I bought a fluval 304 second hand off e-bay, I already have a fluval 305 so knew how to set it up etc. but when it came to pumping the siphon to get it started the flow just wouldn't start, I pumped for about 15 minutes and nothing happened except the syphon pull thingy snapped... I filled the canister with water and turned it on to see what would happen but it justy made noise and again water didn't flow.... Anthing I can do now to get this thing working??
Thanks
Thanks