Calcite 15 x 52 Inch pH Correction Unit with Clack Valve – 45 LPM

Calcite 15 x 52 Inch pH Correction Unit with Clack Valve – 45 LPM ✓ pH Adjustment ✓ Corrosion Control ✓ Remineralization of Desalinated Water   Important Note: Please contact us before ordering to ensure the suitability of this product for your requirements. On private water systems, one of the most common causes... More description
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Calcite 15 x 52 Inch pH Correction Unit with Clack Valve – 45 LPM

✓ pH Adjustment
✓ Corrosion Control
✓ Remineralization of Desalinated Water
 
Important Note: Please contact us before ordering to ensure the suitability of this product for your requirements.

On private water systems, one of the most common causes of corrosion is low pH (< 7.0) waters. Treatment is accomplished by neutralizing the water – passing acidic water through granular calcium carbonate is the most common method utilized.

Calcite 15 x 52 Inch pH Correction Unit with Clack Valve - pH scale

Many forms of calcite media are available on the market. However, not all are safe for use in drinking water. Our unit uses Imerys’ calcium carbonate (calcite) that have been tested and certified by NSF International to NSF/ANSI Standard #60. 

Imerys’ NSF Certified Calcium Carbonate media, also known as calcite, is prepared from naturally occurring, high-quality marble. Common uses for calcite include: pH adjustment, corrosion control, and remineralization of desalinated water.

Suitable for flow rates of 45 LPM. For help in calculating your flow rate see How to Measure Your Flow Rate

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.

Maintenance of the Calcite 15 x 52 Inch pH Correction Unit

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.

Specifications

Model Calcite 15 x 52 Inch pH Correction Unit with Clack Valve – 45 LPM
SKU C1552PH
Brand No
Filter Parameter No
In Depth Calcite 10 x 44 Inch pH Correction Unit with Clack Valve

Mineral Tank Size (Inches) 10 x 52
Media (litres) 42
Min Back Wash Flow (l/m) 29
Inlet & Outlet Ports 1″ BSP male

ADVANTAGES
• Naturally occurring material
• Low uniformity coefficient for maximum contact for controlled pH correction
• Slower reacting for controlled pH correction
• Inexpensive

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
• Uniformity Coefficient: 1.5
• Hardness: 3.0 (Mohs scale)
• Composition: CaCO3, 95% min. MgCO3, 3.0% max.

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

Certified to ANSI/NSF Standard 60

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