Dams turn rivers to lakes. They kill the essence of the river – flow. So what happens when they open up a dam to repair it? Check it yourself. Recent release of dam Podselo, first dam on Soča river, Slovenia, exposed the long-flooded canyons of Soča and Idrijca together with all the dirty secrets of hydro power. This is an opportunity to deepen your perspective on reservoirs. There are millions of tones of alluvial deposits packed with mercury from Idrija mine clogged behind a dam that nobody is taking care of (SENG will only remove 40.000 cubic meters of it), there is no fish passage, there is no way to protect the wildlife when the release happens…do you still think dams are perfect solution?