For Solar powering an aeration unit in ones pond would you need to buy a new aeration unit or is their a way to convert. I don't know much about aeration or solar but I guess what Im trying to say is, If you already have an aeration system you wouldn't have to buy a new unit that is more conducive to solar power, would you? Could you convert your old one into solar power? Whats the approx cost of doing something like this?