[Delphinus]

Just out of curiousity, how much do these Beckett pumps go for? The "Quiet Ones" seem to retail for about $160, which is about the cheapest I've ever seen an inline pump retail new.

I think Steve touched on this point a little, but I'm going to mention it anyways. A grounding probe isn't going to solve your voltage leakage problem. It just takes the stray voltage and puts it to ground. If you had a GFCI on your circuit, this would trip the circuit. The only reason you would want a grounding probe and a GFCI in combo is for human safety. The grounding probe causes a ground fault, the GFCI shuts off the circuit. So, it's good and safe for you to put your hand in the tank at any time, but if something were to happen when, say, you were at work or something ... you have a flatlined tank for who knows how long. So, it's not like it's for safety of the tank inhabitants. Well, I guess it is, but what I mean to say is, there is no substitute for components that don't leak voltage. If you have a widget in your tank leaking voltage, then, well, I'm not sure you can fix that. Even if you could repair that pump, I'm not sure you'd really want to. I look at things from the point of view that "sooner or later, anything and everything will fail." So if something is giving me cause for mistrust, well basically I never trust that thing again. Junk it, or maybe use it to mix salt or something, but never again I'd use it for something "mission critical." Not worth the risk.

BTW, you can pick up a voltage meter from Radio Shack for about $10. Not a bad little investment. Every once in a while I'll test my tanks for stray voltage.