Step 1 · Preparation and Removal of Old Sink
Begin by preparing the workspace. Place a bucket under the existing sink's P-trap to catch residual water. Use an adjustable wrench to turn the hot and cold water shut-off valves clockwise until they are fully closed. Turn on the faucet to release any remaining pressure and water. Use channel-lock pliers or an adjustable wrench to disconnect the hot and cold water supply lines from the shut-off valves. Next, disconnect the P-trap from the sink's tailpiece and the drainpipe in the wall. If there is a vanity, it will need to be removed. Carefully cut the caulk seal along the backsplash and sides with a utility knife. Locate and remove the screws securing the old sink or vanity to the wall. With the help of another person, lift the old sink and vanity away. Thoroughly clean the wall and floor area where the new sink will be installed, removing any old caulk or adhesive.