Atwood Water heater questions

independent_TJ wrote:
Budwich, I was referring to the pressure valve of some sort that is built into the city-water twist-on connection. It has a spring, I think, that keeps water in the TT's lines from draining OUT of the city-water connection when city-water hose is not connected. When I press this, it shoots water OUT....so I know city-water is building some pressure in the TT lines when the faucets are closed, but not filling the tank.

Coincidentally, I have also tried the outside pressure releif valve that you refer to, and again water does shoot out of the outer relief faucet....

But the tank feels and sounds empty... I never hear it filling (when i gently lift/rock the tank or tap on it) except for an occasional splash.

Maybe I am crazy, but it feels/sounds empty....??

Let's take this by steps:

1) Highlighted quote.......
Water shoots out of relief valve of water heater (in outside compartment) then water heater is FULL
No other way for water to come out of relief valve unless WH Tank is filled.

2) City water connection
That spring loaded thingy
That is a check valve that is part of the city water inlet assembly.
It stops water from leaking out of city water connection when using on-board pump.
City water and on-board pump discharge feed same cold water line

You have been lucky-------do NOT push in on that plunger tip at city water connection when water pump is running. It will dislocate the o-ring and then city water connection will LEAK

3) With water flowing out of relief valve you can fire up water heater and check it's operation