Replacing Hot Water Valve Under Bathroom Sink

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.

Replacing hot water valve under bathroom sink.

Close the new valve. 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. These inexpensive little valves rarely get used and when they do sometimes they leak.

I have the faucet installed in the sink but not connected to the hot and cold water. Then open the water main shutoff valve and let the water run until all the air is out of the pipes. Move the faucet handle to ensure that the last drops of water are also drained out. Place a bucket under the old valve.

Deburr the pipe with a deburring tool. The cold water supply line from the wall is dripping water slowly. 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. At this point if water is still exiting the valve it will need replacement.

Look under the sink for the two turnoff valves one each for the hot and cold water faucets. It is always better to replace them. Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured. Replacing a bathroom sink valve is rather easy.

I am replacing the faucet in my kitchen. The hot and cold water supply under the sink is turned off at the valves. 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. When cutting the supply line cut slowly and gently so.

If this happens to you you can simply replace the valve with a new valve that matches the old one. Check the new valves for leaks. Then shut off the upper and lower faucets. As the line fills watch out for leaks.

Shut off the water supply. You may have a built in cabinet under the sink and the valves are generally located in it. Turn the water heater gas valve back to on or flip on the circuit breakers to the electric water heater. Turn off the next valve up the line which may be the main water supply valve.

Start by wearing plastic gloves. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes. Open the faucet to drain the line.