With my approace, i tried to figure what is mostly available in dry countries: The sun.

My concept evolves around the idea of a solar balloon, that produces a pulling force, when the sun heatens up the air in the inside.

With this force, an underpressure in a closed well is established, which then pumps water to a kind of reservoir from where the water can be distributed in the fields.

This is just a first sketch of my idea, I will work on the well and the distribution to the crops in the upcoming weeks.