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"wastewater rebirth" is household waste water classifying and recycling system, especially for the high-rise buildings. In this system, the wash basins and bathtubs have two water outlets: one for recycling and the other for drainage. There are two water switches: one for recyclable water and the other normal switch for sewage pipeline.
People on the upper floor open the "Recycle Switch", then the recyclable water goes down through “Recyclable Water Pipeline” which is connected to downstairs. People on the lower floors can reuse the waste water provided by "Recyclable water pipeline". such as flushing the toilet.