The water used to flush toilet is greywater. The amount of bioaerosol varies with the type of flush toilet. All campgrounds have flush toilet and shower facilities. It is focused on "reinventing the flush toilet". Toilets can be with or without flushing water (flush toilet or dry toilet). Related forms include earth closet and water closet (W.C. or flush toilet). He invented the single piece, ceramic flush toilet. He is credited with the inventions of the flush toilet and the elephant clock. Another pioneering manufacturer was Thomas William Twyford, who invented the single piece, ceramic flush toilet. They are slightly larger than a flush toilet, but use roughly the same floor space. The seat can be either for a flush toilet or a dry toilet. In the United States, a "commode" is a colloquial synonym for a flush toilet. A low flush toilet uses one to two gallons per flush. McCabe #1 also has a seasonal flush toilet inside. It consists of an ordinary flush toilet installed in the basement, with no surrounding walls.