2121 William Street, Cape Girardeau, MO 63703
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Calcium Up
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Calcium Up

Increases calcium hardness levels in pool water. Proper calcium levels protects pool surfaces and equipment.


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


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


  • In vinyl and fiberglass pools, calcium hardness levels should be between 150 – 250 ppm
  • In pools with plaster or similar surfaces, calcium hardness levels should be between 250 – 350 ppm

Available Sizes

  • 4 lb pail
  • 10 lb pail
  • 25 lb pail

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