Two, eight foot long 5/8" copper clad steel rods
- plus -
One 1 1/2" Milwaukee rotary hammer drill (no bit)
- equals -
Five minutes total to drive them both through clay and rock
For the last few inches I put an old 6" long 1/2" drive impact
extension in the drill to use as a bit. Worked great.
I can't imagine how cave men drove their ground rods...
True story helped a old friend widen his driveway, till we hit the
ground rod system a couple feet from the house. He reported the
electrician was unable to drive rod closer to home, supposedly metal
trash buried in area. Quite possible since it a old farm house.
I said no problem we will drive new ground rods just behind house.:)
he inssted he wanted to pull and reuse the ground rods and copper
wire. The copper ground wire was aleady beat up from our digging
So I said you pull the rods, and redrive them then I will help finish
That was about 3 years ago the job hasnt progressed at all.
I pounded two ground rods each at 10 feet long according to our Code. We
have heavy hard pan clay starting about the 3 foot level. I had a step
ladder and a 12 pound sledge. They went down the 3 feet easily, but the last
6 feet was murder (I left 1 foot out the ground as we were backfilling about
3 more feet of fill to get final grade). Out of sheer boredom, as it was
taking all day, I measured progress as I counted the hits of the sledge
hammer. I was getting about 30 hits per inch or a 1/32 inch per hit. My arms
were ready to drop off after spending an entire day just to get two ground
rods installed as a had an inspection the next day so that I could get the
panel turned on for temporary power. This was 40 years ago, I wish I had
heard of using a hammer drill, that is if I could afford one back then.
Wowsers. The worst one I did took me maybe an hour or so. It
was in an old fenceline between two fields. I was convinced someone
must've buried an old hedge post right where I was driving the ground
rod. The last half of the 10' rod went pretty slow.
*I have been using a rotary hammer for many years now except that I have
ground rod driver bits to go in the rotary hammers. You got lucky with your
soil conditions. In some spots I hit shale and it is very slow going in.
I've lost count.
Oh, if you put the light in your pocket, turn the battery
pack backwards. So that when the button get pushed some how,
the batteries don't all go dead. I found mine dead in my
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.