Sink Water Supply Valve Leaking

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.

Sink water supply valve leaking.

They are usually located where the water pipe enters the room such as behind the toilet or under the sink. To do this turn on one faucet at a time until you can find out which supply line is leaking water. That inactivity can cause the neoprene washers to become either brittle or crusted up with mineral deposits and they lose their ability to seal leaks. It may just be excess water left over remove all the water so it is 100 dry.

Water supply valve under kitchen sink faucet is leaking how to fix. These inexpensive little valves rarely get used and when they do sometimes they leak. However calling a plumber can be expensive. The plumbing supply shutoff valves behind toilets or under sinks can go for years without being turned off and then reopened again.

First shut off the water to the leaking water valve. Unless the leak is obvious such as water squirting out from a connection or visibly dripping off of a supply valve you will need to find it. Wipe down the supply line with a. Remove the old washer and slide on the new one.

Next remove the handle from the stem and then loosen and remove the packing nut. 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. Most sinks have a hot and cold water supply line. Supply stop valves primarily control water flow to household plumbing fixtures.

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. Reinstall the packing nut tighten lightly with a wrench don t over tighten at this or any other point and reattach the handle. This allows easy water shut off to the fixture for maintenance and repair without having to turn water off to the entire home. Also place an empty bucket underneath the sink to catch any water that may spill out while working on the plumbing of your sink.