Originally Posted by Anna94
Is it normal for new filters to make a rattling noise? I lubed the impeller shaft, but it still rattles a little bit. It's not very bad, but it's easily heard in a quiet room.
I had a bit of a time with my AquaClear 110, which are known for being the quietest filters on the market as far as hang on backs. So much so that I sent the first one back and got a replacement. The replacement was still a little noisy, but after a month of running it is much quieter now. I think if nothing is in the impeller causing the noise then there's a good chance it will settle and quieten down.