For those who need to have VERY pure distilled water to make CS with the TDS is not sensitive enough. I have to have a PWT (or a COM-100 would work also). Correct me if I'm wrong but the TDS will not measure below 1.0. And I have to have distilled water of purity well below that. While I also measure the conductance of my finished CS, my primary use for the PWT is making sure my distilled water is pure enough.
sol

Tad Winiecki wrote:
Oops- I didn't scroll down, they also have Hanna TDS meters on sale for $31.95, 11 in stock. The one they gave me with my generator says Milwaukee, made in Portugal. It says it is calibrated for CS, I just swish it a little and it comes up with a number.


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