Step 5 · Clean the Mounting Surface

After removing the old faucet, thoroughly clean the top surface of the tub deck around the mounting holes. Use a plastic putty knife to gently scrape away any old plumber's putty or sealant residue. Then, use an all-purpose cleaner and rags to wipe the area clean. A pristine surface is essential for the new faucet to seal correctly and prevent leaks.