LifeLine Calcium Hardness Increaser 15lb testing transforming your pool into a

transforming your pool into a dazzling scene for parties or relaxed evenings

and summer gatherings

Blue and black color options available to suit your style and visibility needs

They’re perfect for developing confidence in the water and letting kids invent their own games underwater

LifeLine Calcium Hardness Increaser 15lb testing transforming your pool into aLifeLine Calcium Hardness Increaser 15lb LifeLine Calcium Hardness Increaser 15lb is a granular calcium chloride product used to raise calcium hardness in pool water, helping prevent corrosion, etching, and other damage caused by soft or underbalanced water. By keeping hardness in the recommended range (commonly about 200400 ppm, minimum around 150 ppm), it supports longterm protection of plaster, vinyl, and equipment while improving overall water