 
      
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 CONTACT: Wash off with warm water and soap. Remove and wash contaminated clothing before reuse. If 
symptoms persist call a physician. EYE CONTACT: Rinse immediately with plenty of water, also under the eyelids for at 
least 15 minutes. Seek immediate medical attention/advice. INHALATION: Move to fresh air. If breathing is difficult 
give oxygen. If symptoms persist call a physician. INGESTION: Rinse mouth. Drink plenty of water. Do NOT induce 
vomiting. Never give anything by mouth to an unconscious person. If swallowed, seek medical attention. 
STORAGE AND HANDLNG: 
Dispose of contents/container to an approved waste disposal plant. 
PERSONAL PROTECTION: 
Wash face, hands and any exposed skin thoroughly after handling. Do not eat, drink or smoke when using this product. 
Do not breathe dust/fume/gas/mist/vapors/spray. Wear eye protection/face
 protection. 
CONTAINS: 
Calcium Chloride (CAS#10043-52-4). 
N.F.P.A. Ratings: Flammability-2, Health Hazard-O, Instability-O, 
KEEP OUT OF THE REACH OF CHILDREN 
PROFESSIONAL USE ONLY 
CONSULT S.D.S. BEFORE USE 
        