Injection of water into the reactor vessels is now being shifted from sea to freshwater.I have found reports that water injection is being provided at flow rates at around 2,000 gallons per minute average for reactors 1-3.
At #1 it is flowing through a feedwater line and in the other two through fire protection lines.
I do not understand the latter. However, it would seem to me that means were found to break into the feedwater system piping to effect cross connection from the fire protection system which, originally must have obtained sea water from the plants sea water intake structures through portable fire pumps.
Now, with U. S. Navy freshwater barges on-site, the use of sea water can be dispensed with.
