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) ->

    [​IMG]



    [​IMG]

    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. LostAcc

    LostAcc Thread Starter

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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
    [​IMG]
    AOR's Let's get it started .... - Marine Aquariums of South Africa ...think this is the Tank Thread ...:)
     
  7. LostAcc

    LostAcc Thread Starter

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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
    [​IMG]

    And overflow box completed, box only about 110mm high.
    [​IMG]

    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. LostAcc

    LostAcc Thread Starter

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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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