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- Apr 28, 2015
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I just dosed 1 mL of hydrogen peroxide (3%) / 30 gal for the first time and the ORP went from 330 to 245. I was expecting it to go up... I have a ORP probe from Neptune Apex and apparently works ok, decreasing as pH increases during the day and increasing as pH decreases at night.
Any known reason for the drop after dosing hydrogen peroxide?
Any known reason for the drop after dosing hydrogen peroxide?