I've been trying to adjust the Hi/Lo settings on my new Pinpoint PH controller with no success. The instructions literally suck, I've been checking out other posts on the internet and it seems a lot of people are experiencing the same frustration. I had no problem calibrating it. Does anyone have one of these and can you explain the set up to me?
The controller s giving a PH reading of 2.84, and my API test kit gives a reading of 6.0????