The CARE Deep Tube well Irrigation and Credit Program (DTICP) assist Bangladeshi farmers to expand the capacity and coverage of their deep tube wells and thereby increase their incomes. However, a major constraint of this and many similar irrigation projects operated by the Bangladesh Government and Private Voluntary Organizations is the general lack of technical information regarding irrigation techniques, practices and facilities. This manual will provide the needed reference material as well as guidance on how to plan and design efficient small irrigation systems.