ICO: inconsistent measurements, inconsistent/invalid data

On the application, ICO may inform you of ‘inconsistent measurements’ or ‘inconsistent or invalid data’. This means that the latest measurements taken give abnormal results. Here's a more detailed explanation of these messages and how to deal with them.

Inconsistent measures

"Inconsistent measures” notification

When measurements are inconsistent, you will receive this notification. Please click to access the recommendation to find out more.

" Inconsistent measures” recommendation

This recommendation appears when ICO detects a problem that can be linked to two different elements: probe cleanliness or water alkalinity. When you click on the 3 small dots in the top right-hand corner of the recommendation, ICO explains in detail.

Check sensor status

Sensor cleanliness: remove the bottom cover to check that your sensors are clean. If not (presence of greasy film, slight mold, leaf debris, etc.): without unscrewing them from your ICO, clean them very carefully using clear water. You can use your fingers or a soft sponge to lightly scrub if really necessary. Once you've screwed the bottom cover back on, quickly put your ICO back in the water.

Check water alkalinity

It is necessary to check the alkalinity of your pool because a TAC too high or too low may disturb the pH measurements. This can cause measurement inconsistencies (significant oscillations between two measurements). To know the alkalinity of your pool water, you can use strips or get closer to your specialist pool with a sample of water. For a balanced water, the TAC should be between 80 and 150 ml/l. It will advise you on the actions to take to correct the TAC if necessary.

Once the checks have been made, don't forget to click on done to declare the recommendation complete.

Inconsistent or invalid data

This message appears when ICO considers that the measured value may be out of range. For example, a pH below 5 or above 10.
In this case, the colour of the pH measurement is grey and no value is displayed. The Water Index or Bathing Index is also greyed out because it cannot be calculated if one of the indicators is missing.

If the measurements remain inconsistent for several hours, you will receive a notification and associated recommendation inviting you to check several points.
What should you do? Follow the advice linked to this recommendation when you receive it:

• Check that the sensors are in the water, that they are clean and in good condition and that nothing is blocking the measurements (leaves, algae, toys, etc.).
• If the inconsistent measurement is the pH measurement, check the TAC of your pool water. You can check the measurement using test strips or another device. Alkalinity that is too low or too high can interfere with pH measurements (low, unstable pH, difficult to correct, etc.) If necessary, raise the TAC to at least 100ppm.

If the problem persists, contact our helpdesk.