I just examined an unopened bag of de-icer that we have. It contains Sodium Chloride, Calcium Chloride, Magnesium Chloride, and Potassium Chloride. I know sodium, Calcium, and Magnesium are components in water hardening, and I am pretty sure Potassium is present in fertilizers. Would it be ok to use this?
Also is it any problem that they are all chlorides?
Thanks yet again for all your help!