Join Date: Sep 2012
Location: Jackson, Tennessee
I second the impeller, I had one that no matter what I did rattled like crazy... as far as I could tell, nothing was broken and all was in order. no matter how much lube I put on the thing, it kept on rattling.
I even checked down inside where the impeller rests, to ensure nothing was sticking out or rubbing that would have caused the noise. I finally decided to take the impeller out of one of my other pumps and found it was silent..
Having said that, while I don't have an aquaclear, I would say, check where the impeller rests inside the filter and make sure there are no burrs or seems or anything that may have somehow become lodged in there.
I've also had one filter get air trapped in around the impeller that caused some noise issues. But, all of my filters were second hand... Good luck figuring it out, there's nothing more maddening than that constant repetitive rattle sound.
Last edited by drazend; 01-29-2013 at 08:49 PM.
Reason: I'm an english teacher's nightmare....