Calcite (calcium carbonate) is a filter media that is excellent in neutralizing acidic or low pH waters to a neutral level. We use this media in our acid neutralizing water systems that we make. This naturally occurring media is ideal for a controlled water pH correction and balance. These bags equate to .55 cubic foot.
Calcite is a naturally occurring calcium carbonate media. One of the advantages of Calcite is its self limiting property. When properly applied, it corrects pH only enough to reach a non-corrosive equilibrium. It does not over-correct under normal conditions. Calcite, in acidic waters, slowly dissolve the calcium carbonate to raise the pH which reduces the potential leaching of copper, lead and other metals found in typical plumbing systems. Periodic back-washing will prevent packing, reclassify the bed and maintain high service rates. Depending on pH, water chemistry and service flow, the Calcite bed will have to be periodically replenished as the Calcite is depleted. As the Calcite's calcium carbonate neutralizes the water, it will increase hardness and a softener may become necessary after the neutralizing filter. Calcite can be effectively combined with Clack Corosex to combine the high flow neutralization properties of Corosex, along with the slower reacting low flow properties of Calcite, increasing the ability to correct low pH.