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The pH on my alkatronic is always a couple tenths lower than my apex. I always attributed that to calibrating to the 4 and 7 solutions vs the 7 and 10 with the apex. But I don’t know. I also notice that when I get a black dot on the alkatronic and a retest, the second pH measures even lower by a few tenths. @Hydrored do you see that also?@mitch91175
Question- Still using the Alkatronic along with the Trident. One thing I can’t figure out is the test are bang on from the alkatronic (7.82) and Hanna (7.8) and Trident is always .30 lower. Anyways the PH is always showing much lower than it actually is but it tests alk perfect, I checked the probe calibration and it was .04 off but that is nothing. I re did the calibration and I’m not surprised nothing really changed since it was barely off anyways.
I have 2 PH probes on the apex and just calibrated them both- probe 1 measures 8.24, probe 2 8.25, Alkatronic 7.98 for the tank
Not sure why the large ph gap but the alkalinity is testing accurate and so is the probe in calibration fluid. I’m not sure it’s worth chasing but was wondering if anyone else sees the same?