Problems encountered with the CHLORE and PH probes: Technical assistance in action.

Hello, I'm sorry to come back to you but the purchased probes are not up to our expectations.

Indeed, the CHLORINE probe has been displaying 9.9 for over 3 days, is this normal?

The new pH probe was working, but for the past few days the pH has dropped to 4.2. We currently have bad weather and storms, but I think this is definitely the cause of the malfunction.

Okay, that works.