my exp with solar power is they seem to work poorly when you need them to work the most. In other words cloudy days need more aeration and they produce less. Also we have more cloudy days and shorter days in winter when you need it to open up your water. I would look into as Ted said running a long air line from closest electric source. Does the pond have some deeper water? I know you have soem water less than 18 inches for the ducsk but you could place the diffuser on the deep end for more efficency.


Greg Grimes
www.lakework.com