0 ppm or 1 ppm is ok out of the DI - I'd change the DI when it goes higher than 1 ppm.
Our DI goes from a dark purple (when wet it looks almost black) to a light sand color.
Russ
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0 ppm or 1 ppm is ok out of the DI - I'd change the DI when it goes higher than 1 ppm.
Our DI goes from a dark purple (when wet it looks almost black) to a light sand color.
Russ
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