What is the recommended intake velocity for well screens?

The recommended intake velocity for well screens is less than 1 foot per second because this lower velocity helps to minimize the potential for harmful effects on the aquifer around the screen. A slower intake velocity reduces the chances of drawing in sediment and preventing the well screen from becoming clogged, which can compromise the efficiency and longevity of the well. It also aids in maintaining the hydraulic environment, ensuring that water can flow freely into the well without disrupting the surrounding soil and water table.

Choosing a value higher than this threshold, like 2 feet per second, could increase the risk of sedimentation and might lead to more rapid wear and scouring of the screen material. Consequently, adherence to the guideline of keeping the intake velocity below 1 foot per second is essential for optimal performance and sustainability of the well system.