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#1
07-28-2008, 10:21 PM
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The purpose for using a ground rod is to diminish potential difference. For example if a heater leaks or fails, there will be a potential difference bewteen the piece of equipment and ground. When using the grounding rods or plates supplied by the supply ( the ground rods at the power supply to the house or to the local utility transformer) it is often located far enough away from the tank. This is the leakage that we feel, If we use a grounding probe at the tank we diminsh the effect of the leakage, the effect diminishes or increases with distance.
This is as simple as I can state it. If you don't want to use one don't This is just my opinion, with years of designing electrical distribution, from everything from watertreatment plants to multifamily dwelling. You might get away with it once or maybe a thousand times, but I am of the belief that price might be to high to take that chance. The rest I leave up to you.
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180 gallon SPS Dominated reef, Reeflo Orca 200 skimmer,Proline Zeovit reactor,3 250 watt halides in lumenarc mini reflectors and 2 vortecs for flow Numerous corals,2 purple tangs,choclate mimic tang,Foxface,Solar wrasse,male and female lubbocks wrasse,hoevens wrasse,Carpenter's Flasher Wrasse,Blue Sided Fairy Wrasse,yellow wrasse,3 Yellowstripe Anthias,True percand S.Gigantea anemone 
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#2
07-28-2008, 11:06 PM
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Quote:
 I'm sorry, I really did kinda laugh when I got to this part. It was the only sentence I understood!!!  I guess then it's just a question of sometimes these things trip GFCI's, and sometimes they don't ... and you'd have to be an electrician or engineer to understand the difference The only reason I started this thread is, I've been letting my 3 year old dump his tank in the tank to feed the fish. I give him flake or pellets, if he doesn't stick his hand into the water then the fish food mostly sticks to his hands and it's just easier to shake it off and let the fish eat the food that comes off. He loves it, the fish love it, he loves that the fish love it and it makes me happy to see him happy - it's just one of those "parenting" moments I guess. .... I'd just hate to think I'm subjecting him to risk by letting him do this ... One day I'm might forget to stick my finger in the water first to make sure there's no zap zap.. In all my years of reefing though I've only had leakages twice (and this is one of them). The other one was a failed pump as well... I still just find it odd that the GFCI didn't trip. I'd ask for an explanation but I'm starting to really feel dumb and inadequate here... Uh .. I work in software. 
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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#3
07-28-2008, 11:25 PM
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We also get reports on CSA testing and GFCI tested 91% operated properly, not testing by hitting the test and reset button. Testing them by simulating examples.
Where are the manufacturers sending the other 9%?
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180 gallon SPS Dominated reef, Reeflo Orca 200 skimmer,Proline Zeovit reactor,3 250 watt halides in lumenarc mini reflectors and 2 vortecs for flow Numerous corals,2 purple tangs,choclate mimic tang,Foxface,Solar wrasse,male and female lubbocks wrasse,hoevens wrasse,Carpenter's Flasher Wrasse,Blue Sided Fairy Wrasse,yellow wrasse,3 Yellowstripe Anthias,True percand S.Gigantea anemone
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