RE: Automated Green House Blog:13.9 - PH Probe Revival: Ultrasonic Cleaning

DAB — Mon, 07 Dec 2015 20:10:50 GMT

Nice update.

As I understand the probe description, the solutions inside the probe establish an ionization potential between the tested solution.

This ionization potential can cause crystals to form in and around the probe, insulating it from the tested solution.

The manufacturers claim that each time you use the probe, you need to thoroughly clean the tip with deionized and distilled water.

Please note, deionized water is different from your run of the mill distilled water. They use a special filter that removes any ions that tend to collect in the water from contact with charged substances.

The recommended ultrasonic cleaning is intended to disrupt the crystals, which should then react with the deionized water for removal.

Hopefully my research into atomic structures and chemical compounds will enable me to better understand how the probe works and perhaps suggest simpler methods for measuring Ph.

Until then, you are stuck with what you can buy.

So make sure clean your probes with every use or they will quickly degrade.

DAB