I have been changing the valves under my sink and I was wondering what is the best course of action?
I've attempted to remove the ferrule on two of the pipes and it wouldn't come off. (I had no tool for it). I ended up reusing it with a new valve and had no leaks. Is this going to be okay?
As an alternative, I cut the other two pipes behind the nut that hugs the ferrule. This made the pipes shorter but I still had about 2-3 fingers of pipe to mount a new ferrule and the rest of the valve. No leaks there either.
I know also that I could have removed the ferrule using a tool but all of them were too tight. On those that I cut the copper was dented towards its inner part.
I just want to make sure of the correct choice when replacing a compression valve.
Also, I was wondering, what happens when a pipe ends up being too short for a compression valve? Can it be extended using a 1 inch copper pipe sweated on and then add a compression valve?