rabbut
I don't bite, all that often...
I find that I have to manually prime a Fluval 04/05 after a few starts. This is how you prime a classic Eheim also. In theory, though both (Fluval from experience, classic from comparisons of design) are a PITA to prime, they are using the same technique, so should be equaly as difficult as each other... IME the Fluvals get large and hard to clear air-locks after priming, which the classics apparently do not get...
All the best
Rabbut
there is no buttons/ levers on my eheim classic 2215 so i cannot prime it. In theory it is supposed to self prime due to the positioning of the inlet and outlet however that is not the case![]()
I found that the prime leaver on the Fluvals broke after two or three uses, so I'd argue that the Fluvals don't have any priming buttons/levers to speak of either.
Fluvals aren't hard to use relative to some things in life, but realtive to compeeting filters they are IME.
To prime a Fluval for the Fourth time in it's life


All the best
Rabbut