1. The material is concrete, metal, and gravel.

2. The design of the ecological water pipe is as seen in the usage drawing to form a waterway by connecting on one direction.

3. The bottom of the water pipe has little hills so that water stays all the time and the sand can be stacked for plants to grow in it.

4. On the upper part of the side, the gap is large, and in it a large amount of the leachate can flow in and also it is formed by concrete mixed with large gravel to make mosses to grow.

5.There is a path for animals to move inside the wall for ecological purposes.

6.At the bottom is the waterway that can be opened and closed so that water can exit when necessary.