Jason,
ever siphon gas out of a tank? build a siphon out of 8-12 inch pvc and stand back. build a couple out of 4 inch pvc and give it a week. Your 3-4 acre pond will be drained.
it is absolutly necessary to drain the pond before treating with rotentone. A) cuts the cost of rotenone down B)fish will find places to hide from the poison if the pond is not drained.
I have never seen a pond sucessfuly eradicaed of competing species without draining.
If you dont drain the pond and start over you will always have problems with green sunfish. You can improve your situation by harvesting them, you will never get rid of them. So get ready to have your green sunfish tourny every year, from now on.
If it were mine I would not hesitate to start over. with the right pond management techniques you will have more than just a few big bass, much faster than you think.
keep reading
