Driving ground rods
I was figuring the same, but I wanted to see if anyone else had tried. I don't have a hammer drill and getting one just for this would be impractical, and a $16 air chisel is cheaper than the $24 rental . My only concern is if the $16 air hammer would fall apart after 1 rod. I've been involuntarily reminded that low bidder can end up being more expensive when I bought a hole saw where it was cheapest to get one that the hole saw was driven by a d-shaped holes that turned into a circle that wouldn't drive the saw, after drilling 3 holes.
But if the air hammer lives, I know it'll be useful for car work. $20 right angle 4.5" grinders are a way of life in body restoration!
Please do NOT consider any "before" picture of my house as any kind of endorsement of any particular construction method. In fact, you should probably assume that if I post a "before" picture, I am posting it because I am soliciting advice on a proper replacement for one of MANY things done wrong by a previous owner.