Yeow! Stray voltage??

[Delphinus]

A ground probe is a titanium rod (a bicycle spoke works real well for this) that sits in your water. Any stray voltage will thus jump to ground via this probe. So if you have a GFCI, the circuit will thus trip because now there is current on the ground. So this is a great way to test for stray voltage: the GFCI will keep tripping if you have any. Of course, you still have to go through your devices one-by-one to find out which one is leaking...

You will feel real silly asking how to use a voltmeter ... ;) Basically, you will have a meter, a red wire, and a black wire. Set the voltmeter to measure AC, then plug the black wire into ground, put the wire in the water, set the voltmeter to AC (some may have different "ranges" in which case start at the highest range and work downwards). If you get a reading, you have stray voltage.

It's not hard, really, once you see one of these units you'll figure it all out. [img]smile.gif[/img]