Hello everyone. This is my first post. I have a bit of a dilemma and I hope some of you experienced knowledgeable folks can advise me. Over the weekend the brass trap under my bathroom sink crumbled apart to the point where the threads of the brass 1 1/4 tube coming from the sink stayed, but everything else fell apart. The threads of the brass tube going down to the floor also crumbled. I cleaned the spot where the long tube runs to the floor and discovered a previous owner or repair person soldered the tube into another pipe below. I expected a compression fitting there, but nope. Where the fitting is supposed to be, there is a rather thick wafer of solder. I'm a little reluctant to take a torch to it. I can take a picture tonight and post it if that will help visualize the problem. What can I or should I do? Is this sort of thing common?