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Old 05-04-2004, 11:31 PM   #1
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AC300 Question

My used ac300 is very noisy. Should I get a new impeller? How do I know its the impeller that's making the noise and not the motor?
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Old 05-04-2004, 11:32 PM   #2
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Buy another, non-Aqua clear filter, which in turn is better. Like a Marineland with Biowheel. *hates Aquaclear*
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Old 05-05-2004, 12:24 AM   #3
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I'm very anti-biowheel. I had a bad experience with one once.

I was away for the weekend, there was a power outage. The bio-wheel dried out and I lost almost all of my bacteria. There was an ammonia spike and I lost a whole spawn of 1 month old fry
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Old 05-05-2004, 12:36 AM   #4
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Quote:
How do I know its the impeller that's making the noise and not the motor?
If you replace the impeller and it's still noisy, then it was the motor
Seriously, start by cleaning it. If it is still noisy, and you trust your LFS, take it to them. If you don't trust your LFS, start replacing parts beginning with least expensive
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The bio-wheel dried out and I lost almost all of my bacteria. There was an ammonia spike and I lost a whole spawn of 1 month old fry
I have bacteria growing not only on the bio wheel, but also on the sponge. That is a crumby way to loose fry
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Old 05-05-2004, 10:26 AM   #5
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Originally Posted by Endgame319
I'm very anti-biowheel. I had a bad experience with one once.

I was away for the weekend, there was a power outage. The bio-wheel dried out and I lost almost all of my bacteria. There was an ammonia spike and I lost a whole spawn of 1 month old fry

Well, thats not exactly the biowheels fault.. Cause in a power out the filter usually has all the water spyphoned out and even the filter media gets dry and dead, so it could easily happen to any type of filter.
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Old 05-05-2004, 10:38 AM   #6
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I've lost power about 10 times with two AC filters and I have never had all the water siphon back into the tank. Once the power comes back on, the filtration resumes with no difficulty. The times range from a few minutes to a couple hours. The level in the media area drops by a bit to match the tank level but when power comes back on everything works fine. Even if you have a really low tank level, it is impossible for the siphon to drain all the water from an AC, because the media area goes lower than the intake tube.

My father lost power on his 55g tank with two Penguin 330s. No one was home, the bacteria on the wheels died, when power came back home finally he ended up with some dead fish after a spike.

With Bio Wheels, my belief is that you can end up with a disproportionate ammount of the total tank bacteria right on the Bio Wheels. So if it all dies from drying out, it can be a big deal.
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Old 05-05-2004, 11:17 AM   #7
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I've had Aquaclears drain completly and need to be refilled with a cup or two of tank water before it'd continue normally.
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Old 05-05-2004, 11:30 AM   #8
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Its impossible for the media area to drain "completely". The intake tube does not go down near as far as the media area does, it can not suck the water out if it wanted to :P
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Old 05-05-2004, 11:42 AM   #9
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I have used AQ filters for over 25 years & have only thrown away 1 due to noise. I have replaced several impellors & that has helped, but if it was run dry, the motor can heat & the hole the impellor goes into can widen & then the motor is trash. I like AQs because I can stack them the way I like: sponge, 1" filter floss (polishes the water) & a bag of BioBlox
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Old 05-05-2004, 12:00 PM   #10
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Quote:
Originally Posted by william
I've had Aquaclears drain completly and need to be refilled with a cup or two of tank water before it'd continue normally.
Quote:
Originally Posted by frimlock3000
I've lost power about 10 times with two AC filters and I have never had all the water siphon back into the tank.
Is it possible that they've changed the design or anything so both are possible? I don't know if you guys have the exact same model/age of product... (making sense?)

It would be funny to see two aquarists duke it out over an aquarium filter. Though now I said that I have a feeling I'm may get reprimanded by the admin(s). I'm not trying to start anything! I swear!
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