Sink Supply Valve Leak

The hot and cold water supply under the sink is turned off at the valves.

Sink supply valve leak.

Fortunately a bad shut off valve is extremely easy to replace. After you are done fixing your leaky water shutoff valve check out how to fix a leaky shutoff with a supply valve piggyback. Open the faucet to drain the line. The cold water supply line from the wall is dripping water slowly.

I am replacing the faucet in my kitchen. At this point if water is still exiting the valve it will need replacement. 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.

Unscrew the handle the packing nut and the threaded valve stem photo 2. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured. I have the faucet installed in the sink but not connected to the hot and cold water. Turn off the next valve up the line which may be the main water supply valve.

Deburr the pipe with a deburring tool. If the leak persists before replacing the entire valve try this. Place a bucket under the old valve. 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.

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. As the line fills watch out for leaks. These inexpensive little valves rarely get used and when they do sometimes they leak. Water valve cutaway showing packing washer.

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. Required tools for this project. Faulty seals are easily detected.

How to fix a leaky kitchen sink at the supply line.