It’s in your best interest to keep the pH probe in good condition so the Grobo can do its job correctly.
Here is how to care for your pH probe:
- Calibrate In Between Grows - Your pH probe must be calibrated in between grows to ensure it can operate within recipe range. Click HERE for calibration best practices and written instructions. See HERE for a video of this process.
- Keep it Submerged - Make sure its always submerged in water. If have an empty reservoir for more than 24 hours, ensure you keep it in the cap it comes with that's filled with solution or tap water. If you find your pH probe has been dry for more than 24 hours, you'll have to purchase a new one.
- Store it Correctly - If you’ve lost the liquid that comes in the cap, you can use electrode storage solution (available at your local hydroponics store) or tap water in a pinch to keep it wet.
Still have questions? Please see HERE for how to contact us.