How much water does a nuclear powerplant PWR use daily?
The leakage from the primary circuit is extremely small and there is really no water make-up required. There will be some small leakage from the secondary circuit due to steam leaks, but very little. The only large use is the cooling water used to condense the steam at the turbine LP end. This can be a continuous flow from a lake, river, or the ocean where the water is used once then rejected, or if air cooling towers are used it can be re-circulated.
