Nelsen Calcite Filter Media (.55 cu. ft. bag);

Calcite media for acid neutralizer systems. Ships in bags of .55 cubic feet each, approximately 50#. Pure calcium carbonate (calcite) replacement media for ph neutralizers.ADVANTAGES OF CALCITE Naturally occurring material Low uniformity coefficient for maximum contact for controlled pH correction Slower reacting for controlled pH correction Inexpensive PROPERTIES Color: Off White / Grey Bulk Density: 90 lbs./cu. ft. Mesh Size: 16 x 40 Specific Gravity: 2.7 Effective Size: 0.4 mm Uniformity Coefficient: 1.5 Hardness: 3.0 (Mohs scale) CONDITIONS FOR OPPERATION 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. Replacement calcite media for residential acid neutralizer systems and commercial acid neutralizers. Pure calcium carbonate (calcite) media, shipped in a .55 cubic foot bag (approximately 50#)