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    Leisure Time Calcium Boost
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    Quickly raise spa water hardness, and prevent foaming and equipment corrosion.
    • Increases spa water hardness & hot tub water hardness to prevent corrosion.

    • Compatible with chlorine, bromine, ozone and biguanide sanitizers
    Instructions: One ounce raises the calcium hardness 7 ppm in 500 gallons of water.
  • Determine amount of product to be added. The ideal hardness level is 150-400 ppm.
  • Turn jets ON to circulate spa water.
  • Pour required amount into the water.
  • Run filter for 1 to 2 hours.
  • Retest water to ensure proper level.
  • Repeat steps 1-5 until proper level is obtained.
      • Qty.
      • Item No.
      • Item Name
      • Only!
      • Y5106
      • 1 qt.
      • 1 qt.
      • Y5106
      • $9.99
      • $9.99
      Quickly raise spa water hardness, and prevent foaming and equipment corrosion.
      • Increases spa water hardness & hot tub water hardness to prevent corrosion.

      • Compatible with chlorine, bromine, ozone and biguanide sanitizers
      Instructions: One ounce raises the calcium hardness 7 ppm in 500 gallons of water.
    • Determine amount of product to be added. The ideal hardness level is 150-400 ppm.
    • Turn jets ON to circulate spa water.
    • Pour required amount into the water.
    • Run filter for 1 to 2 hours.
    • Retest water to ensure proper level.
    • Repeat steps 1-5 until proper level is obtained.
      • Customer Reviews
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