Client: 
 Hello, I have already purchased a REDOX probe from you. I would like to test my PH probe, how do I do it? You told me before, but I misplaced my notes...
Technical Advisor: 
 Hello, one moment 
Technical Advisor: 
 https://ph-redox-pool.com/gb/content/16-ma-sonde-ph-est-elle-hors-service-
Client: 
 This is Mr. MICHAUD, good day! and thank you!
Technical Advisor: 
 Good luck with the test 
Client: 
 After adding vinegar, should the PH increase?
Technical Advisor: 
 It should decrease 
Client: 
 Ok, thank you... I think I will be placing an order with you soon....
Technical Advisor: 
 Maybe not...
Client: 
 "The saga continues"... after ten years... I just replaced my cell, I went with an adaptable one, following your advice ...
Technical Advisor: 
 Sometimes