A dry toilet, also known as a composting toilet, is a sanitation system that does not use water for flushing. Instead, it collects human waste in a container where it can decompose naturally. This method is often used in areas without access to traditional plumbing or where water conservation is a priority. Dry toilets can be environmentally friendly, as they reduce water usage and can produce compost that enriches soil. They come in various designs, including self-contained units and centralized systems, making them suitable for homes, cabins, and even public facilities.