How To Install A Bathroom Sink Drain Assembly

Installing a bathroom sink drain assembly is a relatively simple plumbing task 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.

Materials You'll Need:

New drain assembly
Adjustable wrench
Plumber's putty
Flashlight
Bucket

Step-by-Step Instructions:

Step 1: Remove the old drain assembly. Place a bucket under the sink to catch any water that may leak out. Use an adjustable wrench to loosen the slip nut that holds the drain assembly in place. Once the slip nut is loose, you should be able to pull the old drain assembly out of the sink.

Step 2: Clean the drain hole. Use a flashlight to inspect the drain hole and remove any debris or old sealant. Apply a bead of plumber's putty around the base of the new drain assembly. This will help to create a watertight seal.

Step 3: Insert the new drain assembly. Align the new drain assembly with the drain hole and insert it into the sink. Hand-tighten the slip nut until it is snug. Use the adjustable wrench to tighten the slip nut another 1/4 to 1/2 turn. Do not overtighten the slip nut, as this could damage the sink.

Step 4: Install the tailpiece. The tailpiece is the curved pipe that connects the drain assembly to the P-trap. Insert the tailpiece into the drain assembly and hand-tighten the nut. Use the adjustable wrench to tighten the nut another 1/4 to 1/2 turn.

Step 5: Install the P-trap. The P-trap is the U-shaped pipe that prevents sewer gases from entering the sink. Insert the P-trap into the tailpiece and hand-tighten the nuts. Use the adjustable wrench to tighten the nuts another 1/4 to 1/2 turn.

Step 6: Test the drain. Turn on the water and allow it to run for a few minutes. Check for any leaks around the drain assembly, tailpiece, or P-trap. If you see any leaks, tighten the corresponding nuts until the leak stops.

Congratulations! You have now successfully installed a bathroom sink drain assembly.