Permit it soak in for ~5 minutes than was capable of pull it off in extensive strips. Also tried out out TSP but TSP still left a mess. Water and vinegar functions properly so I am gonna try out it out once more on the wallpaper during the Bed room. http://cheap-removable-wallpaper36925.full-design.com/How-Much-You-Need-To-Expect-You-ll-Pay-For-A-Good-oil-based-primer-after-wallpaper-removal-28052628