Why is water shut off valve dripping?
The packing nut is responsible for making a watertight seal where the valve stem meets the water line. So, if there is a leak at the valve stem, it most likely means the valve is not shut off all the way. The first thing you should do to stop the leak is to tighten the packing nut.
Can a water shut off valve go bad?
You can spend time rebuilding the old valve, but the problems will just reappear years from now. The best way to deal with bad valves is to replace them with modern quarter-turn ball valves. They rarely lock up, leak or wear out and best of all, they’ll take just an hour or so to install. Here’s how to put them in.
How do you fix a leaking toilet shut off valve?
Tighten the packing nut on the toilet shutoff valve one-eighth turn clockwise to try to seal a leak around the nut. Wrap cloth or masking tape on the plier’s jaws to protect the nut’s finish. Use light, steady pressure so you don’t damage the water lines.