That sounds like the most logical theory so far. A LFS I was at yesterday had a sign by their livestock tanks, with a few little lightning bolt "shock" symbols, and "do you have a ground probe?" as a reminder to not forget this potential lifesaver.reefrash said:Electricty? One person attempting to save another... zap...
Then again, if your theory is correct (one person getting zapped, the other gets zapped touching the first person), I suppose that would mean that, in addition to not having a ground probe, the tank was not plugged into a GFCI outlet.
--Mike