testing for stray voltage

[heliguy71]

hi when i test for stray voltage on a digital voltmeter i set the dial to v~ correct and put the black to a grounded outlet and red to the tank water.my question is what reading should i get on the meter my reading i know salt water conducts electricity but what should it be reading.my readings are all over.everything is fine in the tank just curious.

thanks mike

 

[2FarNorth]

Correct, you stick the black in the Ground of the outlet... red to tank...

If your getting a reading, shut off stuff to see whats causing it...

My 90g gets a reading of less then 1 volt.... my 120g SPS tank was reading over 37 volts, come to find out my bad Sicce pump is leaking voltage in the tank... (my fault not Sicce!!)