Buy a ground rod from your local hardware store. Put it by the dishes, and bond your dishes to that, HOWEVER, you MUST also run a wire bonding that new ground rod, to your house ground by your electrical meter box. That's code, and the reason is if it's not bonded, they can be on two different potentials, and cause all sorts of odd issues.Don't have that option.. We are not on utility water, we have our own well and well pump. The water line is plastic, so that's a no go. I have some copper pipe, ill use that and drive it into the ground.