Although I've lurked on FR for many years - this is my first actual post, and it's about a water heater! At 2 A.M. I was woken up out of a sound sleep by a high pitched racket that turned out to be my water heater. I could hear water activity in it, but mostly it was just making a squealing racket (it's electric, by the way, as is everything here). Since I couldn't find an "off" switch on the thing, I started flipping switches on the circuit breaker - as I was doing this, though, the thing petered out...