Weissguy , keep in mind. There are other ways, diffused aeration for exapmple that can do about the same thing on a smaller body of water much cheaper. I sell them all, surface, lake life and bottom diffused b/c each have their place. I think if smaller than 3 acres then diffused is way to go and if shallow might look into surface aeration. I like the diversity avialable now to my clients.