Sol, if you can't marke good EIS with as PWT reading of 3.0 then your process 
is in trouble.
   
  Off line please describe you setup and operating conditions. maybe I can help 
you.
   
  "Ole Bob"

sol <sol...@sweetwaterhsa.com> wrote:
  I actually use a PWT. A TDS is not sensitive enough for my needs. I need 
to have distilled water of no more than .4 uS, which is lower than a TDS 
can read, so I was lucky to have chosen a PWT 3 years ago. Commercial 
distilled water of all brands that are available where I am read .6 uS 
to well over 2.5 uS.
Most people (I've been told) can make very good clear CS with distilled 
water that reads up to 3.0 uS, but I can't. Depends on conditions where 
you are.
sol

Deborah Gerard wrote:

> using your TDS what measurements are you looking for....TIA...deb
>
> sol wrote:
>
> Most distilled water is produced *locally* to where it is sold.
> Therefore, it is necessary to try various brands in your area, and
> see
> which one works best for you, or is the least conductive when tested
> with a meter (PWT, TDS, COM-100).
> Commercially sold distilled water can also be quite variable within a
> brand.
> sol
>
> . . wrote:
>
> > I'm wondering what brand of distilled water is the purest... ???
> >
>
>
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Whenever you find you are on the side of the majority, it is time to pause and 
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