Which type of pump is widely used for small, private wells due to its low initial cost, but rarely used in public water systems due to low efficiency?

The jet pump is a type of pump that is often favored for small, private well applications primarily due to its low initial cost and relatively simple installation process. It operates on a principle that uses a jet of water to create a vacuum that pulls water from the well into the delivery system. This makes it a practical option for individual households where the demand for water is not very high and where cost is a significant factor.

In contrast, public water systems often require a higher level of efficiency and reliability, as they must serve a larger population and sustain higher demand. Jet pumps, while effective for smaller applications, generally have lower efficiency compared to other pump types, such as submersible or vertical turbine pumps, which are designed to handle larger volumes of water and operate more effectively at higher pressures. This inefficiency limits their viability in public water systems, where performance and sustainability are critical.