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- Jan 10, 2020
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Just got a hanna hi98107 ph tester. Soaked it in rodi for an hour, did the calibration using the supplied sachets, 2 point calibration, then got about testing it.
My tank tests at 8.0 consistently, but i can't get consistent results when i dunk it back into pure rodi... It goes all the way from 6 to 9ish...
Anyone notice anything similar? It's almost rodi is too "pure" for it to ... "sense" anything? How do they work anyway?
My tank tests at 8.0 consistently, but i can't get consistent results when i dunk it back into pure rodi... It goes all the way from 6 to 9ish...
Anyone notice anything similar? It's almost rodi is too "pure" for it to ... "sense" anything? How do they work anyway?