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Thread: Nexus 220 fines issues
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10-07-2019, 10:45 PM #101
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Nope no overflow I’m afraid, think the drum shuts off (stops trying to clean) after so long, no inbuilt bypass setup either
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11-07-2019, 07:26 AM #102
RS seems like you have a plan, keep us posted, interested to hear the results..cheers
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11-07-2019, 08:47 AM #103
Can you not put a bypass pipe in like on the 220?
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andikoi Thanked / Liked this Post
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11-07-2019, 09:47 AM #104
I continued the dialogue with EA just to push it a bit further.
Sent the photo of the filthy filter floss from a few posts ago.
Explained if I leave the water in a bucket overnight it becomes clear and all the algae sinks to the bottom, i.e it is dead clumps of algae that the UV has already killed but the mechanical filtration of the Nexus is failing to remove it.
The response???
Apparently I need a bigger UV as the Nexus isn't designed to remove algae.
Total waste of time. Times like this you wish you were a solicitor just to prove the false advertising!
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11-07-2019, 09:58 AM #105
£2.5million profits suggests they’re doing something right, at least for their directors if not their customers.
Let’s face it, the nexus is what, nearly a 20 year old design? They’ve done pretty well out of it that’s for sure.
They’ll never admit it’s flawed else those profits will vanish overnight.
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11-07-2019, 10:21 AM #106
Very true BCC.
And in fairness I'd still recommend a Nexus in certain circumstances as they do have their place. This time last year I didn't need a drum (just a nice to have).
Now I need one!
Wonder if the next incarnation of the Nexus will have "nano" K1.... especially designed to deal with fines, at £200 per 50 litres lol.
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11-07-2019, 10:45 AM #107
Lol I suspect those clever Chinese plastic extrusion companies are making a container full as we speak.
I’ve no real beef with EA to be honest. I suspect for everyone who has an issue there are 100 who’s expectations aren’t quite as great and are perfectly happy.
Thing is, times have changed and they haven’t developed the product to keep pace which they could have done.
I’d have probably installed a nexus when they first came out but had just purchased a massive bubblebead and estrosieve. Information was a bit lacking back then and by the time I’d heard about them it was too late.
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11-07-2019, 11:07 AM #108
When I first had the fish 24 years ago.
All the top aquatic places in our area all had nexus. But a sieve before as a mechanical filter first. Mainly the cetus sieve on balance lines.
That's what made me go for one myself on new build 3 years ago. Epcept I went for an ultra sieve3.
But as the build was progressing i found out about the draco drop in.
And i knew if i sold the brand new nexus.
I would lose more then half the value. So it made sense to keep it and still have a drum.
And i have nt looked back since.
Most aquatic places have drums now.
Who knows what they will have in 20 years time.
I have never run a nexus without a drum inside. So can t really give my opinion on them. With the easy inside.
Fred
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11-07-2019, 11:13 AM #109
Forgot to add it stinks when some won t admit to there wrongs.
But as BCC says they ain't going to do that or they will be out of business.
Mine cost £1500 plus postage 1700 quid all together.
And to me it's just a piece of plastic. Moulded into a shape. And no way is it worth that money
A total RIP off.
Fred
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bigcarpchaser, andikoi Thanked / Liked this Post
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11-07-2019, 11:53 AM #110
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I think the problem is that drums are still VERY expensive and for some the price will put them off, some of it may be down to bad advice/ dealers who maybe want to sell brand x filter, or maybe just customers who come in to buy a filter, maybe have a fairly limited budget and they’ve been looking at pressure filters, multichamber jobbies, black box filters etc etc and that’s what they want, and they don’t have the knowledge or experience to know that brand x filter might well work quite well, but it’s high maintenance, brand y might be better in certain regards but still not as good as it “could be”, it’s a nine field out there in terms of what you can get, how well it works.
I know when I 1st came into keeping fish I really didn’t understand just how much money you could sink into the hobby on “bad decisions”/ bad advice, and how much it can/could cost if you want good filtration that’s low’ish maintenance!
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11-07-2019, 02:13 PM #111
I know there's better gear out there (like drums) than the Nexus stuff but being only one year into this lifelong hobby and the owner of a Nexus 320 on a balance line I have to say it's working out well for me.
I've got a water issue at the mo' but that's down to NPS I feel/hope so nothing to do with the Nexus.
The fines issue is one that doesn't overly concern me but I have to admit the Nexus ain't great with them. The Koi tend to hoover anything bigger up anyways! That said, it's not like there's great lumps passing by the window because the sieve works hard to deal with stuff.
I wouldn't have it set up without a sieve that's for sure.
It is overpriced for sure but as a decent (not top) quality, entry level filtration system I can't fault it. It's taught me a lot about how a pond works.
