No, you don't pump anything. You just vary the flow rate. The flow is never going to less than 50% (and the load isn't either.)
Overall the flow management (at least with our dams in the Cascades) is more about making sure the reservoir doesn't overflow or dry up than it is about making sure that the river doesn't run dry. There's a huge amount of snowpack that builds up every winter, even with the glaciers receding over the past 50 years.
> Overall the flow management (at least with our dams in the Cascades) is more about making sure the reservoir doesn't overflow or dry up than it is about making sure that the river doesn't run dry.
So what? I didn't say anything about the river running dry. What are you responding to?
Overall the flow management (at least with our dams in the Cascades) is more about making sure the reservoir doesn't overflow or dry up than it is about making sure that the river doesn't run dry. There's a huge amount of snowpack that builds up every winter, even with the glaciers receding over the past 50 years.