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Re: Boiling water

Steve is correct.  I forget the details of the reaction and my beer
brewing books are at home, but if you boil well oxygenated hard water
you should get a white precipitate of calcium carbonate.  I know when I
boil water at home I get a serious white ring and lots of white goop in
the water.  The reaction takes some time so you may have to boil the
water for 15 or so minutes.

Jason Miller Digest wrote:

> I was always under the impression that boiling water would increase
> the hardness of the water (both DH and GH) because as the water is
> boiled, it evaporates.  Therefore, with less actual H2O molecules, the
> concentration of dissolves solids increases.
>   The reason you get a precipitate when you boil the water is because
> the concentration of the DS becomes so high that it can no longer stay
> dissolved.
> Steve Pushak wrote:
> > If
> > you boil the water, do you get heavy precipitation? This is one way to
> > remove carbonate hardness that is cheaper than RO. Boil the water!

Bob Kimball