I have a leaky pipe on the hot water side that I'd like to fix. Following the pipes back to the water heater, I don't think there's a shutoff valve installed anywhere in the line, not even at the water heater outlet. At least, not one that is obvious for me to identify. How inconvenient!
I definitely have a shutoff valve on the cold supply inlet. What is the correct way to "turn off" the hot water so I'm not swimming when I disconnect the leaky pipe? The water heater is in the basement and the pipes in question are a few feet higher than the water heater.