FIELD: construction.;SUBSTANCE: lavatory contains wash basins and toilet bowls with flushing cisterns. Each lavatory contains at least one toilet with a flush tank, which is connected through a duct with drain holes of the sink and contains a device whereby flush tanks of at least some other toilets are connected to a supply duct with drain holes of the sinks, which opens the feed line when the flush tank is full and closes it when it is empty. The flush tanks of all the toilets or part thereof are connected to the water supply system through a supply pipe.;EFFECT: reduced consumption of clean water, improved hygiene, reduced incidence of infectious diseases, a more comfortable environment for users.;2 cl, 2 dwg
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