TEPCO shows media fuel rod removal work at Fukushima

OKUMA, Japan — More than two years after Japan’s nuclear disaster, damaged vehicles, twisted metal and other debris remains strewn about the Fukushima Daiichi nuclear plant. Scores of black and gray pipes and hoses cover the ground in some places, part of the company’s makeshift system to pump water into the damaged reactors to keep them from overheating.

TEPCO showed off a massive, nearly complete steel structure designed to help workers extract more than 1,500 fuel rods from a damaged reactor building — No. 4 reactor — at the center of international concerns.

Concerns have focused on the fuel rods in the cooling pool of No. 4 because the pool sits atop the damaged building and remains vulnerable to earthquakes. Currently, a jury-rigged system of pipes and hoses pumps water into the fuel pool to keep it cool, as well as into the reactor cores and fuel pools of nearby reactors 1, 2 and 3.

TEPCO built the 52-meter—tall structure next to and partially over the remains of No. 4 reactor, which suffered a hydrogen explosion after the disaster, to safely remove the 1,533 fuel rods. The rods will be transferred to a joint cooling pool inside a nearby lower building.
[link to www.japantoday.com]

Something wrong about this... "joint cooling pool inside a nearby lower building", has to be the Common Pool with a capacity of 6840 bundles. At the time of the accident there were 6375 bundles in that pool which gives it can hold another 465 bundles but there are 1533 bundles in the SFP4... are my figures wrong?... have they moved bundles from the Common Pool somewhere else?... maybe to SPF5 and SPF6 which have enough free capacity... AFAIK they haven't... Waterbug, or someone else, help me out with the math or something I've missed...
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