Got a house that isn't used much. We turn the water off at the street valve and the water heater off at the breaker when we leave it and turn it on and purge the hot water lines when returning before we turn the water heater back on.
Water heater makes noise as if there is water boiling inside when (guessing now) the heater elements are on.
Should it? Are we damaging something? What is the proper procedure?
thanks,
Richard