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  1. #1
    Extreme Koi Member Rank = Rokusai Ianb's Avatar
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    DIY moving bed filter

    As per title, I need something about 150 liters just wondering if anyone has had issues with the wham bam boxes bowing, bearing in mind that I intend to use 80% of its capacity which would then be 120 liters with 60% media and 40% water.
    At the moment I am leaning more towards the barrel option as they are purpose made for holding liquid.
    Any thoughts or advice would be great
    Thanks
    Ian



  2. #2
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
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    I've used the biggest wham box I could find (think it is around 100l or so) and I have no issues with the side bowing.

    You could make a wooden frame around it to act as a brace. Plus you could put pir board in the gaps and it'd be insulated too.

    Sent from my Pixel 8 using Tapatalk
    13,000L fibreglassed raised pond with window

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  4. #3
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    I've use the clear wham boxes for temporary water holding, but find they crack too easily for long term use.
    either a blue barrel or black water tank would be a better option...

    these boxes are bullet proof though, or very strong anyway
    from 72 litre to 455 litre various sizes and colours.

    https://www.supertuffeurope.com/mobi.../plastic-tanks

    Last edited by davethefish1; 04-02-2024 at 04:01 PM.

  5. #4
    Extreme Koi Member Rank = Rokusai Ianb's Avatar
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    Thanks guys, it was the stronger black when box that was considering

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  7. #5
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Ianb View Post
    Thanks guys, it was the stronger black when box that was considering
    Used them No problems at all . Got a sieve from john1 built using one then did a mb and was spot on in the black wham

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    "we are water keepers first"

    Johnathan

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  9. #6
    Extreme Koi Member Rank = Rokusai Ianb's Avatar
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    I have decided on a 120 liter blue barrel. The flow rate going thought it will be 5000 liter per hour which is pump fed by 1.5 inch pressure.
    I intend to put the inlet about 18 inch from the bottom. The gravity fed outlet will be in the top third of the barrel with a short piece horizontally the a short vertical with a strainer almost like a nexus.
    I have about 70 liters of K1 media which has about 10 liters of micro mixed in which I intend using.
    Anyone managed to get this flow rated with a 2inch outlet which I would prepare as I have all the fittings or would 3 inch be better
    Any idea if the micro will clog the strainer I was thinking of the kockney koi type of strainer.
    Thanks
    Ian

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  11. #7
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Ianb View Post
    I have decided on a 120 liter blue barrel. The flow rate going thought it will be 5000 liter per hour which is pump fed by 1.5 inch pressure.
    I intend to put the inlet about 18 inch from the bottom. The gravity fed outlet will be in the top third of the barrel with a short piece horizontally the a short vertical with a strainer almost like a nexus.
    I have about 70 liters of K1 media which has about 10 liters of micro mixed in which I intend using.
    Anyone managed to get this flow rated with a 2inch outlet which I would prepare as I have all the fittings or would 3 inch be better
    Any idea if the micro will clog the strainer I was thinking of the kockney koi type of strainer.
    Thanks
    Ian
    i ran my pump fed filters on the old pond with two x 50mm waste return pipes and a drop of about 2 ft.
    i ran them at about 5000 lph with an aquaforte 20,000 vario at about 70% because of the long run of pipework to the filters.

    But they would swamp the filters if i tried to run them any faster. so maybe 3" or 4" would be a better bet and have some spare capacity?
    Last edited by davethefish1; 14-02-2024 at 03:01 PM.

 

 

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