American Standard sells urinals with water use as low as 1/8 (0.125) gallons per flush. https://www.americanstandard-us.com/urinals-list https://www.americanst

American Standard sells urinals with water use as low as 1/8 (0.125) gallons per flush. https://www.americanstandard-us.com/urinals-list https://www.americanstandard-us.com/urinals-list (I only thought of this because the urinals at the companies I've worked at over the past decade proudly displayed these 1/8-gallon numbers.