GridBee AP air-powered mixers from Medora Corporation combine patented long-distance circulation technology with a clog-free air-powered pump. With no moving parts and no electricity in the water, they offer years of maintenance-free operation. Float models feature an adjustable intake depth—up to 100 feet or more for hypolimnetic applications—and are designed for use in lakes, storm water ponds and wastewater ponds. Pedestal models are designed for use in activated sludge wastewater basins, wet wells and industrial tanks and basins.