I'm both frustrated and confused. No one had mentioned to me, even the owners manual that says about replacing the anode rod, and zero instructions come with the new anode rod, said there needs to be metal to metal contact on the threads.
I hate leaks so I used both some dope and pink teflon tape. No leak for sure! But now I think i have to take the new rod out and clean all the threads so it makes contact. Why do threads need to contact? Isn't the rod itself enough to attract the corrosive elements in the water? Could I run a wire from the anode head to touch any other part of the heater on the outside to not have to remove the anode?
Update 2020-05-17: Measured resistance, 26 ohms on a spot with some less than clean metal. ~0.1 Ohm on a clean shiny metal edge of the tank fitting (was scuffed up by the impact socket for sure) and I cleaned the bolt head with brake cleaner and also scuffed with a wire brush (dremel drill).