I had said I would make a video of my water vortex generator and have been putting it off. This morning I remembered I had made a video record for my self. It has plenty of good footage in it to show that the vortex is strictly a downward flow in the center, as evidenced by the air bubbles being dragged down.
I hope you like Creedence. If you don't, just turn down the volume. There is no narrative as this was intended for my own personal enjoyment. http://video.google.com/videoplay?docid=-8468890437369216439 Dave