This paper presents an application of fuzzy control technique in order to control pressure at entrance of a Water Distribution Pilot Network (RPDA, for its acronym in spanish), mesh with several points of consumption. Same is pressurized by a pump and motor assembly has power variation, which makes it difficult to stabilize control. Fuzzy controller implemented in system selects an optimum condition of operation regarding pressures available and engine output while maintaining pressure for network to meet demand. Evaluation of operating system energy gain with controller action was performed in comparison with operating system without control. Based on these results, fuzzy controller was satisfactory in controlling operating pressure during operation of distribution network.