Japanese Toilet-Sink Combo Saves Millions of Gallons of Water Each Year

July 30, 2021 at 1:27 pm




The water used for handwashing fills is re-used to flush the toilet!




The Japanese have been doing something super smart since the 1950’s – reusing their handwashing water to flush the toilet.

The concept is simple but genius – install a sink above the toilet so that the water used to wash your hands fills the tank for the next flush.

The 2-in-1 toilet was originally marketed as a space saver in 1956, when the price of real estate in Japan was skyrocketing and homes (and bathrooms) were getting smaller and smaller.

But 65 years later, the sink-topped toilet is more revered for its water-saving feature.

As clean water becomes more and more scarce, the invention is making headway around the world.

In Japan alone, the toilet saves millions of gallons of clean water per year.

Not only does it save space and water, it helps ensure kids won’t forget to wash their hands, as someone won’t be able to flush unless they do.

Plus, they are cheap! You can buy a sink to top your toilet for less than $100 on Amazon:

Or you can get a fancier version if you wish: