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  1. #1

    Filter options on 1250 gallon pond?

    Following on from my previous thread, the easy pod is a non starter just not big enough and seems to require a lot of secondary bio filtering to make it work, so what’s my options on a gravity fed system, I know many will say a drum but that’s beyond my budget, considered a big pressure filter but there’s so many horror stories where people are having to strip and clean them almost on a daily basis, that’s no good either, thing is I’ve got all the time in the world, it doesn’t matter if it takes three months to complete, I’ve watched a few vids on constructing bakishowers and can see the idea and I could certainly build one but what’s best mechanical filter to put in front of it that’s not going to need a remortgage?
    digging pond out at the weekend or rather digging a big hole at the weekend so need to have at least an idea what way to go?
    decisions made so far
    standard bottom drain( I just don’t like the defuser thing in a small pond)
    gravity fed system for sure
    wall mounted pond skimmer
    filter tower in the system somewhere ( either bought or diy)
    rubber box liner is a no brainer
    over specked uv as the pond will see every minute of sunlight in the summer
    small heater for winter
    veripump to get the right flow
    thats about it upto now, any guidance will be much appreciated
    thanks
    paul



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  3. #2
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Mate to be fair and it's only my opinion bit to keep to so simple if running a shower for the bio. Stick to a seive. Bottom drain gravity to seive then pump though uv to shower. Simple cheap and it'll work easy to clean. Yes drum is best by far but when like some of us budget isn't possible. Sure you can have seive with 2 inlets letting you have skimmer and bd aswell

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  5. #3
    Quote Originally Posted by Ajm View Post
    Mate to be fair and it's only my opinion bit to keep to so simple if running a shower for the bio. Stick to a seive. Bottom drain gravity to seive then pump though uv to shower. Simple cheap and it'll work easy to clean. Yes drum is best by far but when like some of us budget isn't possible. Sure you can have seive with 2 inlets letting you have skimmer and bd
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    tbh a sieve is one thing I haven’t researched, do I need a certain size for flow rate/size of pond?

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    Senior Member Rank = Grand Champion samp09's Avatar
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    Quote Originally Posted by Paul burt View Post
    tbh a sieve is one thing I haven’t researched, do I need a certain size for flow rate/size of pond?
    You can get them in varying sizes but for your pond i think even an aqua forte midi sieve would be plenty or a Cetus sieve. I would agree with AJM though that's a nice easy set up which will offer excellent mechanical and bio filtration

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    I wouldn't rule out an Eazy Pod on a pond of that size Paul.

    I run a pump fed system which goes in pond pump to a UVC then a Multi Cyclone filter then a pump fed sieve then an Eazy Pod with 30 litres of K1 and back to the pond via an above water return with a filter sock on and my water is pretty clear for pump fed system. Then there is a skimmer feeding a small pump then a pressure filter and a protein skimmer then back to the pond.

    My pond is slightly smaller than yours and seems to cope quite well.

    Things I would say are a definite way to go are skimmer, UVC and a sieve and the rest is either personal choice or what your budget or available space allows. Heater is also a nice option too.
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  11. #6
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    I'm considering ditching the Multi Cyclone filter now I've got the sieve as it does have a reasonable amount of flow restriction so may ditch it when going for a retro BD, bigger in pond pump and swapping the current 40mm flexi hose from the pump through to the Multi Cyclone filter for 2" pressure pipe and possibly from the retro BD to the new pump I will see if I can run 2" pressure pipe?
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  12. #7
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    That's over complicated that frim how many different filter lol

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    Senior Member Rank = Gosai Stephen01's Avatar
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    https://www.facebook.com/marketplace...5391777420718/


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    Senior Member Rank = Gosai Stephen01's Avatar
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    I’ve got similar side pond and used an easy pod for a couple of years and it was brilliant but defo needed a seive for fines. Have you looked on market place and on the for sale section in here for cheap second hand drums.


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    Quote Originally Posted by Ajm View Post
    That's over complicated that frim how many different filter lol

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    Yes I know and that's why I want to loose the Multi Cyclone as the sieve should catch what that catches and more plus less pressure losses specially if I can go 2" pressure pipe right through from the retro BD? The skimmer line was just using what I had going spare as I'd not normally want to be going with a pressure filter lol
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    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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  20. #11
    Senior Member Rank = Gosai Stephen01's Avatar
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  22. #12
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by Frimley Koi keeper View Post
    Yes I know and that's why I want to loose the Multi Cyclone as the sieve should catch what that catches and more plus less pressure losses specially if I can go 2" pressure pipe right through from the retro BD? The skimmer line was just using what I had going spare as I'd not normally want to be going with a pressure filter lol
    Never actually seen your pond mate. Seen the shelves and sieve but that's it like. Do you have a build thread

