I got a water heater that turned out to be 110v the flex going to it has 2 blacks and a ground as you would expect. Can I just Disconnect one of the hots from the breaker, move it to the neutral buss (and flag it with white tape.) and use that setup as my 110v ?
It sounds fine to me but I have been told I don't know everything
to be clear I would have in the end
1 hot black
one black with some white tape going to the neutral
and a ground
in the box, a double pole breaker with only one pole hooked up