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03/24/2017, 08:36 PM
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#1 |
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Registered Member
Join Date: Feb 2014
Posts: 1,765
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Ro/di
I'm buying my first RO/DI unit. I'm looking towards the spectrapure refurbished models. They currently have a 90gpd 4 stage for $125 or a 5 stage 90gpd for $189 or a 4 stage 180gpd for $199. I will only have a 90 gallon tank set up so I don't really even need a 90gpd. Are the higher gallon per day units more efficient and produce less waste? Do the resin cartridges last longer if they have more stages to the unit? I like the idea of faster water when I am making it.
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“In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank. |
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03/24/2017, 08:51 PM
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#2 |
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Moved On
Join Date: May 2012
Location: flowery branch georgia
Posts: 3,644
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How "clean" is your tap water?
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03/24/2017, 08:58 PM
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#3 |
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Registered Member
Join Date: Feb 2014
Posts: 1,765
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Does this help?
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“In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank. |
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03/24/2017, 09:05 PM
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#4 |
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Registered Member
Join Date: Feb 2014
Posts: 1,765
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My lfs who is less than a mile away predicted 9 months on a 75gpd BRS model they sell. I live in St. Louis County, pretty big area of that matters.
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“In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank. |
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03/25/2017, 07:31 AM
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#5 |
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Moved On
Join Date: May 2012
Location: flowery branch georgia
Posts: 3,644
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I would do the 5 stage 90 gpd ,imo.
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03/25/2017, 08:44 AM
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#6 |
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Registered Member
Join Date: Feb 2014
Posts: 1,765
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Thanks.
__________________
“In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank. |
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03/25/2017, 12:17 PM
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#7 |
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Registered Member
 
Join Date: Oct 2002
Location: Dewitt MI
Posts: 5,051
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Are you on well water?
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Gary 180 gallon, 40 gallon sump, 3 250 W MH + 4 80W ATI T5's, MTC MVX 36 Skimmer, Apex controller Aquamaxx T-3 CaRx Current Tank Info: A 2 Barred Rabbitfish, Red Head Salon, Yellow/Purple, McMaster Fairy, Possum, 2 Leopard Wrasses, Kole, & Atlantic Blue Tangs, 2 Percula Clown, 3 PJ and 1 Banggai Cardinalfish , Swallowtail, Bellus and Coral Beauty Angels |
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03/25/2017, 04:18 PM
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#8 |
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Registered Member
Join Date: Feb 2014
Posts: 1,765
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No. City water.
__________________
“In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank. |
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03/25/2017, 05:48 PM
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#9 |
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Registered Member
Join Date: Mar 2017
Location: St. Louis
Posts: 88
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I had the same questions. Thanks for the answers!
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