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How to Measure a Static Water Line in a Well
How to Measure a Static Water Line in a Well. The static water level in your well is the normal level while your pump is not active. It is necessary to measure this level occasionally to determine if your well is going dry or to measure its recovery rate. An average of four to six measurements a year over a five-year period will give you a good...
The static water level in your well is the normal level while your pump is not active. It is necessary to measure this level occasionally to determine if your well is going dry or to measure its recovery rate. An average of four to six measurements a year over a five-year period will give you a good idea of the water level trends for your well.
If you have recently pumped the well water, wait several hours to measure the static water level, because it will vary continually as the water fills the well.
Things You'll Need
Small fishing weight or a metal nut
1-1/4-inch to 1 1/2-inch fishing bobber or float
Lightweight fishing line or kite string (approximately 200 feet)
Permanent marker or piece of tape (optional)
Tie a fishing weight or a metal nut to the end of a kite string or fishing line.
Attach a bobber to the line approximately 1 inch above the weight.
Move the well cap or seal off the well. Lower the end of the string with the weight and bobber into the well casing.
Feel the tension on the line as you lower it into the well casing. It will slacken or go limp once the bobber reaches the surface of the water.
Mark the line where it meets the top of the well walls. You can use a permanent marker or piece of tape. Alternatively, you can tie a knot in the line.
Retrieve the weight and bobber from the well. Measure the length from the bobber to the mark you made on the line. Because the static level is from the surface of the water to the surface of the ground, subtract the height of the well walls from your measurement. The resulting measurement is the static water level.
Tips & Warnings
Look in the well driller's log, if you have one. The normal static water level should be in the information.
