What is the typical function of a well screen?

The typical function of a well screen is to prevent sediment from entering the well while allowing water to flow through. Well screens are designed with perforations that enable water to pass through while filtering out sand and other particulate matter. This is essential for maintaining water quality and preventing damage to the pump and other components of the well system. By efficiently managing the entry of sediment, well screens help ensure a reliable water supply and reduce maintenance issues.

While some might think that well screens could filter out bacteria or increase water pressure, these are not their primary functions. Well screens are not capable of completely filtering out bacteria, as they are primarily designed for sediment control. Additionally, well screens do not serve to increase water pressure; rather, they facilitate the flow of water from the aquifer into the well. Lastly, the function of insulation from temperature changes is not associated with well screens, as their role centers around water filtration and flow management.