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Thread: New KOIPOND 90 m3
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26-11-2018, 05:14 PM #61
Don't forget that the water running through your drum will be at pond temperature, which will never be anywhere near zero with a pond of that depth, so this will actually keep the inside of your filter warmer than the outside air at all times. If you add to that the insulation of the filter house as a building itself, it's pretty unlikely to be sub zero on the spray bar of a drum filter.
If you're actually planning to keep koi in the pond then good mechanical filtration year round is a must as they are messy blighters, even in winter!2016 new 6000 gallon pond
https://www.koiforum.uk/pond-construc...ghlight=feline
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26-11-2018, 05:43 PM #62
If when deciding on the drum you pick one with a submerged high pressure pump that would minimise the chance of issues and hopefully allow trouble free winter filtration.
6000g in ground koi pond
+3000g lily/Anoxic pond attached
29 koi (40 to 65cm)
Bottom drain, Mid water & 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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26-11-2018, 09:51 PM #63
That sounds like a great solution. Pond will work as a heat pump. Filter house will be definitely insulated to help mantain optimal temperature. I hope to run drum all year round without any problems with this scenario.
So my next question is to insulate "winter" pipes in the ground (1x110 from center BD and 1x63mm as return) or not? They will be at about 1m below grass level. In filter house it will be probably best to leave them without any modifications to spread out heat.
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lee63 Thanked / Liked this Post
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26-11-2018, 09:57 PM #64
Im not sure it's necessary for the pipes below ground.
We have ground source heating at our property, the pipes that collect heat from the ground are only installed 1.2m below the surface as at this depth, there is a stable minimum 6 degree celsius according to the installation principles of ground source heating. So unless the figures differ based on geographic location you should be ok?
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27-11-2018, 01:44 PM #65
The warmth in the ground is what will keep the pond warm/frost free - no need to insulate pipes 1m down. If the filter shed is very well insulated then great - otherwise insulate above ground pipework and filters.
6000g in ground koi pond
+3000g lily/Anoxic pond attached
29 koi (40 to 65cm)
Bottom drain, Mid water & 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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27-11-2018, 05:41 PM #66
GadgetBazza is right. Once you start getting below the top few cms of soil, the temperature remains warmer than the air so there's not much point insulating. Most of us don't bother to insulate any of the underground pipes at all. Anything exposed to air above the ground then yes definitely insulate. Inside the filters house I also wouldn't bother- and as you say will help ensure the filter house remains above freezing.
It's worth considering locating your water meter and dechlorinator units inside your filters shed too for this reason. Last winter a lot of folk who keep these near their outside tap outdoors had them split last year.2016 new 6000 gallon pond
https://www.koiforum.uk/pond-construc...ghlight=feline
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23-03-2019, 06:55 PM #67
Ok, it is time to start spring time, back in business
During winter I have moved out bigger soil pile. Smaller one is going to be moved out soon. Half of this will go directly to pond hole, next to the walls.
Pics from yesterday:
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Today I have finished next layer of blocks, tomorrow the last one and new pics. Then I have to make formwork for the last layer of concrete.
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23-03-2019, 08:23 PM #68
I was wondering where you had gone Slickbe !!!
Looks good progress with the blocks keep it up.John
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24-03-2019, 10:38 AM #69
That’s going to be a fantastic pond, 100% respect for such a huge undertaking.
I think in any project of any type there are loads of ways of achieving a completey satisafactory result, and clearly you have thought it all through, and I’m sure it will all be great.
my pond is about 40m3 with a almost flat bottom and 3 aerated bottom drains and I wish I had a decent run down to them as I do get some collection of solids..they alll make there way to the drain eventually but a decent slope would help I’m sure.
Good luck and keep us updated
Steve H2>1+1
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24-03-2019, 06:29 PM #70
Few pics after two more layers:
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My second mini pond, after winter time, for all other life except kois:
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See you soon, during making the last big layer of concrete.
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24-03-2019, 08:39 PM #71
You getting the rebar cheap as you have used loads of it,only doing good though..
Really like this build and am interested in seeing the result as when landscaped it can be a fantastic pond.
Love it.John
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24-03-2019, 10:39 PM #72
I thought that this tank is already finished
but it's good to know where you can be followed ;-)
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freddyboy Thanked / Liked this Post
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25-03-2019, 07:35 AM #73
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08-04-2019, 07:25 PM #74
Concrete was poured yesterday. Now I am making final wooden crown formwork and then final layer of concrete.
I was going to install standard wall skimmers - https://erumaqua.pl/baseny/filtracja-basenu/skimmery-do-basenow/standardowy-czarny-skimmer-scienny-151-x-143mm.html
but I do not want it to stuck at the outer side of walls, where the grass will be. So decided to use this style skimmers - https://erumaqua.pl/stawy-i-oczka-wo...0-x-110mm.html
Plan is to use 4 of them. Do you think it will be as good as wall skimmers? Maybe someone has got some experience with it?
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09-04-2019, 07:38 PM #75
If it was me I would go with in wall skimmers. They are much more effective. You can generally find a way of hiding the outer part of it under coping stones or a removable grass filled tray type hatch. etc. etc. The pipework will all run underground anyway.
2016 new 6000 gallon pond
https://www.koiforum.uk/pond-construc...ghlight=feline
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09-04-2019, 08:40 PM #76
The problem is that my pond walls will be 25cm above grass level. And there is no way to hide back side of wall skimmer - where the pipe is connected. Only way to hide it entirely is to put it inside the wall, but this will weaken construction a lot. So it is not a good solution. I made this way in my swimming pool, but skimmer wall there is much thicker than 25cm.
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Parts of formwork:
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Forest Way Thanked / Liked this Post
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10-04-2019, 07:49 AM #77
Hi Slickbe,
-Awesome pond, love watching your progress.
I just thought... are you planning to to take all of your pond returns from the Bio stage ?
I made the mistake of thinking that I could feed 3xBD's and a Skimmer into my Drum, feed that into my Bio with a 4"(110mm) pipe, and suck from that with my 3 variable speed (Jebao) pumps.....Newsflash- it didn't work and suck the bio dry on anything more than min flow on the pump.
I had to re route pipe work and reconfigure the pumps, so 1 each did the Bio Stage, Veg filter, and 'Bakki' shower, all sucking from the drum filter.
You probably smarter than me and already worked that out, but though I should mention it as it lost me few day production, while waiting for even more pipe fittings.2>1+1
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john1 Thanked / Liked this Post
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11-04-2019, 01:12 PM #78
Forest Way,
Pipe plan is something like this:
- POND to DRUM - 4x BDs + 4x SKIMMERS, all through 110mm pipes
- DRUM to BIO - 8x 110mm
- BIO to POND - 6x 110mm airlifts
- BIO to POND - 5x 63mm variable pumps (this will be powered on when there is a need, but I prefer to have this option just in case)
- POND to DRUM CHAMBER - 1x 50mm - for automatic water level maintenance
And this will be probably all the pipes I want to install.
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15-04-2019, 07:11 PM #79
Just before last layer. By saturday it should be done
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16-04-2019, 05:57 PM #80
That’s epic!!
Guessing you’ve had the “building a swimming pool” jibes off friends and family then?
Mine is minute compared to that monster and I get it all the time lol
(Talking about my pond before some smart arse makes a lewd comment or Anne gets all over excited)
Sent from my iPhone using Tapatalk
The Daily pond temp thread
Still at around 17C, know what you mean about getting the covers off though :D it will be really...