So I have 2 Aquaclear filters, an old AC500 and this brand new AC110. The 500 is old and was making noise so I got a new impeller and a new shaft for it. It's dead silent.
Forward to yesterday, I received a brand new AC110 to put alongside my Eheim 2228 in a 65g. The AC110 is noise!! Something is rattling so I took the motor out and lubbed the impeller shaft and it is still making noise.
I read on another forum the impeller cover might sit too close, and rattling away, but the cover doesn't move, it's locked in place.
Anyone has any idea how to get this noise away? I always get 50% of my AC
filters that come noise and Hagen won't help.