| 摘要 |
A water agitation 400 apparatus for use with rainwater storage tanks comprising a paddle 435 for agitating the water contained within a rainwater storage tank 405 and drive means 455, 465, 460 configured to impart motion to the paddle in response to an environmental condition. The environmental conditions may be rain, wind or sunlight. Ideally, the paddles 435 are connected to a sleeve 425 with an internal thread which engages with the threads of a vertical axle 440 that is rotated by the drive means. The apparatus may further comprises a float 410 and collar 415 which impart motion, via the sleeve 425, to the paddle in response to a change in water level within the storage tank. The drive means may comprise a wind turbine or a photovoltaic cell coupled to an electric motor. The apparatus is used to reduce and/or prevent bacteria, algae or sediment build-up. |
