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Old 10-21-2010, 11:05 AM   #1
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RO/DI unit

I was looking at installing an RO/DI unit and looking for some advice. I saw the Coralife one, Pure-Flo II Reverse Osmosis and DeIonization Unit at 50gpd. Anyone have one of these units? Are there any others I should look at first? Are they all the same? Is three stage filtering enough...to much...Thanks...

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Old 10-21-2010, 11:29 AM   #2
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I have the coralife maxxima. I am very pleased with it. If it`s an RO/DI unit 3 stage should be OK.

Reverse Osmosis Aquarium Water Quality: Maxxima RO/DI Units
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Old 10-21-2010, 11:50 AM   #3
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Thanks Mike. Does yours come with a tank to hold the water? The GE model I saw at Home Depot 35gpd came with it's own tank. The Coralife one did not. Just wondering how you make out if you don't have a tank to hold the filtered water. Do you just run it into your PWC tote? If it's 50gpd how fast does the water fill up? Thanks...

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Old 10-21-2010, 11:56 AM   #4
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I am getting the 100gpd version of the Pure Flo II this weekend. If I am not mistaken they do not come with DI, that is why I am getting the add-on DI.

Units from the hardware store will be for drinking water and are usually not nearly as pure as an aquarium RO/DI. Their tanks are also usually only a couple gallons, no more than five.
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Old 10-21-2010, 11:58 AM   #5
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So how fast does the water come out? Say I'm doing a 20g PWC how does it take to get 20g into a tote? I'm assuming it's slower than just turning on the regular faucet...

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Old 10-21-2010, 11:59 AM   #6
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The Coralife does come with a DI filter...
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Old 10-21-2010, 12:03 PM   #7
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I dont have the tank. I just run it into my 5 gallon water jugs that sit inside a rubbermaid tote just in case they overflow in my tool shed. I just have a water hose connection. 50 gallon a day is plenty for me.
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Old 10-21-2010, 12:04 PM   #8
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How long do you wait for the 5g jug to fill.
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Old 10-21-2010, 12:09 PM   #9
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According to the users manual there is a GAC canister, Carbon block, micron filter, and RO membrane.
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Old 10-21-2010, 12:11 PM   #10
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It all depends. In the dead of summer 3-4 hours. In the dead of winter 8-9 hours. Spring and fall usually in the middle. Depending on the water temp how fast it goes through the RO membrane.
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Old 10-21-2010, 12:11 PM   #11
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hmmm...the one I looked at in Big Al's (I'm in Ontario, Canada) shows...well here is the link...

Pure Flo II Reverse Osmosis and DeIonization Unit
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Old 10-21-2010, 12:13 PM   #12
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Is there an electrical connection to this or is it just water pressure? I know that they give you the option of getting a pressure pump but it's just water pressure...yes?
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Old 10-21-2010, 12:23 PM   #13
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Just water pressure for me. But I have heard of others esp. those on wells having to use some device to boost pressure.
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Old 10-21-2010, 09:46 PM   #14
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Link continues to load, can't see anything.

I am getting the 100gpd unit with a pump that will plug in to the wall. The service company I was working for had too many issues with needing pumps added on to units they installed so I knew I wanted one with a pump. I am on a well.
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Old 10-21-2010, 09:47 PM   #15
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Hmmm...it loaded for me. Here is the description...

The Pure-Flo II 50 GPD Reverse Osmosis Unit purifies water for aquarium use. Removes water hardness, heavy metals, toxins and other tap water impurities. Included with this unit: 3 clear filter canisters, 1 deionization cartridge, 1 filter cartridge, 1 carbon block filter cartridge, TFC membrane and faucet attachments. Pure-Flo II units are economical, easy to use and wall mountable. You can use these units with chlorinated and well water. Great for both freshwater and saltwater aquariums.

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Old 10-21-2010, 09:54 PM   #16
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Looks like they swapped out one of the carbons for a DI.
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Old 10-21-2010, 10:01 PM   #17
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It looks like they swapped out one of the carbons for a DI.
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Old 10-21-2010, 10:03 PM   #18
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Hmmmm...I think I might be able to get a better deal, even with the shipping, through Dr. Fosters and Smith.
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Old 10-21-2010, 11:33 PM   #19
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Give ebay a search you can find some on there for cheap!

I got mine on there and had the water tested at my LFS to be between 0-1 ppm
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Old 10-22-2010, 01:29 AM   #20
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I didn't even think of that. Thanks...

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