Water pumps are essential to homes, buildings and industrial plants for supplying water from underground sources. The specific ways they work depend on the nature of use that they are required for. Because there are many purposes that these pumps serve, there are as many types available today.
The simplest water pumps are called well pumps and are typically used for providing water to households and buildings or structures. The water is obtained from an underground source and the capacity with which it is supplied through the pump is dependent on how much water is needed. For example, in a home, the number of bathrooms and kitchens will have to be taken into account for your water requirement to be determined. The pumps themselves are buried underground but they move water through motors that are located above the ground. For taller structures such as buildings or skyscrapers, pressure tanks are used in order to ensure that the right amount of pressure can be exerted to to supply water to areas that high off the ground. As we know, a greater amount of force is needed to push water enough to reach elevated areas. To remove water that collects in home or building basements, the third type of these machines is used, and they are called sump pumps. Sump pumps are used to drain water that may have pooled in lower-lying areas of structures.
To get these water pumps, one can choose between a traditional AC- powered and a solar DC-powered source. There are, of course, advantages to solar water pumps. One is their ability to work at reduced power, thus, eliminating the risk of overheating. They also do not need an electrical line nor pipes as they rely mainly on photovoltaic solar panels running on DC power, and they are easy and cheap to maintain. Solar water pumps are apparently very useful in rural farms or ranches where electricity is not readily available. On top of these, these pumps are environment-friendly in that they do not result in CO2 emissions which bring detriment to the ozone layer. Even in urban areas, a solar pump can come in handy because they can operate even when electricity goes out.
If you are planning to buy a solar-powered water pump, there are two basic concepts you should consider before deciding which one is more suitable. Direct direct-coupled solar pumping systems are one type whereby the solar power is provided directly to the pump from photovoltaic panels and the system works only when the sun is up. Therefore, how much water can be pumped depends on how much sunlight there is and, of course, the type of pump itself.
On the other hand, battery-coupled solar pumping systems are a bit more complicated because, aside form photovoltaic panels, the system also needs other things to work, including a DC water pump, batteries, a tank, a pressure switch, a pump controller and charge control regulator. The purpose of these tools is to store solar energy into the batteries during sunny days. When it's time to use the pump, a steady voltage of DC power will be supplied by the batteries into the pumps over a specific estimated period of time.
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