Replace Water Valve Under Sink

A leaky water valve under the sink can waste a lot of water and cause damage to your home. Replacing the valve is a relatively simple task that can be done in a few hours. Here are the steps on how to replace a water valve under the sink:

Step 1: Turn off the water supply

The first step is to turn off the water supply to the sink. There will be two shut-off valves under the sink, one for the hot water and one for the cold water. Turn both valves clockwise to turn off the water.

Step 2: Open the faucet

Once the water supply is turned off, open the faucet to release any remaining water in the line. This will help to prevent water from leaking out when you remove the valve.

Step 3: Disconnect the water supply lines

Use a wrench to disconnect the water supply lines from the valve. There will be two nuts that need to be loosened, one for the hot water line and one for the cold water line.

Step 4: Remove the old valve

Once the water supply lines are disconnected, you can remove the old valve. Grab the valve with a wrench and turn it counterclockwise to remove it from the pipe.

Step 5: Install the new valve

Apply a small amount of plumber's putty to the threads of the new valve. Then, screw the new valve onto the pipe by hand. Once the valve is hand-tight, use a wrench to tighten it further.

Step 6: Reconnect the water supply lines

Reconnect the water supply lines to the new valve. Tighten the nuts on the water supply lines with a wrench.

Step 7: Turn on the water supply

Turn on the water supply to the sink by turning the shut-off valves counterclockwise. Check for leaks around the new valve. If there are any leaks, tighten the nuts on the water supply lines further.

Step 8: Test the valve

Turn on the faucet and let the water run for a few minutes. Check for leaks around the new valve. If there are no leaks, the valve is installed correctly.