12-13-2007, 05:32 AM
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Originally Posted by FuzzAz
I have a whisper 40, the blue dome thing. I have to say I'm not too impressed. its not very quiet at all, and it seams underpowered for 2 - 3 inch air stones in my 36. I think the unique shape is just a marketing tactic so people will buy their cheep noisy pumps. my $0.02
But then again I don't know of any quiet air pumps.
Really? I have a whisper 20 and I find it doesn't make a lot of noise at all! But I could be wrong, I'll go check.... Ok so it does make noise.. I guess I never noticed before? The water coming from the filter is louder then the air pump. If you set the valve in the middle is doesn't make so much noise. I think it's all the vibrations that make the noise, but I'll try what lupin said and put a cloth under it