Acid-neutralizing Filters

Acid-neutralizing filters are used to reduce water acidity. They add crushed calcite or some other carbonate-based mineral at controlled rates to raise the water’s pH and decrease corrosivity. The water to be treated must be low in tannins and free of oil. The filter media must be replaced periodically. Backwashing is recommended to remove trapped particles and oxidized metals unless a sediment filter is installed ahead of the unit.