Puri Tech Calcium Hardness Increaser 50 lb - Prevents Stains

In this review the Puri Tech Calcium Hardness Increaser 50 lb is evaluated for pool owners who need a reliable way to raise calcium hardness and prevent surface staining. The bottom line: this 50 lb bag is best for large backyard pools and commercial pools because it delivers a high-purity, fast-dissolving calcium chloride formula that quickly restores hardness and helps protect plaster, tile and equipment from corrosive soft water.

Key Features

• Prevents Corrosion & Stains: Raises calcium hardness to protect pool surfaces and metal equipment from damage caused by low calcium levels.
• Large 50 lb Supply: Provides enough product for multiple treatments or ongoing maintenance of larger pools without frequent repurchasing.
• Fast-Dissolving Formula: Made with high-quality calcium chloride that dissolves quickly and evenly for predictable treatment results.
• Easy Application: Simple measure-and-add use with an included dosage chart for pools from 2,000 to 20,000 gallons to guide correct dosing.
• Compatible & Versatile: Works with both chlorine and saltwater systems so it can be used in most residential and commercial pool setups.

Who It's For

The product is ideal for homeowners with medium to large pools, hot tubs and commercial facilities that need to raise and maintain calcium hardness to avoid etching and staining. It is especially useful for those who prefer buying a bulk bag to treat several seasons or multiple pools.

Those with very small plunge pools or users who require pre-mixed convenience formulations might look elsewhere for smaller, single-dose options. Also, anyone uncomfortable handling granular chemicals should follow safety guidance or consult a professional.

Pros & Cons

Pros

• High-purity calcium chloride formula that customers report dissolves completely and works like more expensive brands.
• Large 50 lb bag is economical for repeated treatments and long-term maintenance.
• Dosage chart and straightforward application make it easy to use for DIY pool maintenance.
• Compatible with chlorine and saltwater systems, helping maintain clearer, healthier water.

Cons

• Bulk 50 lb size may be more than needed for very small pools or occasional users.
• Some customers disagreed on effectiveness, so careful measurement and proper circulation are required for best results.

Specifications

Product name	Puri Tech Calcium Hardness Increaser 50 lb
Active ingredient	Calcium chloride (high purity)
Net weight	50 lb
Compatible systems	Chlorine and saltwater pools
Dosage guidance	Includes chart for 2,000 to 20,000 gallon pools
Primary benefit	Prevents corrosion and staining by boosting calcium hardness

Our Verdict

Puri Tech Calcium Hardness Increaser 50 lb is a practical choice for pool owners who need an effective, economical way to raise calcium hardness and protect surfaces and equipment. The fast-dissolving, high-purity formula and included dosage chart make it good value for larger pools and routine maintenance, provided users follow dosing and circulation guidance.

Frequently Asked Questions

How do I add this to the pool?
Measure according to the supplied dosage chart, broadcast slowly into deep water or dissolve in a bucket before adding, then run the pump to circulate.

Is it safe for saltwater pools?
Yes, the formula is compatible with both chlorine and saltwater systems when used as directed.

How often should I test hardness?
Test calcium hardness monthly or after heavy dilution or replenishment to keep levels in the recommended range and repeat dosing only as needed.