Southern Association of Colleges and Schools Commission on Colleges. Bob Jones University is a candidate for accreditation with the Southern Association of Colleges and Schools Commission on Colleges to award associate, baccalaureate, masters, and doctorate degrees.
hthÂ® calcium hardness increaser, 4 lbs. hthÂ® calcium hardness increaser, 4 lbs., is used to raise the calcium hardness of swimming pool water. Low calcium hardness may cause the pool water to be corrosive, resulting in damage to pool surfaces and equipment.
Water Hardness: The next step in balancing our water deals with the water hardness. Calcium hardness refers to the amount of minerals, in this case calcium, which is present in the water. The ideal range for Calcium hardness is 200 â 400 ppm. To raise the Calcium hardness you will want to use Calcium Chloride.