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I used distilled water for the addback for that exact reason
filled with tap, 30 gallons is a lot to buy, and let it run for about 2 weeks before I put plants in it
just got one of them mr clean auto dry carwash things to try instead of buying water
you are supposed to use RO if you use the addback, but I dont do well with rules...
Last edited by IMgreen; 05-04-2008 at 02:29 AM.
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