Re: [Killietalk] Water

["Bill Shenefelt" <william_shenefelt at verizon.net>]

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.
Shene



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