Our hot water pressure suddenly dropped tonight, quickly down to nothing. I shut off the water heater, closed both the hot & cold valves to the tank, turned on the "hot" at a faucet, and tried to drain the hot water tank. I only got 1 gallon or so out of the tank. Does this mean there's a problem with the supply to the tank? Could something be wedge in there? What should I try next?
Thanks for your help!