This article outlines the results of research and development carried out on the Bush Pump over the last six years. Since 1989, the "B"... Read more...
Zimbabwe's water pollution problems, caused by mining, industry, ordinary farming, and agricultural-product processing, have not yet reached the... Read more...
SIWIL is a pipe lifting device that is called after its developers SIbanda Zanamwe and WILlem Harderwijk. It was designed as a more practical and... Read more...