Sink Supply Valve Leak

Faulty seals are easily detected.

Sink supply valve leak. If this happens to you you can simply replace the valve with a new valve that matches the old one. As the line fills watch out for leaks. 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. Turn off the next valve up the line which may be the main water supply valve.

Unscrew the handle the packing nut and the threaded valve stem photo 2. 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. My water supply valve under the kitchen sink leaks. Water valve cutaway showing packing washer.

When cutting the supply line cut slowly and gently so. Open the faucet to drain the line. To replace the packing washer remove the handle and packing nut. 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.

Fortunately a bad shut off valve is extremely easy to replace. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured. At this point if water is still exiting the valve it will need replacement. After you are done fixing your leaky water shutoff valve check out how to fix a leaky shutoff with a supply valve piggyback.

The cold water supply line from the wall is dripping water slowly. Place a bucket under the old valve. I have the faucet installed in the sink but not connected to the hot and cold water. These inexpensive little valves rarely get used and when they do sometimes they leak.

Required tools for this project. 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. I am replacing the faucet in my kitchen. Deburr the pipe with a deburring tool.

If the leak persists before replacing the entire valve try this.