Pump Sizing and Power Requirements Objectives:
• You will learn the two functions of a pump.
A frequent question I receive from a farmer, nurseryman, or greenhouse operator about pumps is, How many horsepower pump do I need?
These, then, are the two factors involved in selcting a pump. A pump typically must lift water from a lower level and then push it to a higher level with enough force to make the sprinkler nozzles or trickle emitters work properly.
In addition, the power plant - either an electric motor or an engine - must be sized to operate the pump to achieve the flow and pressure. There is a two-step process to sizing the correct pump for a job.