In a village of the Emporda raises this icon in the landscape, a municipal water tank built in 1962. We were asked to reconvert it and proposed a paronamic wiewing point without loosing the memory and image of the tank. By creating a spiral shape around it base don the experience of the views of its suroundings, we acomplished a game of ausence and presence. Raping the new structure with a metallic mesh to obtain these results, during the day the tank is seen thru the mesh. When the night comes,the proposal is illuminated and the mesh dissapears because of its high degree of transparency and the historic tank come to life.