However, at a pH of 8.3 or greater, agricultural limestone will not dissolve. Agricultural gypsum (calcium sulfate) or food grade calcium chloride could be used to raise calcium levels in soft, alkaline waters.
However, at a pH of 8.3 orgreater, agricultural limestone willnot dissolve. Agricultural gypsum(calcium sulfate) or food grade calciumchloride could be used toraise calcium levels in soft, alkalinewaters.