Annual inspection of all water system safety and control valves is required and necessary. Regular inspection, testing and cleaning assures maximum life and proper product function.

All the water pretty much comes down into the lower containment section and it's pumped back into either the core spray system or back into the reactor.

Obviously water is being removed from the primary system, flooding into the containment and entering into the containment sump which is in the basement where all the water essentially ends up.