Pool Mate 8-Pounds Calcium Hardness Increaser
Calcium chloride pool hardener that rapidly increases total hardness. Helps prevent corrosion or etching; ideal range 200–400 ppm. Customers note quick dissolution and effective increases, with some ease-of-use concerns
Highlights
- raises calcium hardness quickly
- helps prevent corrosion/etching
- easy dissolution in many conditions
Pros
- rapidly increases calcium hardness
- prevents corrosion or etching
- dissolves quickly
- effective at raising levels
- good value for money
Cons
- difficult container opening
- mixed results on hardness increase
Best For
Features
- Calcium chloride increases pool water hardness
- Raises total hardness quickly to help protect surfaces
- Supports maintaining calcium hardness in the 200–400 ppm range
- 8 ounces raise hardness by 10 ppm per 5,000 gallons of water
