I had a leak in my main house drain, from the upstairs to the basement. It only leaked when I flushed the toliet and the leak was where the PVC pipe was going into the cast iron pipe that was coming out of the floor in the basement. (to the sewer) I put sealer around the bad job of sealing someone else had done and that seemed to work - for awhile. Now it is leaking where the concrete is patched to the hole in the floor. In other words, the seam where they poured the concrete to fill the hole where the pipe comes out. I hope that makes sense.
To go on, I used SPEED SEEL, which is a plumbing, caulk sealer and was recommended by the hardware. That seemed to do the trick after a few applications, but once again, water always wins and I am back to it leaking again.
I am looking for suggestions as what to use and how to fix this problem short of calling a plumber. It seems that the SPEED SEEL has dried and lifted away from the flooring as well as the original area that I first repaired. I need something that will penetrate and fill the crack at the seam. By the way, I tried to use regular bathtub caulk, as a second defense, but that was useless. I appreciate any imput or a similar problem and remedy someone has encountered.
Thanks, jct