How to Measure Static Water Level in Your Well?

It is very important for a private well user to know about the water level in the well. An idea about the water level in your well helps in enhancing its life by reducing the usage. It also tells you about the position of the water pump in the well so that you can immerse it deeper or lift it upwards so that sediment at the bottom will not enter your water supply.

What is the Static Level?

The static water level is the water level in your well when it has not been pumped for at least 12 hours. It is the water level under normal and undisturbed conditions.

What’s the best time to measure the static level?

The best time to measure the static level in your well is when it has not been used. When you want to measure the water level in your well, make sure you turn off the pump and don’t turn it back on for at least 12 hours. The best time to do it is early in the morning without using a water pump. Turn the pump off in the evening and measure the level the next morning before turning the pump on.

Ways to Measure the Water Level

There are various ways to measure the static water level in your well. Let’s read more about them.

Steel Measuring Tapes

measuring tape for static level

You would need a steel measuring tape for this method. It is best used to measure water levels for shallow wells or deep wells with a depth of maximum of 100 feet. You can use it for deeper wells if you have a longer tape. You must know the depth of your well if you want to use this method. A lead weight is attached to one end of the tape. Almost 10 feet of the tape is dried and coated with class chalk before each measurement.

The tape is then immersed in the water, and the point above the casing is noted down. The tape is then pulled up, and the wet point is noted down. The actual depth is then determined from the top of the casing to the water level by deducting the wet mark (the immersed part of the tape) from the end, held at the top of the casing. The water level is then obtained by looking at the total depth of the water well. The difference in both the measurements will tell about the static water level in the well.

Electric Sounder or Depth Gauges

E-Sounder gauge

An electric sounder is often used to measure the static water level in water levels. It gives very accurate results. You will need to hire the services of a professional well driller for this method. An electric sounder uses a weight attached to an insulated wire. The wire is immersed in your well. When the end of the wire touches the water in your well, the circuit is completed, and the ammeter starts to show a reading.

Once the current starts to flow, the distance is noted on the wire, and it is then taken out from the well. Once the wire is taken out, the distance can be measured with the help of measuring tape.

Air Line Method

An airline device can also be used to measure the static water level in the well. If you are opting for this method, you will most probably need the services of professional well drillers as these devices are not easy to find, and you don’t need them for any other purpose. There is no point in purchasing them. If you want to use this machine, it is best to outsource the work. The airline device has two ways to tell you about the static water level. If the gauge is calibrated in feet, it will tell the exact level of water. If it shows reading in PSI, you can convert the reading to feet using a simple formula.

1 PSI= 2.31 Feet.

Factors Affecting the Water Level in the Well

The following factors affect the level of water in your well

  • Rainfall and drought
  • Water usage
  • Number of people obtaining water from the same underground source
  • Sediment level in your well
  • Well depth
  • Refilling speed
  • Changes in the volume of water
  • Changes in atmospheric pressure
  • Changes caused by the aquifer deformation.

Final Words

Once you know the static water level in your well, it will help you adjust your water usage and move the pump upward/downward. Make sure you sanitize the equipment before using it. If you are hiring a driller for this task, remember to check their operating license. A steel measuring tape is the best way to measure the water level yourself.

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