02-16-2006, 01:09 PM
Join Date: Jan 2006
My eheim is about 4 months old, and it has always been quiet for me. Actually, so quiet that sometimes, I can't even tell it's running until I actually see the water being pushed out of the output.
The only time it makes a noise is when there's some air trapped and is suddenly released into the impeller, then I'll hear the sound of air being impelled.