How To Remove And Replace Undermount Bathroom Sink

How to Remove and Replace an Undermount Bathroom Sink

Replacing an undermount 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 yourself the cost of hiring a plumber. ### Tools and Materials * Adjustable wrench * Basin wrench * Bucket * Caulking gun * Caulking * New undermount sink * Plumber's putty * Utility knife * Flashlight ### Safety Precautions * Turn off the water supply to the sink. * Open the faucet to release any remaining water in the lines. * Wear safety glasses and gloves when working with tools. ### Step 1: Remove the Old Sink * Use the adjustable wrench to loosen the nuts holding the sink to the countertop. * Carefully lift the sink out of the opening. * If the sink is sealed with caulk, use the utility knife to cut the caulk around the edges of the sink. ### Step 2: Clean the Countertop * Remove any old caulk or sealant from the countertop. * Clean the surface of the countertop with a damp cloth. ### Step 3: Apply Plumber's Putty * Roll out a rope of plumber's putty and place it around the rim of the new sink. * Smooth the putty with your fingers to create a seal. ### Step 4: Install the New Sink * Carefully lift the new sink into the opening in the countertop. * Align the sink with the faucet and drain holes. * Tighten the nuts holding the sink to the countertop. ### Step 5: Reconnect the Faucet and Drain * Connect the faucet and drain to the sink. * Use the basin wrench to tighten the nuts on the faucet and drain. ### Step 6: Seal the Sink * Apply a bead of caulk around the edges of the sink where it meets the countertop. * Smooth the caulk with your finger or a damp cloth. ### Step 7: Turn on the Water Supply * Turn on the water supply to the sink. * Check for leaks around the sink and faucet. * If you find any leaks, tighten the nuts or reapply caulk as needed. Congratulations! You have successfully removed and replaced your undermount bathroom sink.