Washlet in Japan

Have your ever hear washlet before you arrived in Japan?

I never use one or seen one before, the first time I use the washlet I feel like someone blasting a water cannon at my butt. The second things that come to my mind that the water feels like it is boiling hot. At the moment, I try to locate the stop button but it seem disappeared ( the one I used five years ago have no English).

After five years in Japan, I noticed that most Japanese use the heated seat function even in the summer. Why would anyone want to turn on the heated seat in the summer! The water pressure always turned to the highest setting, this is crazy.

Photo by Travis