[gen3]

My understanding is that with most current reactors there is an inner loop that is constantly recirculating (reactor to turbine) that does not leave containment. This goes through a heat exchange with other water to jettison waste heat from the system. This waste heat can be something like taking water from a river and ejecting it back into the river, just slightly warmer.

I’m curious how much using less water actually matters. It’s not like the jettisoned water is dangerous or radioactive