Puri Tech Pool Chemicals Calcium Hardness Increaser Plus for Pools & Spas

This calcium hardness increaser for pools and spas is available in resealable bags, making it easy to store. The active ingredient is Calcium Chloride, which raises the calcium hardness level in the water.

Balancing the calcium hardness level is essential to prevent foaming and surface erosion or scaling. The recommended dosage varies depending on the volume of the pool or spa.

For a 2,000-gallon pool or spa, the following dosages are recommended: - To increase hardness by 50ppm, use 1.5 Lbs. - To increase hardness by 100ppm, use 3 Lbs. - To increase hardness by 200ppm, use 6.25 Lbs.

For a 5,000-gallon pool or spa, the following dosages are recommended: - To increase hardness by 50ppm, use 3 Lbs. - To increase hardness by 100ppm, use 6.25 Lbs. - To increase hardness by 200ppm, use 12.5 Lbs.

For a 10,000-gallon pool or spa, the following dosages are recommended: - To increase hardness by 50ppm, use 6.25 Lbs. - To increase hardness by 100ppm, use 12.5 Lbs. - To increase hardness by 200ppm, use 25 Lbs.

For a 20,000-gallon pool or spa, the following dosages are recommended: - To increase hardness by 50ppm, use 10.5 Lbs. - To increase hardness by 100ppm, use 25 Lbs. - To increase hardness by 200ppm, use 50 Lbs.

This Puri Tech pool calcium increaser is a fast-acting formula that effectively raises the calcium hardness level in your pool or spa.

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