Liquid Calcium Hardness Up raises calcium levels to help reduce foam and protect the spa from harmful corrosion from soft water or low calcium hardness.
Easy-to-use liquid product
Prevents corrosion of plumbing and equipment
1. Determine amount to be added by using a hardness test kit.
2. Pour proper amount into spa or hot tub with equipment turned on.
3. Run filter for 1-2 hours.
4. Water may be retested in 20 minutes.
Low hardness will etch plaster and corrode equipment.
Chlorine, bromine, ozone and mineral purification systems.
Liquid Calcium Hardness Up Advantage:
1 oz. of Liquid Calcium Hardness Up per 500 gallons of water increases hardness by 7 ppm.
Please contact our MSDS Consultation Line at 1-800-511-6737 to request an Arch Chemicals Material Safety Data Sheet.