My gas hot water heater is leaking from the bottom. I turned the inlet valve off because I thought that I was going to have it repaired yesterday. However it will not be repaired for two days, so I turned the valve back on. But now there is no pressure on the hot water side. If you leave it off for a couple of hours there will be a little water, but then it begins to just trickle. The trickle is hot. There was nothing else done. I need to take a hot shower, how do I get the water pressure back up?

Is the pressure loss thrughout the house or just the one valve? Cheers Tom