NO MORE RING AROUND THE SPA!
This environmentally friendly and powerful formula uses natural enzymes to remove and prevent oil build up in the water, on filter elements, and near the tile line. Regular use will prevent that ugly water-line ring and cut down on filter cleaning. Scum Out has no effect on water balance and doesn't require waiting before using the hot tub or spa. 100% biodegradable.
Initial dosage: 1 oz. per 500 gallons.
Weekly maintenance: 1/2 oz. per 500 gallons.