Hey Lads,
I picked up a Fluval 203 cannister. The chap I got it from said last time he had it running it worked ok.
I threw it in the bath for testing and it made all the right noises (whirring etc) but no sign of water getting sucked in or spat out.
I notices theres two air valve type parts, I've tried adjusting these two various positions but still no joy.
Is this some sort of trick i'm missing or is this likely to be faulty?
