracks in the p-trap and trap arm (the part coming out of the wall). It looks like the arm is glued in place and is definitely leaking.

How can I fix this? Do I need to Cut the pipe or is there some other way of stopping the leak? If I cut it, how can I make sure I don't break the pipe coming out of my wall? Any tricks for this?

It looks like whoever installed the pipes forced them in to accomodate the disposal. Rather than rethinking their pipe layout, they just forced them all in and over time the pipes cracked. I'll rework the pipes to relieve the stress once I get the new p-trap arm in.

Thanks for the help.
-Mike

Answer 1

First figure out what pipes you can save, then mark down all the pipes, as they are in alignment, purchase them, along with the glue and cleaner. Then cut the pipe close to whatever fitting your going to start with, with a hacksaw. Sand the rough edges off and wipe it clean, now wipe cleaner on it and, no smoking.
Start putting your pipes back together again. To be on the safe side you could put all the pipes together first and make sure they line up, then take them apart and put them together permanently.

Answer 2

Well Mike, I seriously think whomever put my pipes in, went directly over to your house. Sorry but it will have to be cut ,using either a PVC cutter or a Mini Hacksaw. You will also have to replace the pipe it was glued to. I just re did under my sink, and works great now. Makes me wonder how can those guys call their selves plumbers? Dumb. Byee

Answer 3

I agree with Cowboy's answer if the damage is serious enough. Hacksaw it and then replace. But..... if it is just a crack, what I would do is this: let everything dry completely and then seal it up with JB Weld. I once got an extra three years out of a truck radiator with this product.