If I turn a faucet in the house off quickly, I hear a rattle. I traced this
noise back to the water heater. If I shut the valve off that feeds the water
heater, and repeat the test, the noise does not occur.
I have a 2 year old water heater, that I believe has a built in Heat
trap/valve. I believe this related to my problem.
Is this normal?
Could this valve be going bad?