| I must be doing it all wrong because I have always put the the tangential inlet low on the vertical wall, put the waste drain at the bottom-center of the cone, and out the pump suction at the top center near the surface. While the water is swirling, there is a net movement of particles down toward a central deposition zone and a net movement of water up toward the pump suction. I am embarassed to say that I have never owned a Vortex-brand filter, but I have built a few swirl separators. I did not know that the flow was that low in a Vortex. However, since size (footprint) is an issue, I would think you would want to use the approach which processes water the fastest (high unit volume per unit area per unit time). That would make a swirl separator more desirable in many applications. steve hopkins |