Water Shut Off Valve Under Kitchen Sink

Turn off the next valve up the line which may be the main water supply valve.

Water shut off valve under kitchen sink. Start with the kitchen sink shutoff valve. 1 2 nom x 3 8 od comp. 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.

These inexpensive little valves rarely get used and when they do sometimes they leak. 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. You will need to turn the main water valve off to your home if you replace the cold water valve under your kitchen sink. If you see water leaking out this means the valve is leaking.

Check the valve very carefully for about 30 minutes with a flashlight and if you find it is leaking then remove and replace it. Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes. This allows easy water shut off to the fixture for maintenance and repair without having to turn water off to the entire home. Its purpose is to shut off the fluid flow in one pipe while opening fluid flow in another pipe.

Open the faucet to drain the line. Place a bucket under the old valve. It is very common for this to happen. They are usually located where the water pipe enters the room such as behind the toilet or under the sink.

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. Deburr the pipe with a deburring tool. With a few household tool. 1 4 turn mm fv 001 4 4 out of 5 stars 113 9 99 9.

At home they re typically used under kitchen sinks that have a hot and cold water supply system. Supply stop valves primarily control water flow to household plumbing fixtures. Turn the taps to the off position. This is the sink drain pipe.