Poolife® Calcium Plus 93% – Fast-Dissolving Calcium Hardness Increaser (8 lb Bag)

Maintain healthy, balanced water and protect your pool surfaces with Poolife® Calcium Plus 93%. This high-purity calcium hardness increaser is designed to quickly raise calcium levels in pool water, helping to prevent etching, corrosion, and surface damage—especially in plaster, tile, and metal components.

This 8 lb bag is perfect for precision dosing or regular maintenance in residential pools. The fast-dissolving granules make it easy to apply, and the 93% active calcium chloride formula delivers powerful results without affecting pH or other key water chemistry.

Key Features:

• Raises calcium hardness to optimal levels

• Contains 93% calcium chloride for maximum efficiency

• Fast-dissolving granules for quick results

• Helps prevent corrosion and etching of pool surfaces and equipment

• Ideal for vinyl, plaster, fiberglass, and concrete pools

Benefits:

• Keeps pool finishes and metal components protected

• Helps maintain water clarity and chemical balance

• Compatible with all sanitizing systems

• Great for use during pool opening or weekly maintenance

How to Use:

• Test water for calcium hardness before application

• Add directly to pool water with pump running

• Circulate thoroughly and retest to confirm levels

• Target calcium hardness range: 200–400 ppm

Pro Tip: Soft water areas or excessive rain can quickly lower calcium hardness—use Poolife Calcium Plus to correct and maintain the proper range.