[Enerpeace]

I recently found a large supply of water has been as of late adding calcium chloride in a suspended form to our water. I understand calcium is removed with ion filters. But if this is calcium chloride will the effect be the same? Will an ion filter also remove that?

[Borek]

There is no such thing as "just calcium" in the solution, it is always accompanied by counterions - be it chlorides or anything else (like HCO₃^-). Origin of the calcium ions doesn't matter for the filter.