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Thread: Ideal size for a filter house?
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16-09-2017, 01:30 AM #21
Cheers for all filter info but has anyone any dimensions for the ideal filter house as per the thread title?
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16-09-2017, 01:36 AM #22
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16-09-2017, 06:27 AM #23
Ideal size for a filter house?
I'd say when you finally decide on filtration allow a metre around each filter and a metre between them.
I wouldn't have windows. I get zero algae in my filters since moving them into a blacked out filter house.
I like Nexus filters but I don't think you'll be satisfied with either clarity or water chemistry with one on a 7000g pond if well stocked.
In theory, theory and practice are the same.
In practice, they aren't.Last edited by JohnKitching; 16-09-2017 at 10:42 PM.
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16-09-2017, 11:06 AM #24
Drums generally take the input from all your pond outlets - multiple bottom drains and skimmers. If you have several bio filters eg. A moving bed and a shower, you simply attach two pumps. My QK 50 has sites for 4x inputs and 4x pumps should I want to use them. I had 2x Cetus sieves and both are now redundant. (Must get round to selling them)
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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Gray Thanked / Liked this Post
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17-09-2017, 12:19 AM #25
Thanks for the dimensions John, very helpful. I was considering a window for natural light to be able see in the filter house but now you've said about having it blacked out that makes sense. No window, saved a few quid
I'm looking in to alternatives to the the Nexus now as I do feel 7000g might be a bit too much for it having down some calcs. It could be ok but I want surety.
The pond won't be heavily stocked. 5 fish (75cm - 1m) and then 5 smaller around 20-30cm later on. Quite light for the water volume maybe but I want them to have plenty of fin room!
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17-09-2017, 12:23 AM #26
My thinking is that I'd prefer for the surface debris, maybe large leaves & stuff, to be easily caught and cleaned via a sieve. Might not be technically needed but with a hedge near the pond I'd prefer to have to turn it off as it's redundant vs. kicking myself for not installing it just in case.
I've bought one already so as well have it on the system and see.
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17-09-2017, 12:49 AM #27
The trouble with using a Nexus on large ponds is the max turnover rate is very limiting. That's why people often fit 2 Nexuses (or is that Nexi?). For the cost of that you might as well get a decent drum and K1 chamber though.
2016 new 6000 gallon pond
https://www.koiforum.uk/pond-construc...ghlight=feline
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Gray Thanked / Liked this Post
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18-09-2017, 12:16 AM #28
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18-09-2017, 06:17 AM #29
I found my nexus did a good job on bio but wasn't great on fines. My water was never clear. Adding a bead filter and switching to gravity fed made it better but only swapping to a drum fixed the problem.
I don't know how much better the x20 Nexus with micro k1 are.
In theory, theory and practice are the same.
In practice, they aren't.
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18-09-2017, 08:35 PM #30
Cheers John, all roads are leading to a drum as the centre piece I think. Hopefully going to see a set-up in action this week so I think that'll make my mind up once and for all. Maybe a Nexus 320 and Drum (like Fred's) could be the answer for me as I do like the Nexus bio and the ease of cleaning.
But I'll soon find out! Cheers.
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freddyboy Thanked / Liked this Post
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19-09-2017, 05:28 AM #31
If you're going drum I'd argue the Eazy part of the Nexus is redundant and you'd be better with just moving bed k1. Cheaper and no cleaning. Plus could get more bio into the same sized footprint.
In theory, theory and practice are the same.
In practice, they aren't.
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19-09-2017, 10:14 AM #32
i think you should look at a used 300,if your going to use a draco then as john says the eazy section will be redundant,i reckon you could put 200L of k1 in outer chamber no problem,ive got 150 in my 200 and could fit more,nexus 300 needs 4.5ft footprint,i think thats a nice size and i reckon a seperate drum and bio although you could probably put more water through it would need a larger footprint,as for turnover rates i got told recently that theyve gone the same as the need 6ft depth opinion,as in it doesnt matter that much anymore,a draco takes out crud to 58 microns,and even if you turn over your pond every 3hrs,after the drums been running a few weeks theres and got on top of things its going to keep things nice and clean,remember a drum constantly cleans all the small stuff so theres nothing going back in pond,also nobody ever seems to mention about dwell times anymore,whats the point in having a bio side if the water goes through it that fast that it doesnt get chance for bio to work,i turnover my pond every 2hrs(3000g) and i like the fact i havent got niagra falls out the other end,i do have a small 3 tier crystal bio shower that i think compliments the nexus well,andi
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19-09-2017, 11:22 AM #33
Hi gray. I have kept my centre easy. In case the draco happens to break down. Or wait for parts say. Drum out. Say for repair. in about half an hour easy put in.
