How To Replace Bathroom Sink

How to Replace a Bathroom Sink

Replacing a bathroom sink is a relatively simple plumbing project that can be completed in a few hours. By following these step-by-step instructions, you can save the cost of hiring a plumber and have a new sink installed in no time.

Tools and Materials You'll Need:

New bathroom sink
Basin wrench or adjustable wrench
Putty knife
Plumber's putty
Faucet wrench or adjustable wrench
Caulk gun and bathroom caulk
Bucket or bowl
Safety glasses

Step-by-Step Instructions:

Step 1: Turn Off the Water Supply

Before you begin, it's important to turn off the water supply to the sink. Locate the shut-off valves beneath the sink and turn them clockwise to close them.

Step 2: Disconnect the Water Lines

Using a basin wrench or adjustable wrench, loosen the nuts that connect the water lines to the sink faucet. Be careful not to overtighten the nuts, as you could damage the lines.

Step 3: Remove the Old Sink

Place a bucket or bowl beneath the sink to catch any water that may leak out. Using a putty knife, carefully cut away the old plumber's putty around the base of the sink. Once the putty is removed, gently lift the sink up and out of its opening.

Step 4: Clean the Sink Opening

Use a damp cloth to clean the sink opening of any debris or old putty. This will help ensure a good seal for the new sink.

Step 5: Apply Plumber's Putty

Roll out a rope of plumber's putty and place it around the rim of the new sink, about 1/4 inch from the edge. Press the putty down firmly to create a seal.

Step 6: Install the New Sink

Carefully lift the new sink into place and align it over the opening. Slowly lower the sink onto the putty, pressing down gently to create a seal.

Step 7: Reconnect the Water Lines

Reconnect the water lines to the faucet by hand-tightening the nuts. Use a wrench to further tighten the nuts, but avoid overtightening.

Step 8: Caulk the Sink

Apply a bead of bathroom caulk around the seam between the sink and the countertop. Use a damp finger to smooth out the caulk and create a waterproof seal.

Step 9: Turn On the Water Supply

Turn on the shut-off valves beneath the sink to restore the water supply. Check for any leaks around the sink or water lines and tighten any connections that may be loose.

Tips:

If you encounter any leaks, try tightening the connections or applying additional plumber's putty.
Be careful not to damage the sink or countertop when installing the new sink.
Use a level to ensure that the sink is installed level.
Consider hiring a plumber if you are not comfortable performing the installation yourself.