Heavy rainfall or intensive watering can wash away the soil around Terra and expose the soil rods. Exposed rods mean the sensor no longer has full contact with the soil – and can no longer deliver reliable readings.
What to check
After heavy rain or an intensive watering session, take a quick look:
Are the soil rods sticking out of the ground? If so, Terra is no longer sitting deep enough.
Has the soil around Terra subsided or washed away? If so, direct contact between the sensor and the substrate has been lost.
How to fix it
Press Terra deeper into the soil. If the sensor is still upright but sitting too high, press it gently and evenly further into the ground. Important: use only light pressure and never force it. If you feel resistance and the sensor won't go any deeper, move straight to step 2 – otherwise you risk bending or breaking the soil rods.
Build the soil back up around Terra. If soil has washed away, refill it and press it lightly around the sensor to restore contact with the substrate.
Water again if needed. If you have added a larger amount of soil, water the area moderately so the soil settles and contact with the sensor is optimised.
Why does this matter?
Terra always measures locally – right where it sits. Exposed rods or air pockets in the soil distort readings for soil moisture and nutrients. A quick visual check after heavy rainfall or intensive watering ensures your data stays reliable.