fluval 404

If u mean once its started going, then u just have to give it a shake and tip it to the sides etc
 
I would check for leaks if you had air in it, that was the problem with my Fluval 204
 
Time.

And if that doesn't work a slow prime.

I had this problem earlier today - turned out my inlet pipe was in gunk heaven and needed the hosepipe treatment.

Anyone found a smooth alternative to the Fluval corregated tubing? :/
 

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