Suevia pasture pumps are animal-operated mechanical waterers, specifically diaphragm nose pumps, that let livestock pump their own fresh drinking water from wells, streams, or lakes while grazing in fields. They feature a heavy-duty cast iron or polyethylene build, a leverage arm that animals push with their muzzles, and a high-performance membrane capable of drawing water from a depth of 7 meters (23 feet) and a length of 20 meters.