Replace Water Valve Under Sink

Check the new valves for leaks.

Replace water valve under sink.

The water to a kitchen or bathroom sink is supplied through small copper or flexible neoprene tubes from a small control valve called a stop or shut off valve under the sink. Shut off water supply. I am replacing the faucet in my kitchen. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes.

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. Place a bucket under the old valve. Cut fit and securely attach shut off valve to existing water supply line. Then shut off the upper and lower faucets.

Demolition and wall floor ceiling surface restoration is extra if needed. Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. Verify leak free installation and operation. With a few household tool.

Deburr the pipe with a deburring tool. I have the faucet installed in the sink but not connected to the hot and cold water. Close the new valve. The hot and cold water supply under the sink is turned off at the valves.

Turn off the next valve up the line which may be the main water supply valve. These inexpensive little valves rarely get used and when they do sometimes they leak. Basic labor to install water shut off valve with favorable site conditions. 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. How to remove your plastic flowtite valve under the sink these valves and hoses need to be replaced if your home was built 10 to15 years ago. When cutting the supply line cut slowly and gently so. Place valve in accessible location.

There are two basic types straight stops and angle stops and these valves normally remain on and are seldom closed functioning maintenance free for years. If this happens to you you can simply replace the valve with a new valve that matches the old one.