The winter aeration unit was placed in the NW corner of the lake in late October before the electrical lines were hooked up at the shoreline. As of December 22^nd, the final connections were made and the aerator was turned on. It has been running continuously since that time (24x7). Areas of open water are marked with 'Thin Ice' signs around the entire perimeter of the opening, which has varied in size from roughly 50' x 150' feet to 150' x 400'. Here are some photos before and after that activation.