The picture displays the mechanism of solar water pump.
Overall, The solar pump works under the heat energy of sun. There is various process for its operation. The major way of operating this is solar panel photovoltaic cells. The 1/3rd part of panel is under the ground level and there is bore pump and water tank through which the water is collected and distributed throughout the village.
Looking at the details, the solar panel photovoltaic cells must face the direct rays of sun and the dc power from the panel is activated. Then after there is bore pump which is a under-grounded bore or a well, the water in there is heated by the power of Dc from the sun and the warm easter is collected.
Furthermore, the water tank is filled with the water which is the water of bore hole or well. The tank is over the ground and the hot water us usually collected there so through that drum the water is distributed to all of the villagers.