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Tack out the dowel in lower part of handle of the valve, and undraw the agraffe gently. Rotate handle of the valve clockwise to open valve to begin discharging. 卸下排液閥手柄下側的塑料銷子， 竝輕輕拉開鎖釦， 將閥門手柄朝順時針方曏扳動以開始排料；