Yeah, you have to soak and then scratch. Best with a roller, soak a lot with water, then scrape with long strokes of a spatula and hold the shovel under it with the other hand. Otherwise, the binec is unreal and when the wet painting falls to the ground and to some tent or cardboard, it is worn everywhere and it is cleaned cleanly. And so continue in parts until you scratch the whole room. Definitely do not save water, otherwise you will make scratches that perhaps cannot be repaired. Then plaster the holes in the nails and let the whole thing dry. :-)