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05/22/2017, 08:59 PM
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Registered Member
Join Date: Jan 2016
Posts: 167
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New apex ph prob reading accuracy ques
Ph was 8.04 with old probe i installed a new prob and after calibration it showed dead on 10.0 while it was still in the 10 ph solution. When i put it in the tank it shows 8.20....my salifert shows approx 8.10....what should i believe??
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