[Edward]

How would I mix Calcium Chloride found in a granular ice melt compound? The manufacturers chemist said it would dissolve in water, and it is 100% Calcium Chloride. How much should I add to the tank to acheive the results?

I would go back to the chemist and ask him what Calcium Chloride is it.

Calcium Chloride dihydrate CaCl2 2H2O
Calcium Chloride anhydrous CaCl2
Calcium Chloride 6-hydrate CaCl2 6H2O

Each will be needed in a different quantity to achieve the same concentration.

Edward