The process diagrams provide a detailed illustration of a simple yet effective water filtration and storage system designed for household use.
Overall, there are 4 main steps in the process, beginning with impurities water and culminating in fresh water for daily usage. Additionally, a sand filter plays the most important role in filtering the water with several layers.
Regarding the design and storage capacity, the water is stored in 3 metal container put outside which can make room for 200 litre of liquid. Moreover, each container is placed in order from high to low position, with the highest one is used for keeping untreated water. The water runs through step and step filtration thanks to gravity, making the whole system energy-efficient and suitable for area without electricity.
The process begins when untreated water is introduced through the inlet pipe using a tap from the untreated container. As the water descends to the sand filter system, it first encounters the sand layer, which removes larger impurities and sediment. The water then trickles down through the layer of small stones, which filters out finer particles. Finally, the purified water accumulates in the holed pipe before being discharged through the outlet pipe to the storage container. At this stage, the water is kept until being opened by the tap for household use.