Calcium Hardness Up
Increase water hardness to prevent equipment corrosion and scaling
The calcium hardness level should be 150 – 250 ppm
One pound of GLB® Calcium Hardness Up will increase the calcium hardness 10 ppm in 10,000 gallons of water
Compatible with chlorine, bromine, mineral purification systems, salt water chlorine and ozone sanitizing systems
Available Sizes: 6 lbs. / 15 lbs. / 25 lbs.