Wow, I had no idea about the tubes and stuff!
Good information and greatly appreciated!
I do have several loops on the intake and outflow tubes. So on the next water change, I'm going to cut them shorter.
I do use fine filter floss, and the flow in the beginning was great. It's slowed down considerably now. So perhaps I can just remove the fine filter floss and replace with one that's just a bit course.
Also, I keep hearing slushing noises or bubbles being broken up by the impeller. There are no leaks though. The filter sits inside a bucket so if there was a leak, it would be relatively contained.
What d'you think could be causing these noises? A bad O-ring?
As added information, my pressurized CO2 doesn't feed into the filter. I use a glass diffuser in the tank, situated infront of the outflow.
Any suggestions you have would be greatly appreciated!