Cleaning a Nickel Faucet Use a damp a soft rag with warm soapy water. Wipe the faucet from handles to base with the damp rag. Pay close attention to the underside of the handles and spigot and around the base, which are areas where soap residue and mineral deposits can collect. Rinse the rag with plain water and wipe the soap off the faucet. Buff the faucet with a dry cotton cloth until the soap is removed and the nickel shows no water spots. Be very careful as Nickel can scratch easily. For harder areas mix equal parts white vinegar and water in a small spray bottle. Spray the solution directly on mineral deposits, which look white and crusty. Spray around the base of the fixtures as well, where water often accumulates and may lead to mineral deposits. Allow the solution to sit for 5 to 10 minutes, and then wipe away with a damp sponge. Dry the fixture with a soft cloth afterward.