SpaGuard – Calcium Hardness Increaser – 12oz
SpaGuard’s Calcium Hardness Increaser enables spa owners to increase their calcium hardness with this easy-to-use granular formula. The Calcium Hardness Increaser will boost your calcium hardness to above the danger zone, where low levels can cause extensive corrosion of plumbing, jets, fixtures, and tub surfaces. Calcium Hardness Increaser helps raise the calcium level steadily, so you don’t get too much calcium and start developing scale build-up and cloudy water. The optimal calcium hardness level is 200-400 ppm, while anything below 100 ppm will cause corrosion.
7 in stock