Tips for solving pH probe problems in your pool.

Client:
Hello, what is the length of the cable?

Technical Advisor:
Hello, the cable measures 5m.

Client:
The probe I currently have has a quality index of 75 (so presumably good), but the pH level does not change when I add PH- (it fluctuates between 6.8 and 7.0). Is it broken or does it need cleaning? The pH level checked by a pool specialist is 7.4.

Technical Advisor:
Do this test: https://ph-redox-pool.com/gb/content/16-ma-sonde-ph-est-elle-hors-service-

Client:
Do I need to add white vinegar or wine?

Technical Advisor:
It doesn't matter.

Client:
Okay, thank you. I will do the test and let you know tomorrow. Have a great day.

Technical Advisor:
You're welcome. Feel free to contact us again! Have a great day.