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.
Calcium hardness is the measure of the amount of dissolved calcium found in your pool water. If this particular pool parameter is not right, it can lead to an aggressive pool. Thus causing damage to your pool and mechanical systems. In most cases this part of your swimming pool water chemistry is not tested very often.