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Eheim Air pump 400


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I bought an Eheim Air pump 400 yesterday, and the two outputs don't seem to put out the same amount of air from each one..

Are they supposed to? Or is this the norm with air pumps? That they dont push out equal amounts of air from each output?

I got it from a shop, and I'd gladly walk in for a swap or refund if this is not normal!


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  • 2 weeks later...

FYI for those who maybe interested...

I got a swap for another one... it all matters where you place the air stone and what length of air hose you run etc.. Silly me didn't think of that..


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