It was a single pole switch that was working. The person who connected it stuck the wire through the top of the water heater and stuck it into the back stab of the switch on the same side as the feed hot. That was as high as I could lift the switch because the wire was too short. It was hard to work on, so the ground was hooked around the ground screw but the screw wasn't tightened. The cover was missing from the switch, too.

I apologize for the quality of the picture. After I broke two $400 phones, I bought a cheap one for $200 and it doesn't take good pictures. I know it's only Canadian money but it was my Canadian money.

As to cords for water heaters, that's a good idea. It eliminates the need for straps, too.