Beneficial Bacteria

[koiguy1969]

squidhead,you are correct sir..with enough flow (effectiveness goes up with flow increase).and when its really a venturi..not just a black ABS sreet pipe tee with an open end...altho that will break the syphon effect if the pump should stop.

 

[addy1]

i am working on figuring out how to add a venturi to my bog. The water fall will add O2 to the pond, but i want extra O2 to make it to the bog.

i am trying to decide if i should put in on the output side of the pump into the bog.

Great forum!

 

[PS3]

how do i make one and will this venturi with my drum or its just another part??

 

[Squidhead]

To make a "true" venturi you will have some head loss. The venturi should be right after the pump or right on the pumps output. I had some good links but they are lost on my dead laptop. I'll try to find a good DIY or Just get a Rio pump
http://www.fosterandsmithaquatics.com/product/prod_display.cfm?pcatid=4671,

they come with the venturi attachment. You could put it in your filter, in your pond, in a gravity fed basin, or just in directly in the pond or bog and just get creative with camouflaging the power cord and airline.

 

[Squidhead]

Here's one, http://www.koiadventures.co.za/Home.aspx?Page=UsrGeneric.ascx&Rec=229 of course use comprable materials found here in the US. I would actually put the thing as deep as possible if the pump or output was directly in the pond. This way it get's down deep where the Koi are and breaks up the thermal layers of water. Also more contact time with the water and less view obstruction.