Increase water hardness to prevent equipment corrosion and scaling with GLB calcium hardness up. One pound of GLB calcium hardness up will increase the calcium hardness 10 ppm in 10,000 gal. of water.
Increases calcium hardness in swimming pool water
Will prevent the formation of scale deposits and eliminate the corrosion of metal pipes and fixtures
Safe for all pool surfaces
The calcium hardness level should be 150 - 250 ppm
Compatible with chlorine, bromine, mineral purification systems, salt water chlorine and ozone sanitizing systems