Just bought a used Apex. Probes will need to be recalibrated as they are dry now. What solutions will work?
Thanks
Thanks
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No; don't bother. Put it in the tank and ignore it for a week or two. Then you can start paying slight attention to it; but only as a reference against itself. If it looks like it's doing something not-normal, then look for signs of why that might be. Not-normal is defined by what is normal for your tank - not anyone else's.Does the ORP need calibration as well?
Are you looking to factory-reset the Apex? This will wipe everything and restore the Apex head unit (and thus everything connected to it) back to like-new configurations. Then you can follow through the Getting Started Guide and go forward from there. Unless you are buying a complete system (tank, pumps, lights, Apex, etc.) and the original owner is offering to maintain it (is that even a thing?), this is what I would suggest you do. To do this, hold the "reset" button (using a pin or the like) for 20sec (until the lights go to Orange -> Green -> Orange -> Blue).Also how do I change the account ownership?

