From: brf <[email protected]>
Date: 23 February 2010 9:56:39 AM
To: [email protected]
Subject: Re: CS>Confusion Making CS
Please excuse me for appearing to be so dense David but if I'm
getting a reading on the TDS meter of 15 ppm, does that mean it's
actually roughly 30 ppm?
I have seen some of my batches with 'sparklies' in them when using
the laser and I'm assuming these are the larger 'solid' particles
that you're referring to. Is that right?
Yes thats very roughly correct if you are using a TDS meter. You have
very roughly 30ppm of ionic silver, plus a bunch of 'particulate'
silver ( thats the sparklies and other stuff you can see in the
laser.). If the water is clear then its very roughly a ratio of
around 80% ionic to 20% particles, suggesting your particulate ppm is
very roughly 6ppm, meaning you have a TOTAL ppm of very roughly 36ppm.
Notice how many times I said 'very roughly'!!! By the time you
compound all those 'very roughlies' you can be off the mark by a
pretty massive amount so don't take meter readings to seriously.
They just provide a handy guide to help you get some repeatabiliy.
David
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