shutoff valves all leaking

hohadcr

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!!

buddy builder

if you backseat (all the way on) and it stopped then i would let the tiger sleep. if you turn them off as you would a beach house when you leave and it still leaks then you need to fix them. if there is a nut right under the knob you turn off then you can open the valve half way, loosen the nut and take it off and see what you need to fix it. if it is an older valve i will take a small thread of a mop string and form a sealer with it to go around the stem. this is an old plumber trick in a tight spot. also, an old trick is if you have a problem loosening a nut, then tighten it ever so slightly and that little bit usually breaks the seal enough to then loosen the nut. thanks, buddy builder