I have a similar problem, a 70# jack hammer will not drive them all the way
in. I just used more of them to compensate.
John KK9A - W4AAA
To: maflynn@theflynn.org
Subject: Re: [TowerTalk] w7ekb & ground rods
From: Ken <wa8jxm@gmail.com>
Date: Sun, 18 Jan 2015 20:00:45 -0500
If I may ask, what's the "appropriate tool" when you have a rock layer 40"
down? i tried a hammer drill, waste of time. I rented an SDS-MAX hammer
and I
got one in all the way, four others only made it most of the way. So what
is
the recommendation?
Ken WA8JXM
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