And i still would have filteration on the bottom drain. I have done it. So i know it works. Problem with a pump not the drum. I have had the draco now for 15 months. No problems.
To me a drum is a drum. No matter what make you have . In my opinion.
They all do fantastic work.
As john says gets the fines out.
Also i am in the same as what andi says. Dwell time is a good one. I have 4000 gal with a 8000 pump on.
Plus a ultra sieve on skimmer. 8000 pump. And my water parameters are spot on. Gin clear.
Sent from my SM-G925F using Tapatalk
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19-09-2017, 09:09 PM #34
Ideal size for a filter house?
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freddyboy Thanked / Liked this Post
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20-09-2017, 01:01 PM #35
you should give tony at draco a call gray,he will tell you all you want to know and may advise you a lot better,andi
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21-09-2017, 09:09 PM #36
Thanks to everyone for their comments.
Anybody ever used Rob Smith at Cotswold Koi?
Contacted him online as he had a good deal of detail about the Evolve filters on the website. He called me today as promised and was really, really helpful and definitely knew his filters & setups.
Getting a price for an Evolve 10000 with Draco drum.
Just keen to know if anyone has used them before?
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freddyboy Thanked / Liked this Post
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28-09-2017, 11:53 PM #37
Got the quote back yesterday for:
- Evolve filter
- Draco drum
- Draco controller
- Automated clean/purge controller
- Gate valves
- Three sections of moving K1
- Two of Jap mat
- Stainless baskets for the media
- and some other necessities.
It's all gravity fed from two inlets, one for BD and one for Skimmer lines and then three outlets.
Came to £4,000 total.
Tidy piece of kit and all seems to work very well from what I've seen.
Anyone using one at the moment?
Pics below are of an Evolve, not quite the inlet/outlet set up I'm looking at.
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29-09-2017, 11:00 AM #38
space wise i have a 6m * 4m workshop to put the filters in, that the pond backs onto, this then backs onto 2 twin garages, so lots of space if needed, though i have no plans to use it all for the pond,
if building i would build to the size of the roof sheets, removing any joins and cuts to reduce the chance of problems, but if using membrane,/pitch or any other roofing material, then build it to the size of the blocks if being used, i personally would rather cut the timbers then have to break to size more blocks than absolutely necessary. you seem to have lots of space and so id personally go a tiny bit bigger to keep the chair and table that your going to need by the pond for sitting out on dry days. also water spills will happen so painting and making it easy to gravity or brush away spillages would also be a preferencethe slow pond build thread
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30-09-2017, 01:25 PM #39
[QUOTE=Gray;254139]Got the quote back yesterday for:
- Evolve filter
- Draco drum
- Draco controller
- Automated clean/purge controller
- Gate valves
- Three sections of moving K1
- Two of Jap mat
- Stainless baskets for the media
- and some other necessities.
It's all gravity fed from two inlets, one for BD and one for Skimmer lines and then three outlets.
Came to £4,000 total.
Tidy piece of kit and all seems to work very well from what I've seen.
Anyone using one at the moment?
Pics below are of an Evolve, not quite the inlet/outlet set up I'm looking at.
Hi Gray I wouldn't bother with the gate valves use ball valves instead.
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freddyboy Thanked / Liked this Post
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04-10-2017, 10:55 PM #40
[QUOTE=koinewbie;254203]Funny you say that as that’s what I said the chap at Cotswold Koi. His reply was for the amount of time they remain open vs. closed gates are fine and half the price.
Also said they purge better as you can get an instant rush of water vs. a slower build up of pressure.
That said, I have heard of gates leaking or not closing fully. Not sure how true that is though.
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freddyboy Thanked / Liked this Post
Running heater at low temp?
Covering the pond with polycarb should be enough to stop water temps dipping below 6C for the most...