HASA CALCIUM CHLORIDE (DRY)
INCREASES POOL AND SPA WATER HARDNESS
HASA Calcium Chloride is used to increase the calcium
hardness of pool and spa water. Plaster pool surfaces may etch if
calcium hardness is below 175 ppm. Test the water with a reliable
test kit. Acceptable calcium hardness is within a 175-275 ppm range.
HASA
CALCIUM CHLORIDE is available in 5#, 15#, and 50# sizes.