If the water in the ZNPP cooling pond "decreases", it will need to be "added", and there are certain algorithms for how to do this:
"Since September 2022, ZNPP power units have not been operating, therefore active evaporation of water from the cooling pond does not occur and there has been no need to feed it yet. And even if there will be no water in the Kakhovka Reservoir at all, the design provides measures to replenish it. One of the latter is the use of underground water from wells at the ZNPP site."
