TOILET SYSTEM

PROBLEM TO BE SOLVED: To provide a toilet system capable of reducing backflow of odor of water circulating through a circulation pipe to a toilet bowl.SOLUTION: A toilet system 1 comprises: toilet bowls 2; a circulation pipe 4 for circulating excrement discharged from the toilet bowls 2 and conveyance water conveying the excrement; a water tank 6 connected to the downstream side of the circulation pipe 4 for storing the excrement and conveyance water circulating through the circulation pipe 4; a drain part 9 for discharging drainage stored in the water tank 6; a block part 911 provided in the drain part 9 for blocking circulation of air; and negative pressure means for making a gas phase portion of the circulation pipe 4 and a gas phase portion of the water tank 6 negative pressure. Preferably, the toilet system also comprises a circulation line 7 for circulating the conveyance water stored in the water tank 6 to the circulation pipe 4, and a circulation pump 11 for delivering the conveyance water stored in the water tank 6 to the circulation line 7.SELECTED DRAWING: Figure 1 【課題】流通管を流通する水の臭気が、便器へ逆流することを低減できるトイレシステムを提供すること。【解決手段】トイレシステム１は、便器２と、便器２から排出された排出物及び該排出物を搬送する搬送水を流通させる流通管４と、流通管４の下流側に接続され、流通管４を流通される排出物及び搬送水を貯留する水槽６と、水槽６に貯留された排水を排出する排水部９と、排水部９に設けられ、空気の流通を遮断する遮断部９１１と、流通管４の気相部分及び水槽６の気相部分を負圧にする負圧手段と、を備える。また、水槽６に貯留される搬送水を流通管４に循環させる循環ライン７と、水槽６に貯留される搬送水を循環ライン７に送出する循環ポンプ１１と、を更に備えることが好ましい。【選択図】図１