Water supply systems fail for a number of reasons. One reason is that the borehole was not properly constructed in the first place. This short film explains the procedures needed to provide a good drilled water supply that can last for many years. Construction needs to be carried out by a reputable driller and there is need for independent and professional supervision. For more details, consult the RWSN publication: Supervising Water Well Drilling A guide for supervisors on rural-water-supply.net/en/resources/details/392