Thread: Another which combi drum question.

Queni qk35, running here for 8 years no issues. Aqua drum 35 has a larger bio chamber though.

Profi drum for me

Your dealer has a vested interest in something other than what is right for you bud. Aqua source have stood the test of time. I had one myself. I just thought the drum was a bit on the small side If I had ent got a 55/40 profi at the right price I probably would still have it. Like you , I think the oase are toys. Some would disagree

Thanks all, I’ve just looked at the Aquasource website for instructions - they are the best I’ve seen - very detailed but clear to understand. Benefit being it may just fit in the space I have and can get up to 225litres of media in the bio (it says 450litres of water capacity which infers that as only 50% it would move around really well - most manufacturers apply the two-thirds rule which would suggest 300litres possible).

Without a doubt the spec is the closest to what I’m after and would mean I could run purely on an air lift as wouldn’t need a shower.

Originally Posted by big h

Your dealer has a vested interest in something other than what is right for you bud. Aqua source have stood the test of time. I had one myself. I just thought the drum was a bit on the small side If I had ent got a 55/40 profi at the right price I probably would still have it. Like you , I think the oase are toys. Some would disagree

What size pond did you have? What is the synergy 35 combi you had? If so did the drum struggle?

Pond is 2200 g. I’ve had the synergy 35 and synergy 35 combi. I do think the drums are small on the synergy but obviously rated at 35000 litres an hour. I have an auga 20000 pump( 20000 means 20000 with those pumps ) and the drum only just kept up when I did flushes etc The profi drum is much bigger But they aren’t cheap

Originally Posted by big h

Pond is 2200 g. I’ve had the synergy 35 and synergy 35 combi. I do think the drums are small on the synergy but obviously rated at 35000 litres an hour. I have an auga 20000 pump( 20000 means 20000 with those pumps ) and the drum only just kept up when I did flushes etc The profi drum is much bigger But they aren’t cheap

hmm that’s interesting as I haven’t seen one in the flesh - given I have 4500gal in the pond alone and I get a lot of debris from the shrubs and trees (even though it’s netted) I’m guessing the drum will struggle. I thought I’d made a decision….back to being undecided…..

You should be running at around 11000 litres per hour on your pond ( give or take ) so it should be ok

I’m what you call a “ 6 inch nail “ sort of a person so go way over in anything I do

Having spoken to quite a few koi dealers recently I’m now of the understanding that turnover through drum should be whole pond volume every 45mins, but still once every two hours on the fluid bed; main reason is to remove solids as quickly as possible for clarity and to prevent it getting mushed up therefore reducing strain on bio….

Never heard that one bud.Trust me,once every two hours through the drum will give you crystal clear water.My 20k pump is running at 20% so a turnover every 2.5 hours and its gin clear..I will turn the flow up slightly as it warms up but my pump never goes above 35% unless im flushing the bottom drain..Slow and steady wins the race

Another thought - spare parts….a little research shows that spares are readily available for Burtons but can’t find anything for the others - prices seem reasonable for Burtons too.

Profi drums are now made in Doncaster. Synergy drums are made in Holland ( Mackoi )