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- Mar 27, 2017
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I bought My APEX 7 month ago. I want to know if I need to recalibrate my PH Probe and how often?
Thank you in Advance
Thank you in Advance
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Thank you!I calibrate my probe after every cleaning - which I find is needed every 2 months or so. That may be more often than needed, but the calibration solutions are cheap (~$4 for one set?) and the cost of the probe being out-of-calibration is too high.