Using the Weibull ++ software in water supply network failure analysis

The water supply network is a basic element of the water distribution subsystem and its task is to provide consumers with water of appropriate quality, in the required quantity, under appropriate pressure, at any time and at an acceptable price. To fulfil these tasks, the water supply network should have an appropriate level of operational reliability. The paper presents an analysis of the causes of water pipes failures using the Weibull++ software. The analysis was based on the operational data from 2018 obtained from the water supply company. The data included the failure book specifying the date and place of the failure, the cause of the failure, diameter and material of the damaged pipe. The probability density function for the failure of water pipes and its cumulative distribution function have been determined. The impact of individual types of failure causes on the failure of the water supply network was determined. The results provide information about the probability of failures of the water supply network depending on their cause. These results can be used in further analyses of the reliability and safety of water supplies to consumers.