I would get a TDS or PWA meter and base my decisions on what readings
I'd accept as maximum.

                                                Chuck
 I don't question YOUR existence. - God

On 3/21/2010 2:48:01 AM, Rowena (new...@internode.on.net) wrote:
> What is the current thinking on using rain water for making CS?
> I seem to recall that in the past the general opinion was that one should
> only use distilled.
> I have to buy my distilled water, and although here in Western Australia
> that is at least possible, it is expensive and inconvenient.
> 
> This Australian winter, I expect to have access to fresh rain water, and
> have been thinking of bringing it home in big clear water fountain bottles
> and using that for drinking water (we do have reverse osmosis, but I am
> gathering from what I read that some of the worst chemicals are not
> actually completely filtered out by the filters) and also perhaps for CS
> unless there is some overwhelming reason why it should not be so used.  I
> would upend the bottles on our ceramic water dispenser and use it for
> general consumption also.
> 
> This water would be gathered on a huge metal roof and stored in metal
> rainwater tanks.  I suspect this might engender some potential objection,
> but I don't know.  I would go and fill the bottle for a charitable donation, 
> and bring them home for use.  The first rains of the season would be allowed 
> to run away to flush dust off the roof before it was directed via simple 
> filters to the 


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