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  1. #1
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Diy moving bed k1

    Hi people I have probably miss 100s of threads asking this so I apologize in advance. After a few mess ups by not planning before building the pond I've got my self in a tight space as to filter room after a moving bed I have around 2x3x2 ft I was wanting to building the mb but other than knowing a want 1 and can be good bio for pond I don't know much else . Am building a cloverleaf style multibay gravity fed . Then to mb I was thinking of using 2in inlet/outlet . But am lost on where to place inlet/outlet and pond pump is it best to have dry mount after mb . Thanks hope I have made so sort of sense

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    Freddyboy the legend

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  2. #2
    Draw a picture


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  4. #3
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by bigcarpchaser View Post
    Draw a picture


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    You havnt seen my drawing minds haha

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    Freddyboy the legend

    "we are water keepers first"

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  5. #4
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Bad drawing never was any good at art

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    Freddyboy the legend

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  6. #5
    Nothing wrong with that lol
    What’s the first section then? Settlement chamber of some kind?


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  8. #6
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Sorry should have said . So it's bottom drain to multibay with size being an issue I've gone more the cloverleaf style over a long multibay. It as the arrows go it'll be bd then first chamber will brushes second and 3rd will be jap mat 4th chamber of grog (Can all be changed for better ideas on media not set in stone)2in outlet from 4th to the mb ?

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    Freddyboy the legend

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  9. #7
    Looks rather labour intensive to me all that brush cleaning urrghhhh
    Your Jap Mat/Grog is doing bio just not as well as your MB will be so that looks like a waste of your available space to me. I don’t see the point of having 3 lots of inferior bio then a small “good” one.
    You could go brushes(sieve?)/mb/jap mat which is what an “Evolve” without a Draco does, or static k1 then mb or just a sieve then mb. Nice and simple. You’ll still have some manual labour cleaning the mexhanical filter, there’s no getting away from that unless you have a drum.
    Alternatively have you considered Trace”s blue barrel option? That might give you a decent solution in the space you have. You might even get 3 barrels in your available space.
    Just a few ideas to chew over


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  11. #8
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Sieve Don't really have money at min to fork out of one have eyed up eBay second hand with nexus think that'll be next year or 2 depending on how business gos . Labour at the moment am still in that silly place where I enjoy it messing on with my filters and fish but in -2 maybe I won't as much haha . Havnt heard of the blue barrel?? Just had a look and at a push I could fit 6 150lt water butts in . Thanks for your help mate

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  12. #9
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Would sieve and big bio be enough. If I push money could be a option

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    Freddyboy the legend

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  13. #10
    The sieve would likely let through a load of fines which would just accumulate in your bio. I wouldn’t recommend.

  14. #11
    Banned Rank = Mature Champion Trace's Avatar
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    Quote Originally Posted by Ajm View Post
    Sieve Don't really have money at min to fork out of one have eyed up eBay second hand with nexus think that'll be next year or 2 depending on how business gos . Labour at the moment am still in that silly place where I enjoy it messing on with my filters and fish but in -2 maybe I won't as much haha . Havnt heard of the blue barrel?? Just had a look and at a push I could fit 6 150lt water butts in . Thanks for your help mate

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    So that's room for about 5 x AntyPod moving bed's ... minimum 600Litres of K1 for bio ... that would be a significant amount ...

    I'm at the mo deep in trying to get the plans drawn up as time permits ...

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  16. #12
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Trace View Post
    So that's room for about 5 x AntyPod moving bed's ... minimum 600Litres of K1 for bio ... that would be a significant amount ...

    I'm at the mo deep in trying to get the plans drawn up as time permits ...
    Ah brilliant didn't think it would be any where near 600 best get saving for media . What media be best to put before mb

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  18. #13
    Extreme Koi Member Rank = Nanasai Rog.G's Avatar
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    Quote Originally Posted by Toffee View Post
    The sieve would likely let through a load of fines which would just accumulate in your bio. I wouldn’t recommend.
    I think a sieve would take out more fines than brushes, jap Matt, grog etc (I’m with bigcarpchaser) and anyway a mb if designed properly is self cleaning, that’s the whole idea of them isn’t it.
    From my own experience of over 30 years spending time and money trying to achieve good water with various systems I would keep it simple. Mechanical filter such as a sieve or drum then mb.
    Save,wait, save, wait, save,wait, then buy a Draco or AEM drum followed by a mb and you will be forever smiling and have lots of time to concentrate on important things like studying your koi and keeping an eye on their health etc.

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  20. #14
    To answer your original query...I would have a 4 inch inlet and a 1.5 or 2 inch outlet to pump. Or better still 4 inch inlet and outlet with the outlet pipe reducing down with a rubber reducer to whatever size the pump takes.

