World

Step-by-Step Guide to Installing an Air Gap Under Your Kitchen Sink

How to Install an Air Gap Under the Sink

Installing an air gap under the sink is an essential step in ensuring the safety and functionality of your plumbing system. An air gap is a barrier that prevents contaminated water from flowing back into your drinking water supply, which is crucial for preventing the risk of cross-contamination. In this article, we will guide you through the process of installing an air gap under the sink, ensuring that you can enjoy clean and safe water in your home.

Materials Needed

Before you begin the installation process, gather the following materials:

– Air gap unit
– plumber’s tape
– plumber’s wrench
– adjustable wrench
– screwdriver
– plumber’s putty
– Teflon tape
– plumber’s grease
– gloves and safety goggles

Step 1: Turn Off the Water Supply

Before starting the installation, turn off the water supply to the sink. This will prevent any water from flowing during the installation process. Locate the shut-off valves under the sink and turn them clockwise to close them.

Step 2: Remove the Old Faucet and Piping

Next, remove the old faucet and piping. Use the adjustable wrench to loosen the nuts that connect the faucet to the sink. Once the nuts are loose, use the plumber’s wrench to remove the faucet. Be sure to disconnect the supply lines from the faucet and remove any remaining piping.

Step 3: Install the Air Gap Unit

Now it’s time to install the air gap unit. Place the air gap unit on the countertop and align it with the drain opening under the sink. Ensure that the unit is securely seated and that the drain opening is clear. Use plumber’s putty to seal the bottom of the air gap unit to the countertop.

Step 4: Connect the Supply Lines

Reconnect the supply lines to the air gap unit. Use Teflon tape on the threads of the supply lines to prevent leaks. Hand-tighten the nuts and then use the adjustable wrench to tighten them further. Apply plumber’s grease to the threads of the nuts for added protection against leaks.

Step 5: Install the Faucet

Now, install the new faucet onto the air gap unit. Attach the faucet to the air gap unit using the provided hardware. Ensure that the faucet is securely mounted and that all connections are tight.

Step 6: Test the Installation

Turn the water supply back on and test the installation. Run the faucet to check for any leaks. If you notice any leaks, turn off the water supply and tighten the connections until the leaks are stopped.

Step 7: Clean Up and Final Touches

Once you have confirmed that the installation is leak-free, clean up any excess plumber’s putty or grease. Ensure that the area under the sink is tidy and that all connections are secure.

Installing an air gap under the sink is a straightforward process that can help ensure the safety of your drinking water. By following these steps, you can install an air gap with confidence and enjoy clean, safe water in your home.

Back to top button