I am trying to remove a P trap under a bathroom sink however it is connected via pin with no screw joint to what appears to be a separate overflow line. Any help on how to remove without cutting the pipes would be much appreciated. Picture attached:
the fernco is the best way to fix this. It is a rubber fitting that uses a hose clamp to fasten each end of the pipes together. Very user friendly and makes future replacements easier. Any hardware or lumber yard or box store or plumbing supply house will have them. If you want to glue new pieces together you need pvc primer and pvc glue.