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Hardness Increaser

Increases calcium hardness levels in pool water, and protects pool surfaces and equipment


  • Increases calcium hardness
  • Pure flakes minimize clouding in pool water


  • Prevents long term damage to vital pool components
  • Easy to use application


  • Calcium Hardness levels in water should be maintained between 180-400 ppm
  • To increase calcium levels 10 ppm, add 1.25 pounds per 10,000 gallons of water
  • If calcium levels need to raise more than 30 ppm, Take your total dose and divide it into small doses and apply every couple hours.

Available Sizes

  • 4 lb pail, 10 lb pail, 25 lb pail

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