When I was learning the electrician’s trade in central Illinois, I was shown a method of installing ground rods that is fast and easy. First, dig a small hole about a spade deep and a spade wide. Fill the hole with water, and push the rod into the hole. At first you’ll only go in a couple of inches. When you meet resistance, pull the rod out and then push it back in the same spot. The second time the water creates a suction action that helps push the rod into the ground. In the rock-free clay soils common in my area, I don’t even need a hammer to drive rods home. I simply shove them in by hand.
David C. Volker, Angola, NY