grounding probe is tripping gfci

[tlc]

I recently purchased a used tank. it never had a grounding probe nor was it connected to a gfci by its previous owner. I added a gfci and the tank runs fine but when I plug the grounding probe in the gfci trips every time. any thoughts ?

 

[BrandonFlorida]

That means you have stray voltage somewhere in the tank, like a pump or powerhead or heater. Plug them in one at a time and then you will find the source..

 

[kmbyrnes]

Do not try this barefoot!

 

[tlc]

thanks for the advise. turned out one of the pumps on the wave maker was the culprit. this tank was set up for over a year in my partners office before I purchased it from him with no gfci or grounding probe. luckily he never got zapped..

 

[BrandonFlorida]

thanks for the advise. turned out one of the pumps on the wave maker was the culprit. this tank was set up for over a year in my partners office before I purchased it from him with no gfci or grounding probe. luckily he never got zapped..

good deal. It was probably a DC pump.. Glad everything worked out ..