My RV is a 30 year old Wanderlodge. The material that needs fixing is black so must be ABS..I guess.
Got some JB Weld Waterweld today. Am going to give it a try tomorrow and see what happens.
I first have to FIND the exact spot where it is leaking. Will be a MESSY job, I am sure. The inside of the pipe will be wet as there is no way that I can get inside.
If that doesn't work, I'll try some of the other suggestions. Just hoping to KISS if I can..but that seems to NEVER be the case, now doesn't it.