I undid the P trap under my bathroom sink to clear a clog and now when I put the whole thing back together it leaks out of the top of the slip joint that connects the down pipe from the sink drain to the j-pipe. The down pipe is 1 - 1/4 and the j-pipe is 1-1/2 and I am using the correct reducer gasket. It was not leaking (and never had) before I took it apart. I have tried using a new gasket and teflon tape on the threads of the slip joint to no avail. Please give me some idea as to what the problem might be. Here is a link to a couple of pictures to show the general set-up and the specific problem: http://www.flickr /photos/sesquilia/?saved=1Thanks to anyone that can help.
RE: Need help with leak in P trap under bathroom sink? I undid the P trap under my bathroom sink to clear a clog and now when I put the whole thing back together it leaks out of the top of the slip joint that connects the down pipe from the sink drain to the j-pipe. The down pipe is 1 - 1/4 and the j-pipe is 1-1/2 and I am using the...
1 -Remove the nut and look up INTO the top of the nut and you will see the plastic washer. 2- Make sure the curve edge is pointing downward, if not pry it out and turn it around 3 - re-tighten the nut, but start it very careful since you can cross thread. 4- once you hand tighten, apply more pressure to make sure the nut has 'bottomed out with the gasket into the pipe. By having the curve part of the washer correct placed, it will seal the joing.
Just got through going at the same business with mine. The upper gasket at the bottom of the sink was my problem. Had to use a piece of toilet paper to find it. wrapped it around the pipe and found the water was coming down the back side of he upper pipe and looked like it was dripping from the connection as the first union. Give this a try, I would be really reluctant to use silicone should you need to take it apart again, it will be very difficult. If you have already replaced the parts, it has to be something else. The teflon tape is not doing you any good, but it is not harming either unless it is getting under the gasket. Also another thing that threw me off on mine with the rust which was occurring on the pipe, I thought the rust was getting on the gasket. If you have done your kitchen sink then you are not a novice at this and I suspect making your repairs correctly. I would look beyond the gasket. P.S, good pictures, really explains your situation well, and your description is well written.
