Cheapest and simplest techniques of filtration systems are required for rural water treatment in
developing countries. Using a filter made of blocks for the water treatment enables us to make porous concrete filter and
use it vertically. It is expected that the required area would decrease by more than 70 % if porous concrete filters were
used vertically. The operation and backwash mode would be simpler than using horizontal sand filters as filters made
of blocks would be used instead. The feasibility study focused on finding adequate materials, compositions and
methods of making a block with enough resistance to water pressure, sufficient porosity for water transformation and
using inexpensive and available materials. A pilot study was performed to determine an appropriate thickness of filter.
Testing the porous filter in another pilot study using the low overflow rate of river water showed biological growth in
that media and an adequate efficiency of about 90-100