Quick Answer
A sump pump and a submersible well pump serve different purposes. A sump pump is designed to remove water that accumulates at the bottom of a basement or crawl space, while a submersible well pump is used to bring water from a well or borehole to the surface.
Submersible Well Pump Basics
A submersible well pump is designed to be submerged in a water well or borehole, typically 100-200 feet deep. This type of pump uses a submerged motor, usually a 1/2 to 5 HP motor, to drive a centrifugal impeller that creates suction to draw water from the well. The water is then pushed to the surface through a pipe, usually with a 1-2 inch diameter.
Installation Considerations
When installing a submersible well pump, it’s essential to consider the well’s water level, casing size, and pump size. For example, if the water level is 100 feet below the surface, a 1/2 HP pump might be sufficient, but if the water level is 200 feet below the surface, a 2 HP pump might be needed. Additionally, the casing size will determine the pipe size and fittings required to connect the pump to the well and the surface piping system.
Matching Pump to Well Characteristics
In order to select the right submersible well pump, you need to consider the well’s characteristics, such as its diameter, depth, and water level. The well’s yield rate, which is the amount of water that can be pumped per hour, will also affect the pump size and horsepower. For instance, a well with a low yield rate may require a smaller pump, while a well with a high yield rate may require a larger pump. Consult with a well expert or the manufacturer to determine the correct pump size and type for your specific well application.
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