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v3 Chapter 1143 World without games (six)
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... of water resources, so the filter process has begun from the moment when daily water enters the drainage pipe.
The filter system is very detailed. For example, the water discharged from the kitchen and the water discharged from the toilet will not flow into the same set of pipes, nor will it be filtered under the same mechanism; the water flowing out of the toilet ...Depending on the flow outlet (bathtub, sink, toilet), the pipes and filtration systems that come in are also different.
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