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  1. #41
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by james9489 View Post
    I was thinking the first bin is full of Japanese matting and brushes to catch all the crap then the second bin clear with the pump in it, so less chance of it getting clogged. Then the pump feeds water to the uv then nexus above ground. Then gravity back to a waterfall with more matting to further remove fines.

    Nice one re ball valves, that’s a good tip.


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    Sounds like a plan

    Yes ball valves for sure as for some reason I think literally every slide valve on my QT system that were working OK in the last house are now all letting through and the 3" one on the inlet of the Eazy Pod let's through just under gravity pressure not pumped. When I start plumbing my new pond I'll try to fit ball valves everywhere I need a valve. I can't believe how many slide valves are letting through now! When I get a chance I'll see if there's an issue with the seals on them. They are all Valterra? ones so are a good make.
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    Get up, eat jelly, sandwich bars and barbed wire,
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  2. #42
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
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    Yep slide valves fail surprisingly quickly.

    I got a new one (valterra) installed on a sieve filter and that let water through even when it was only a year old.

    Ball valves all the way.

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    13,000L fibreglassed raised pond with window

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  4. #43
    Quote Originally Posted by Twhitenosugar View Post
    Yep slide valves fail surprisingly quickly.

    I got a new one (valterra) installed on a sieve filter and that let water through even when it was only a year old.

    Ball valves all the way.

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    Thanks for the tip guys. I will steer clear


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  5. #44
    Managed to do get the concrete bond beam down at the weekend and start some digging, trying to plan out the filter area. The more and more I research the more Iím thinking I need to go long and stretch to a drum and build a proper blockwork small filter house I can hide under decking. Canít get my head round how big. I think it will be the case of purchasing the bits and then working out the space.

    Another issue is earth. Itís not looking good as was hoping to build a retaining wall around the gravel area and hide it under decking. My original plan was 3ft perimeter down to 4-5ft middle. Would 2ft down to 3-4 be too shallow? I know going deep 4-5ft helps the koi keep warm but isnít the bottom drain going to be pulling and moving any warmer water as itís at the lowest point?







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  7. #45
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    The deeper the better if you can but maybe worth having about 1ft to 18" above the ground level to stop everything blowing into the pond?

    As for the question of warm spots in the winter and the BD pulling any warmth away, it's difficult to say but the general feeling I get from what I've read on this site is, yes, to a degree the deeper you go the more warmth you get from the surrounding soil. A few people slow their pumps down over winter to help with keeping the water temperature from dropping too much. Polycarbonate covers help a lot too. You will probably find that there will be warmer areas within the pond due to the way the water circulates so the fish will search those out pretty quickly when needed.
    ________________________________________________
    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.

  8. #46
    Senior Member Rank = Adult Champion Twhitenosugar's Avatar
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    I'd go deeper if you can, 5ft is a good depth to aim for. It will help increase the volume of water, which will help slow the fluctuations in temperature (simply because there is more water to heat up/cool down). It will also mean you can get more fish. New Natural look koi pond build

    I'd highly recommend a drum filter. They make keeping the pond clean so easy. Worth getting, even if it means it takes another 6 months or more to save up.

    In terms of the filter pit, you want it as big as possible. 4" pipe fittings such as elbows and ball valves take up a large amount of space. I use a shed for mine and that measures something like 6ft X 7ft and even then it's tight in places.

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    13,000L fibreglassed raised pond with window

  9. #47
    Cheers guys Iím going to keep on digging. The good knews it all seems clay and is so soft. I might aim for a 2.5 perimeter just as a safety precaution incase anyone went in then tail off down to 5ft center. Struggling to work out the calculations on gallons, I suppose I wonít really know until I fill with a meter attached. Any ideas if they are accurate?

    I think Iím 100% sold on a drum what ever it takes. I have seen a few second hand but just worry that even with half the costs your still talking over a grand and no guarantee it isnít knackered. Are there any good sites for second hand parts more trustworthy? Iím liking the look of Burtons and the idea of a guarantee and someone on the other end of the line. Could you recommend any other brands to look into? Maybe going the single cheapest drum then building my own bio chamber.


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  11. #48
    Depth of 2.5 perimeter met and halfway through dig. Iím thinking of reducing perimeter to 3ft and going for a 6ft low point at this rate. Aiming for 3-4000 gallons hopefully.


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  13. #49
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    Looks like you're making good progress there. At least you have a couple of helpers there
    ________________________________________________
    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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  15. #50
    Quote Originally Posted by Frimley Koi keeper View Post
    Looks like you're making good progress there. At least you have a couple of helpers there
    Both intrigued with the worms! And realising they can both pick a fish each. Oldest wants a ChagoiÖ I need to keep digging New Natural look koi pond build


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  17. #51
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by james9489 View Post
    Both intrigued with the worms! And realising they can both pick a fish each. Oldest wants a Chagoi… I need to keep digging New Natural look koi pond build


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    Can't beat a good Chag
    ________________________________________________
    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.

