Help chosing which ATU?

Discussion in 'General Discussions and Advice' started by ricky, 11 Dec 2014.

  1. ricky

    ricky

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    Hi All

    What is a good Auto top up unit to get?
    As i have heard some horror stories of certain brands overflowing the tank.
     
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  3. viper357

    viper357 Admin MASA Contributor

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    Depends how much money you want to spend I suppose :p or you could DIY one.

    The TMC ones were giving issues when they originally came out, although I have read that they have since solved those issues TMC V2 Auto Top Up System - R995.00 : Jungle Aquatics, Petshop Superstore and Retail Outlet

    This is a new one, got no idea if it works or not, looks very good though. AutoAqua Smart ATU Top-Up - R2,208.00 : Jungle Aquatics, Petshop Superstore and Retail Outlet

    The Tunze osmolator has been around for a while TUNZE GmbH High-Tech Aquarium Technology: Catalog, they also have a nano version.

    There's also a few on here - Auto Top-Up Systems I had the Reef Octopus one, but it kept sticking and overfilling.
     
    Last edited: 12 Dec 2014
  4. RiaanP

    RiaanP Moderator

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    I use SAGA units. Not a cheap option as DIY, but it does have certain features that helps a lot.

    Using program B, and set to 1 minute. Meaning, both sensors are in the return chamber. Since float 2 triggers, it must reach float 1 within a minute else it will stop and an alarm will go off. Also if it runs less than 5 seconds, the alarm will also sounds.

    And the maximum time it can run is 1minute. other options are 2 and 3 minutes and then no limit.
     
  5. ricky

    ricky Thread Starter

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    Thanks guys.
     
  6. Hammerhead

    Hammerhead

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    Howsit,

    I have the Tunze Osmolator as well as the Reef Octopus. The issues I had with one of them was purely down to lack of maintenance on my part. The Osmolator uses an optical level sensor which needs cleaning if u dose kalk, the manual makes mention of this as well, just make sure whichever brand u buy is well maintained if it uses optical or float switches. Another issue I experienced was burning out of the pump due to it not being self priming. I have read of others replacing the pump once burnt with one from a camping or outdoors shop as they are also 12v. (Can also use as a DIY option)

    I use my Reef octo to fill RO from a secondary chamber but have yet to have any issues with it. Luck of the draw I guess.

    Please note that I love my tunze and not bashing any brand but just making you aware of some of the issues I had so you can make an informed decision.
     
  7. Anita

    Anita Sponsor

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