Step 11: 5.5 Circulation of water
We are going to make a tank for primary storage of the water, in order to ensure the smooth flow of the water streams. The shape of the tank can be any.
A plastic box was used to serve as secondary storage tank of the water.
The white stuff in the figure is a small pump, which is used to pump the water up to the discharging point of the waterfall. Of cause, there is no perpetual motion existing; the model is actually driven by electricity.
This pump works at 12 Volt, and is able to pump the water up to 2 meters. In order to make the water flow out gradually but not erupt out, we need to adjust the water velocity. This can be achieved by altering the voltage of the pump or you may control the speed of the motor.
From the video at beginning of this article , we can see that the whole process is as follow: water flows out of the water sink�flows through four flumes�collected in a transparent bowl�flows into the water tank along the pipe�pumped the water up to the third level of the left tower�water flows down, into the sink again.
Up to now, the circulation of the water flow has been achieved. The following steps will focus on creating visual illusion as well as the steps to make mappings which are close to the original picture.