APEC Water PHPLUSKIT-14 cartridge is a super high capacity, naturally occurring pH increaser. It is for general drinking water pH increase purposes. It can also be used as a reverse osmosis polisher if desired (installed at the last stage). since it is sacrificial, the calcite acid cartridge will add 2-5 ppm of hardness to the water. This is also an excellent way to reduce the corrosiveness of low TDS water. This filter is constructed from FDA grade materials and media. This calcite filter will deliver a neutral effluent from the acidic feed as low as pH5. Low pHs require slower flow rates. 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. Upon contact with calcite, acidic water slowly dissolves the calcium carbonate to raise the pH.
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