| 摘要 |
PROBLEM TO BE SOLVED: To provide a soil conveying system capable of saving amount of water resources to be used sufficiently and preventing a bad smell from flowing backward onto the upstream side of a drainage trap. SOLUTION: A toilet stool 10 and a horizontally installed pipe for soil 11 connected with a discharge port of the toilet stool 10 are installed at an optional story, and a soil vertical pipe 12 is connected with the horizontally installed pipe for soil 11. Water use facility composed of at least one kind among a kitchen, a bathroom, a toilet, a washroom, and a washing machine and draining the waste water after use through the drainage trap 20t, etc. and a horizontally installed pipe for drainage 25 connected with a drain port of the drainage trap 20t, etc. are installed at a higher story than the optional story. This soil conveying system is provided with a water storage tank 40 opened for the atmospheric air, connected with the horizontally installed pipe for drainage 25, and being capable of storing the waste water after use and draining the waste water after use into the horizontally installed pipe for soil 11. COPYRIGHT: (C)2008,JPO&INPIT
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