An element being an electrode for an electrochemical cell, which comprises an electrically conductive substrate and an electrically conductive corrosion resistant coating comprising a multielement material, which coating is formed on and at least partially covering said conducting substrate, is disclosed. The filtrate from the filter is provided to a dechlorinator prior to being subjected to an optional, reverse osmosis membrane unit and then to a still which discharges purified water at USP standards for purified water or water for injection. The positive ions of the first positive charge state are accelerated in acceleration stages and stripped to convert them to positive ions of a second charge state. Further, also according to the invention, there is between the impermeable lining layer and the concrete layer a non-binding sliding layer to facilitate relative movements between the impermeable lining layer and the concrete layer. The fuser member is advantageously used without a release oil applied to the outer layer.