I have to replace the J bend pipe under my sink. It basically broke apart. I can't get the nut off of the pipe?

Question

I can't get the big nut off of the pipe that goes into the wall. It turns but won't go up or down. Which way is it supposed to go? up or down, and looking at the pipe staight on I am turning it counter clockwise, though it will turn clockwise too, and not move up or down in either direction. Hope this makes sense... plus, can I use silicone caulk to secure the drain trap to the sink..

Update:

ok, I cut it off. Now the j bend will not attach to the back pipe, as that was the nut that would hold it on. What type/size/??? of rubber clamp or nut do I get now?

John · Accepted Answer

The easiest solution is to measure the O.D. (outside dimension) of the pipe coming out of the wall, or take the piece you cut off. Go to a plumbing supply store (best) or to a Lowe's or Home Depot. The store salesman will find a pipe with the exact O.D. dimension you measured (to use as a reference only), then match up compression fittings to connect from the wall to a new horizontal piece, then to the p-trap. (What you called a J bend pipe). PVC fittings will be much easier to work with also. Connecting the drain housing to the sink is done using plumber's putty under the lip of the housing and tightening the nut underneath, which will create a waterproof seal. Do not use silicone.

boredstiff8 · Answer

looking at the pipe you will need to turn the nut counter clockwise to loosen....if the pipe sticking out of the wall is an old steel pipe? you may have to get a hacksaw   and cut a slice thru the nut.. then spread it apart and remove....you could you silicone but it will be extremely messy if done wrong...most new J bends will come with a nut and washer...which shouldnt need silicone...if the threads on the pipe coming out of the wall are junk?   you may need to get a rubber clamp that will be sized to go from that to the J bend.... if you decide on the silicone   then fit everything together first... then take 1 section apart a little and apply...then do the next fitting..... and next.... then  out a small dap of silicone somewhere visible    ...when the dab is dry then you can run the water

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I have to replace the J bend pipe under my sink. It basically broke apart. I can't get the nut off of the pipe?

2 Answers