Wells, Sump Pumps and Septic Sewage Systems - Well Flow Test
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ruauu2
09-08-09, 12:49 PM
I want to test the flow of my 90-foot deep well. The well pumps to a bladder tank and there is a hydrant near the well.
I was told to test the flow like this: Open the hydrant, let the pump run until water stops flowing out the hydrant. Turn the pump off, wait 60 seconds and turn the pump on again. Measure the volume of water pumped until it runs dry again and that is the gpm.
My question is will this method be roughly accurate if I cannot isolate the rest of the system beyond the hydrant?
I'm thinking that during the test when the water runs out the first time, the bladder tank will be relieved of pressure and since the hydrant is in line nearest the well head any effect from the rest of the system will be negligible.
I was told to test the flow like this: Open the hydrant, let the pump run until water stops flowing out the hydrant. Turn the pump off, wait 60 seconds and turn the pump on again. Measure the volume of water pumped until it runs dry again and that is the gpm.
My question is will this method be roughly accurate if I cannot isolate the rest of the system beyond the hydrant?
I'm thinking that during the test when the water runs out the first time, the bladder tank will be relieved of pressure and since the hydrant is in line nearest the well head any effect from the rest of the system will be negligible.
Jack the Contractor
09-08-09, 05:38 PM
That test will tell you pretty close. Good Luck