Water pumping system using solar energy

A water pumping system for delivering water from a water source (50) to a container (90) at a higher level than that of said water source (50) and comprising:

• a solar collector assembly (A) including at least one solar collector (10) containing therein a heat transfer medium with a predetermined temperature;
• a heating module (30) including an insulated housing (31) having water received therein, a circulating means (32) mounted in said insulated housing (31) and communicating with said at least one solar collector (10) for conveying said heat transfer medium in said at least one solar collector (10) to circulate through said circulating means (32) such that the water received in said insulated housing (31) is evaporated to vapor with a predetermined pressure by means of said heat transfer medium;
• a receiver (40) communicating with said insulated housing (31) for receiving the vapor created in said insulated housing (31) therein;
• and
• at least one pressure chamber located at a level between said container (90) and said water source (50) and communicating with said water source (50) by means of a water pipe (51) for conveying water contained in said water source (50) into said at least one pressure chamber, a conveying tube having a first end mounted on an underside of said at least one pressure chamber and a second end connected to said container (90), a conduit communicating between said at least one pressure chamber and said receiver (40) for conveying the vapor received in said receiver (40) into said pressure chamber so as to force water contained in said at least one pressure chamber into said container (90) via said conveying tube, and a one-way valve mounted on said conduit between said at least one pressure chamber and said receiver (40).