Run at least a couple of hoses wide open until the water stops coming. Time how long the hoses are running. While you are waiting, measure how long it takes for each hose to fill a 5 gallon bucket. When the water stops, the well is dry, and your water level is at the pump intake. Quickly turn off the power to the pump, because a couple of minutes of dry running and you pump will be toast.
Wait an hour and do this all over again. The first time will tell you the total gallons stored in your well. (Gallons per minute times the minutes) The second time will give you the recovery volume and time. (Gallons per hour)
If total gallons available over time is not adequate, a cistern and booster pump may be needed.
There are products that will shut the pump off when the well is dry. These can save your pump and let you produce the most available from a weak well.
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