The pH electrode should generally be cleaned depending on usage, once a day, once a week or at least once a month to prevent clogging and maintain accuracy. You should always clean it before calibration. Immerse only the glass membrane of the electrode in the cleaning solution for about 10-15 minutes and you are ready for new, accurate measurements.

The pH electrode must be cleaned to prevent build-up of material on the surface of the glass bulb. Build-up of material on the glass tip of the electrode as this causes the calibration of the electrode to be inaccurate and any subsequent readings to be inaccurate.

The pH electrode should generally be cleaned depending on usage, once a day, once a week or at least once a month to prevent clogging and maintain accuracy. You should always clean it before calibration. Immerse only the glass membrane of the electrode in the cleaning solution for about 10-15 minutes and you are ready for new, accurate measurements.