Ouch, shocked !!

[mark]

Sounds like something is leaking in the tank, the tank is not ground and you're providing the path to ground (your lights).

Always been doubtful of just sticking in meter probes for accuracy but would have more confindence if grounding the tank, setting up a GFI powerbar and plugging in the devices one after another until they trip.

[Doug]

Originally Posted by mark

Sounds like something is leaking in the tank, the tank is not ground and you're providing the path to ground (your lights).

Exactly my thoughts also Mark.