Calcium Booster

Raises water hardness level while preventing foaming and equipment corrosion.

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Raises water hardness level while preventing foaming and equipment corrosion.

Compatible with:

  • Chlorine
  • Bromine
  • Ozone
  • Biguanide sanitizers

By maintaining proper hardness levels the life of the spa will be extended.


Water containing low calcium will etch plaster and corrode equipment and may cause foaming. By maintaining a hardness level of 150-400ppm, the spa's life will be extended. Calcium levels can be measured with a test strip, test kit or by your local Leisure Time dealer.

One ounce of Calcium Booster raises the calcium hardness 7 ppm in 500 gallons of water

1. Test Water to determine the amount of Calcium Booster to be added.

2. Turn ON jets to circulate spa water.

3. Pour the required amount of Calcium Booster into the water.

4. Run filter for 1 to 2 hours.

5. Retest water to ensure proper level.

6. Repeat steps 1-5 until proper level is obtained.

Raises the level of water hardness, which helps prevent foaming and corrosion of equipment to extend the life of the spa

• Increases water hardness
• Helps prevent corrosion

Why Leisure Time?


For more than 25 years, Leisure Time™ has been the premier name in spa water care. During that time, spas have become more luxurious and consumers more sophisticated. To continue earning our position as the leader in spa water care, the Leisure Time™ brand continually improves its product line, program and packaging that elegantly wraps up years of innovation. Plus, Leisure Time™ spa offers its Leisure Time Simple Spa Care™ program, an easy-to-follow spa care routine that allows spa owners to spend more time in their spas and less time maintaining them.

More Information
Manufacturer Part Number CB
Chemical Product Type Balancers
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