EverClean System & EverClean Surface American Standard whirlpools and air baths come standard with our exclusive EverClean system. It's a system that helps keep itself clean longer. The system incorporates a permanent glaze additive right into the circulation piping to protect the pipes from mold, mildew, algae and fungus that could cause deterioration or staining of the pipes. On toilets the super smooth mirror like EverClean™ surface is easier to keep clean, even after years of use. That means you spend less time cleaning and more time enjoying.