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Old 01-20-2011, 07:51 PM   #11
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you meant 6 months, correct?
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Old 01-20-2011, 09:58 PM   #12
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you meant 6 months, correct?

HAH yes I meant 6 months. and the DI will need to be replaced sooner than that even.
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Old 01-21-2011, 02:02 AM   #13
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Could you not simply mount the DI unit upright? Would flushing the system help any at all? I am considering installing mine in the guest bathroom so it will be out of the way, since all it will be used for is my aquarium. I could easily mount all the filters upright.
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Old 01-21-2011, 10:28 AM   #14
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Sorry, I'm confused about what is the recommendation here. I too am looking for an RO/DI unit. I want to mount it up in my garage and can do it in any configuration. I also want to hook it up to my hose versus permanently attaching to a sink.
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Old 01-21-2011, 10:33 AM   #15
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Air water ice, Filter guys, and bulk reef supply all have good units at decent prices.
that's a good recommendation.
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Old 01-21-2011, 10:35 AM   #16
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i bought a couple units from them as well. btw, that taste filter on top is nothing more than another carbon filter. you really don't need it.
Which is the taste filter?
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Old 01-21-2011, 10:40 AM   #17
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the final filter. check his link. you see it at the very top of the unit.
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Old 01-21-2011, 11:47 AM   #18
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You can mount the DI unit upright the problem is those smaller DI units just dont last as long and they are far less efficient than a true vertical 10" unit as seen on the filtersguys RO/DI unit 3rd from the top. DI binds to the final TDS left in your water after the RO membrane. It litterally gets used up. The small units are subject to whats know as surge TDS. as it approaches the end of its life the TDS reading can go from 1-2 to 50-60 in just a few gallons of water.

As with everything with this hobby if you opt to buy quality products that will last you and your reef will be much happier in the long run.
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Old 01-21-2011, 12:01 PM   #19
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So what's the recommendation for a 125 gal aquarium?
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Old 01-21-2011, 12:23 PM   #20
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i would purchase a R.O.D.I. unit that doesn't do more than 75 gallons per day.
a 50gpd or 75gpd is fine. the 100gpd units and above waste a lot more water.
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