To prevent buld up of dirt and contaminates, periodic cleaning is highly suggested. For normal cleaning, most stains can be easily cleaned using warm, soapy water and a clean rinse. Light scrubbing with a medium bristle brush will help loosen soiling material or for more stubborn stains, use Formula 409®in accordance to manufacturer's instructions. Note: Detergent should never be used on a regular or repeated basis for normal cleaning.