[gruez]

>where you cannot drink the water because of too much chalk

Is this a taste issue or a health issue?

[hutzlibu]

Well, for me, that would be allmost the same, as I believe taste has a biological reason, as a strong indicator whether something is good or bad for my health. (no, pure sugar does not taste good for me)

But officially science says currently no, chalk in water is not a health issue and maybe even good.

(but I would not be surprised, if that changes in the future, like with many other things)