Grounding a hot tub sub panel

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Old 11-27-18, 06:24 PM
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Grounding a hot tub sub panel

i have a hot tub that is hooked up to a gcfi box that goes to a sub panel. I started getting mild shocks from it. I have been told it is a grounding issue so I went out and got a grounding rod, connector and 4 gauge wire. Now, should I ground the main box or the gcfi box? Also, if I ground the main box do I detach the old ground wire? The other problem is the ground wire I got is really thick and is not going to mount to either ground bar...

Any suggestions would be appreciated. I have photos of the boxes but was not sure how to put them in this post.
 

Last edited by HughG; 11-27-18 at 06:25 PM. Reason: Typos
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Old 11-27-18, 06:36 PM
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Welcome to the forums.

Is this a 120/240v hot tub ?
If yes...... you should be using four wires. Two hots, a neutral and an insulated ground.
If you are getting a shock.... something is not wired correctly.
You do not use a ground rod at the tub.

Please post pictures for us........ How-to-insert-pictures
 
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Old 11-27-18, 07:53 PM
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I'd like to see a picture of the spa panel with the GFCI breaker. It sounds as if the feeder neutral and feeder ground are both terminated on the neutral bus. I saw that one time on an inground pool many years ago (mid '70s) when only the pool light was required to be GFCI protected and a slight shock could be felt in the water when the light was turned on. Isolating the neutral from the grounded panel box solved the problem.
 
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