Vacation top off

Discussion in 'General Discussions and Advice' started by Paul B, 30 Jan 2013.

  1. Paul B

    Paul B

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    My tank, like most tanks use an auto top off that usually works great, but the last time I went on vacation, a bubble got into it and the tank sitter didn't notice the water level went down 7" which of course killed all the corals near the top of the tank.
    So I brought back the device I used to use before I had an auto top off. It is just a plastic 2X4 or a real 2X4 or piece of plywood could be used.
    I just drill a hole in it that will fit the top of a 5 gallon water cooler bottle that I happen to have laying around.
    I put the plastic top on the water cooler bottle that comes with it when it if filled with water after I drill a 1/2" hole in the cap.
    Now I just fill the bottle and invert it over the tank. (The batteries are just in the picture for the demonstration)
    I make the hole in the 2X4 so that the bottle neck just touches the water.
    As the water level goes down, air enters the bottle and the water level in my tank stays level. This will fill my tank for 8 days and I have been using this for decades with never a problem.
    This is exactly how it works in a water cooler.
    If you like, you can also put in whatever you want to dose for the week.
    [​IMG]
     
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  3. Nemos Janitor

    Nemos Janitor

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    Yup great Paul. Just like the bird feeders.

    One coud also jimmy a ball valve at the bottom and top to allow for easy topup of the 25l bottle.

    Thanks for the idea:thumbup:
     
  4. Paul B

    Paul B Thread Starter

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    . Remember you just can't invert the open bottle over the tank. You need that cap on with the hole in it so the water in the tank doesn't mix with the tank water and dilute it.

    It is even better to add a short tube to into the bottle cap. The tube will make it easier to adjust the water level and make it less likely that the tank water will be diluted by fresh water. An even better system would be to use two 1/4" tubes into the bottle cap with one a little shorter. That way, almost no fresh water will mix with the salt water before it is added.
     
  5. MistaOrange

    MistaOrange

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    Nice idea thanks for the tip @Paul B:thumbup:
     
    Last edited by a moderator: 26 Nov 2015
  6. Albert Terego

    Albert Terego

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    Awesome idea - I would need to do this then in my sump as this is the area where the water level actually drops
     
  7. Courtney99

    Courtney99

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    Hi guys,

    Was thinking the other about this just the other day but only for my soon to be nano using a 2 litre coke bottle.

    It works on the same concept of those resevoirs for dogs waterbowls,once the level goes down enough the vacuum is broken and a few glugs of freshwater go into the tank just enough to create another vacuum?
     
  8. RocketRooster

    RocketRooster

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    Use a new 2l Coke bottle, the one you got now has holes in it :)
     
  9. MistaOrange

    MistaOrange

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    :lol::lol::lol:
     
  10. Courtney99

    Courtney99

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    HAHA,that was a 1 litre bottle!But yes it would be a good idea to not use that one:biggrin:
     
  11. MistaOrange

    MistaOrange

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    At least you going bigger;)
     
  12. RocketRooster

    RocketRooster

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    Yes! And so it begins as the B.E.A.S.T takes over.











    (Bigger Equipment Acquisition Syndrome, Terminal.)
     
  13. MistaOrange

    MistaOrange

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    :lol::lol::lol:
     
  14. RocketRooster

    RocketRooster

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    Hey, it's no laughing matter. It's serious! I can feel it intruding upon me edges of my Psyche!


    @Ridwaan is a lost cause, he's hopelessly infected! :)
     
    Last edited by a moderator: 26 Nov 2015
  15. RiaanP

    RiaanP Moderator

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    check first that the vacuum does not collapse the Coke bottle. Especially on a nano.
     
  16. Paul B

    Paul B Thread Starter

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    I use a Coke bottle in my 3 gallon worm tank
     
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