Sink Supply Valve Leak

I am replacing the faucet in my kitchen.

Sink supply valve leak. These inexpensive little valves rarely get used and when they do sometimes they leak. As the line fills watch out for leaks. My water supply valve under the kitchen sink leaks. Cut the supply line with a pipe cutter leaving enough room between the escutcheon plate and the cut to allow installation of the valve fitting.

The hot and cold water supply under the sink is turned off at the valves. At this point if water is still exiting the valve it will need replacement. Unscrew the handle the packing nut and the threaded valve stem photo 2. Water valve cutaway showing packing washer.

After you are done fixing your leaky water shutoff valve check out how to fix a leaky shutoff with a supply valve piggyback. If there is a leak coming from a supply line connection to the faucet or from the hot and cold water on and off valves it is probably related to a. When cutting the supply line cut slowly and gently so. I have the faucet installed in the sink but not connected to the hot and cold water.

The supply lines leading to the kitchen sink both hot and cold begin at a water supply valve and end at the faucet supply tube that is. Open the faucet to drain the line. The cold water supply line from the wall is dripping water slowly. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured.

Turn off the next valve up the line which may be the main water supply valve. If the leak persists before replacing the entire valve try this. Fortunately a bad shut off valve is extremely easy to replace. If this happens to you you can simply replace the valve with a new valve that matches the old one.

Under sink shutoff valves also called fixture shutoffs or stop valves allow you to turn off the water to the sink or other fixture without having to use the home s main shutoff. To replace the packing washer remove the handle and packing nut. Turn off the water at the house s main shutoff then disassemble the problematic shutoff valve without disconnecting the valve from either the water supply line or the line leading to the toilet. Deburr the pipe with a deburring tool.

Required tools for this project.