HappyDaze you should back off on many of your assumptions such as my politics. You could easily have furnished the simple description of what occurs when "STORING" a pH pen in distilled or deionized water as is found here at this chemistry forum. https://www.chemicalforums.com/index.php?topic=50263.0 I soaked, and it removed whatever residue was on the glass electrode.
Many years ago when using what are the yellow now $10.00 pH pens (I think I paid $7.00 then) I asked this same question https://www.rollitup.org/t/using-dis...-meter.229779/ This led me to the method of soaking the pens when readings became erratic. My pens are working fine, and reading right on. I asked my plants, and they are loving their pHd water, and nutrients.
Many years ago when using what are the yellow now $10.00 pH pens (I think I paid $7.00 then) I asked this same question https://www.rollitup.org/t/using-dis...-meter.229779/ This led me to the method of soaking the pens when readings became erratic. My pens are working fine, and reading right on. I asked my plants, and they are loving their pHd water, and nutrients.
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