Originally Posted by oldognewtrick
If it's copper, why can't you cut the pipe, slide a union on and solder the joint?
I think it is a pinhole leak in the copper pipe. The copper pipe is under a wall that I can only get to by digging a small trench under the foundation through a 8x12 inch hole in the foundation in the laundry room. It is very tight and I am limited on how far I can dig.
Unfortunately, I already know it will happen again as this was a very poor design. Basically, instead of using an elbow, the builder bent the pipe and poured the slab above it.
I really do not want to jack hammer the slab more than I have to as I live in earthquake country and do not want to weaken the slab more than I have to.
I am hoping that someone here knows some trick that will union a curved pipe with a straight pipe together without near future problems.
Thanks in advance.