Most of the ice on the pond is now at 11 inches.
30 feet behind the circulator the ice is 7 inches.
15 feet behind the circulator the ice is 5 inches.
Since the circulator only runs at night if the temperature low enough, a thin layer of ice generally surrounds it. When running, it only takes a few minutes for the ice to clear in a V-shape and then the open water spreads along the shore line.
