Re-piping a bathroom lavatory drain. The original has a short stub pipe screwed into the waste pipe, and to that stub, a 90 degree ell connecting to the trap.
In the new configuration, I must remove the ell, and run a horizontal straight into the stub, sealing it with the conventional plastic ring and screw ring. The stub has been there about 30 years or so, and the pipe wall is much thinner than the stub replacement I bought today. The pipe end is rusted and damaged, and while that made no difference with the ell, it will not make a seal with the plastic ring. I need to remove the stub and replace it. When I bought the parts just as the supply house was closing for the day, I asked about removing it and the plumber there said yes, just put a pipe wrench on it and jump up and down on it and eventually it would break loose. I was all ready to do that tonight until I discovered the thin wall of this pipe.
Does anyone know if there is a danger that an old, thin wall galvanized pipe about 1 1/2 to 2 " diameter is likely to collapse under the torque of a heavy handed use of a pipe wrench? It seems like it might. If it is possible, and does collapse, is there anyway to remove the stub at that point. I would like not to have to tear out the wall that is all ready for finish painting and completing this redecorating project. (Is there a way to get around removing by screwing on some type adapter that is short and will leave me room to complete the drain pipe to the la? Since this is a holiday weekend, it would have to be something available at the Home Depot or some similar outlet. as supply houses are closed.)
Thanks Sandy