Calcite
£33.00
Calcite is the most common form of naturally occurring calcium carbonate (white marble) which is crushed and screened. It is used to neutralise acidic water. Depending on pH and other parameters Calcite will be exhausted after some time and needs to be replenished.
Features
• Naturally occurring material
• Low uniformity coefficient for maximum contact for controlled pH correction
• Slower reacting for controlled pH correction
• Inexpensive
General Conditions for Installation
• 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: 12% minimum
• Service flow rate: 3-6 gpm/sq. ft. but may be modified to adapt to local conditions
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