Rural water supply and sanitation is one of major programs for rural development applied not only in Vietnam but also in other developing countries. However, due to poor income and low knowledge conditions, the numbers of farmers achieve this are not so high. Currently, there is a little documentation in Vietnamese concerning toilet design have been found in bookstores and libraries although this is a real need, special for rural areas. For this purpose, a rural toilet design manual was just written in the College of Technology (CoT), CanTho University (CTU). Many types and forms of rural latrine - toilets......