Raises Calcium Hardness When Total Hardness is Low
Having the correct level of Total Hardness prevents surface damage like corrosion, staining and etching.
- Corrects low calcium hardness
- Prevents etching & staining
- Fast-dissolving formula
If calcium hardness levels are too low the "soft water" will corrode pool equipment, etch pool plaster and may cause metallic stains.
**ONLY AVAILABLE IN SELECT REGIONS