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Dam down: Ironically, water is being used to knock down a dam in Sweden. Hydrodemolition techniques are being used for the refurbishment contract on Sweden's Japstrommen hydropower station dam wall and three spillway gates using Aquajet's Aqua Cutter robotic equipment; including underwater operations and night-time temperatures of -25C.The dam will be replaced with a bigger one over the next few years. 
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