How many people out there use a well and a pump to keep there ponds topped off? I have a ideal area for a pond...but because of neighbor complications I cant use the stream directly into the pond. Im thinking about using a pump to keep the pond topped off but there's some math I would have no idea how to figure? Just trying to get a ballpark idea? My future pond will be about 45' x 300' x 6 feet deep. I live in Washington state. So the summer does get hot for a couple months. Evaporation rates etc. Anyone use this setup so I can compare...then ballpark my setup?