  18. #52
    Bit of progress, started to drop the middle and just run out of steam and where to put the earth! Im at 2.5 - 2 perimeter, had to raise some to get a nice slope. Middle sitting at 3.5ft. Iím going to take the advice and block up an extra foot or so and backfill. Basically the whole back Garden passed the office I will raise to hide the earth and deck over. Bringing in some big boulders to define the pond edges.

    Just about to order the bottom drain. Thinking of the 4Ē spindrifter kit from Cotswold koi. Just confused still with metric and imperial and plumbing in general, would prefer to get everything ready to go at this point. Lower back pain and a glass of red tonight New Natural look koi pond buildNew Natural look koi pond build




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  20. #53
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Making good progress there.
    ________________________________________________
    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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  22. #54
    Senior Member Rank = Gosai Dom G20's Avatar
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    Coming a long nicely. I would second a drum, the quality of water and reduced maintainable time has been a massive bonus for me personally.

    I still clean my drum weekly with my vacuum to ensure any debris or sludge in waste chute is gone but itís a 10 minute job

    Looking forward to seeing this one complete


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  24. #55
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by james9489 View Post
    Depth of 2.5 perimeter met and halfway through dig. I’m thinking of reducing perimeter to 3ft and going for a 6ft low point at this rate. Aiming for 3-4000 gallons hopefully.


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    Making good progress there mate
    frim will be jealous of the nice brown soil your digging out

    what are the dimensions?
    it's hard to estimate pond volume with a sloped curved pond.
    i thought i had dug a 7000 litre pond with my previous build, but when i filled it with a meter it was barely over 4000 litres...

    some thing i'd strongly reccomend doing when you fill with a natural looking pond, so you can dose medication correctly

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  26. #56
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    Quote Originally Posted by davethefish1 View Post
    Making good progress there mate
    frim will be jealous of the nice brown soil your digging out

    what are the dimensions?
    it's hard to estimate pond volume with a sloped curved pond.
    i thought i had dug a 7000 litre pond with my previous build, but when i filled it with a meter it was barely over 4000 litres...

    some thing i'd strongly reccomend doing when you fill with a natural looking pond, so you can dose medication correctly
    Yes that looks an easier dig than mine!

    Another way to get the correct volume is the salt method.
    ________________________________________________
    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.

  27. #57
    Quote Originally Posted by Dom G20 View Post
    Coming a long nicely. I would second a drum, the quality of water and reduced maintainable time has been a massive bonus for me personally.

    I still clean my drum weekly with my vacuum to ensure any debris or sludge in waste chute is gone but itís a 10 minute job

    Looking forward to seeing this one complete


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    Cheers bud, I think Iím going invest up front and go for the drum. Keeping my eyes on a second hand but might just go for a new burtons after watching lots of vids. I mean a weekly clean is nothing, it was the daily maintenance for me and then being away with work, relying on the Mrs, holidays etc.

    Out of interest how much is the pond costing you a month? I hear water usage is the big cost now everyone is on a meter.


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  29. #58
    Quote Originally Posted by davethefish1 View Post
    Making good progress there mate
    frim will be jealous of the nice brown soil your digging out

    what are the dimensions?
    it's hard to estimate pond volume with a sloped curved pond.
    i thought i had dug a 7000 litre pond with my previous build, but when i filled it with a meter it was barely over 4000 litres...

    some thing i'd strongly reccomend doing when you fill with a natural looking pond, so you can dose medication correctly
    Many thanks! Yes it was a lovely like butter dig up until a few days ago. I think the masses of rain before I started make perfect conditions and now the clay has hardened like kiln fired pottery, just so much effort which is why Iím deciding to stop and build up.

    Great advice RE meter as I know itís crucial to know your volume. I will take the advice and make sure I meter the fill.

    Currently the pond is 15ft long x 10ft. Perimeter going to be roughly 3ft and low point 4.5ish. Hoping for near 3000 gallons New Natural look koi pond build


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  30. #59
    Quote Originally Posted by Frimley Koi keeper View Post
    Yes that looks an easier dig than mine!

    Another way to get the correct volume is the salt method.
    Salt method sounds interesting, how does that work?


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  32. #60
    Extreme Koi Member Rank = Supreme Champion Frimley Koi keeper's Avatar
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    Quote Originally Posted by james9489 View Post
    Salt method sounds interesting, how does that work?


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    Basically you measure the salt content of your water using a salt meter then you add a known quantity of salt to your pond and leave it for a few hours or over night then recheck the salt reading. Then using the 2 readings and the exact amount of salt you added you can work out the exact volume of water you have. Well that's the basics of it but on Manky Sanke's website there's a full description of how to do it. Some don't like using the salt method as it can take ages for the salt to dilute back out of the water as it doesn't just dissolve away to nothing like some other things you put in your water do.

    I seem to remember reading you need at least 1 kg of salt but it has to be pure salt with nothing added.
    ________________________________________________
    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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