Step 4 · Clean the Sink Surface
With the old faucet removed, use a plastic putty knife to gently scrape away any old plumber's putty or sealant from the sink surface. Spray the area with an all-purpose cleaner or a mineral deposit remover and scrub thoroughly with a non-abrasive scrub sponge. Wipe the area clean and dry it completely with paper towels. A clean, smooth surface is essential for the new faucet to seal properly.