I'm looking into making my own two part. The problem is I live in Florida and can't seem to find it. I know I can get it from brs but I'd like to find it locally. Anyone live in Florida who has found it?
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Randy @Randy Holmes-Farley , if I'm not mistaken, the Leslie's calcium chloride (Hardness Plus), is anhydrous (94-97%), while DowFlake is not (77-80%). Accordingly, as you state in your recipe about using anhydrous, you'll want to use 20% less. That is, 2 cups of anhydrous calcium chloride to a gallon of RO/DI water. Take note that this will get fairly warm when dissolving.
How can you make that judgement based on heat? I haven't heard that before and am interested!