If you will look at the post "will this pump work", you can make a very inexpensive aerator for a small pond. I made this aerator up and it put out quite a bit of bubbles at 10' deep in my pond. It wasn't clearing up my algae (another story) so I bought a larger pump. But the pump recomended in the post was sufficient I now believe. I am now treating the algae situation with the proper chemicals and I will probably use the smaller pump on the other end of the pond, thereby having a aerator on each end and a large fountain in the middle.
