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Tips on Unscrewing Kitchen Sink Waste Pipe?
Josh wrote:
.... everything has gone reasonably well until I tried to unscrew the metal waste pipe that runs from the trap to the main sewer pipe in the wall. I'm sure it's been in there since the house was built in 1959 and I can't get it to budge, even with a 24" pipe wrench. This particular one looks like very tarnished copper, about 7" long and 1 1/2" in diameter. It appears to be sweat soldered on to a 2" bushing or threaded male adapter, which is threaded into the main pipe in the wall. They used a lot of pipe joint compound on the threads, and it's hardened. I've squirted Liquid wrench on in 3 times, but since it's running horizontially I don't think it's penetrating very far. Any of you professional or experienced amateur plumbers got any tips on how to deal with it? I've been using the pipe wrench near the trap, so I won't accidentally damage the new hot & cold water plumbing. Also, I've got more room to work out there. Would I be able to apply more torque closer to the wall (connection)? Not as much room to work close to the wall, because of the other plumbing. Most unusual if it's actual the pipe that's threaded; I'm guessing it's standard compression waste fitting and you need to work on the fitting not the pipe. But, can't see if from here... -- |
#2
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Tips on Unscrewing Kitchen Sink Waste Pipe?
Why not just leave it, cut off the pipe, leaving enough to put a no-
hub coupling like one of these: Thanks guys.....That's exactly what the guy who installed my new countertop (minus sink) recommended I do this morning. I found one like you referenced at Lowe's. It says it's for 1 1/2 inch pipes of similar or dissimilar material but it seems a lot bigger than that. Hopefully it will tighten up snug around the cut off copper waste pipe and the new PVC from the trap. |
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