Originally Posted By: Bronco Billy
...I'm not exactly sure of the purpose of the hose barb, or if the same system would work without a hose barb in place?

Is the purpose of the barb to reduce flowing water volume and increase pressure, enhancing the ability of incoming air to be able to mix with water? Or is it to create suction? Or both?


The barbs are key to making it work. Effectively, the purpose of the barbs is to decrease the cross sectional area which will increase the velocity of the water which produces a lower pressure. The lower pressure will actually cause the air to be "sucked" into the flow at this point. It is called the venturi effect.

Last edited by Bill D.; 12/29/16 09:36 AM.
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