fishtv Posted July 11, 2007 Report Share Posted July 11, 2007 Hey there, I have a fluval 303 external filter and whenever i stop it to clean the internals i always have a big battle to get it going again. Can anyone please impart some very useful knowledge on this subject? would be much appreciated! Quote Link to comment Share on other sites More sharing options...
Wok Posted July 11, 2007 Report Share Posted July 11, 2007 when you clean the filter, make sure you fill it with water right up to your shutoff valves. Give it a shake first then fill Turn on the intake side first then the outlet. Simple. I have one as well. but I also have one of the Fluval sucker balls too :lol: Quote Link to comment Share on other sites More sharing options...
jayci Posted July 11, 2007 Report Share Posted July 11, 2007 If my aqua cf1000 fails to start, I just turn on and off a few times. Quote Link to comment Share on other sites More sharing options...
fishtv Posted July 12, 2007 Author Report Share Posted July 12, 2007 Thanks heaps guys, finally got it going, I'm a bit of a newbie on external filters! Quote Link to comment Share on other sites More sharing options...
Tsarmina Posted July 12, 2007 Report Share Posted July 12, 2007 i have a 203 and a 403. i found the easiest way for me is to fill the canister, put the lid on. put in position near tank. get funnel, put in intake hose. put outlet hose in tank, but not in water. pour water into intake hose till full. put intake hose into water. put thumb over outlet hose and lower to filter level. CAREFULLY lift thumb, watching till water is near end of hose. cover. put hose in water, release thumb. turn on filter. so much easier than siphoning Quote Link to comment Share on other sites More sharing options...
Ira Posted July 12, 2007 Report Share Posted July 12, 2007 Is the impeller not starting or is it not primed? I always find it works best if I don't fill it with water beforehand. Just connect the hoses, let it fill up by siphoning from the tank and once it stops plug the power in. 80% of the time it goes right from then. Rest of the time I pop the outlet hose off at the tank and siphon into a bucket through the cannister until it starts pumping. Quote Link to comment Share on other sites More sharing options...
fishtv Posted July 13, 2007 Author Report Share Posted July 13, 2007 Yea i just let it siphon from the tank and when it is full flick it on. Somedays it will start straight away and other times it will take upto 30 mins to start. I don't think it has any provisions for priming on it? Quote Link to comment Share on other sites More sharing options...
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