Leisure Time Calcium Booster


Increases Water Hardness And Helps Prevent Corrosion.

Leisure Time Calcium Booster

One 1 qt bottle of Leisure Time Calcium Booster.

Calcium raises the level of water hardness, helping to prevent foaming and corrosion of equipment – and extends the life of your spa!

Tip: Use Insta-Test 4 Plus Test Strips to determine the calcium hardness of your water. Water low in calcium will etch plaster and corrode equipment.


As Needed: One ounce raises the calcium hardness 7 ppm in 500 gallons of water.

1. Determine amount of product to be added. The ideal hardness level is 150-400 ppm.
2. Turn jets ON 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.

Compatible With: Chlorine, bromine, ozone and biguanide sanitizers.

1 Order = One 1 Qt. Bottle.

MSDS & Instructions

Download MSDS (Manufacturer’s Safety Data Sheet)

Download Instructions


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.