Well Pump and System Flow Rate (GPM) Calculator
Estimate the minimum peak flow rate your well system needs to support.
15+
Minimum Required Peak Flow Rate
8 GPM
Any backwashing filter or softener on this system (iron filters, water softeners, sediment filters) must be sized to sustain this flow rate without a pressure drop. An undersized backwash valve is one of the most common causes of low water pressure complaints on well systems.
This is a planning estimate, not a hydraulic engineering calculation. For pump replacement or new well design, confirm sizing with a licensed well contractor.