Today's post isn't a reply to a reader letter, but a short guide intended to answer a question that we often get from well water users: "How can I determine my well pump's flow rate?"
- Open any faucet or hose bib (a hose bib is a faucet to which a hose can be attached; you probably have one on the side of your house or in your backyard) until your well pump turns on
- Close the faucet or hose bib and let your pump fill your pressure tank until the pump turns off
- Using your 1 or 5 gallon bucket, open the faucet again and collect and measure all water discharged until your pump turns back on
- When the pump turns on, immediately close the faucet and start your timer
- When the pump turns off again, record the time it took to refill your pressure tank in seconds
- Divide the number of gallons collected in Step 3 by the number of seconds recorded in Step 5
- Multiply the number from Step 6 by 60 – this is your pump’s average pumping capacity in gallons per minute
To make your calculations even easier, we've provided a flow rate calculator on our website.