Pool Life Calcium Plus (20lbs)
Raises calcium hardness in pools. Helps prevent corrosion of metal and plaster surfaces.
Calcium hardness is the first chemical adjusted. Always adjust the calcium hardness before alkalinity and pH when balancing pool water. If the hardness of the pool is adjusted after alkalinity and pH, normally both will need readjusting.
Calcium hardness should be raised in small incremental changes. The hardness of the water will rise easily, but in order to lower the hardness level, part of the pool must be drained. For pools that are low in hardness, adding Poolife Calcium Plus will remedy the problem