Autopot ph in tray differes alot to the rez ?

Hi, don't really pay attention to the PH in the tray. Pay attention only to the PH in the tank. How else are things going with the autopot and how do you feed? I used biotabs but had to go back to hand watering (see diary)

The only thing I can think of is a salt build up in your trays that's causing your ph to rise. Hope this helps.

scusate sono italiano e ignorante e non so tradurre rez se qualcuno mi spiega mi farebbe un piacere grazie cmq la fluttuazione del ph dipende anche dall quantita' d'acqua e come viene riutilizzata

I have the same issue in my system as well there seem to always a discrepancy between the to but I don't seem to have any adverse effects not really sure why this is but it happens...