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Thread: Nexus 220 fines issues
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11-07-2019, 07:36 PM #121
i made a huge mistake in last 2 months by getting rid of my superbead 8000 and bio sieve (cracked base) 250 micron screen.
i replace with evolution equa commercial settlement tanks fitted with answer 410 100 micron screen, upgraded pump and 74 micron screen with bio tank filled with approx 120 ltrs of k1 micro im not sure if this system pre-dated nexus filters but anyway i regret removing the bead filter due to the water clarity quickly became a major issue to point where you could only see approx 1 - 1.5 metres through the water .
ive now added a econobead eb50 after the bio and return pump and the water clarity had within 1 day returned to being cystal clear but now flow rate is significantly reduced due to the bead filter max flow rate, now fresh fish poo is floating in the water and large amounts of fish waste collecting in 1 corner of the pond .
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freddyboy Thanked / Liked this Post
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11-07-2019, 07:43 PM #122
EA have come back and told me I need to run two EA 55w UV's in series to sort out my fines problem.
Unbelievable.
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11-07-2019, 08:19 PM #123
Lol no they know what they are talking about???? Ask for a freebie as your having issues with their products , It sounds like the end of a bell is replying to you in my opinion you could have a thousand watt uv it won't fix a mechanical issue
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11-07-2019, 10:32 PM #124
Nexus 220 fines issues
Errr, so why didn’t they just say run a 110w from their range?!?!?
Because from what I’ve seen my EA 110w is just two 55w UV’s looped. Bizarre...
I have to say the EA 110w does work well. For me anyways.
That said, I’m a newbie to this and even to me a UV ain’t gonna sort out issues with fines unless I’ve missed something...Last edited by Gray; 11-07-2019 at 10:36 PM.
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freddyboy Thanked / Liked this Post
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11-07-2019, 11:44 PM #125
Think the guy is just trying to put me off the scent.
He replies quickly but ignores the bits where I question the capability of their products.
To re-summarise the advice so far, bearing in mind each recommendation is in response to me questioning the capability of the Nexus and its failure to filter out fine particles, in chronological order.....
- Reduce pump flow to 6000 lph.
- Decrease filter maintenance
- Don't clean the Nexus for 3 weeks.
- Add a purge valve to the bottom drain run
- Carry out weekly water changes
- Get an automated Nexus cleaning system and set it to clean twice a day
- Replace the UV with a larger one
- Move the UV lower down (its already low down)
- Add a 2nd EA 55w UV in series
- Add some blanket weed treatment (I don't have blanket weed).
Not a single reply has even acknowledged the possibility that the Nexus is to blame!
Made some enquiries about a Draco today. There will be a 10% off offer in September. I said I'll buy one now if they can do 10% off now.
Installed a Macerator to the Nexus outlet today.
On Tuesday I'll add another course of blocks to the filter pit for height clearance.
After pay day I'll start buying pipework for a mains water supply.
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12-07-2019, 12:42 AM #126
The one thing they havent said which in my opinion solves a lot of nexus fines issues is. A slab of japmat full height and width vertically in the exit slot about 2 inch behind the steel seperation grid.leave in for a week then wash weekly in tap water.and watch the clarity improve massively....andi
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12-07-2019, 12:59 AM #127
Dose the clay have any effect on the fines with the nexus ??
Sent from my SM-N950F using TapatalkFreddyboy the legend
"we are water keepers first"
Johnathan
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12-07-2019, 04:30 AM #128
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12-07-2019, 09:35 AM #129
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12-07-2019, 09:38 AM #130
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12-07-2019, 09:47 AM #131
They are ringing back about the Draco today.
I said, if I'm very quiet on the phone or just giving yes/no answers it means the missus is in listening distance
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12-07-2019, 09:59 AM #132
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I don’t personally like using clay as it although it does clear up the water it seems to coat everything in the fine muck that was suspended in the water!
Noticed this when I had my Draco (after a treatment the water went a weird colour), so I bought some clay thinking it might help clear things up, and it did help, but then everywhere in the nexus and Draco ended up coated in a very fine brown muck that was fine enough to have passed through the screen of the drum!
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12-07-2019, 10:08 AM #133
Filter floss or wadding is a different animal to jap mat.
I have had most ea filters over the years. I like the nexus but it is not without its flaws. I have jap mat on the return mainly to stop escaped K1.
Never had an issue with the company until I bought a new UV and had to deal with their customer services and that's when decided I wouldn't buy another EA product and I haven't since.
I can leave the jap mat for a month if I wanted. Even with it in you can see what makes it to sieve in shower.
I have had gin clear water in past with nexus followed by their k1 bead filter. There is ways to do it without a drum. Crystal clear water has been around for years in the hobby, drums are new.
I plan to get there again but pond is new so it will take time. I use KoiMasters Advantage religiously once a month in summer at 1.5 x recommended dose.
If you pm me pond volume and address I will send you some. Works great on reducing fines and sumi improvement.
Your answers to your problems will not be found by contacting EA customer services.
Sent from my BBF100-1 using TapatalkBuilt not bought!
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12-07-2019, 12:57 PM #134
I like those air valves Dave.
The ones with screws in seem to rust/seize/leak after a while and are expensive to keep replacing.
Negotiated a good deal on a Draco..... Ordered!
Used Credit Card.... not sure how I'm gonna cover that off yet, but have a Month to think about it lol.
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12-07-2019, 01:06 PM #135Built not bought!
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12-07-2019, 01:15 PM #136
You sure it isn't just that you have fish in the pond?
Personally I have always thought that the flap valve on the 220 was a backwards step, known of a few folk that have had issues with fines and gone back to the original stem and plug with some success in reducing fines.
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12-07-2019, 01:20 PM #137
The only single reason I've not already got a drum is due to the noise.
Garden/shed/garage thefts are a big problem round here, and as I'm a Semi with the filter pit backing onto an alley I'd have thought we are more susceptible than most.
Going to try and sound deaden the filter pit, but its so tight for space in there even 15mm insulation board might be too much. The Nexus has exactly 15mm clearance against 2 walls.
Don't worry, the picture thread will be complemented by some Draco pics within the next fortnight
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12-07-2019, 01:22 PM #138
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freddyboy Thanked / Liked this Post
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12-07-2019, 01:23 PM #139
Davej's jumbo fry for sale.... £250 each.
Have a Draco to pay for!
Did you see the latest pics Dave in the last PM?
They were taken on Tuesday.... and they're bigger still now and more colour changes. Thoroughly enjoyed raising these, get excited every morning to see what changes have taken place.
Will post up a development thread for them in the next week or 2 if you don't mind. I've learned a lot from these and hopefully it will be interesting for others too.
EDIT: They will take standard sized 3mm pellets now.Last edited by RS2OOO; 12-07-2019 at 01:28 PM.
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12-07-2019, 01:28 PM #140
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Ajm 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...