Hi everyone. I need some info and advice. I have very minor "plumbing" experience, replacing appliances & supply lines, valves etc. Never really had any difficulties. I never did anything in the wall.
I knocked off a valve turner thing to the sink in my spare bath. It leaked for a while and has now trashed the vanity. We wanted to re-do that bathroom anyway.
So I go to take the faulty valve off of the copper stub out and it won't budge. Lots of tools, lots of new words for my kids to learn. I finally managed to break the face of the valve (where the turner was) and then made a puller and got the valve off. In doing this, I both bent and slightly squished the stub out, but not so much where the compression fitting rides. I got the new compression valve installed, and it is not leaking.
Finally, my questions: I know I moved the stuff inside the walls some. Is this generally trouble, or should there be some flexibility in the piping? Also, there is a copper plate (?) inside the drywall, between the drywall and the piping. What is that for? Do I need to hack into the drywall to check the stub out connection for cracks or ?? Should I call a pro and let them decide?