I'm not chasing my water's pH. I'm trying to determine if my meter is properly reporting *ANY* pH properly. If my meter can't tell me the pH of my water then it can't tell me the pH of my mash. What I want to do is get my strike water to a pH of 5.5 and I can't know if its 5.5 if my meter seems dodgy.
When I calibrate my pH meter (Milwaukee SM-102). I get 7.01 and 4.01.
How old is the probe in the meter? My guess is if it calibrates properly, the probe is OK. If it takes a while to read one of the buffer solutions or stops calibrating, it's a time for a replacement probe.
FYI to the group, I always check my sparge water and add acid to get between 5.2 and 5.6. I need to know where it starts so I don't overshoot. Granted the untreated water sometimes takes a while to get a stable reading, but I usually get there.
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