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Calcium Booster 1 Qt.

Calcium Booster 1 Qt.
Calcium Booster 1 Qt.

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Raises water hardness level.

Raises water hardness level while preventing foaming and equipment corrosion.


Increases water hardness
Helps prevent corrosion


One ounce raises the calcium hardness 7 ppm in 500 gallons of water.
1. Determine amount of to be added. The ideal hardness level is 150-400 ppm.
2. Turn on jets to circulate spa water.
3. Pour required amount 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.


Water low in calcium will etch plaster and corrode equipment.

Compatible With:

Chlorine, bromine and biguanide sanitizers.

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