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Re: [APD] Convert microSiemens to mg/liter CACO3?
>Date: Wed, 28 Sep 2005 20:45:24 -0500
>From: "Tom Wood" <tomwood2 at flash_net>
>Subject: [APD] Convert microSiemens to mg/liter CACO3?
>To: <aquatic-plants at actwin_com>
>I know they are measuring separate parameters, but if you knew exactly what
>was in the water, say by using RO water reconstituted with a product like
>Kent's RO Right, would it be possible to estimate a conversion?
You can't do that with RO Right, AFAIK, because Kent has always refused
to list the ingredients and quantities. That's a major reason I will not
ever use the product.
May I respectfully suggest you use Seachem's "Equilibrium?" They give a
detailed list of how much of what is in the product.
The factor of two conversion (uS to mg/l) is quite good enough for most
purposes with most ordinary tap water, IME, so such tests are a bit
overkill. Differential measurements of limited accuracy are quite OK for
such purposes as avoiding osmotic shock, the main purpose for most folks
wanting to know tds.
I always find what percent of my tds is as general hardness, so I also
use tds/uS as a very quick and dirty way to estimate GH. When moving or
bagging lots of fish, it beats hell out of any titration tedium.
Wright Huntley - Rt. 001 Box K36, Bishop CA 93514 - whuntley at verizon_net - 760 872-3995
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