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.
If the pH of the water is 5.0 to 6.9 and the calcium hardness is less than 150 ppm, generally the calcite neutralizers are preferable for most homeowners. A once per year addition of the calcite is all that is typically required. The soda ash feeders require new solution added every 3â6 months.