Tickle When Touching Submersible Pump with Power Off

[luv2bike]

Hi,

I have a submersible pump that I use to pump lake water. Was changing a coupling at the pump recently and noticed I was getting a tingle when I touched the pump. Power shut off.
I metered the pump and all resistance values are excellent and there are no grounds. It's a 3 wire pump.
Only odd thing I found was that it did show a small voltage (3v) between all three leads and ground. I don't know enough to know if that is normal or not. As I said, all power was shut off.
Can anyone help with the source and cure for the tingle?

Thanks!

 

[Twowaxhack]

Replace the pump before you get killed.

 

[BlueSkyHigh]

The fact that you measure voltage with the power turned off is, of course, concerning. I am assuming the breaker only disconnects the "hot" side of the circuit. Could the circuit breaker be leaking? There may be problems with your neutral circuit as well.