Free operator tool
Pump run time and volume calculator
Flow, time, and volume are one relationship: gallons equal flow times the minutes it runs. Enter the two you know and this tool finds the third, showing every step. It is the pumping math behind wet wells, lift stations, and tank fills on the Class D exam.
How the tool works
A pump moving water at a steady flow adds up over time: gallons equal the flow in gallons per minute times the minutes it runs. Turned around, the time to move a known volume is the gallons divided by the flow. Open the worked solution and every number traces to a value you entered.