Hi, in my two homes, all the shutoff valves are either leaking while turned off or leaking while turning. All the valves are those where the shutoff valves themselves are with a transparent oval handle, and the tubes in grey solid plastic.
Question 1: Is there any way to fix the valves? Do I need to replace all of them?
If I have to replace them, there is another question.
Question 2: The valves were soldered to the copper pipe and if I cut off the soldered part, there is not much copper pipe left for me to maneuver a compression nut. In addtion, there is left-over sloder on the limited copper pipe. How to get rid of the left-over solder? Do I just sneak in a compression nut even if it is very hard to add it on a small distance of copper pipe?
Thanks a lot!!