R/o water

Discussion in 'Beginner Discussions' started by wildbunny, 3 Jan 2008.

  1. wildbunny

    wildbunny

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    Hi what is r/o water and ow do i make it?:p
     
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  3. Kanga

    Kanga Retired Moderator MASA Contributor

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    HI wildbunny, it Reverse Osmosis which is a filtering process through a serious of filters and mebranes.

    Speak to Millepora from Eco Aquatics, he sell good R/O (specificly designed for Reefkeeping) units for about R1500, very worthwhile item to have
     
  4. Zookeeper

    Zookeeper

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    Buy your self a RO unit and you will not regret it.Pure water always on tap when ever you need it.
     
  5. Alan

    Alan Admin MASA Contributor

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    Eco Aquatics or Northlands pets sell RO units, both are good value for money.
     
  6. Galibore

    Galibore Retired Moderator

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    Hi Wildbunny,

    Reverse Osmosis water is basically water which has passed through a membrane through the process of reverse osmosis (unsurprisingly :)).

    But because our tap water is normally full of chlorine and other contaminents, the membrane would normally not last very long as it gets damaged by these contaminents. To reduce this problem, the water is first passed through a sediment filter which removed solids and then through a a carbon filter which removed other toxins. The water aftter the first two stages are basically filtered water. Then it's passed through the R.O. membrane which leaves you with very clean water.

    A lot of the times guys also add a fourth stage called DI. This is a deionizing resin which removes the last bit of minerals from the water to leave you with probably the purest water available outside lab conditions (AFAIK).

    This is then used to top up your evaporated water and if you mix your own salt water, used to do that as well.

    The reason for using RO or RODI water is simple. If you're like most reefkeepers and try and keep the nutrient levels in your aquarium water as low as possible, it just makes sense not to add the extra nutrients and toxins you would using normal tap water. Probably the most notible of nutrients/toxins are phoshate, nitrate and copper.

    HTH

    And yes, as Alan and Kanga mentioned, those guys have awesome RO and RO/DI units :)
     
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