[RipNC]

Was there any water outside the rig by the heater?

We had the pressure relief valve release (had to be repoaced as it wouldn't reset) and as the water flooded the metal enclosure (inside the cover) water infiltrated to the floor of our pantry. Apparently thru the opening where the anode screws in - there are perforations there and the water built up inside the cover until it reached the vent slots. I, eventually, awoke to the sound and thought it was coming from the pantry and found the floor wet. Walked out the door and the ground under our rig was wet (no one elses was) and shut water off. It was pouring out of the seams and vent slots. Replaced the pressure relief valve and has been fine since. Much drying of the floor and fans blowing followed.