HOME PRODUCTS MAINTENANCE GUIDES PARTNERS R&D COMPANY INFO CALCITE® Calcite® is a crushed screened white marble media which can inexpensively be used to neutralize acidic or low pH waters to a ne DESCRIPTION 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 overcorrect under normal conditions. Upon contact with Calcite, 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 backwashing 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. (back to top) ADVANTAGES Naturally occurring material Low uniformity coefficient for maximum contact for controlled pH correction Slower, reacting for controlled pH correction Inexpensive (back to top) PHYSICAL PROPERTIES Color: Near white Bulk Density: 90 lbs./cu. ft. Mesh Size: 16 x 40 Specific Gravity: 2.7 Effective Size: 0.4 mm Uniform Coefficient: 1.5 Hardness: 3.0 (Mohs scale) Composition: CaCO3′ 95% min. MgC03′ 3.0% max. (back to top) CONDITIONS FOR OPERATION A gravel support bed is recommended Water pH range: 5.0-7.0 Bed depth: 24-30 in. Freeboard: 50% of bed depth (min.) Backwash rate: 8-12 gpm/sq. ft. Backwash Bed Expansion: 35% of bed depth Service flow rate: 3-6 gpm/sq. ft. but may be modified to adapt to local conditions (back to top) FLOW RATE Service Flow Pressure Drop and Backwash Bed Expansion charts to be added later. Check back for updates. (back to top) ORDER INFORMATION Part No. A8021-01 Description: Calcite Cu.Ft./Bag: .55 (50 lbs.) Wt./Cu.Ft.*: 90 lbs. Bags/Pallet: 49 Weight/Pallet: 2486 lbs. Pallet Dim. 48″x40″x32″ (back to top) STANDARDS Tested and listed under ANSI/NSF Standard 61 for Health Effects. (back to top) Post navigation Corosex® → ←Birm® Copyright © 2019 Performance Water Products. All Right Reserved