Dabbling in Oil
Do water contitioners change the EC readings taken by meters?Well, there's H in H2O. ..
By definition, "In chemistry, pH (/piːˈeɪtʃ/) is a numeric scale used to specify the acidity or basicity of an aqueous solution. It is approximately the negative of the logarithm to base 10 of the molar concentration, measured in units of moles per liter, of hydrogen ions. More precisely it is the negative of the logarithm to base 10 of the activity of the hydrogen ion."
Deionized or R/O water is acidic in nature. There's indeed something in R/O water...and the meter picking up a low-pH reading is spot-on.