Does anyone know why the pH in the measurement cell of the KH director never reaches the pH of the tank when starting an alk test? My tank pH is typically 8.3, but the highest pH in the measurement cell at the start of the titration is 7.8.
Both the tank pH probe and the KH director pH probe are calibrated and show similar results.
Both the tank pH probe and the KH director pH probe are calibrated and show similar results.