Systems and methods for water pumping and desalination

A water pumping system comprising:

• a rigid outer column for receiving and holding water;
• an inner, deformable hose located inside the rigid outer column, the inner, deformable hose having a one-way valve at a distal end of the hose to allow water to enter the hose and an outlet at a proximal end of the hose to allow water to exit the inner, deformable hose;
• a water-raising device for raising water within the inner, deformable hose, the water-raising device comprising at least one compression device to selectively close only a portion of the inner, deformable hose, and move along the inner, deformable hose;
• and
• the water raising device in connection with a selectively inflatable buoyancy support, the selectively inflatable buoyancy support to raise the at least one compression device along the inner, deformable hose.

A method for pumping a liquid, the method comprising:

• providing a rigid outer column for receiving the liquid;
• providing an inner, deformable hose within the rigid outer column, the inner, deformable hose having a distal end with a one-way valve to allow the liquid to enter the distal end of the inner, deformable hose, and the inner, deformable hose having a proximal end with a one-way valve to allow the liquid to exit the proximal end of the inner, deformable hose;
• wherein the inner, deformable hose has a first, rigid configuration and a second, flaccid configuration;
• providing a liquid-raising device for raising liquid within the inner, deformable hose, the liquid-raising device comprising at least one compression device to selectively close only a portion of the inner, deformable hose and move along the inner, deformable hose;
• positioning the inner, deformable hose into the first, rigid configuration to allow the inner, deformable hose to fill with the liquid;
• after the inner, deformable hose has filled with the liquid, the method comprises the step of positioning the inner, deformable hose into the second, flaccid configuration to allow the liquid to exit the proximal end of the inner, deformable hose;
• and
• providing a selectively inflatable buoyancy support attached to the liquid-raising device, and wherein the method further comprises the step of selectively inflating the selectively inflatable buoyancy support to raise the at least one compression device along the inner, deformable hose.