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.
Woman drinking water Photo Credit Stockbyte/Stockbyte/Getty Images. Because salt is used to remove minerals such as calcium and magnesium from soft water via the process of ion exchange, the sodium content in soft water is higher than that of hard water.This increase in sodium can have adverse effects for those who are restricting their sodium intake due to health concerns.verview. Water hardness is indicated by its levels of calcium, magnesium and sometimes iron, according to Colorado State University. Because the presence of these minerals can be a nuisance, especially when it comes to using the water for cleaning, many people use a water softener on their water.