jos3f Posted September 30, 2010 Share Posted September 30, 2010 Hey so with the Bulk Reef Supply group buy going on right now, I figure this would be a great chance for me to snag an RO/DI unit for a pretty good price. I've heard pretty good things online about BRS's unit, but I'm wondering if I really need the 5 stage model vs. the 4 stage. It's only like a $30 difference but I'm on a tight budget especially since I went on a crazy spending spree through them, lol. It seems like if I can get 0 TDS with the 4 stage model it should fit my needs since I'm just starting up a 75 gallon. Just wanted to get some input from people who had experience with RO/DI units. Quote Link to comment Share on other sites More sharing options...
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