1930s bathroom sink
Ma unknowingly uses the men's washroom to clean herself up upon their first morning in the weepatch. This is about the type of sink that she would be facing to wash up (only most likely not as nice due to the circumstances). This is a sink from a nice indoor bathroom with plumbing. Camps usually didn't have these sorts of sanitary means. They may have had to pump water as they did on the farm and then the used water might run back into the fields.
Facts about the use of water taken from: