Environmental Aspects
The environmental impact of modern style washlets differs from regular flush toilets. Modern toilets use less water than old toilets, and the self-cleaning options also reduce the amount of detergent. Some toilets even change the amount of water for the flush depending if the seat was flipped up (indicating male urination) or not. They also cause less toilet paper to be used. On the other hand, these toilets also consume energy, and are estimated to consume 5% of the energy of the average Japanese household. In rural areas, toilets that use very little or no water have also been designed. These are also considered as emergency toilets in case of earthquakes.
Read more about this topic: Toilets In Japan
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