I recently purchased a Fluval C4 for my 30 gallon and was very excited to set it up. I immediately noticed it had a significant noise to the impeller which was disappointing but not problematic since my last filter was about just as loud. It filtered well, moved a lot of water, and I was pleased.
I opened it up today for maintenance for the first time and to my dismay I found that the feed tube for the trickle tray (the black plastic portion that sits over top of the impeller) was moving absolutely no water. None. I fiddled with the filter for a while and got it to start moving some water again, but quickly realized that the filter seems to move MORE water when on low settings (by this I mean with the tank tube nearest the part on the cover with the short bar indication). Both through the trickle tray tube and just through the filter in general.
I'm very frustrated with this filter at the moment and want to know if anyone else has had this issue with their C4 filters. My main issues are:
1) Sound. It's noisy (I'm going to put some vaseline on the impeller magnet to see if that helps)
2) Water flow settings. Are they labeled backwards or something?
3) Trickle tray feed tube. Why did it seem to stop up on me, it wasn't clogged.
Any help is appreciated, I'm writing this in haste because I'm way behind on some paperwork and just wanted to post this up. Tank maintenance was only supposed to be quick tonight! Sheesh...
EDIT:I've sent an email to the manufacturer to see if they can provide some help on the issue, possibly have the impeller or motor warrantied. I'll update later so anyone interested see how things turn out.