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Old 10-21-2012, 12:00 AM   #1
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RO/DI units

I am thinking of getting a RO/DI but there are a lot of different types out there. I've seen 4, 5 and 6 stage units, chloramine units ect. Can anyone tell me the difference between these and offer a suggestion?

The lesser of two evils is still an evil.
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Old 10-21-2012, 12:23 AM   #2
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The stages are more of a marketing hype than anything. All you really need is a good unit that has a sediment filter, carbon block, membrane, and di cartridge (ie 4 stage). Chloramine specific units generally have a larger carbon block, but I used a standard 4 stage with my tap that used chloramine. Look at the better brands like BRS, Vertex, Spectrapure, Melevsreef, etc. I don't recommend, after using one, the cheaper ebay units like purewaterclub.

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