The Leisure Time Calcium Boost liquid calcium hardness booster quickly spa and hot tub of pool equipment. One ounce raises the calcium hardness 7 ppm in 500 gallons of water.Turn jets ON to circulate spa water then pour required amount into the water. Run filter for 1-2 hours and then retest water to ensure proper hardness level has been reached. Repeat until proper level of 150-400ppm is obtained.
Raise the level of water hardness, which helps prevent foaming and corrosion of equipment to extend the life of your spa.
Helps prevent corrosion
Compatible with chlorine, bromine, ozone and biguanide sanitizers
Properly balanced spa water should maintain a hardness level of 150-400 ppm.