True on the welding part grandpa.
Funny thing on my ground when I looked at it. The installer grounded mine to my service panel. OK. But when I followed my ground from the box, and to see where the ground rod might be located to see if it was still servicable. There was absolutely no ground to my house whatsoever. Guess what, went to Home Depot and got it grounded. And whoever redid the service panel did a wonderful looking job too. Looked proffessional. But again no ground. Not even to the water line.