Bas Pels wrote:I'm not completely surprised hardness is considered as no threat to humans - in fact, if we drink hard water, our bones will remain stronger (and your childrens bones will develop better)
In our country the law states hardness should be above 8 DH - but under 12, because of mechanical failures due to hardness
Yes, when I was in my early teens (about mid 1960s), we had to put down a new well head. My father took a water sample in for testing, and when the results came back, the person told him that our water was so good, we could have bottled and sold it. Of course, we thought that was silly; who bottles and sells water?!? One of those "if only we had known then..." memories.
Sorry about going off topic!
There are two kinds of error: blind credulity and piecemeal criticism. Sound skepticism is the necessary condition for good discernment; but piecemeal criticism is an error. - Egyptian proverb