Today, there are various methods to collect water consumption data. Approximate estimates are the only method that was used in the past, while with the advancement of engineering tools and equipment, today more accurate measurements can be used to estimate the amount of consumption of each device. The final consumers of water include equipment in which low pressure water. This equipment includes bathrooms, toilets, washing machines, faucets, irrigation equipment, washing equipment, cooling equipment, and humidifying equipment. Water leakage from facilities can also be placed in the same group. It is important to accurately measure consumption in each of the water-consuming components. Knowing the amount of water consumed is one of the most essential information needed by urban water managers and planners. Investigating the efficiency of the water consumption reducer can lead to the modification of the design of the water consumption reducer. In this research, after the total consumption data was collected, the data were entered into the consumption analysis software. The effect of using a water consumption reducer on per capita consumption was investigated. The software determined the time, place, and amount of water consumed. The installation of consumption reducers on the Fixtures Unit reduced the per capita consumption by 78 Lit/day.