I figured it was sea water, I was just curious how they circulated the water to the condenser. For our rotary evaporators in graduate school we used a small submersible pump in a bucket of ice water. Very effective. Pretty sure the Victory didn't have an ice machine.
Possibly sea water John, without being facetious, that's the one item they had plenty of. When I go back on the Victory again I will ask the tour guide how it worked. They are pretty good at answering questions about the Victory.