Know some folks doing this now. But he is in the pond maintenance business. Check with some of your local pond management companies to see what problems exist in your area and how to overcome them. I'm looking out over a beautiful pond right now that used to allow swimming. Now there are 3 known alligators in it. No swimming for me anymore. There are also biological concerns to consider. The lake in our neighborhood used to be a great spot for swimming, fishing and skiing. But a friend picked up a microbe of some sort in his ear. It went to his brain and he died. Buzzkill huh?