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  1. #21
    Not quite a "deep" bio chamber but here's JBRs 1.1m bio chamber on a nice setup:


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  3. #22
    Quote Originally Posted by familyman View Post
    I dont like static media, because even if its after a drum filter, it will still collect fines, and then you have to clean it periodically or risk a bad bacteria build up.

    David
    Hi,

    Isnít it better if it collects fines after drum filter?


    Sent from my iPhone using Tapatalk Pro

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  5. #23
    errrm , nope, not in my book ,lol.

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  7. #24
    Extreme Koi Member Rank = Adult Champion pip895's Avatar
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    Provided you clean it up before it builds up enough to block flow and go anerobic then I would say better at the bottom of or in among some static media than floating as fines in the pond - definitely. I am prety relaxed about a bit of mulm buildup - my anoxic pond is heavily planted and the way the system works it acts as a bit of a settlement chamber - all I do is flush the BD once a week. Doesn't appear to cause any problems..
    6000g unheated in ground koi pond
    +3000g lily/Anoxic pond attached
    28 koi (40 to 65cm)
    Bottom drain & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  9. #25
    Extreme Koi Member Rank = Adult Champion pip895's Avatar
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    Quote Originally Posted by RS2OOO View Post
    Not quite a "deep" bio chamber but here's JBRs 1.1m bio chamber on a nice setup:

    He may well end up with that sort of setup but it would have been nice to have used some of the depth he has. JBR haven't got the equipment to weld the thicker gauge of material that would be necessary to go much over a meter in depth. Maybe stainless steal might be an option?? might get expensive though.
    6000g unheated in ground koi pond
    +3000g lily/Anoxic pond attached
    28 koi (40 to 65cm)
    Bottom drain & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

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  11. #26
    Senior Member Rank = Grand Champion andikoi's Avatar
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    how about a blue barrel,these are a nice size to put bio in,andi

  12. #27
    Member Rank = Nisai Simon Fish's Avatar
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    Quote Originally Posted by andikoi View Post
    how about a blue barrel,these are a nice size to put bio in,andi
    I have been thinking about the possibility of this.
    Relatively cheap to buy. 120lt, 220lt.
    Is it possible to fit a 4" connection with it being circular?
    Or would it only work on 2", or 1 1/2"?

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  14. #28
    Senior Member Rank = Grand Champion andikoi's Avatar
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    if you cut the hole then warmed the area up with a heat gun then fitted connector it should be fine,ive been thinking of something similar as i have a freestanding spindrifter top that would sit in bottom perfect lol,andi

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  16. #29
    Quote Originally Posted by pip895 View Post
    Provided you clean it up before it builds up enough to block flow and go anerobic then I would say better at the bottom of or in among some static media than floating as fines in the pond - definitely. I am prety relaxed about a bit of mulm buildup - my anoxic pond is heavily planted and the way the system works it acts as a bit of a settlement chamber - all I do is flush the BD once a week. Doesn't appear to cause any problems..
    the fines that get through the drum screen, are so fine i cant see them in the pond water, they have no effect on clarity, but over time i do get some very fine dust / mulm, settling out in the clean side of the drum, I just flush it every month or so with a hose, thats not a problem, and its a very small amount, but I wouldn't want the job of cleaning it out of static media periodically, kind of defeats the object of having a drum.

    Clean media works best, couple of problems I found when cleaning out static media, firstly, although it looked quite clean, as soon as i disturbed the media, (in this case jap matting) it was absolutely choked with mulm, and secondly, after rinsing it out with pond water, it lost loads of its bio bugs, and I got traces of ammonia and nitrite for a period, till the bio bugs built up again.

    David

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  18. #30
    Member Rank = Nisai Simon Fish's Avatar
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    I suppose the bigger the barrel ( circumference)
    Then the easier the connection.
    Let us know how it goes, then I might do it.

  19. #31
    Senior Member Rank = Grand Champion andikoi's Avatar
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    ive got one thats perfect its one of the stainless nexus drum things,its already got inlet and outlet and a 1 1/2" wast at bottom,but i cant be bothered hahaha,i was thinking of just keeping nexus but i can sell that lol,andi

  20. #32
    Member Rank = Tosai Sim's Avatar
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    Years ago when I had a multi bay filter, some will remember them :-)
    We used to put fresh water shrimps in the jap matt, mine used to be covered in them, they used to keep the bays spotless.
    The koi used to love them too, never really had to clean them out.

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  22. #33
    Senior Member Rank = Grand Champion andikoi's Avatar
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    is this going to be static or fluidised,i always associate bio chambers being fluidised ,andi

  23. #34
    Member Rank = Nisai Simon Fish's Avatar
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    I was thinking air stones in the bottom and how ever many litres of k1 bubbling around.
    Another idea I have been pondering is using a 50 gallon cold water tank that I took from a job.
    Has flat sides.

  24. #35
    Senior Member Rank = Grand Champion andikoi's Avatar
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    not good for cleaning though as i know from having one i use for water for chickens,has strengthening ridges where muck gathers,better off with something smooth all around,just buy my steel one off me haha,even has an easy section from a 300 i got to go with it £60 its yours lol,andi

  25. #36
    Member Rank = Nisai Simon Fish's Avatar
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    Yes the supports do cause concern,
    There's a grid of squares in the base.
    That's what's held me back from trying it.
    £60. Is that with all the the connections attached and full of k1.??

  26. #37
    Senior Member Rank = Grand Champion andikoi's Avatar
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    Lol i wish.no k1 but have got about 20ltrs of crystal bio you can have and its 28" deep x 32" w and 38" from floor to top.andi
    Attached Images Attached Images

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  28. #38
    Member Rank = Nisai Simon Fish's Avatar
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    That's an interesting option.
    But I'm tighter than a Yorkshire man!
    Banned from getting any more pond bits at the moment,
    Got to try and make a 1000lt ibc tank blend in somewhere.

  29. #39
    Senior Member Rank = Grand Champion andikoi's Avatar
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    easy just clad with timber,looks like i might have to use it mydelf then ffs lol,andi,andi

  30. #40
    Extreme Koi Member Rank = Grand Champion john1's Avatar
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    Simon,you can get radial tank connecters for the curve of a tank.
    https://www.ebay.co.uk/itm/110mm-4in...2JsA:rk:1:pf:0
    John

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