Replace Water Valve Under Sink

Place valve in accessible location.

Replace water valve under sink.

I am replacing the faucet in my kitchen. Demolition and wall floor ceiling surface restoration is extra if needed. 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. Turn off the next valve up the line which may be the main water supply valve.

Basic labor to install water shut off valve with favorable site conditions. Open the faucet to drain the line. The cold water supply line from the wall is dripping water slowly. With a few household tool.

Check the new valves for leaks. 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. Close the new valve. I have the faucet installed in the sink but not connected to the hot and cold water.

If this happens to you you can simply replace the valve with a new valve that matches the old one. 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. Then open the water main shutoff valve and let the water run until all the air is out of the pipes. The hot and cold water supply under the sink is turned off at the valves.

Verify leak free installation and operation. Deburr the pipe with a deburring tool. Then shut off the upper and lower faucets. 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.

Cut fit and securely attach shut off valve to existing water supply line. Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. My water supply valve under the kitchen sink leaks. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes.

When cutting the supply line cut slowly and gently so. 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.