- Joined
- Sep 12, 2019
- Messages
- 785
- Reaction score
- 517
I have been getting my tank set up and with that was setting up my Apex EL for the first time. However, my PH probe isn’t working correctly. It currently states by PH is about 3.88. I tried to calibrate it and the automatic calibration fails. The manual calibration also fails without getting any different readings when placing it in the 7.0 vs 10.0 solutions. Any ideas?