Well you call yourself a WaterDoc but I have to strongly disagree with you at this point.
I beleive we do need these minerals (Ca and Mg ) from our water, and removing these from water is jeopardizing our health. Of course chlorine and fluoride are harmful to the health.
I am doing several experiments on effect of magntism on water. I have seen that water becomes "wetter" when exposed to magnetic field. It also expels all its chlorine.