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Driving all thread into the ground? #4449479
07/04/17 02:47 PM
07/04/17 02:47 PM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline OP
Global Moderator
JHZR2  Offline OP
Global Moderator

Joined: Dec 2002
Posts: 42,625
New Jersey
Say 4'?

Need to have some threads in the ground, and shear is more the concern than pulling out. I have a rotary hammer with sds plus connector, and have seen some ground rod hammer adaptors for that.

Is it doable? What would my concerns be? Id use threaded rod of 1/2 or 5/8" size, and could grind a point into the end of it if that somehow helps. I could also cut the hammered section (leave it a little long) and chase the threads.

The other option might be to drive a ground rod and then use a die to cut threads.

Thoughts/recommendations?

Re: Driving all thread into the ground? [Re: JHZR2] #4449496
07/04/17 03:02 PM
07/04/17 03:02 PM
Joined: Aug 2010
Posts: 6,231
Champlain/Hudson Valley
Kira Offline
Kira  Offline

Joined: Aug 2010
Posts: 6,231
Champlain/Hudson Valley
All for electric grounding? How deep is code? I've done it a couple of times with a hammer (lucky, I guess) but someone else was in charge.

Re: Driving all thread into the ground? [Re: JHZR2] #4449503
07/04/17 03:15 PM
07/04/17 03:15 PM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline OP
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JHZR2  Offline OP
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Joined: Dec 2002
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New Jersey
No. Nothing to do with electrical grounding at all. A ground rod is just an option to get a piece of metal intended for driving in the ground.

Re: Driving all thread into the ground? [Re: JHZR2] #4449578
07/04/17 04:29 PM
07/04/17 04:29 PM
Joined: Dec 2016
Posts: 45
Lemont IL
Fattylocks Offline
Fattylocks  Offline

Joined: Dec 2016
Posts: 45
Lemont IL
How hard is the ground and how deep do you have to drive the rod in?


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Re: Driving all thread into the ground? [Re: JHZR2] #4449586
07/04/17 04:39 PM
07/04/17 04:39 PM
Joined: Dec 2016
Posts: 279
Sav ga
NStuart Offline
NStuart  Offline

Joined: Dec 2016
Posts: 279
Sav ga
Double nut it, beat on it, unscrew....threads should be fine


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Re: Driving all thread into the ground? [Re: JHZR2] #4449615
07/04/17 05:11 PM
07/04/17 05:11 PM
Joined: Jul 2007
Posts: 4,457
Midwest USA
LoneRanger Offline
LoneRanger  Offline

Joined: Jul 2007
Posts: 4,457
Midwest USA
I thought this was going to be about trolls killing valid discussion threads on the forum . . .



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Re: Driving all thread into the ground? [Re: JHZR2] #4449687
07/04/17 06:01 PM
07/04/17 06:01 PM
Joined: Aug 2003
Posts: 11,231
Buffalo, NY
JTK Offline
JTK  Offline

Joined: Aug 2003
Posts: 11,231
Buffalo, NY
It's going to corrode and deteriorate over time obviously, but should be fine for a long time provided you can get where you need it.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Driving all thread into the ground? [Re: LoneRanger] #4449691
07/04/17 06:06 PM
07/04/17 06:06 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline

Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: LoneRanger
I thought this was going to be about trolls killing valid discussion threads on the forum . . .


I thought it was going to be about threads that have lasted way past their useful life.

Re: Driving all thread into the ground? [Re: Fattylocks] #4449848
07/04/17 08:37 PM
07/04/17 08:37 PM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline OP
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JHZR2  Offline OP
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Joined: Dec 2002
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New Jersey
Originally Posted By: Fattylocks
How hard is the ground and how deep do you have to drive the rod in?


We have sandy-organic mix. Drains well.

Im thinking 4-ish feet down. Shouldn't hit water table until we go 10 feet based upon where water sits in the sump hole in my basement.

Re: Driving all thread into the ground? [Re: JHZR2] #4449910
07/04/17 09:54 PM
07/04/17 09:54 PM
Joined: Jun 2003
Posts: 5,978
Illinois
SHOZ Offline
SHOZ  Offline

Joined: Jun 2003
Posts: 5,978
Illinois
It will pull out rather easy if it's under a load. I've used 3/8" x 4' before and removed it every fall for a greenhouse. If left to rust up it then holds very well.

You could slip the top foot with some PCV pipe to help with lateral pull.


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Re: Driving all thread into the ground? [Re: JHZR2] #4450090
07/05/17 06:47 AM
07/05/17 06:47 AM
Joined: Dec 2002
Posts: 42,625
New Jersey
JHZR2 Offline OP
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JHZR2  Offline OP
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New Jersey
So you drive it with a hammer? 3/8 is a good deal smaller than the 1/2 I'm considering.

Longevity is less of a concern than feasibility.

Re: Driving all thread into the ground? [Re: JHZR2] #4450104
07/05/17 07:14 AM
07/05/17 07:14 AM
Joined: Nov 2008
Posts: 13,156
NH
supton Online content
supton  Online Content

Joined: Nov 2008
Posts: 13,156
NH
Since it's shear you are worried about and not tension I'd think about using a GND rod, and then adding the clamps that are used to attach solid core wire. They have threads for a screw on them, although you could perhaps tap the clamp or building something from those. Use multiple clamps if necessary.

I think you can get 4 foot rods also.


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Re: Driving all thread into the ground? [Re: JHZR2] #4450107
07/05/17 07:18 AM
07/05/17 07:18 AM
Joined: Jun 2003
Posts: 5,978
Illinois
SHOZ Offline
SHOZ  Offline

Joined: Jun 2003
Posts: 5,978
Illinois
Originally Posted By: JHZR2
So you drive it with a hammer? 3/8 is a good deal smaller than the 1/2 I'm considering.

Longevity is less of a concern than feasibility.
Yes I put a nut on top and pound it in. Usually very easy when the soil is wet. I've used a hammer drill before with dryer soil. And put a point on the end of the all thread.


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Re: Driving all thread into the ground? [Re: JHZR2] #4450118
07/05/17 07:35 AM
07/05/17 07:35 AM
Joined: Jun 2002
Posts: 6,610
MI
doitmyself Offline
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MI
Originally Posted By: JHZR2
So you drive it with a hammer? 3/8 is a good deal smaller than the 1/2 I'm considering.

Longevity is less of a concern than feasibility.


We use T post fence pounders to install 8 ft.electric fence ground rods. For 3/8", maybe put a pvc pipe sleeve over it to reduce side bending and just cut off the pvc one ft. at a time as you proceed.

Re: Driving all thread into the ground? [Re: JHZR2] #4450134
07/05/17 08:02 AM
07/05/17 08:02 AM
Joined: Jun 2003
Posts: 5,978
Illinois
SHOZ Offline
SHOZ  Offline

Joined: Jun 2003
Posts: 5,978
Illinois
I just used a post driver like that to put a 8' x 1/2" ground rod in a couple weeks ago. The soil was not really wet and I had to use a #3 hammer to finish it.


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