FnC, I agree completely! If I had my preferences, I'd prefer a pond that was sealed as much as possible after dealing with this groundwater pond. I thought by digging it down to 22' deep when we renovated it, I would solve my low water during the winter issues. I did, but didn't realize how bad the pond looks when the water level drops a few feet in the Fall, or stays that low for the whole year due to low rainfall/GW levels.
That's one of the reasons why I'm looking into dropping a well just to keep the pond full. Right now, my 25 gpm well won't keep the pond full even if it's running 24/7.