![Water from the particular rive](/~content/~uploads/_M/546f6d2d467275656368746c2d77617465726c6f6f702d736b697a7a65322d343938.jpg)
Water from the particular river is pumped onto the surface of the raft by means of a pump. As this pump is powered by solar energy, the flow rate is dependent upon the weather conditions. In sunshine it pours at a rate of 50 litres per minute; a powerful wall of water from the water pipe. If it is cloudy and there is a correspondingly lower pump output of between 10-15 litres per minute, only a slight jet of water flows. No water flows at night. The loop is then interrupted