Here was my solution I shared a while back. I have made some modifications since the video and pics. The best improvement was a chute that attaches to the rear discharge where the bagger normally goes that directs the clippings away from the pond and under the tractor. I am on my fourth year of using it and still going strong.

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=303020