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Do we know that the pools' structure hasn't been damaged so that water leaks out through cracks?

No we don't. (We don't know how far the pool was re-filled, either.) However, we calculated that the No. 4 spent fuel pond heats at least at 2°C/h when not boiling and evaporates at 3.7 tons an hour when boiling, that's 88.8 t per day. The amounts pumped into the No. 4 reactor's spent fuel pool (see here) were 125-150 t at a time, the last time 140 t two days after the previous filling. That is in the right ballpark if you take the re-heating of water cooled by the previous addition into account.

*Lunatic*, n.
One whose delusions are out of fashion.

by DoDo on Fri Apr 1st, 2011 at 06:34:21 AM EST
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