Patent ID: 8337170

Claim:
A system for raising water from an underground source of water to an aboveground storage tank consisting of: an aboveground sealable storage tank including an upper surface exposed to the sun and a lower surface; a proximal end for receiving water from the underground source and a distal end including a tap for discharging water from said storage tank and wherein said proximal end of said storage tank is elevated above said distal end so that water from said underground source accumulates in said distal end of said storage tank; a plurality of mirrors for reflecting the sun's rays onto said storage tank; a heat absorbing coating of black paint on said upper and lower surface of said storage tank for absorbing heat from the sun's rays and from said plurality of mirrors to thereby heat the air in said storage tank said plurality of mirrors for focusing sunlight onto said lower surface of said storage tank; a first one way valve in an upper portion of said storage tank near said proximal end thereof for allowing air to escape from said storage tank when the sun's rays are incident upon and reflected onto said heat absorbing coatings and said first one way valve closeable when said sun's rays are no longer incident upon or reflected onto said heat absorbing coatings whereby the contraction of the heated air on cooling draws water upwardly from a first level and into said storage tank; and a second one way valve in a lower portion of said storage tank near said proximal end thereof and connecting an upwardly extending pipe in said storage tank, wherein said second one way valve is closeable when said sun's rays are incident upon or reflected on to said heat absorbing coatings and open when the sun's rays are no longer incident upon or reflected onto said heat absorbing coatings so that the contraction of the cooling air draws water upwardly from said first level and into said storage tank; a plurality of capillary tubes extending upwardly to said first level for drawing water from an underground source upwardly to said first level and said pipe extending upwardly from said first level to said storage tank to thereby raise water from said first level through said second one way valve and into said storage tank when said first one way valve is closed and said second one way valve is open; and, said system further consisting of; a battery, an array of solar cells for charging said battery and a positive displacement pump raising water upwardly to increase the volume of water resulting from cooling of heated air.