No, that is the reason they where suppose to fall back on diesel based pumps. The electrical outage after the quake made the electric pumps fail. The diesel based pumps also failed as we agree upon. After that there was a mechanism simply based on preasure which supposed to push out hot steam, cool it off and feed it back as water. However this mechanism led a decreased level of water (from what I have heard). Which is why they now resort to pumping it in manually. I think it's safe to say that two major explosions at the plant (even though it wasn't the reactor it self apparently) is a sign of failed safety mechanisms.
Well the batteries are exactly the "electric backup" that was mentioned, although you're also right in that it was never designed to solve the entire casualty, only to last long enough to get other sources of power online.
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>The electric backup worked as designed.
No, that is the reason they where suppose to fall back on diesel based pumps. The electrical outage after the quake made the electric pumps fail. The diesel based pumps also failed as we agree upon. After that there was a mechanism simply based on preasure which supposed to push out hot steam, cool it off and feed it back as water. However this mechanism led a decreased level of water (from what I have heard). Which is why they now resort to pumping it in manually. I think it's safe to say that two major explosions at the plant (even though it wasn't the reactor it self apparently) is a sign of failed safety mechanisms.
There are batteries, they ran the pumps for almost 8 hours. That was one of the backups.
Yeah you are right, but that wasn't sufficient enough to solve this on the other hand.
Well the batteries are exactly the "electric backup" that was mentioned, although you're also right in that it was never designed to solve the entire casualty, only to last long enough to get other sources of power online.