You've dumped the Tesco's carriers on the kitchen floor and you start unpacking them one by one. You get to the last one and notice that there's a pool of washing up liquid under it soaking into your terracotta floor. You mop up the mess but when it dries it leaves a large, dark mark. You try cleaning the tile with soap and water and detergent but it doesn't move. The wife's furious. These are Fired Earth (cost the Earth more like) San Genis tiles sealed with linseed oil. How can I shift this deep stain?
Paul.