The Bottom Circulator uses the very high volume Select Series Display Aerator pump that is arranged to sit on three large legs on the pond bottom. The legs are designed to sink through the silt until they encounter a hard bottom, thus solving the stability problem that plagues other designs. The Bottom Circulator is typically positioned so that the pumped water will swirl around the pond, and the discharge is inclined slightly so the pumped water is ultimately pushed to the surface. This allows the entire pond to be circulated and the deep, oxygen poor, water to be brought to the surface for natural aeration. This is an excellent method of enhancing pond water quality without having a surface pattern. An aspirating version is available that induces air into the pumped stream to provide direct aeration, but at a reduced flow.