(SOLD)Calcium, Alkalinity, and Magnesium additives I have 1 Gallon 6-lbs Hight Purity Magnesium chloride, 1 gallon 7-lbs (HP) Soda Ash , 1 gallon 7 LBS (hp)Calcium Chloride,** 1 gallon 8-LBS Magnesium Sulfate, 3 PVC 1 gallon jugs 2 with one once dispensing pumps. $40 for all.