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#1
October 8th 07, 01:05 AM
posted to rec.aquaria.marine.reefs,rec.aquaria.freshwater.cichlids,rec.ponds,rec.aquaria.misc,rec.aquaria.freshwater.goldfish
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how long does an r/o unit take to make clean water?
On Oct 3, 4:38?pm, KurtG wrote:
Big Habeeb wrote: Looks like I'm dumping what's in the tank now anyway once I fill it with hose water and test the setup...which I'm guessing I shoulda done in the first place  Mitch Do you have a TDS meter? It's critical for figuring out if the unit is working well or not, or when Many people do not realize that a TDS meter is unnecessary. Then there is the issue of TDS as TDS, as NaCl and CaCO3. A conductivity meter can not measure any of these values/say. There is no way a TDS meter can tell you how many ppm of Total Dissolved Solids there are in a sample. My husband says the same can be acomplished by floating a meat thermometer in the water for 5 minutes. if the setting is above well done or broasted, the total dissolved solids are within normal levels. 
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