Junk Plant Pilgrim's Happy Talk.

update

The feed water system goes upwards to 1300 psa, steam about 600psi...a leak in the main condenser side might get to a low vacuum type of thing.       

***I doubt it went down like this. We are talking about a 500 to 600 psi system. I have seen heater/pipe steam plumbs 20 feet long and roaring like a B-52. They use to send me into the heater bay, very high radiation...to monitor. They later had tv cameras in there and we monitored it from the control room. Although they might have a steam leak into the main condenser...   

"Operators shut down the reactor March 6 because of a suspected leak in a system needed to heat water before it is pumped into the reactor vessel."

The plumb could cut you head off and the vast majority of the plumb is not seeable.