Use the maker's mild-soap approach

Kingston Brass recommends mild soap and nonabrasive cleaning for its fixtures, with a wipe dry after use. For a chrome product covered by these instructions, regular gentle cleaning is a better starting point than applying a metal polish simply because the surface looks shiny. Water left to accumulate can leave mineral deposits that dull the finish.

Keep the care restrictions with the product

The manufacturer warns against abrasive agents and sponges, as well as cleaners containing ammonia, bleach, acids, alcohol or solvents that are unsuitable for metallic finishes. Those restrictions should take priority over a generic stain-removal tip. The page also mentions periodic aerator cleaning because accumulated debris can reduce flow, a separate issue from a stained exterior. Refer to the literature supplied with the specific faucet before removing parts or adding any protective treatment. A clean-looking surface and good water flow are different maintenance goals, and neither requires ignoring the finish-care instructions.

Protect Kingston Brass chrome from residue and abrasion
Kingston Brass recommends mild soap and nonabrasive cleaning for its fixtures, with a wipe dry after use.