pH measurements

The pH measurement indicates the pH level in your pool or spa. Variations in pH readings can be normal: they can fluctuate depending on the weather or swimming. ICO can detect changes between two consecutive measurements. On this page, we explain the possible causes of variations in pH readings.

View pH measurement trends

On your ICO application, you can find pH trends by clicking on the trend icon.

If action is required on your part, ICO will send you a recommendation.

Possible pH measurement anomalies

1. Your pH measurement peaks at around 8: we recommend that you measure the alkalinity of your pool or spa. A high TAC will cause the pH value to stabilise at a high level.
2. Your pH measurement fluctuates: we advise you to measure the alkalinity of your pool or SPA. A low TAC will cause the pH measurement to become unstable.
3. Your pH sensor may no longer be calibrated we invite you to carry out a mineral water test. You can find the procedure by clicking here. hereand then contact our helpdesk
4. You think your pH measurement is wrong : we invite you to carry out a mineral water test. You can find out how by clicking here then contact our helpdesk