Did yearly maintenance on gas water heater, lost all hot water pressure
Hello, I just followed the instructions to drain, clean, and refill my gas hot water heater here:
http://www.instructables.com/id/water-heater-maintenance/
After finishing, I seem to have no hot water pressure whatsoever. The water input is open, and (when turned on), hot water comes out of the pressure release valve AND the bottom drain. However, none seems to go through the house pipes and none comes out of any tap in the house. Cold water works fine.
I have tried emptying it completely, opening a hot tap in the house, and refilling the tank from scratch to try and get rid of any vapor lock, but it didn't work. When I tried that, air sputtered out of the faucet for awhile and I thought I must be getting somewhere, but eventually that just stopped and water still did not come out of the tank.
Here are two pics of my tank:
http://i.imgur.com/H3r1tA1.jpg
http://i.imgur.com/UPJGVXj.jpg
Any ideas before I break down and call a plumber? :( Deeply regretting ever performing "yearly maintenance" on my hot water heater, because I can already predict that someone will just try to sell me a new one.