exactly what does "aspirating-venturi" mean?

[JohnK]

I'm trying to clarify what this term refers to? It seems to be used in relation to needle wheel pumps (IE euroreef skimmers).

I'm working out a DIY Ca reactor and have seen this term used for some high quality Ca reactor designs for the Co2 intake (Korallin). I want to work out a top notch design for my DIY reactor so I'm trying to get a clear understanding of the design features on the market currently and I'm confused on this one.

Any input appreciated

thanks
JK

 

[Matt L.]

An aspirating venturi is a contraction in a line to cause a decrease in pressure and suck in air, or in your case CO2 gass,

Matt

 

[JohnK]

Thanks matt,

So aspirating venturi is any venturi and has nothing specific to do with neddle wheel pumps, right?