Saw this on a duck hunting show I just watched. Pretty neat concept and makes pond management and flooding possible on a a serious budget. The guys said they ran it for 15 hours on a tank of gas. Things I wonder about: longevity of a gas engine running long hours? Also better have that thing well stabilized if you’re going to run it and leave it. Finally, I wonder what kind of system it has to shut off if it gets clogged?