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Old 10-15-2015, 12:16 AM   #1
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Aqua Clears noise level

How quiet are these filters supposed to be? I have had 2 AC50s and 2 AC70s now, and the only one that has been dead silent to the point I have to touch it to see if it works is the first AC50. The other 3 have rattled no matter what I do. I switch impellers and the noisy filters impeller rattles in the quiet AC50. Got a new AC, this time an AC70 and the same thing happened. I had finally had enough and exchanged it for another AC70 and it still makes noise. I have checked the impellers for damage and I can't find anything. I have am at my wites end with this brand. People swear by them, but right now I swear against them. If this most recent one doesn't quiet down by sunday its getting booted and replaced by a sunsun.
My on time delivery to the East Coast has been better than these ACs...

Back to the original question how quiet are these filters for everyone on a scale of 1-10? 1 being you can hear a pin drop next to it and 10 being water splashing from a HOB.

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Old 10-15-2015, 12:45 AM   #2
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I have 2 AC50s. I can hear the water falling back in the tank, but not the filter, unless the cover is not on properly. That gives it a humming sound. When that happens, I tap the cover and the sound goes away.


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Old 10-15-2015, 12:57 AM   #3
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If i put the cover on it is even worse. It sounds life the impeller is hitting something in the motor or in that area but i can't figure it out.

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Old 10-15-2015, 01:49 AM   #4
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I have 3 70's, 2 in my living room tank, one in my bedroom. The one in the bedroom of course tends to make more noise then the other two. When the impeller starts making noise, sometimes I'll stick my finger in there and push the impeller down because I think it's rattling the piece above it. Or I'll pull the piece above it up a tiny bit. I actually do this with the filter on so I can tell if it worked immediately.
Sometimes if the filter is not level it may make noise.
The only other noise would be the lid rattling like previously mentioned, which I usually put something on top of like my non aquarium plants.
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Old 10-15-2015, 02:01 AM   #5
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Quote:
Originally Posted by DaddyD View Post
I have 3 70's, 2 in my living room tank, one in my bedroom. The one in the bedroom of course tends to make more noise then the other two. When the impeller starts making noise, sometimes I'll stick my finger in there and push the impeller down because I think it's rattling the piece above it. Or I'll pull the piece above it up a tiny bit. I actually do this with the filter on so I can tell if it worked immediately.
Sometimes if the filter is not level it may make noise.
The only other noise would be the lid rattling like previously mentioned, which I usually put something on top of like my non aquarium plants.

I was going to mention that, too. Have you made sure the filter is level? Try moving the little wheel that levels the filter against the glass. That may be the source of the problem.


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Old 10-15-2015, 11:24 AM   #6
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It would make sense if the plate was pushed down to far, it seems like the only thing the impeller could hit

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Old 10-15-2015, 06:30 PM   #7
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Sunday I am getting a sunsun. I tried pushing the impeller down, and messing with the plate above the impeller to no avail. I will not buy or recommend these filters to anyone who can't stand noise.
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Old 10-16-2015, 08:51 AM   #8
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I have a 30 and a 50 running in my bedroom. They are quiet enough for me to fall asleep but not dead silent. All the 70s and 110s I have had were far from quiet. I'm going to be doing the same as you and getting either sunsun's or fluval canisters. Let me know what you think of the sunsun when you get it.
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Old 10-16-2015, 12:09 PM   #9
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I have a few ACs, some over 20 years old, and you can't hear any of them. If the filter is noisy check the hole in the impeller to be sure it hasn't gone out of round and check the shaft for wear. As well, make sure there are no bits of metal inside or outside of the impeller. they are magnets and tiny bits of metal can stick to them causing them to run off centre.
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Old 10-17-2015, 09:39 PM   #10
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I just bought AC70 a few days ago and have it running now. It is in the living room and it is not dead slient. I can heard it all day, a low humming sound. I am not sure if it is a default.
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