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A dry toilet is a toilet that operates without flush water, unlike a flush toilet. The dry toilet may be a raised pedestal on which the user can sit, or a squat pan over which the user squats in the case of a squat toilet. In both cases, the excreta (both urine and feces) falls through a drop hole.〔 The urine and feces can either become mixed at the point of dropping or stay separated, which is called urine diversion. A dry toilet can be any of the following types of toilets: a composting toilet, urine-diverting dry toilet, Arborloo, bucket toilet, pit latrine except for pour flush pit latrines, incinerating toilets, freezing toilets. == Nomenclature == There are several types of toilets which are referred to as "dry toilets". All of them work without flush water and without a connection to a sewer system or septic tank: * Composting toilet (in most cases without urine diversion but can also be with urine diversion) * Urine-diverting dry toilet (UDDT) - with urine diversion, as the name implies * Arborloo - which is similar to a pit latrine but has a much shallower pit and is designed for making compost in the pit * Bucket toilet - a very basic type of dry toilet consisting only of a bucket which could be upgraded with urine diversion and the use of covering material * Pit latrine if they are without a water seal * incinerating toilets, freezing toilets - these are toilets with more complicated technology and higher costs People mean different things when they talk about a "dry toilet". Often, the term "dry toilet" is used for a composting toilet, but sometimes also for a pit latrine. Calling a pit latrine a dry toilet is not good practice because: * Some pit latrines use water for flushing - these are called pour-flush pit latrines. * As urine and feces are mixed, the pit content is actually quite wet (even though urine does infiltrate in the ground unless clogging has occurred) * Users of pit latrines may use water for anal cleansing which is added to the pit and makes the pit content wetter. Sometimes they even discard greywater (from showering) into the same pit. The term "outhouse" refers to a small structure, separate from a main building, which covers a pit toilet or a dry toilet. Although it strictly refers only to the structure above the toilet, it is often used to denote the entire toilet structure, i.e. including the hole in the ground in the case of a pit latrine. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dry toilet」の詳細全文を読む スポンサード リンク
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