Washbasins with bottom valve

Bottom valve

— the presence in the design of the washbasin of its own built-in drain valve (in other words, plugs) controlled by a separate switch. "Automatic" in this case means that you do not have to move it manually to open or close the valve — just press the button, turn the lever, etc. Those who often have to fill the sink with water (for example, to save water when shaving) should pay attention to models with this function: the automatic valve is much more convenient than a regular cork.