Prevent corrosion and etching in your pool with GLB 71214A Calcium Hardness Up, a powerful formula that raises calcium hardness levels to protect surfaces and equipment. This 25-pound pail is ideal for regular maintenance and ensures your pool water stays balanced and safe for long-term use.

Includes My Garden Pool Test Strips & Scum Sponge to simplify your pool care routine!

Key Features

• Raises calcium hardness levels to prevent corrosion and etching.
• Protects pool surfaces and equipment from damage.
• Fast-dissolving formula for quick and effective results.
• Safe for all pool types, including saltwater systems.
• Includes My Garden Pool 20 Ct. Test Strips and Flower Oil-Absorbing Scum Sponge.

Usage Instructions

1. Test calcium hardness levels using My Garden Pool Test Strips.
2. Add 1-2 pounds of Calcium Hardness Up per 10,000 gallons of water.
3. Distribute evenly across the pool surface.
4. Circulate water for at least 4 hours and retest. Adjust as needed to maintain levels between 200-400 ppm.