Installing Kitchen Sink Drain Plumbing

Installing a kitchen sink drain is a relatively simple plumbing project that can be completed in a few hours. By following these step-by-step instructions, you can save yourself the cost of hiring a plumber.

Tools and Materials You'll Need:

Adjustable wrench
Plumber's putty
Slip-joint pliers
Basin wrench
Teflon tape
New drain assembly
Garbage disposal (optional)

Step 1: Remove the Old Drain Assembly

Start by turning off the water supply to the sink. Then, use an adjustable wrench to loosen the nuts that hold the drain assembly in place. Once the nuts are loose, you can remove the old drain assembly by pulling it straight up.

Step 2: Clean the Drain Hole

Once the old drain assembly is removed, take a few minutes to clean the drain hole. Use a damp cloth to wipe away any dirt or debris. You can also use a small brush to clean the threads of the drain hole.

Step 3: Apply Plumber's Putty

Apply a bead of plumber's putty around the base of the new drain assembly. The plumber's putty will help to create a watertight seal between the drain assembly and the sink.

Step 4: Install the New Drain Assembly

Insert the new drain assembly into the drain hole. Turn the drain assembly until it is snug. Do not overtighten the drain assembly, as this could damage the sink.

Step 5: Install the Garbage Disposal (Optional)

If you are installing a garbage disposal, now is the time to do so. Attach the garbage disposal to the drain assembly according to the manufacturer's instructions.

Step 6: Connect the Water Supply Lines

Reconnect the water supply lines to the sink. Use Teflon tape to seal the connections. Turn on the water supply and check for leaks.

Step 7: Test the Drain

Run water into the sink and check for leaks. If there are no leaks, your new kitchen sink drain is installed correctly.

Tips:

If you are not comfortable working with plumbing, it is best to hire a plumber to install your kitchen sink drain.
Do not use excessive force when tightening the nuts on the drain assembly. Overtightening could damage the sink.
Make sure to use Teflon tape on all of the connections to prevent leaks.