Robelle 16-Pounds Pool Calcium Hardness Increaser
Calcium chloride increases pool hardness to prevent corrosion; helps maintain 200-400 ppm range. Customers note quick dissolution and easy use, with some concern about lid quality and spillage
Highlights
- raises calcium hardness 10 ppm per 5,000 gallons
- ideal hardness range 200-400 ppm
- calcium chloride-based hardness increaser
Pros
- Rapidly increases total hardness
- Easy to use and dissolves quickly
- Helps prevent corrosion or etching
Cons
- Mixed reviews on lid quality
- Potential spillage during use
Best For
Features
- Calcium chloride for pool water applications
- Rapidly increases total hardness to help protect surfaces
- Maintains calcium hardness in the 200–400 ppm range
- 8 ounces raise calcium hardness by 10 ppm per 5,000 gallons
