Replacing Hot Water Valve Under Bathroom Sink

Shut off the water supply.

Replacing hot water valve under bathroom sink.

Then shut off the upper and lower faucets. I am replacing the faucet in my kitchen. Open the faucet to drain the line. Close the new valve.

Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. Start by wearing plastic gloves. Check the new valves for leaks. Fortunately a bad shut off valve is extremely easy to replace.

At this point if water is still exiting the valve it will need replacement. Move the faucet handle to ensure that the last drops of water are also drained out. Replacing a bathroom sink valve is rather easy. 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. With a few household tool. Then open the water main shutoff valve and let the water run until all the air is out of the pipes. You may have a built in cabinet under the sink and the valves are generally located in it.

Place a bucket under the old valve. Turn off the next valve up the line which may be the main water supply valve. When cutting the supply line cut slowly and gently so. 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.

These inexpensive little valves rarely get used and when they do sometimes they leak. My water supply valve under the kitchen sink leaks. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured. 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.

Locate the main water supply valve that is usually located under the skin. 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. Deburr the pipe with a deburring tool. If this happens to you you can simply replace the valve with a new valve that matches the old one.

I have the faucet installed in the sink but not connected to the hot and cold water. As the line fills watch out for leaks. The hot and cold water supply under the sink is turned off at the valves.