Poolife 93% Hardness Increaser 20 lb Calcium Plus

Key Benefits + Water Balance Protection

• 93% calcium chloride formula for increasing pool water calcium hardness
• Helps correct low calcium hardness that can contribute to corrosive water conditions
• Helps protect plaster, concrete, plumbing, heaters, fittings, and other pool equipment
• Fast-dissolving granular formula for straightforward pool-water adjustment
• Suitable for multiple pool surface types when used according to label directions
• 20 lb package provides convenient capacity for larger corrections and routine pool maintenance
• Identified by Poolife SKU 62133
• Recommended calcium hardness range: 200–500 ppm

Poolife identifies Calcium Plus as a high-purity calcium chloride water balancer designed to raise calcium hardness and help protect pool surfaces and equipment.

Quick Product Summary

Poolife Calcium Plus 93% Calcium Hardness Increaser 20 lb is a granular pool-water balancing product designed to raise calcium hardness when pool water tests too low. Low calcium hardness can contribute to corrosive water that attacks plaster, grout, heaters, plumbing, and metal components. This 20 lb package, SKU 62133, uses a high-strength 93% calcium chloride formula for efficient calcium hardness correction.

Poolife recommends testing calcium hardness before application and maintaining calcium hardness in the 200–500 ppm range.

Best For

• Pools testing below the recommended calcium hardness range
• Plaster and concrete pools requiring calcium balance
• Vinyl and fiberglass pools requiring properly balanced water
• New pool fills and substantial water replacements
• Areas with naturally soft fill water
• Pool owners correcting low calcium hardness
• Pool service professionals balancing residential pool water

Why This Matters

• Low calcium hardness can make pool water corrosive
• Proper calcium levels help protect plaster and concrete surfaces
• Balanced calcium helps protect heaters and metal pool components
• Maintaining proper hardness supports overall water balance
• Correcting low hardness helps reduce the risk of surface etching
• Testing before dosing helps prevent excessive calcium and scale formation

Poolife notes that low calcium can contribute to corrosion and surface damage, while excessive calcium hardness can contribute to scaling.

Common Signs You Need This / Use This When

• Calcium hardness tests below the recommended range
• A pool has recently been filled or partially refilled
• Source water is naturally soft
• Plaster or concrete pool water requires hardness correction
• Routine water testing shows declining calcium hardness
• You need Poolife product 62133 in the 20 lb package

Product Specifications

Poolife's current product information confirms calcium chloride as the active formula, granular form, calcium-hardness function, and recommended 200–500 ppm range. The 20 lb package is documented under SKU 62133 by current pool-industry listings.

Compatibility / Fitment Notes

Poolife Calcium Plus is a water-balancing chemical rather than an equipment-specific replacement part. Poolife currently lists the formula as suitable for vinyl, fiberglass, plaster, and concrete pool surfaces when applied as directed.

Always test the pool water before adding calcium hardness increaser. Do not add product simply because the pool has a particular surface type; dosage should be based on the current calcium-hardness reading, pool volume, and the product label.

Installation / Use Notes

Test the pool's calcium hardness before application. Poolife directs users to calculate the required amount using the dosage chart, then broadcast the product evenly over the surface of the deep end while the circulation pump is running. Circulate the water for several hours and retest after approximately 24 hours before making another adjustment.

For the 20 lb 62133 product, current product documentation states that approximately 1 lb per 10,000 gallons raises calcium hardness by 10 ppm. If a correction greater than 50 ppm is required, the documented guidance is to divide the addition into thirds and allow approximately 4–6 hours between additions.

Wear protective gloves when handling, keep the product dry, and never mix it directly with other pool chemicals. Always follow the package label for final dosing and safety instructions.

Buy with Confidence

Benchmark Pool Supply provides professional pool-water products backed by practical, service-focused information. With Poolife Calcium Plus 93%, testing your water first and matching the dosage to your pool volume helps make calcium-hardness adjustments more accurate and helps avoid unnecessary overcorrection.