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  1. #21
    Senior Member Rank = Grand Champion andikoi's Avatar
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    my advice would be as you have a leak,you are going to need a new liner anyway,so while your replacing liner fit 2 bottom drains and dig a filter pit,buy a drum,this can have both bd going into it and then either convert the 2 nitritech filters to k1 or helix media or buy a large standalone bio chamber,you could if drum is in a filter pit then pump to your fitertechs or whatever and let gravity then empty them back to pond,andi

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  3. #22
    Problem I see is digging the filter pit. No where to really to dig. Unless it’s behind the pond. Which would mean running a lot of pipe underground. And the only way to do that is to dig a channel.
    Would need a digger for that!


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  4. #23
    Extreme Koi Member Rank = Jussai RJW2012's Avatar
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    New to Pond Filtration

    My comments were going to be similar to Andy’s; install Bottom drains and then run to a drum.

    Sticking with the pumps in the pond; modify the Cloverleaf bays as mentioned previously, with a Draco & K1.

    Rob.


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    Last edited by RJW2012; 08-02-2018 at 08:09 PM.

  5. #24
    Looking at the Draco - that seems like a viable option.

    So, you're suggestion removing 1 of the 2 Cloverleafs and replace it with the draco, and then have the remaining cloverleaf with K1?
    OR
    leave one cloverleaf setup as is (but with K1), and have one of the pumps pump the water into the draco, then into the second cloverleaf with more k1?

    the pond has two pumps.

  6. #25
    Have a word with Tony at Draco but you may be able to sit a drum on top of one of the cloverleaf tubs, connect them both in series,if that’s possible, bung them full of aerated k1 them return to pond.
    bottom drains - pump(s) - drum - cloverleaf - return I think is how it would work
    Not ideal but probably the cheapest solution I can think of without seeing in the flesh

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  8. #26
    Quote Originally Posted by bigcarpchaser View Post
    Have a word with Tony at Draco but you may be able to sit a drum on top of one of the cloverleaf tubs, connect them both in series,if that’s possible, bung them full of aerated k1 them return to pond.
    bottom drains - pump(s) - drum - cloverleaf - return I think is how it would work
    Not ideal but probably the cheapest solution I can think of without seeing in the flesh
    Awesome!

    Will give him a call.
    With the K1, how do I keep it turning in the drums?
    I’m assuming that I’d need to install an air pump to each chamber?


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  9. #27
    Extreme Koi Member Rank = Jussai RJW2012's Avatar
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    New to Pond Filtration

    Yep, air pump or pumps with a manifold (multiple air line connections) and air stones dropped in the bays, or you could use the ceramic air discs; a few options really.

    Tony used to come on the Forum, top guy so definitely speak to him and as BCC said previously.

    Rob.


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    Last edited by RJW2012; 08-02-2018 at 08:07 PM.

  10. #28
    Oh yea, don’t forget a drum will require a drain to waste. The other thing to consider is a trickle in/out however, given the size of your pond I’m not sure how I’d approach that if I’m honest. Kinda depends if you’re on a water meter or not.

  11. #29
    Quote Originally Posted by bigcarpchaser View Post
    Oh yea, don’t forget a drum will require a drain to waste. The other thing to consider is a trickle in/out however, given the size of your pond I’m not sure how I’d approach that if I’m honest. Kinda depends if you’re on a water meter or not.
    Trickle in/out?
    (Not on a water meter).
    Waste can just go into the hedge.


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  12. #30
    Home

    I’d suggest spending some time reading this, i highly recommend it.

    if you’re seriously keeping koi rather than just having a general goldfish pond then there’s a lot to take in. They’re very different in their requirements. I don’t think you’ll be disposing of the waste from a pond that size under a hedge for too long lol. Seriously, it’ll need to go down a drain, unless you have a mahoosive hedge, and if you don’t, you soon will have...and probably a mini bog shortly afterwards.

    Have a search on the forum for “trickle” and a read through some of the build threads and it will give you an idea on what you’re letting yourself in for. Bare in mind that a modest pond is about 3000 gallons, yours appears to be ten times bigger. There’s a recommended ratio of fish to water which you don’t really want to exceed if you want your fish to thrive rather than survive. A huge number of fish will also cost a small fortune to feed so that’s something worth considering too. They won’t reach their potential without some grub, and the more grub they eat, the more poo they do, the more poo, the dirtier the water, and so it goes on.

    Shout if you want anything explained, I’m not an expert, I just see things can be simple when they don’t really need to be over complicated. None of it is rocket science, except the chemical stuff which I know very little about, the “mechanics” of it is what I like. I’d be quite happy drawing and designing ponds and let the clever people do all the other stuff

  13. #31
    Thanks for the info! Will have a read.

    A little about me, I’ve been keeping marine fish and rare coral for 7+ years now.....the chemistry part is something I know a lot about and I have the test kits to assist.
    I had a 0.5ppm increase in nitrate and it wiped out £500 worth of coral.

    The biggest difference between the two setups (tank vs pond) is the scale. I have the fundamentals, just applying it to something so big will take a little getting used to.

    Really appreciate the advice/help everyone has given.



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  14. #32
    The red thing that says “home” is a link to click on, not sure if that was clear or not.
    Enjoy the read
    There’s also a fair few decent books you could have a flick through, Koi Kichi by Peter Waddington is decent albeit a bit out of date now but it really explains the fundamentals pretty well. It’s quite relevant in regards to the pond you have at the moment. He’s a bit of a Marmite character and provokes lots of “heated debate” however, I like him and he helped me a lot a few years back.

  15. #33
    Senior Member Rank = Grand Champion voodoo_15_uk's Avatar
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    What I would recommend with a drum is if it is fed from the clean side of the drum, it would be better if you put it in its own tank with a top up, just that I’ve found when treating the pond it takes the treatment out too.


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  16. #34
    Liner size would be 14m x 14m if working it as a square, a 0.75mm EDPM here https://www.bradshawsdirect.co.uk/se...de-in-any-size is £1076.74

  17. #35
    Hello!

    Many thanks for the help! I'm still waiting on another quote for liner - issue is the slabs around the pond need to be removed, and then re-cemented back after the liner is replaced. thats probably where the bulk of the money is going on the labour cost.
    So, i'm thinking of going down this route.

    Filling the two cloverleaf's with K1 (how much would i need?)
    Having a third pump to a dracodrum (with topup).
    Installing a oase biosys skimmer (or similar) connected to a fountain for aeration.

    With the Oase skimmer - i noticed that the pipe connection to it is at the back, so i'd have to run the piping external to the pond.
    Anyone had any experience with the tetra pond skimmer? or any other suggestions? Needs to be easily accessible.

    getting there....slowly!

 

 
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