Dogsbestfriend
New Member
Hello and thanks in advance for any advice. Replacing an old kitchen p-trap and arm. Old arm was badly corroded and is stuck in the pvc wall adapter. Tried using a screwdriver around the pipe to loosen it (no luck) and when trying to twist it out, the metal has started sheering away at the coupling. (green circle) Based on searching here, seems like there are a few options:
1. Continue working / crushing old pipe, maybe use penetrating spray (PB?), and basically just work it out in pieces. If I try this, and the pipe fully sheers off at coupling, then what about the bit of old pipe that will be left in the pvc coupling? How would I get that out?
2. Cut the damaged pipe short and used a rubber coupling (fernco?) to connect the new arm. Have not used a rubber coupling before, not sure if it would seal properly given where the old arm has already sheered.
Am I missing a better solution? Appreciate any insight, trying to avoid making the problem worse.
1. Continue working / crushing old pipe, maybe use penetrating spray (PB?), and basically just work it out in pieces. If I try this, and the pipe fully sheers off at coupling, then what about the bit of old pipe that will be left in the pvc coupling? How would I get that out?
2. Cut the damaged pipe short and used a rubber coupling (fernco?) to connect the new arm. Have not used a rubber coupling before, not sure if it would seal properly given where the old arm has already sheered.
Am I missing a better solution? Appreciate any insight, trying to avoid making the problem worse.