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Showing results for tags 'grounding'.
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While working on the tank, I felt a slight sting in my finger which I took as an electric charge. So I took a multimeter, stuck the red probe in the water and the black probe in the ground/3rd hole of the outlet. Sure enough, I got 30V on the multimeter!! I systematically turned off each electrical item in the tank but the multimeter never dropped to 0. Removing some pumps seems to drop or even increase the current but I'm assuming that they are acting as poor grounding probes when they are off which may explain why I see current dropping when I restore them... In any case, I'm very confused and worried that I may have a dangerous situation. I have a grounding probe which helps but obviously isn't the correction I'm looking for.
