waterproof808
Well-Known Member
That’s interesting. The bluelab manual specifically mentions not to soak or store the ph pen in RO, Distillied or De-Ionized water because it causes the water in the reference bulb to change chemistry and kills the probe.when i first got my Milwaukee, i contacted them to ask about the best way to store the probe. tech support said rinse off in white vinegar and store in distilled. same probe from about 8 years ago. still accurate as hell.