But I'd love a drum!!!!
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11-07-2019, 02:33 PM #112
im running 2 second hand kc-10 drums,theyre about 10 years old so got them quite cheap lol,both return over bakki shower,my pre 2006 nexus 200 is on my skimmer,overkill i know but the only reason is that i paid £450 for it 3 years back and would only probably get £250-£300 for it,so i kept it,it gives me extra bio and takes any food out the koi miss,but thats it,i dont expect it to do anything else really,i will say this about nexus,IF you need to flow loads of water through it for a high turnover and get a clear pond,you will be disappointed,if like me you can run it on a low flow over a couple of hours then your water quality and visual effects are good,both my drums can only flow 10000lph but ive managed to get about 14000lph through them and with the nexus on slow go my water has cleared substantially,i still reckon on a 2 hr turnover most ponds would work better,,,,,andi
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11-07-2019, 02:56 PM #113
I was thinking something similar earlier Andi....20 years ago, that was about right, when did it change to once an hour or even less? Fish haven’t evolved that much over 20 years as far as I’m aware and water is still water lol
Is it purely down to people having showers and do they really need such a high turnover to work? I mean, plenty of people are using trickle type towers quite successfully. If you think about it, showers are probably the most inefficient form of filtration you could probably have from both a cost and energy usage viewpoint. Damn simple though.
I’m an advocate of getting the muck out ASAP which is where a drum scores over anything else available at the moment but would that hour really make much difference?
I’m certainly going to play around with the flowrates on my shower and see if anything significantly changes.
(I’m sure this discussion has cropped up before...Didn’t one of the Dave’s play around with shower flows preciously??)
JK..if you’re looking in (bet your are lol), anything to add mate? You’ve had both so would be in a good position to comment especially as you’ve have your pond going for a good while.
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11-07-2019, 03:05 PM #114
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I guess it depends how picky you are, when I was running just the nexus I didn’t like looking into the pond at say my purachina or kuhaku and as they swam about you’d see all the fine particles highlighted against the white of there bodies and it spoiled the look of the fish!
It’s a bit like if you see say the same fish in a pond where the water is discoloured (has a yellowish tinge for example), it just spoils the look of the fish, and if you’re anything like me - once you’ve seen something your eyes are always drawn to it from then on! It’s like spotting a paint chip or dent on your car when your cleaning it, and then after that your subconsciously drawn to that same spot time n again!
Same with “bitty” water, once you see it, you can’t then Un-see it and then it starts bugging you (or is that just me!)
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11-07-2019, 03:34 PM #115
Nope...not alone. If you see a pond where the water is crystal and the fish are looking beautiful you can’t “un-see it” and it’ll mess with your head lol
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11-07-2019, 04:08 PM #116
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I remember going to absolute and looking into the main pond and the water was crystal clear with a very slight blue tinge to it, it looked amazing, came back and saw mine and I was disappointed!
Not long after that I bought the Draco and changed my food slightly upped the water I was tricking in and things improved greatly.
I remember when I 1st ran the drum it seemed to be going off every 5/10 mins with all the fine crap it was catching, couple/three days later and the difference in clarity was startling!
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11-07-2019, 04:22 PM #117
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Might seem a bit ott, but I do think there are several types of filters that are sold as being suitable for koi ponds that simply have no business anywhere near koi at all!
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11-07-2019, 04:45 PM #118
I've continued the email tennis with EA.
Their conclusion:
This fines issue will never be resolved unless I get a more powerful UV suitable for my pond.
They say I have proven this by the photo of the filter floss in the Nexus outlet.
If the UV was correctly sized for the pond there would be no green fine particles and this fines issue wouldn't exist.
As I only have a measly 55w UV on my 12,000 litre pond, I've now asked what size UV they would recommend.
According to this chart I only need the evo 25:
ea-evouv-specs.jpg
Now waiting for them to come back and say the UV is too powerful and causing the clumps to be too small for the Nexus lol.
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11-07-2019, 04:57 PM #119
Lol you’re on a never ending cycle of crappy answers mate. It’s amusing to see how they contradict themselves however I can imagine it’s particularly frustrating.
UV is probably an odd one as it’s “rule of thumb” and surely how much sun/shade/surface area:nitrates/phosphates etc play some part in algae production therefore what works for one pond may not work on another?
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11-07-2019, 05:38 PM #120
Weird response based on what you told them..flogging a dead horse RS there!...as already said I think the Nexus is a reasonable filter, and much better than many out there..but will not give you fine free water, if that’s what you want (and I did/do). The Bio side works well for me though alongside the Draco..
Best plants to remove Nitrate
pug has a very impressive veg filter on his pond, have a look at some of his his youtube videos....