SC-1000 Scale Control & Metal Chelant is a proprietary, patent pending, non-phosphorus containing aqueous formulation for control of carbonate scale and metals staining in recreational water systems.Applied as directed, SC-1000 is compatible with materials of pool and spa construction, and other treatment chemicals applied in accordance with the manufacturer's recommendations. SC-1000 is especially effective at controlling saltwater generator (SWG) electrode scale formation without contributing orthophosphates to the water which inhibit chlorine sanitation and act as nutrients for algae growth