Tank Overflow Question

Discussion in 'Beginner Discussions' started by LostAcc, 23 Mar 2012.

  1. LostAcc

    LostAcc

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    Hi, I've just finished reading the links/articles posted here (by belindamotion) ->

    1st-Time Mariner :) - Marine Aquariums of South Africa

    I also checked out a couple of other threads regarding overflows, so I now have
    some idea of what I want to do. I basically just want some confirmation that it
    can/will work and maybe some additional advice on the topic.

    Just a little history upfront, I used this tank to keep freshwater fish before, but I
    used cannister filters WITHOUT a sump. When I bought the tank however, I was
    told that it was initially prepped to work with a sump. On the right-hand side of my
    tank, I have 2x holes (that have since been covered up). Since the holes are already
    there, and can be opened up again, I would like to use an external/side overflow
    WITHOUT creating a chamber within the tank itself. The following examples are
    currently what I have in mind ->

    OPTION #1

    http://www.reefclips.net/data/media/62/P1000764.jpg

    http://www.reefclips.net/data/media/62/P1000763.jpg

    And ... OPTION #2

    http://img.photobucket.com/albums/0803/AfricaOffroad/0381440c.jpg

    ------------------------------------------------------------------------------

    Here are 2 pictures of the side in question (my Tank) ->

    svhvfs.jpg



    vrr42e.jpg

    I'd really want something that looks like OPTION 2

    - Could it / Will it work ?
    - How is it putting the added weight on the side of the Tank ?
    - Could I use the existing holes, or would it need to be cut bigger ?

    *** THANKS FOR YOUR TIME ***
     
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  3. Albert Terego

    Albert Terego

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    I think those holes are too low to be used as overflows. Why not use them as returns rather and build in a standard overflow (i.e. box with hole drilled into the bottom.
     
  4. Tremayn

    Tremayn

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    @LostAcc option two is a cost to cost overflow with an external overflow box. You can do it no problem, but you will have to remove the side panel and fit one that is a bit shorter so water can overflow into the external box.

    The drilled holes in your tank are too high to fit a slim internal overflow like what I have. Option one is a bad idea as you will have lots of fish, snails etc going into the sump
     
    Last edited by a moderator: 26 Nov 2015
  5. OP
    LostAcc

    LostAcc

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    mmmm, I was also worried about the height :(

    Honestly, I don't like the standard Overflows (when the box is inside the tank).
    I'm going to try some more reading/research and see what else I can come up with.
    If it has to be, it has to be though ... it's just not my first choice
     
  6. belindamotion

    belindamotion Google Master

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    Then look into something like this maybe...? it's from one of the Members who replied to one of the Links I gave you...:p
    0381440c.jpg
    AOR's Let's get it started .... - Marine Aquariums of South Africa ...think this is the Tank Thread ...:)
     
  7. OP
    LostAcc

    LostAcc

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    That is the one I have listed as OPTION #2
    The one I really want to / prefer to use :)

    Okay, so the tank height is 75cm (rounded of to 70cm for Glass Thickness)
    Those wholes are 5cm away from the rim of the tank
    I think that is high up enough - AGREE / DISAGREE ?
     
  8. RiaanP

    RiaanP Moderator

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    you do not say the size of the two holes.

    Can always use a slimline box on the inside. Advantage would be the full width of tank being used for surface skimming.

    Box that only go down past the 2 holes. But you need to built a Durso type at the outside. Basically a T piece, with open top end capped off. And in that cap a small hole with airline tube and valve. Other options are also available.

    But first you need the bulkheads that fit those holes.
     
  9. RiaanP

    RiaanP Moderator

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    Holes do not seem to me to be too high.

    Here is on my big old tank, note, tank is laying on its back
    10944b4611ca98546.jpg

    And overflow box completed, box only about 110mm high.
    10944b545505cc7bc.jpg

    and there is the example of the durso units outside the tank, not like normal inside the overflow.
     
    Last edited: 23 Mar 2012
  10. belindamotion

    belindamotion Google Master

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    :005::005:..sorry...I'm so low on MB at the moment that I try and stay away from JPEGS and work on the "description" of that you want....and only if I'm still clueless will I chow MB and look at PIC's...:lol:..don't worry...this only happens near the month...EVERY month...:005:
     
  11. OP
    LostAcc

    LostAcc

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    I'm going to measure them as soon as I can find my damn measuring tape again.
    A rough estimate puts them at about 4-5 cm

    Thanks for the other info as well
     

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