Aesthetic product is easier to present the persuasive concept. People usually pay most of the attention on visual object. Therefore, the design of the appearance is very important.

2 layers present Today’s and yesterday’s result. Compare the situation of water waste. For example, blue is Today's layer, Purple will be Tomorrow's layer.

Punish first, then encourage. Liquid falling presents the water waste. Push people to keep the aesthetic Tree pattern.

Interesting switches (push-pull buttons) attract people to interact with push-pull buttons.

For future development, the liquid can be set up by contraries, starts from no liquid. When shower starts, liquid level raises up.