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Doomer · 11-13-2003, 10:40 PM

Is the air intake before or after the impeller ?

On most powerheads it's after the impeller and thus not suitable for injecting co2.

11-13-2003, 10:40 PM	#3
Doomer Planted Tank Obsessed (View User Tanks) PTrader: (0/0%) Join Date: Jan 2003 Location: The Boondocks Posts: 468	Is the air intake before or after the impeller ? On most powerheads it's after the impeller and thus not suitable for injecting co2.