it is very common for gas water heater to have sediment build up on bottom
cause this problem.
You need to purge the tank and see if it goes away.


wrote in message
oups.com...
Messing with anything may cause a leak in a 8 year old tank.

I would turn up the TEMP, and if that doesnt do it replace the tank.

The thermostat probably has sediment on it and isnt responding as it
should....

Look in the burner area! See all that rust? Its acting as a insulator,
increasing your energy cost

time to shop for new tank so you know whats available