Depending on how the machines are deployed, solar-powered circulators can also be used for: 1) reducing or else increasing evaporation in a water body (US Bureau of Reclamation tests at Salton Sea Test Station, 2003-2004), 2) reducing manganese and/or sulfide buildup at the bottom of a water body, 3) improving fish spawning in natural water bodies, 4) firming up mucky lake bottoms, and 5) reducing heat buildup at the bottom of saline water storage ponds. New beneficial applications for solar-powered circulation are constantly being discovered.