Pool School 101 - Calcium Hardness

 

 

 

 

Ideal Range: 200-400

Test: Take water to a dealer test station or use an advanced test kit

Low Calcium Hardness

  • Water is corrosive, causing etching or pitting of surfaces
  • Raise the calcium harness with any Hardness Increaser product

High Calcium Hardness

  • Water scale is forming, which calcifies equipment and causes cloudy water
  • Lower the calcium hardness by partially draining and refilling the pool

 

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