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Old 01-28-2013, 12:03 PM   #1
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TDS Questions

I understand that RODI is the way to go for saltwater and I plan to eventually purchase an RODI unit for home. In the meantime, I have been using RO water (Glacier) from a machine at 25 cents a gallon. I recently bought a TDS electronic meter and it shows .003. I'm assuming that is pretty good? What are you folks with RODI systems getting as readings? What level do you get up to before swapping membranes?

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Old 01-28-2013, 12:05 PM   #2
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.000 is what a Ro/Di produces. Filter swaps usually happen at the first signs of TDS at .001-.002.
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