With my 1hp Kasco I can see water moving throughout my entire 2/3 acre pond. And I can see little swirls, or a vortex of water over 100 ft away. I will start a post regarding this when I get everything set up. Snipe's venturi set up has me doing some research on systems I may be able to incorporate also. In particular this set up......

https://www.youtube.com/watch?v=IZyrL5Ojqpo


Just a Pond Boss 'sponge'