Sounds like, quite stupidly, the reason the water levels dropped in I believe the no 2 reactor(wasn't quite clear) was because the pump ran out of fuel.
Though thats I guess a problem the country is running out of fuel seemingly and some things desparately need it. However the situation is fairly borderline because it would seem quite quickly after stopping pumping water in, its turning to gas too quickly and the water level is dropping below the rods(partially). Are they still venting gas, because the only real way to remove heat is pump in cold water, while venting the hotter gas.
Jesus, still listening, their readings suggest that most of the 4 metre long fuel rods were exposed for a while before they got the water pumped back in.
Considering they are now seemingly pumping water continuously into 3 reactors and fuel has been an issue. Somehow it feels a bit more like getting out of control just because cooling the 3 reactors is just becoming logistically harder over time.