Eheim 2217 slow flow????

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Lowlbt

Aquarium Advice Apprentice
Joined
Nov 28, 2012
Messages
47
Hey everyone I'm having problems with my canister pump I recently put in a bio chem zorb there are 2 in my canister and when I primed the pump again and restarted it the flow seams really slow now any answers???
 
Is it making any noise? Is it possible there is still air in the system?
 
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