as this seal is not broken the factory will make it good.

FUSIBLE PLUG

We have told you about a safety valve, we will now have something to say
of a safety plug. A safety, or fusible plug, is a hollow brass plug or
bolt, screwed into the top crown sheet. The hole through the plug being
filled with some soft metal that will fuse at a much less temperature
than is required to burn iron. The heat from the firebox will have no
effect on this fusible plug as long as the crown sheet is covered with
water, but the moment that the water level falls below the top of the
crown sheet, thereby exposing the plug, this soft metal is melted and
runs out, allows the steam to rush down through the opening in the lug,
putting out the fire and preventing any injury to the boiler. This all
sounds very nice, but I am free to confess that I am not an advocate of
a fusible plug. After telling you to never allow the water to get low,
and then to say there is something to even make this allowable, sounds
very much like the preacher who told his boy "never to go fishing on
Sunday, but if he did go, to be sure and bring home the fish." I would
have no objection to the safety plug if the engineer did not know it was
there. I am aware that some states require that all engines be fitted
with a fusible plug. I do not question their good intentions, but I do
question their good judgment. It seems to me the are granting a license
to carelessness. For instance, an engineer is running with a low gauge
of water, owing possibly to the tank being delayed longer than usual, he
knows the water is getting low, but he says to himself, "well, if the
water gets too low I will only blow out the plug," and so he continues
to run until the tank arrives. If the plug holds, he at once begins to
pump in cold water, and most likely does it on a very hot sheet, which
of itself, is something he never should do; and if the plug does blow