I have rain about 8 months out of the year and dry for the remainder. During the rain Ifill up in the second month and the rest goes over the spillway.

What I would like to do is pump water from the bottom of the pond to replace the overflow caused by the rain. The pond is about 12 to 15 feet deep. I want to place the pickup near the bottom and use the water level to turn on and off the pump, sorta like a toilet tank float switch.
I don't intend for the pump to keep up with rain fall just keep close to the underground transfer. That runs about half to 3/4s of and inch a day.
It's my idea so I don't see any flaws and that means that I need help.

1/4 & 3/4 acre ponds. A thousand miles from no where and there is no place I want to be...
Dwight Yoakam