Replacing Hot Water Valve Under Bathroom Sink

Check the new valves for leaks.

Replacing hot water valve under bathroom sink.

Close the new valve. 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. The cold water supply line from the wall is dripping water slowly. Replacing a bathroom sink valve is rather easy.

Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured. Locate the main water supply valve that is usually located under the skin. These inexpensive little valves rarely get used and when they do sometimes they leak.

Look under the sink for the two turnoff valves one each for the hot and cold water faucets. As the line fills watch out for leaks. Turn off the next valve up the line which may be the main water supply valve. Deburr the pipe with a deburring tool.

Open the faucet to drain the line. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes. Then open the water main shutoff valve and let the water run until all the air is out of the pipes. If this happens to you you can simply replace the valve with a new valve that matches the old one.

Move the faucet handle to ensure that the last drops of water are also drained out. Fortunately a bad shut off valve is extremely easy to replace. My water supply valve under the kitchen sink leaks. I am replacing the faucet in my kitchen.

Then shut off the upper and lower faucets. It is always better to replace them. You may have a built in cabinet under the sink and the valves are generally located in it. 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.

The hot and cold water supply under the sink is turned off at the valves. 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. 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. With a few household tool.

When cutting the supply line cut slowly and gently so. Place a bucket under the old valve. I have the faucet installed in the sink but not connected to the hot and cold water.