Recently my kitchen sink started backing up into an old pipe. It was cut and sealed outside at the main drainage pipe. Now the next joint up is leaking. Do I need to replace the whole pipe or seal it? Could a blockage in the drainage line be causing it to back up? I am worried because this pipe is located against the wall of my house and runs thru my utility room with the hot water heater and circuit breakers.
A blockage could well be causing it to back up and leak there. Caulk it, maybe, as a temp measure. Jim
I suggest you find what was and is causing the blockage and back up. You don't fix a leak caused by a backup by sealing the leak, at least you don't do it if you want it properly fixed. I may have it wrong, but it sounds like you are trying to fix the symptom not the cause. Sort of like sitting on a tack, and taking a pain pill rather than standing up.
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