Replacing Hot Water Valve Under Kitchen Sink

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

Replacing hot water valve under kitchen sink.

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. I am replacing the faucet in my kitchen. The shut off valve under a sink can go unattended for years without giving any problems but once it starts leaking it can lead to a mess quickly.

Turn off the main water supply for the house. When cutting the supply line cut slowly and gently so. Ignoring minor leaks can waste up to three gallons of water every day and can also lead to permanent water stains and rot under your sink. 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.

To replace a shut off valve in the kitchen sink you need to locate the valves that turn the water supply on or off. The shut off valves are easy to spot. Put a bucket under the drain pipe. With a few household tool.

Open the faucet to drain the line. These inexpensive little valves rarely get used and when they do sometimes they leak. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes. Deburr the pipe with a deburring tool.

You should see a large pipe usually made of pvc that has a vertical bend in it before running horizontally to the back wall or rarely down to the floor. The cold water supply line from the wall is dripping water slowly. 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. Open the cabinet below the sink and remove anything stored there.

Look for two sets of valves that have oval shapes. I have the faucet installed in the sink but not connected to the hot and cold water. Typically there are two shut off valves installed underneath the kitchen sink. Turn off the next valve up the line which may be the main water supply valve.

Place a bucket under the old valve. One for the hot water supply and the other for the cold. Start with the kitchen sink shutoff valve turn the taps to the off position.