Uploaded July 2026 | Updated September 2026, 1 day ago

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When using RO water, there are very few dissolved minerals to help buffer pH. That means even small additions of pH adjusters can cause larger-than-expected swings, making accurate measurements especially important.

As @everestf puts it: "Still loving the quick reaction times and accuracy of this meter!" The Bluelab OnePen helps make fine pH adjustments easier, especially when working with sensitive RO water.

Thanks for sharing this great example of pH management in action. 👊

📸 Reposted from @everestf

#Bluelab #BluelabOnePen #pHManagement #ROWater #Hydroponics @Just4Growers