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Re: [Killietalk] Water
Interesting, I have liquid rock with a TDS of 300 or so pH 8.3
The GH is 0 the KH 180ppm, or 10 degrees german hardness. Calcium is only at 20ppm, I am not quite sure what is buffering my water but it isn't calcium. It is well water from a 420ft deep well.
One day I'll fork out for a full analysis.
So by your reckoning Low calcium = Low TDS, not quite true with my water.
Please correct me if I'm wrong ;)
--------- Original Message ---------
DATE: Sat, 15 Nov 2003 12:15:55
From: "Bill Shenefelt" <william_shenefelt at verizon.net>
To: "killifish discussion list" <killietalk at aka_org>
>C. Harrison wrote:
>"The relation between the 2(Conductivity and TDS) is not linear."
>This is true, but the meter reading for TDS is really for conductivity and
>the READING is linear. It reads conductivity, not dissolved solids, but it
>may be calibrated to show a "PPM TDS" value The value is NOT true total
>dissolved solids, but as mantioned in other replies can give a relative
>value which can be useful. Other than builldup of those garbage and waste
>products which may not ionize, the meter reading will tell you if you have a
>higher or lower dissolved salt (sodium, calcium, magnesium etc) content
>which can be useful in moving fish around to prevent osmotic shock. Not the
>whole answer, but better than just tasting the water or smelling it. A low
>meter reading DOES mean a low calcium hardness value which is quite useful.
>To join the AKA see http://www.aka.org/pages/join.html
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