Yes you guys are right I could not pull up drum like a bucket from a well but I could weight it down to prevent floating up. Install a rod or rope with a float to guide aerator up/down for maintenance. I do not currently have a system in pond but in the process of making on. I was looking for a way to prevent venturi effect sucking muck from around aerator head. After thing it through I think I would just be delaying the problem as muck would eventually settle in bottom of barrel just as on the pond floor. Thanks back to the drawing board.
