Pool Mate 1-2825 Calcium Hardness Increaser for Pools, 25-Pounds

This is a dry granular product that increases the total hardness in pool water to the really helpful range.Test for calcium hardness with a reliable test kit. The desired range for calcium hardness is as follows: Vinyl Pools: two hundred-300 ppm, Tile and Exposed Aggregate Pools: two hundred-400 ppm, Marcite, Fiberglass or Painted Pools: 250-400 ppm. If the calcium hardness tests not up to the desired range, add this product in keeping with the included chart. Place this product into a plastic bucket already filled with swimming pool water. Do that in a ration of as much as 2 pounds of product per approximate 5-gallon bucket of water. Slowly pour this solution across the perimeter of the swimming pool at the same time as the circulating system is operating. In a 10,000 gallon pool, don’t add more than 10 pounds of this product per 2 hour period.

Calcium chloride for pools
Abruptly increases total hardness
Helps prevent corrosion or etching of pools
Ideal calcium hardness range 200 – 400 ppm
8 ounces raises calcium hardness level 10 ppm per 5,000 gallons of water
Prevents the staining or etching of your pool’s surface
Low calcium hardness level can cause water issues