Quote:
Originally Posted by brownrexx
Those store bought pH meters are not going to be accurate, no matter which brand that you buy.
I worked in a chemistry laboratory for 20 years and our pH meter was calibrated twice a day with standard solutions to ensure accuracy.
I would not waste my money on the store bought kind. Send a sample to a laboratory.
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He's perfectly right. If you want a pH value read properly, a laboratory is your answer. (I'm a Biochemical Engineer)