reply to NullQwerty
Re: Water Shut Off Valve Not Shutting Off Fully Despise those valves. Everytime I use them they still let water through to some degree. Even better are the ones that do nothing and then after turning start to leak out the stem. If there's ample pipe to cut those valves off and replace with a ball valve and you don't have to bend like a pretzel to solder them on I'd say go that route. Otherwise replace o-rings as suggested if the parts can be found.