No matter how advanced our society has become there are still some situations in which indoor plumbing is not a viable option for a number of reasons. However, nature still calls and we need a clean and sanitary place to go to the bathroom. For instance, construction companies working on remote job sites require facilities for their workers to use. Or perhaps a music festival is taking place in a wide-open field on the property of a large farm. Concertgoers surely need to be accommodated as well.