During the next renovation of the apartment, it is necessary to remove the old wallpaper. And the paper and vinyl sheets are easier to tear off, when we soak it well, and most of all the glue on its bottom. Tear off well-soaked wallpaper with an ordinary metal spatula. While, to soak it well, using a brush or a fur roller, you have to scratch it beforehand and tear it with a sharp wire brush, e.g.. the one we use to remove rust. Thanks to scratches, water can more easily penetrate the adhesive joint under the wallpaper.