How to Turn Off the Water Supply Below Your Kitchen Sink: A Step-by-Step Guide for Homeowners

Turning off the water supply below your kitchen sink is a crucial skill for homeowners, especially when carrying out repairs or maintenance. This guide will provide clear steps to help you safely shut off the water supply.

Step 1: Locate the Shut-Off Valves

Under your kitchen sink, you should find one or two shut-off valves—these are typically round or oval knobs. The valve on the right is usually for the hot water supply, while the left one is for cold water. If you're unsure, turn each one to see which water flow stops.

Step 2: Turn Off the Valves

To turn off the water, rotate the valve clockwise until it can’t turn anymore. Ensure it’s fully closed by giving it a gentle twist. This should stop any water from flowing to the faucet.

Step 3: Test the Faucet

After turning off the valves, turn on the kitchen faucet to release any remaining water and verify that the water supply is indeed off. If water continues to flow, double-check that the valve is fully closed.

Step 4: Perform Your Maintenance

With the water supply turned off, you can now proceed with any repairs or maintenance tasks, such as fixing leaks or replacing the faucet.

Step 5: Turn the Water Back On

Once your work is complete, remember to turn the shut-off valves counterclockwise to restore the water supply. Again, test the faucet to ensure everything is functioning properly.

Safety Tips

Always keep a towel handy to wipe up any spills when working under the sink. If you encounter any issues while turning off the valves, such as corrosion or leaks, consider consulting a licensed plumber.

FAQ

Q: What if the shut-off valve is stuck?A: If the valve is difficult to turn, apply some penetrating oil and let it sit for a few minutes. Try again gently.

Q: How often should I check my shut-off valves?A: It’s a good idea to check your shut-off valves annually to ensure they are functioning properly.