CSR Plus® (Calcium Scale Remover Plus) is specifically formulated to remove calcium carbonate scale. CSR Plus is less corrosive than most acidic descalers. It removes calcium carbonate and other mineral deposits from filtration basins, troughs, clarifiers and other accessible water treatment plant surfaces and is also used to clean air stripper media as an alternative to costly media replacement. CSR Plus allows longer residence time on vertical or near-vertical surfaces.