I have problem about water in my home. So I decide to make a water filling device which contains three water towers. Each water tower contains various materials. On the top we use a water tower as a water storage. on the next place we use a water tower which contains rocks at the bottom, metal plate on the rocks, and coarse sand on the top. At the bottom, we use a water tower which contains refine sand on the top, small, medium, and large rocks at the bottom. It is arranged very neatly. Thus, we can get pure water which we can drink directly.
Zulmi Nur Fauzi