Hi, After reading some ways to lower my chemical bills on this forum and needing to increase my calcium hardness I was able to find a 50# bag of Peladow Calcium Chloride Pellets for $17. They are small pellets maybe the size of BB's and I think would dissolve fairly well. My question though is I noticed on the bag it lists 4 ingredients.
Calcium Chloride 90-97%
Sodium Chloride No % listed
Strontium Chloride No % Listed
Potassium Chloride No % Listed
Is this safe to use as a Calcium Hardness increaser?