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Thread: Drum and shower only filtration
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27-11-2015, 12:05 AM #1
Drum and shower only filtration
Hi all fellow nutters
i have an Aquadrum 55 and an Aquadyne 4.4 after.
I then have a PS4 with 7 boxes of Bhm.
Pond is 5500g 14 fish feeding about 4kg a week
I clean the bead once a week and notice with a sight glass it's quite dirty.
I also have a strip of japmat along the outlet of the shower to reduce noise and today it fell out and when I netted it out the pond noticed it was quite dirty of poo poos.
Just with this experience don't see how drum and shower is enough?
Regards
Dave
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27-11-2015, 08:39 AM #2
Ive got a similar set up to you and when i back wash my Aquadyne 4.4c, i get a fine brown coloured water even with a drum in front . Without the bead collecting that muck would go over the shower. Is the bacteria in the shower dealing with this
5000 Gallon Fibreglassed Pond With 54" x 27" Infinity Window
BD300 Drum Filter
Artesian 0.5hp - Aquadyne 4.4c Beadfilter - PS4 Protein Shower
Badu Eco Touch - EP20 UV Sterilizer - ASHP - Venturi
Hi Blo 60 - Medo 45 - Spindrifter Bottom Drain
Wide Mouthed Skimmer
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27-11-2015, 09:03 AM #3
Hi dave,this is the same as i run,i take it ur shower runs from a seperate outlet from the drum?,4kg is a lot of food to be still feeding with 14 koi,u must be doing it very different to me.what kind of food are u feeding?,in summer i dont have enough filtration tbh'as i struggle with 3kg of food per week,i feed saki balance and growth sinking pellet and the bead can go 3 weeks between cleans and the waste when cleaned is a light brown,the shower only route must be down to a huge amount of bhm or other'with a very high turn over,i too would like to know the science behind how it keeps the water clear and good as a sole filtration,am sure someone that has experience with this can tell us.
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27-11-2015, 10:21 AM #4
Wow, I have 12 Koi from 50cm to 80cm with 65cm the average and feed less than 1.5kg a week, even mid summer I doubt if I feed more than 2kg in a week.
Alias PWNN - Steve
My favourite and recommended web site is......
http://www.mankysanke.co.uk/
http://www.freewebs.com/koikoi/
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27-11-2015, 11:02 AM #5
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27-11-2015, 11:15 AM #6
I fill the profi up twice a week so it's roughly 4 kilos. To be honest they could eat more. I give them quite a bit of brown bread at the weekends too, maybe about 10 slices.
I have a few big hungry girls. They are all around 65-80cm. Mostly female.
The shower is after the bead, which is why I was surprised to see muck in the piece of japmat.
When I clean the bead on a Sunday it's as dirty as it used to be before I installed the drum, but of course back then I cleaned it 3 times a week at least.
I open the sludge drain on the bead before I clean it and sometimes it stinks even now with the drum.
Just surprised people cope with drum and shower.
My pond is 5500g and I have a flow of about 3000g an hour.
Dave
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27-11-2015, 11:19 AM #7
Hi Dave
drum - 4.4 Aquadyne - PS4 with 7 boxes of bhm.
Badu Eco Pump turned right up to max.
I'll check head loss later.
Whats your thinking?
Dave
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27-11-2015, 11:21 AM #8
Sorry forgot to add using medikoi probiotic.
Still feeding heavy for a few weeks then reducing.
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27-11-2015, 11:59 AM #9
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27-11-2015, 12:11 PM #10
Good thinking, but all bungs are there.
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27-11-2015, 12:36 PM #11
how long has this been happening?
can u run the shower from one outlet on drum and the bead on the other?
think u will have to clean it more regularly as the waste is getting through the bead,but would of thought the drum would do a better job?is your rinse pump working fully as I had to change mine!
if your feeding that much food I cant see how you have enough biological with the bead so dirty?even with a clean bead and 70kg in a shower that doesn't seem enough for 4 kg per week,10 slices of bread and 15 big koi.
if this is a new thing that's happening,the drum is the first place to look.
I had this very same thing,the water looked terrible and the bead was extra dirty but this was down to one bung had came out and letting shite trough,hope you get it sorted!
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27-11-2015, 01:58 PM #12
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27-11-2015, 02:53 PM #13
Hi Enoch, yes I will eventually have 2 pumps to increase flow through the drum, I just haven't had time recently, I've got another Badu sitting there ready to be connected up.
It will definitely happen for next spring.
Drum was fitted in April and the shower fitted September.
Davej I have bottom drain and skimmer feeding the drum. I have another 4" Tommy drain available, but I wanted to get a good pull from the skimmer so I haven't connected it.
The head loss just before its cleaning cycle was about 40mm. Do you think I should raise my sensor and get it cleaning more often?
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27-11-2015, 04:16 PM #14
you have done well if your shower has only been on 8 weeks and you have been feeding 4 kgs of food already,how is the nitrite?
my drum flushes 10-15 minuites,i have the 35 model with 2 320 blue ecos on 4300 gals.your drum flow could be doubled no problem.where abouts are you based'roughly'
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27-11-2015, 04:48 PM #15
Hi mate, yes I think this could be my problem. Mine probably flushes every hour, think I need to move my sensor up.
The Aquadyne has been running for years so it's pretty bullet proof. I had a ph crash a few months ago and it recovered quite quickly.
Bicarb a couple of times a week helps massively.
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27-11-2015, 04:50 PM #16
I'm sure increasing the flushing time will help, but does it explain why so much gets past the drum?
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27-11-2015, 05:51 PM #17
I've put filter wool across top of my PS3 shower to catch everything that gets past drum screen 70mc the wool goes to 5mc and needs changing every 3-4 days. I check my K1 moving bed periodically but has been clear up to now. Pond is 2500g and have 4000 per hour through drum.
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27-11-2015, 05:53 PM #18
its a 70 micron screen so you would think not much would get through but feeding as much as you are in an hour the amount of waste in the dirty side of the drum will be'alot',this is getting broken down by the flow the whole hour small enough for lots to get through the screen.15 min rinse intervals will stop this,get the bead nice and clean now,after this you should really clean once a week.
get the bead and shower run off separate outlets, increase the turn over by another 2000 gals and that will be great, also I would get bhm from everyone for Christmas imo' 70 kgs is not enough.
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27-11-2015, 05:56 PM #19
Hiya
OK Feeding reasonably and a lengthy period between cycles and apparent muck getting through the drum..
The immediate thing that springs to my mind is a potential failure somewhere in the seals so the screen is being bypassed.
How would I test it? Humm I think I would drop the probe down or bypass it so the water in the dirty side could get down real low.. In normal operation after the screen is dirty and the its ready for a clean cycle the rate of drop in the dirty side should increase fairly rapidly so you shouldn't have to wait all night. Id be looking for flow patterns from the seals etc which might just give you a clue, the ideal is to run it till the screen is totally clogged, you should then have it full of water inside.
With one BD you shouldn't be getting muck settling out and breaking down in there.
The bead can make muck by way of dying biofilm etc but this should be a fine dust..
Dave
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28-11-2015, 07:42 AM #20
Cheers chaps, I'll have a little play around this weekend and report back.
Running heater at low temp?
Covering the pond with polycarb should be enough to stop water temps dipping below 6C for the most...