Increases Calcium Hardness in Swimming Pools. Ideal range for Calcium Hardness is 200 – 400ppm (concrete) 150 – 250 ppm (fiberglass). Pack Size: 1kg

Application: • 10g increases the Calcium Hardness by 10ppm per 1000L • Dissolve the product in a bucket of water, and then apply the solution to the pool Pro Tip: • Allow pump and filter to run for at least 6 - 8 hours before retesting • Do not add to pool within 2-4 hours of adding Alkalinity Up/Buffer (this can cause extreme cloudy conditions) • Low calcium hardness can cause water to foam