Unusual Fluctuation of pH in Pool: Investigation on a Probe Issue

Client:
Hello. I purchased a probe with my order TXVZWEOXV. Have you ever encountered a case where the pH reading of the probe fluctuates between 1, 7.5, and 8.7? Do you know why this is happening?

Technical Advisor:
We will look into this for you. Could you provide us with more details about the probe you are using?

Client:
The issue is that the pH regulator emptied a container of pH- into the pool, and since then, it has been impossible to raise the pH. The probe seems to be experiencing a faulty connection.

Technical Advisor:
I understand. It appears that there is a problem with the probe. We will investigate this and get back to you with a solution.