Pool Mate 25-lb Calcium Hardness Increaser
Calcium chloride-based pool hardness increaser that raises total hardness to help prevent corrosion. Appears effective at increasing hardness with quick dissolution; some users report easy use while others have container-opening issues
Highlights
- calcium chloride-based formula
- raises hardness 10 ppm per 5,000 gallons
- made in USA
Pros
- raises calcium hardness in pools
- rapidly increases total hardness
- helps prevent corrosion or etching
- dissolves quickly
- value for money
Cons
- mixed experiences on hardness level results
- some users report difficulty opening container
Best For
Features
- Calcium chloride-based pool additive for increasing total hardness
- Raises calcium hardness by approximately 10 ppm per 8 ounces per 5,000 gallons
- Helps prevent corrosion or etching of pool surfaces by maintaining hardness
- Recommended calcium hardness range: 200–400 ppm
