This field manual brings together knowledge of the technique of upgrading simple shallow wells. The simple technique of upgrading simple shallow wells has been investigated and tested by staff of the Blair Research Laboratory and subsequently by staff of the Mvuramanzi Trust for many years. It is now well established in many areas of Zimbabwe.
MORGAN, P. (1995): Upgraded Well Manual for Field Workers. Harare: Mvuramanzi Trust URL [Accessed: 08.03.2019] PDF