SpaBoss Cal Rise 700g is the effective way to boost the Calcium Hardness of your spa or hot tub's water The ideal range of hardness is between 150-275 ppm. Cal rise is granular and should be diluted before adding to water. Cal rise is pH neutral. High calcium hardness promotes scale formation and cloudy water, where as low calcium hardness promotes suds/foaming or water and corrosive water.
SpaBoss Cal Rise is comparable to:
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