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high ro/di
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  1. Water Chemistry
    I recently purchased a 6 stage RO/DI unit. I have it attached to a deep well. I realize that 660 ppm is very high but that's what I have straight out of the faucet. Water coming from the system has 10-30 ppm based on a HM tds meter. Now I read on most systems that they produce 0 ppm when the...
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