How To Find A Hidden Leak in the Bathroom?
I live on the second floor of a two story home and recently had my kitchen drain cleaned by a plumber using an electric drain cleaning snake. Everything seemed to be fine until a few weeks later when the people on the first floor c/o some water coming through their bathroom ceiling. Not much but it has happened twice over last 2 months. I believe it may have been caused by the electric snake but 2 plumbers that have come don't seem to feel that way. I requested they put a hole in the wall/first floor ceiling and use a pipe snake camera to see if they could detect the leak but they were very reluctant to do it and did not do it. One replaced a toilet ring but that apparently was not the issue. Does anyone have any ideas on how to find the source of the leak? I would hate to remove the first floor ceiling without knowing where the leak is although I realize it may be the only way. Any advice appreciated.