Hi Cecil,
I have answers to some of your questions. We are using a 1/3 hp pump. I don't know what kind of diffusers are at the bottom of the pond. We hate to drag them out because they would come to the same area that our geo thermal loop is in and I don't want to mess something up. I guess I need to find a D.O. Meter. The gentlemen that we bought a fountain from said he runs his aerator 24/7 all year long. We just are so new and don't know what the best options are.
Thanks for trying to help..
Vicky
