bad impeller ?

[eminor]

Hello, i have the eden 521 canister filter, there is steel shaft, what seems strange to me is that the shaft is like stuck to the impeller, I can't turn the impeller around, is it normal? i can't separate the impeller from the shaft...

the filter un into a 51 liters tank, the fliter seems weak to move all the water...

 

[erwin123]

Youtube review of 521
Sorry to hear you are having problems with your equipment. If your flowrate has been dropping, this will contribute to instability problems in your tank.
At about 10:00, there is a demo of the flowrate - if your flowrate is about the same, then there's no problem.

 

[eminor]

Youtube review of 521
Sorry to hear you are having problems with your equipment. If your flowrate has been dropping, this will contribute to instability problems in your tank.
At about 10:00, there is a demo of the flowrate - if your flowrate is about the same, then there's no problem.

It seems similar, there is definitely not 800l/h in that flow, not even 400, that's weird