Here are some pictures of a giant skimmer made from roto mold storage container, commercial orca needle wheel pump, and scrap acrylic. It's a vertical 40 gal storage container from Den Hartog Industries. It has to have air injected into the venturi. I have an air pump I can adjust.
It's definitly not the under the stand skimmer. I also use a marlin pressure pump for the inlet water. That's over 2000gph into the skimmer.
http://i24.photobucket.com/albums/c3...00_0005_00.jpg
http://i24.photobucket.com/albums/c3...n/000_0002.jpg
http://i24.photobucket.com/albums/c3...n/000_0001.jpg