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Old 01-07-2010, 12:56 AM   #1
tkone
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Default best way to ground?

so i finally got the holes drilled and the element wired and capped off and sealed and i know i need to ground it to the pot, but what's the best way to do this?

ideally i'd like to be able to still remove the element easily but am up for anything. was thinking just to jb weld it to the side, but i thought that might look a little ugly.

should i just drill another hole and use some stainless steel machine screws and very small o-rings?

here's a pic if you want something visual. i still need to sand down the excess jb weld. maybe. or i just want to start a-brewin'



oh, and awesomely? no leaks. not a single flippin' drip out of any of the ports. and the copper dip tube just arrived...

i might even be able to break this bad boy in this weekend.

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Old 01-07-2010, 01:14 AM   #2
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Yea, I guess you have no choice but to use a small machine screw and an O-rig. A couple washers.

Looks like you have a pot and not a keg, right?

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Old 01-07-2010, 01:16 AM   #3
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Kind of. I asked where to ground, now I want to know the best way to actually attach it.

I've been searching the forum for pictures but I cant' see a decent shot. I could JB Weld it (which would be the easiest) but I'd like something a little more elegant.

Hence the forum. Where you're all a bunch of classy m'fers.

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On tap:
You Porter, You Dug 'er Up (Munich/Crystal version)
Todd's Special Bitter
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Fermenting:
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Shortwrench IPA (Longhammer Clone)

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Old 01-07-2010, 01:19 AM   #4
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Quote:
Originally Posted by tkone View Post
Kind of. I asked where to ground, now I want to know the best way to actually attach it.

I've been searching the forum for pictures but I cant' see a decent shot. I could JB Weld it (which would be the easiest) but I'd like something a little more elegant.

Hence the forum. Where you're all a bunch of classy m'fers.
Longer ground wire and to the handle.
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Old 01-07-2010, 01:22 AM   #5
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Quote:
Originally Posted by tkone View Post
Kind of. I asked where to ground, now I want to know the best way to actually attach it.

I've been searching the forum for pictures but I cant' see a decent shot. I could JB Weld it (which would be the easiest) but I'd like something a little more elegant.

Hence the forum. Where you're all a bunch of classy m'fers.

JB weld is not conductive right?
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Old 01-07-2010, 01:25 AM   #6
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If its is feasible, how about welding a nut to it so you can put a screw to that connector instead of just welding that wire permanently!

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Old 01-07-2010, 01:29 AM   #7
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direct from jb welds site.

Q: Will J-B Weld conduct electricity?
A: No. J-B Weld is not considered to be a conductor. It is an insulator.


http://www.jbweld.net/faq.php#faq009


If you use jb weld to secure either the wire or a screw/bolt you will not get a ground connection.

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Old 01-07-2010, 01:34 AM   #8
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Personally, I wouldn't be comforable using JB Weld to glue the ground to the kettle.

I am using an outdoor electrical box instead of the epoxy method so I will have a ground stud.

I saw someone on HBT took a sheet of copper and put a hole in it and then sandwiched it between the kettle and the element like a washer. They left a "tab" of copper and soldered their ground it.

Good luck.

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Old 01-07-2010, 01:42 AM   #9
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I have no experience with grounding a kettle but I do have some experience with grounding electrical devices...

Wouldnt grounding the element to the kettle do nothing if the kettle was not also grounded? I would ground them both (element and kettle) to a ground bus that is tied in with your ground for your power source...

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Old 01-07-2010, 02:26 AM   #10
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I have no experience with grounding a kettle but I do have some experience with grounding electrical devices...

Wouldnt grounding the element to the kettle do nothing if the kettle was not also grounded? I would ground them both (element and kettle) to a ground bus that is tied in with your ground for your power source...
If the insulator on the element itself some how cracks or exposes the conductor in the element to the wort, the pot will be exposed to voltage. With out it being grounded it will float until something or some one touches it. If the kettle was grounded it would pop a breaker or gfci because the current has an alternate path.

A couple of options. You could drill and tap the base of the element on the outside to insert a ground screw. It would have to be pretty shallow and probably not the best way to do it, better than JB weld though.

You could do the copper tab as suggested earlier.

Drill a hole toward the upper lip of the pot and run a stainless bolt through there with an O-ring. I wouldn't put it right above the element though. If you do it at the bottom you have to get a seal good enough to resist the head pressure of the liquid in the pot.

Best option would be to weld or braze a flat head screw face down onto the pot, giving you a mounting point.
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