The Planted Tank Forum - View Single Post - Barr Internal Venturi CO2 Reactor
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post #9 of (permalink) Old 09-15-2006, 01:42 AM
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Originally Posted by cbennett View Post
i can't seem to wrap my head around the purpose of the tubing that goes from the intake to the middle of the clear tube.
The powerhead pulls water from the tube causing a whirpool effect.

Ehfipimp #273 ( Eheim Classic: 2260, 2217, Eheim Ecco: 2236, 2232 ) Fluval FX5

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