A thermal-cycle powered water pump, comprising:
- an open-ended conduit having a first end and a second end, said first end adapted to be disposed in a source of water and said conduit adapted to be filled with water;
- a rigid water storage tank having an inlet and an outlet, said inlet in fluid communication with said second end of said conduit, said water storage tank adapted to be disposed in an environment that experiences a daily thermal cycle, said water storage tank adapted to transfer heat energy between the environment and an interior of said water storage tank, wherein said interior of said water storage tank includes a first region of collected water and a second region of air, wherein transfer of the heat energy from the environment to said interior increases air pressure of said second region, and wherein transfer of the heat energy from said interior to the environment decreases said air pressure of said second region, and wherein the environment is an outdoor environment and the source of the water is underground;
- at least one rigid air tank adapted to be disposed in the environment and in fluid communication with said second region of said water storage tank, each said air tank adapted to transfer heat energy between the environment and an interior of said air tank, wherein transfer of the heat energy from the environment to said interior of said air tank increases air pressure in said interior of said air tank, and wherein transfer of the heat energy from said interior of said air tank to the environment decreases said air pressure in said interior of said air tank;
- a first check valve disposed in said conduit for opening a flow path from said first end to said second end only when said air pressure of said second region is less than a water pressure of the source of the water;
- a second check valve in fluid communication with said outlet for opening a flow path from said first region of said water storage tank to the environment only when said air pressure of said second region of said water storage tank is greater than an ambient pressure of the environment;
- and
- a tank support adapted to be positioned at a ground surface of the outdoor environment for positioning said water storage tank and each said air tank above the ground surface throughout the daily thermal cycle, wherein said tank support positions said water storage tank and each said air tank in a side-by-side arrangement and at an angle with respect to the ground surface, wherein said angle is between 40° and 50°.