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  1. #1
    Senior Member thien's Avatar
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    Oct 2003
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    290

    pure distilled or RO?

    Hi,

    I currently buy my water in 5G jugs and have access to either pure distilled or RO water. Which is better?
    thanks.
    thien

  2. #2
    Senior Member
    Join Date
    Nov 2003
    Posts
    6,316
    Ether one of the two would be good to use so if the RO water is FREE go for that. High quality distilled water is 100% pure all the time while RO water is about 99.99% pure when the RO systems filters are in top condition. That # will fall if the RO system is not maintained. For our home aquarium use the difference is insignificant.
    Rob

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