Thanks for the replies. I would like to set up a solar panel with a battery backup system. Not sure if I should use a bubbler, diffuser or an air line. I don't know what an air line does but I have read about them on this site. My pond is probably 75 yards long 15 yards wide and will probably dig it 4 -5 ft. deep. What would be the best set up keeping price in mind. I would like to go solar because they seem relatively maintenance free. What size solar panel do I need, what size pump or diffuser or what ever would be best. Still learning all the language. Any help would be great. Damon