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  24. #13
    Senior Member Rank = Gosai Stephen01's Avatar
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    Quote Originally Posted by Paul burt View Post
    Following on from my previous thread, the easy pod is a non starter just not big enough and seems to require a lot of secondary bio filtering to make it work, so what’s my options on a gravity fed system, I know many will say a drum but that’s beyond my budget, considered a big pressure filter but there’s so many horror stories where people are having to strip and clean them almost on a daily basis, that’s no good either, thing is I’ve got all the time in the world, it doesn’t matter if it takes three months to complete, I’ve watched a few vids on constructing bakishowers and can see the idea and I could certainly build one but what’s best mechanical filter to put in front of it that’s not going to need a remortgage?
    digging pond out at the weekend or rather digging a big hole at the weekend so need to have at least an idea what way to go?
    decisions made so far
    standard bottom drain( I just don’t like the defuser thing in a small pond)
    gravity fed system for sure
    wall mounted pond skimmer
    filter tower in the system somewhere ( either bought or diy)
    rubber box liner is a no brainer
    over specked uv as the pond will see every minute of sunlight in the summer
    small heater for winter
    veripump to get the right flow
    thats about it upto now, any guidance will be much appreciated
    thanks
    paul
    In fact that’s more or less the exact same size as my pond. Eazy
    Pod and seive brilliant


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  26. #14
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    Quote Originally Posted by Ajm View Post
    Never actually seen your pond mate. Seen the shelves and sieve but that's it like. Do you have a build thread

    Sent from my F5121 using Tapatalk
    Never done a build thread as it was set up before I joined the forum. There were some photos of the pond but they got removed when I needed some space for the QT photos. I could probably thin some of those photos out as there's a lot of duplication
    ________________________________________________
    All we ever wanted was everything,
    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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  28. #15
    Quote Originally Posted by Stephen01 View Post
    In fact that’s more or less the exact same size as my pond. Eazy
    Pod and seive brilliant


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    excuse my ignorance but isn’t that very little bio filtering?

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  30. #16
    Thanks for info guys, am I right in thinking all these sieves need to be pump fed?
    I could do it but I’d be pumping straight from the bottom drain I guess this is possible but how do I then get pressure to run through the next filter stage and back to the pond?
    I maybe looking at it completely wrong there?

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  32. #17
    689F02C5-CD67-4E9B-BEDC-BBF9F856D4CB.jpgB4F412CC-9DB8-4600-86EB-5F6F4949ED93.jpg
    I’m going to run pipe work from the bottom drain, under the steps and into the garage, I can also site some filtration on the outside wall if needs be although the path is only 600mm wide
    i was hoping to build it so everything is housed in the garage for ease of maintenance and when you looked at pond there was no pipe work showing at all because everything was below ground level, not sure that’s going to be possible now?
    it seems in terms of cost, the easy pod is this cheapest option as a basic filter it’s what I put beyond it and how I make it work, I.e get the water back to the pond?
    as for levels, I just get the pod sat on the garage floor as a gravity fed system in relation to the pond level, anything bigger or higher would need a rethink as I’d be above water level, also need to consider aeration as I’m not going for the aerated bottom drain as I think the ponds to narrow for that, didn’t really want to put a big bakkishower on the end of the pond but struggling to see another option at the minute, as I say I could site on the side of the garage but how do I run the piped return?
    Attached Images Attached Images
    Last edited by Paul burt; 17-02-2021 at 04:00 AM.

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  34. #18
    Quote Originally Posted by Stephen01 View Post



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    be tempted at that if it wasn’t so far away

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  36. #19
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Not you get gravity fed mate

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  38. #20
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    Quote Originally Posted by Paul burt View Post
    excuse my ignorance but isn’t that very little bio filtering?
    On a small pond with a fully matured filter system and pond then a sieve and a Pod is adequate but a shower after the Pod would be a better option.

    With a sieve in front of a Pod the Pod is just dealing with the bio side more than it would be if the sieve wasn't there so in that case it's not a good idea as it may struggle to cope with the mechanical and bio side of the filtration until things fully mature.

    That's how it worked for me anyway as I swapped the original filters for the Pod a couple of years ago but the pond was fully matured and the Pod didn't have to play catch up too much. A brand new Pod on a brand new pond would be a different story and extra bio would be required to speed things up a bit I would think?
    ________________________________________________
    All we ever wanted was everything,
    All we ever got was cold,
    Get up, eat jelly, sandwich bars and barbed wire,
    Squash every week into a day.

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