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12/28/2006, 09:24 PM
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#1 |
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Registered Member
Join Date: Apr 2004
Location: Derry, Maine
Posts: 164
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RO to RO/DI upgrade questions
Dumb question: I'm adding a di stage to my ro unit. The output of the ro becomes the input to the di right? It should be sendiment filter-carbon filter-reverse osmosis-di? I get 0 tds on output so I'm guessing I got it right (I was getting 3 or 4 on output without the di stage). How many gallons of water should I throw out before I can start using the output.?
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12/28/2006, 10:02 PM
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#2 |
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Team RC Member
 
Join Date: Jul 2006
Location: STL
Posts: 14,754
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The DI is always the last stage of the filtration. Out of the RO into the DI. If you are getting 0 tds then you are good. A gallon is all you need to purge before use. Hope this helps.
__________________
-Brett 180g Marineland Starfire In-Wall 278 gallon system |
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12/28/2006, 10:06 PM
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#3 |
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Registered Member
Join Date: Apr 2004
Location: Derry, Maine
Posts: 164
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Thanks drummer!
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12/29/2006, 08:46 AM
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#4 |
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.Registered Member
Join Date: Sep 2006
Location: Cincinnati, Ohio
Posts: 4,857
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3 bed volumes should be sufficient on the flush water on new DI resin.
And right - RO permeate goes to the DI input. Russ |
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