Problem Solving with the Zodiac pH Regulator: How to Test and Replace the Probe

Client:
Hello, I have a Zodiac pH regulator (PH Expert ref. W500708 equipped with a Zodiac pH probe ref. R0819800). I am able to calibrate it for pH7 but not for pH4. I think the probe has a problem. Could you please tell me which probe could replace the existing one based on the information provided? Thank you.

Technical Advisor:
Hello, yes, it's probably the probe. You can test it like this: https://ph-redox-pool.com/gb/content/16-ma-sonde-ph-est-elle-hors-service-. Send me a photo of your current probe, no need to dismantle it, I will check. The replacement probe will be this one: https://ph-redox-pool.com/gb/zodiac/3115-ph-probes-for-zodiac--r0819800.html.

Client:
Great, I will proceed with the test tonight. Unfortunately, I don't have a photo. Do you know if you have the replacement probe in stock?

Technical Advisor:
No need, as you have provided me with the probe reference. Yes, it is in stock. Here is the link: https://ph-redox-pool.com/gb/zodiac/3115-ph-probes-for-zodiac--r0819800.html.

Client:
Thank you very much.

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