WATER CLOSET AND METHOD OF ITS OPERATION Russian patent published in 2012 - IPC E03D9/00 

FIELD: construction.

SUBSTANCE: water closet comprises a toilet sink with a flush tank installed in a room with two or more floors and containing wash basins and/or shower cabins and/or baths. For flushing spent water is used from wash basins and/or shower cabins and/or baths located on the same floor with the toilet sink or one or several floors above, at the same time the flush tank is connected by a vertical pipeline to the drainage nozzles of wash basins and/or shower cabins and/or baths, besides, in the vertical wall of each drainage nozzle there is a hole to discharge spent water into a sewage outlet, and on some or all pipelines connecting a vertical pipeline with drain nozzles of wash basins and/or shower cabins and/or baths to supply spent water, there are check valves.

EFFECT: reduced flow of pure mains water with better toilet sink flushing, establishment of more comfortable conditions for users and improved quality of their life, saving power resources for water cleaning and disinfection, toilet room heating.

2 cl, 1 dwg