Originally Posted by Raul-7
Aren't pH controllers a pain to maintain...with all that buffer, and probe changing?
So far I have yet to have any problems. I never had one before so I basically went with what people told me. Buffering is fairly easy. Take probe, dip it in 4 and 7 solution and calibrate (screw on the back and front). This process takes few minutes. Some people have their probes for a long period of time and report no need for calibration.
Probe changing ?
Don't know about that.