Calcium Builder

DESCRIPTION: Calcium hardness is a common reference to pool chemistry. The recommended level for calcium hardness is 200-400 ppm and both high and low levels result in swimming pool problems. Low calcium hardness results in corrosive water. The plaster surfaces in tile grout softens and erodes, metal equipment and accessories rust quickly and water becomes aggressive. The calcium hardness level can simply be increased through the addition of Calcium Builder (contains calcium). DIRECTIONS: Add Calcium Builder by sprinkling directly into the deep end of the pool. Allow to dissolve completely, then test for calcium hardness in 2-plus hours. *Note: Dilutions may vary depending on water conditions and type of equipment used. Increase or decrease concentrations as desired. Consult you A.T.P. representative. 1-2 lbs per 10,000 gallons increases calcium 10ppm CAUTION: Harmful if swallowed. Causes serious eye irritation FIRST AID PROCEDURES: SKIN