Shut Off Valve Leaking Under Sink

A leaking shut-off valve under the sink is a common plumbing problem that can waste water and cause damage to your home. The shut-off valve is responsible for turning off the water supply to your sink, so if it's leaking, you'll need to fix it as soon as possible.

There are a few different ways to fix a leaking shut-off valve under the sink. The most common method is to replace the valve washer. The washer is a small rubber or plastic disc that sits inside the valve and creates a seal against the valve seat. Over time, the washer can become worn or damaged, which can cause the valve to leak.

To replace the valve washer, you'll need to turn off the water supply to the sink and remove the handle from the valve. Once the handle is removed, you'll be able to access the valve washer. Use a screwdriver to remove the old washer and replace it with a new one.

If replacing the valve washer doesn't stop the leak, you may need to replace the entire valve. To do this, you'll need to turn off the water supply to the sink and disconnect the water lines from the valve. Once the valve is disconnected, you can unscrew it from the sink and replace it with a new one.

If you're not comfortable replacing the shut-off valve yourself, you can call a plumber to do it for you. However, replacing a shut-off valve is a relatively simple task that most homeowners can do themselves.

Here are some tips for preventing shut-off valves from leaking: