| To the best of my knowledge, there is no such thing as a small footprint vortex.
There are only two classes of solids remover, settlement or capture. Settlement takes it out the flow, but is inefficient, letting the particles thru that are the similar density to water.
Capture is the best, but it keeps it in the flow. By using a screen as the primary remover, most is removed, and by the water flow pushing it away, contact withe the flow is reduced.
By using static K as the fines removal, you get the fines settling in the dead spots which stops the water forcing it into crevices and dissolving out the organics. |