inovum logo
INOVUM SRL +40 771 476 768
Back to top


  /  Blogs   /  How to accurately measure the water level in boreholes or wells

How to accurately measure the water level in boreholes or wells

The drilling process is a complex one and differs depending on the utility of the borehole, it can be used for the purpose of creating a drinking water network for consumption or for domestic use (irrigation, car washing, etc..) due to the fact that it can fulfil several functionalities, the borehole has several dimensions (diameter/depth, length of filters) for each need and more importantly depending on the area.

To accurately determine the water level for any type of utility, we need only one instrument, a level meter.

Why it is so important to measure water levels regularly

It is important to regularly check the water level in your well because this will allow you to identify and diagnose a serious problem as long before it causes problems, such as water breaks or pump damage in addition to that state drinking water rules require checks to maintain statistical records about well water levels on a seasonal basis, including periods when it is lower or higher.

The right time to measure water levels  

At the time of year when water use is highest, weekly measurement is required and at least monthly during the rest of the year.

If these measurements are made correctly and accurately using the level gauge, data can be collected over time and will reveal the patterns of water level change within the well.

Water level gauge

It consists of a drum supported by two plastic plates resistant to shock, abrasion and/or dirt. Except for the electronic compartment located in the drum axis, the rest of the construction is waterproof. Three C-type batteries are inserted in the electronic compartment. Opposite the batteries, at the end with the release/training/recovery handle is the indicator light. 

On contact with water the indicator light comes on, and if equipped with an acoustic sensor, the device will emit a beep. 

Operating mode  

To release the drum, loosen the retaining rosette located on the opposite side of the handle below the battery shaft. 

Release the probe into the well until the signal light comes on. 

Lock the reel and read the depth on the scale at the scale entry to the well. 

If the apparatus is equipped with a bottom probe, after reading the water level, continue to release the probe into the well until the light goes out.


The new depth is read off the scale.

Using the handle, roll back the scale drum.

For transport, the probe is inserted into the special slot at the side of the apparatus.