In their desperation to stop radioactive leaks, TEPCO engineers have used anything at hand. They have mixed sawdust and newspapers with polymers and cement in an unsuccessful attempt to seal a crack in a concrete pit at reactor No.2.
On Monday, they resorted to powdered bath salts to produce a milky color in water to help trace the source of the leak.
TEPCO said it was also planning to drape a curtain into the sea off the nuclear plant to try to prevent radioactive silt drifting out into the ocean.