Check the tds of the the water that comes out of the RO, but BEFORE the DI. You'll have to take it apart to do that. Just disconnect the line between the RO and the DI, and collect that water to test it. How many gpd is your RO?
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~ Mindy
SPS fanatic.
Last edited by Myka; 03-19-2008 at 12:50 AM.
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