If so you may have noticed the thrusters were finally powered up by ComEd Wednesday. The dip tends to contain a lot of surface algae and stagnation due to the small amount of water that enters the lake from that small stream. The hope is the thrusters will move the water enough to prevent stagnation in that area. Time will tell if this is the solution. The three units are leased rather than purchased so if this isn't the answer other avenues can be explored.