October 1991 -The Valve Tower is seen with water pumped up from the River Derwent at Ambergate. Another outlet is just visible above, but a lower one was buried by the reprofiled embankment. The outlet is shown to the right with a protection dome. I believe all except the buried Outlet can used as inlets and outlet. HRH Queen Elizabeth II opened Carsington on the 22 October 2022. (info STW website)
Photo is from STW Carsington Facebook Website.