0330 113 7181CONTACT US


You have no items in your shopping cart.

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

Be the first to review this product

Quick Overview

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

Availability: In stock



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.

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 rztes of 45 LPM.

Calcite Flow Pressure


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.

Additional Information

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

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

• 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.

• 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
  1. Be the first to review this product

Write Your Own Review

How do you rate this product? *

 1 star2 stars3 stars4 stars5 stars

Product Questions

No questions yet. Be the first to ask the question!

Also Purchased