Phosphates help maintain water quality by inhibiting corrosion and scale, and also assist in reducing copper and lead levels. Polyphosphates and Orthophosphates are two general types used in water treatment. Polyphosphates are sequestering agents that remove “red water” from source supplies, as well as stabilize iron, manganese, and calcium in potable water systems. Polyphosphates are multipurpose in application, as they stabilize water systems to minimize or prevent scale and iron deposits in system piping where pre-existing deposits occur. Orthophosphates are anodic corrosion inhibitors that are commonly used in potable water systems. They effectively inhibit corrosion of carbon steel, lead, and copper. They are often used to reduce lead solubility by the formation of a lead orthophosphate film. This allows for less lead contamination and reduces maximum contaminant levels (MCL’s) for regulatory requirements. TKPP – Tetrapotassium Pyrophosphate (Polyphosphate) Sequestering agent that removes “red water” from source supplies, as well as stabilize iron, manganese, and calcium in potable water systems. * Available in Granular & 60% Liquid. SHMP Sodium Hexametaphosphate (Polyphosphate) Excellent system stabilizing treatment that prevents red water and scale accumulation. * Available in Granular & 40% Liquid. MSP – Monosodium Phosphate (Orthophosphate) Food Grade Powder; Used as a Quality Improving Agent. * Liquid Solution Available.