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Old 07-21-2012, 04:09 PM   #1
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Location: Columbus, IN
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Question Can someone explain what RO and DI actually means?

I know what it means by definition...but what is the difference between RO water and DI water? Or is the water both at once or does it have to be both? How is it different? I'm not sure if this falls under chemistry...but it's not something that makes sense to me.

I can't say I've ever gone anywhere and seen a store selling something labeled reverse osmosis water....distilled water yes, but not the other.

55g Reef Setup: 2 Percula Clownfish,5 Blue Legged Hermit Crabs,1 small Kenya Tree Coral,1 Toadstool,2 Yellow Sponge, and 1 Firefish.
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Old 07-22-2012, 02:30 AM   #2
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Just different processes of filtration. You can have RO water or RO/DI. water, RO/DI just means it has been through both processes.

A lot of filtered water sold in stores is RO water.. The military has special units just for the purpose of making RO water for human consumption.
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