Need SMALL Venturi !!!

[RandyStacyE]

I was wondering if anyone knows of a great functioning, good priced, venturi. I need to convert my protein skimmer into a venturi skimmer.

The Problem:
My skimmer was designed to be a “hang on” skimmer operated by a Rio pump. Looks very similar to a SeaLife skimmer. The skimmer works great as a hang on because the water level in the tank is high, though when I hung this skimmer on my sump, the water level is lower in comparison. The Rio pump will not draw in air and push air/water mix up to the skimmer unless water is equalized like when it is hanging on my aquarium.

If I placed the skimmer into the sump, I don’t gain much. I will either have to create a box (placed high) to put the Rio pump in (fed by my overflow), or feed my skimmer with the Rio and use venturi to inject the air.

 

[loganj]

I would try a Maxi Jet 1200 powerhead with a venturi kit. This is available from Premium Aquatics who is also a sponsor of this site. I have a small skimmer in my sump on the 20g tank. It came with a Rio 200 I think. I changed to the MJ1200 with the venturi kit...big difference. In a skimmer the size you're talking about, I don't think you're going to have enough pressure to adequately operate a venturi on the pressure side of the pump.

 

[RandyStacyE]

I'll look up that powerhead now. I thought Rio pumps do a good job pushing with pressure. I do know that they can not push air/water mixture with pressure, it just cavitates and can't produce volume in that circumstance.

 

[RandyStacyE]

DIY Venturi:

www.randystacye.com

I found a cool method, I use the same method, but make them out of PVC.