Ok thanks I will try a timer. As For aeration I have been running 24/7 for 4-6 weeks. I am seeing small particles of sediment as well as black debris the 5 or so inches in size floating on top the will work their way out of the drain pipe. Those pieces are coming from the bottom I think. There is little to no soil entering the pond from the sides. How long might it take for a pond to find itself after starting aeration? Thanks for the help