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  22. #15
    Extreme Koi Member Rank = Nisai nugster's Avatar
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    Quick question - what type of UV are you planning to run?

    I am 99.9% sure you are planning to use an external unit but just in case you are planning to save space with an internal unit you shouldn't be using an internal UV like the Amalgam's with a moving bed as it would destroy the bacteria on the media.

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  24. #16
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    I am a bit old school and like the vortex,blue barrels sounds a good option so maybe from b/d 4ins to vortex four ins to static bed of k1 [which can be boiled to clean ] then 4ins to moving bed then pump to shower to pond.

    Vortex are good to remove heavy solids but not the finer ones hence static bed,useing three barrels wont take up much room either.
    John

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  26. #17
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Thanks for all your comments and help . It's an external inline uv . Think am going to run a sieve but try to change the screen for a finer one . would have loved the drum every one talks about but well well well beyond budget at the minute.

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  28. #18
    I built my pond and forgot to allow for a filter so cut back a little and made a 3 barrel design with sieve style first filter similar to this design https://www.youtube.com/watch?v=YYFDAIUuk7E I just adapted to suit my space and orientation. On mine what is his LHS barrel I have 50kg alfagrog and a constant stream of water that cleans the sieve dirt tube in to the 5 filter socks and in the middle barrel I have approx. 4kg of K1 this flows in to the RHS barrel in 3" pipe with the 55w UVC in to a MB with approx. 4kg of K1 then back to the pond I also have a connector pipe between the LHS and RHS barrels so when the pump turns off to back flush the bottom drain (twice a day) the two barrels drain and then when they fill back up the alfagrog barrel has a refresh of water to prevent any stagnation that I thought could happen. If you strapped for space and what a MB this could be a possibility for you. If you look at his other videos he as a really nice filter design that I wish I had the space to build
    Last edited by gorilla1q; 05-06-2018 at 04:29 PM.

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  30. #19
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by gorilla1q View Post
    I built my pond and forgot to allow for a filter so cut back a little and made a 3 barrel design with sieve style first filter similar to this design https://www.youtube.com/watch?v=YYFDAIUuk7E I just adapted to suit my space and orientation. On mine what is his LHS barrel I have 50kg alfagrog and a constant stream of water that cleans the sieve dirt tube in to the 5 filter socks and in the middle barrel I have approx. 4kg of K1 this flows in to the RHS barrel in 3" pipe with the 55w UVC in to a MB with approx. 4kg of K1 then back to the pond I also have a connector pipe between the LHS and RHS barrels so when the pump turns off to back flush the bottom drain (twice a day) the two barrels drain and then when they fill back up the alfagrog barrel has a refresh of water to prevent any stagnation that I thought could happen. If you strapped for space and what a MB this could be a possibility for you. If you look at his other videos he as a really nice filter design that I wish I had the space to build
    Thanks I'll have a watch tonight . Cheers

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    Freddyboy the legend

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  31. #20
    Banned Rank = Mature Champion Trace's Avatar
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    Quote Originally Posted by gorilla1q View Post
    I built my pond and forgot to allow for a filter so cut back a little and made a 3 barrel design with sieve style first filter similar to this design https://www.youtube.com/watch?v=YYFDAIUuk7E I just adapted to suit my space and orientation. On mine what is his LHS barrel I have 50kg alfagrog and a constant stream of water that cleans the sieve dirt tube in to the 5 filter socks and in the middle barrel I have approx. 4kg of K1 this flows in to the RHS barrel in 3" pipe with the 55w UVC in to a MB with approx. 4kg of K1 then back to the pond I also have a connector pipe between the LHS and RHS barrels so when the pump turns off to back flush the bottom drain (twice a day) the two barrels drain and then when they fill back up the alfagrog barrel has a refresh of water to prevent any stagnation that I thought could happen. If you strapped for space and what a MB this could be a possibility for you. If you look at his other videos he as a really nice filter design that I wish I had the space to build
    Ah yes ... Mr1Superb ... I was inspired by some of his earlier designs and used some of his ideas on my first filter ... but designed them out over the next two versions. His designs are very elegant but IMO too complex for lazy people like myself

    I now subscribe to absolute minimalism and simplicity which over the last three years has proven to be a good decision, making complex filters is great fun when you've got plenty of time but simplicity is the key (and best for fish health) for when you get bogged down at work and free time is at a minimum.

    Although my filter designs are minimal you can easily add "gadgets" to them e.g. UV tubes and wireless digital thermometers ... details of extra's will be included in the plans ... fully modular too so you can just add what you require or want ...

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