The main benefit of a solar water pump is that it uses free sunlight. Solar water pumps reduce reliance on electricity or diesel, and once installed, there is no ongoing cost for electricity or fuel.
Solar pump applications are economically viable because they provide clean, dependable power in remote areas while saving fuel and power line costs. Solar water pumps are simple to install because they do not require a battery or battery charging equipment.
Water required per day - Solar water pumps are only operational during daylight hours. If water is required at night, it can be stored in an elevated cistern or pumped using a separate PV system's battery power.
The solar panels must be cleaned with soap and water every couple of years. Furthermore, as long as there is sunlight, the solar panels will continue to function for another 25 years or so with no additional maintenance. Take note of the water flow when turning on a faucet.