Originally Posted by
Gunnar Alquist
I would agree with Fritz. Could that be where the sacrificial anode rod goes?
That's what I'm thinking too, and that this particular water heater is like some I've side, side T&P *only*, no top opening for the T&P (most tanks with a side T&P opening have that as an "alternate" opening, with the preferred location being in the top of the tank, but, I've seen a couple of tanks in the past which *only had* the side opening for the T&P).
Of course, if that is for the anode rod, that tank is probably gone now any way.
