Design of a typical roof water rain harvesting system, consisting of:
- in-line filters for silt removal
- down-take system: design considerations
- cheap, local skill suited, storage tank (materials, design, typical costs)
- storage tank sizing parameters
- water withdrawal means (e.g., hand pump?)
- water disinfection
- water quality testing kits (cheap, local use by school children or teachers)
I hope members would share experiences.