Kyodo News-
Workers adjusted measuring guages Tuesday as part of the process to flood the vessel containing the No. 1 reactor at Fukushima with water and creste a system to keep the fuel inside cool.
The working environment remains tough because of the high radiation levels.
TEPCO has increased the amount of water being injected into the No. 1 reactor core in a bid to fill the reactor's primary containment vessel with water above the level of the fuel. The utility also plans to install a heat exchanger to keep the water circulating around the reactor cool.
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