Molten has a good point. Pumping, what, tens or hundreds of tons of highly radioactive, hot, corrosive liquid around puts a crushing demand on the perfection of

Molten has a good point. Pumping, what, tens or hundreds of tons of highly radioactive, hot, corrosive liquid around puts a crushing demand on the perfection of your plumbing, heat exchanger, and pumps. What do you do when (not if, we know plumbing) it leaks?