Thread: Determining if a pH probe needs to be replaced
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Old 03-29-2018, 04:44 AM
byee byee is offline
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Default Determining if a pH probe needs to be replaced
I've got a Apex setup with a pH probe and just wondering how to tell when a pH probe needs to be replaced?

What are the signs?

Is it normal for the pH to change throughout the day?

What is an acceptable range?

Thank you!
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