Action Contre la Faim (ACF) has been working in the field of water supply in Lao PDR since 1991. Since then, ACF has built water supply systems including water boreholes, wells, and spring fed gravity flow systems in more than 300 villages in 3 provinces of Lao PDR. The majority of target villages being rural villages, some of them with difficult access (up to two days walk), technical solutions have been developed for the building of gravity-flow water supply systems fed by springs in remote areas. For instance, plastic underground reservoirs or gabion structures have been used to replace usual concrete structures of gravity-flow systems. This paper discusses about the methodology and the techniques used to build such systems.
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机译：行动Contre La Faim（ACF）自1991年以来一直在老挝人民委员会供水领域工作。从那时起，ACF建造了300多个村庄的水钻孔，井和春季饲料重力流量的供水系统。老挝人民群岛省。大多数目标村庄是农村村庄，其中一些有困难的访问（长达两天的步行），技术解决方案已经开发出用于偏远地区的弹簧饲喂的重力流量供水系统。例如，塑料地下储层或船只结构已被用于更换通常的重力系统的常用结构。本文讨论了用于构建此类系统的方法和技术。
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