I just bought a house and moved in yesterday. After finally figuring out how to let the hot water heater fill up, we have hardly any water coming out of any faucet in the house when we turn on the hot water. The cold water comes out fine. They house had been winterized. Last week water was turned on and the hot water heater was filled. Then drained. What can I do? The house and pipes are not old, built 2004. Everything I have seen says to drain the heater, but that was done last week. And still no pressure.