Calcite

Calcite is a calcium carbonate media. Acidic waters will slowly dissolve the calcium carbonates to raise the pH which reduces the potential of copper, lead and other metals found in typical pluming systems. Backwashing will prevent packing, reclassify the bed and maintain high service rates. Depending upon pH, water chemistry and service flow rate, your calcite filter will have to be periodically replenished as the calcite is depleted.

Advantages

• Naturally occurring material

• Low uniformity coefficient for maximum contact for controlled pH correction

• Slower reacting for controlled pH correction

• Inexpensive

Physical Characteristics

• Color: near white

• Bulk Density: 90 lbs./cu. ft.

• Specific Gravity: 2.7

• Effective Size: .40 mm

• Uniformity Coefficienty: 1.5

• Mesh Size: 16 x 40

• Hardness: 3.0 (Mohs scale)

Operational Specifications

• Water pH range: 5.0 – 7.0

• Bed depth: 24 – 30 in.

• Freeboard: 50% of bed dept

• Service flow rate: 3 - 6 gpm/sq. ft.

• Backwash flow rate: 8 – 12 gpm/sq. ft.

• Backwash expansion rate: 35% of bed depth