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      Troubleshoot a flatlining soil moisture probe

      Here are common causes for a soil moisture probe that's unresponsive to irrigation events, and typical fixes to resolve this issue.

      The available water content graph in this example is not responding to the reported irrigation events

      Example of a flatlining soil moisture probe

      Water is not reaching the soil moisture probe

      The movement of drip lines, interference from laborers or equipment, or blockage caused by branches can prevent water from reaching the soil moisture probe.

      To resolve this issue:

      • Do a quick inspection to ensure that everything is in line. The probe should be within 4-6 inches of where the water enters the ground.
      • Adjust the drip line or remove any obstructions to restore the proper functioning of the soil moisture probe.

      Insufficient irrigation

      If everything appears to be in order in the field, inadequate irrigation may cause a flat line.

      Some soils require a significant amount of water to register a change in soil moisture, particularly if they are extremely dry. Keep in mind that the shallowest sensor that we typically display is 6 inches below the ground. If the applied water doesn't reach that depth, it will not be reflected in the data.

      To resolve this issue:

      • Apply a greater amount of water to help stimulate movement in the soil moisture readings.
      • You can reach out to your Semios Customer Success Specialist for help. Our Irrigation Experts can provide guidance in determining the optimal amount of water to apply.

      Short, frequent irrigations

      Short, frequent irrigation events, such as pulse irrigation, can mask the normal downward trends in soil moisture levels that naturally occur throughout the day.

      Distinguishing between these irrigations and an actual flatlined probe can be challenging.

      To resolve this issue:

      • If you are consistently performing pulse irrigations, resulting in stable soil moisture levels day after day, there is no need to take additional action.

      Probe is not close enough to the emitter

      If none of the above matches your situation, the probe may be positioned too far from the emitter, making it difficult to find an immediate fix.

      To resolve this issue:

      • Please reach out to your Semios Customer Success Specialist for assistance. Our team will send someone to assess the placement of the probe and ensure it captures accurate irrigation data in your fields. We are committed to providing the support you need.