RAIN WATER CATCHMENT SYSTEM
Catching clean rain water is one of the most common and oldest methods for collecting safe drinking water. The illustration of a roof catchment system is only to show a 5000 liter cement storage tank that can be easily built with hand tools. Materials and instructions for building this tank are detailed in Bulletin 4.
SAND FILTER FOR IMPROVING WATER
The water from many rivers and lakes is polluted. A modern purification system or a deep well supplies the best, clean, safe drinking water. However, families without safe drinking water must build their own system to improve the quality of the water they drink. The illustrated sand filter has limited capabilities but can improve the water quality. Once again the low cost cement storage tank that is described in Bulletin 4 can be used as the tank for the sand filter.
