PiReM Drinking Watertest Water supply mains in industrialized countries have grown over many decades and present complex systems today. In addition to continuous expansion they have been affected by the use of different pipe materials, variable installation techniques and exogenous environmental factors. The requirements for systematic maintenance of the pipe networks have increased due to the aging of the pipes, rising repair costs and failure rates. At the same time, legal requirements demand regulative measures in order to guarantee the security of supply for future generations (see DVGW W 401 and OVGW W 100).

The asset value of the pipe networks presents the most cost-intensive investment in the municipal infrastructure. Since underground pipe networks can only be assessed conditionally through direct inspection, indirect means, such as analyses of significant failure statistics, provide valuable information concerning the current state and future development of pipe networks.

Based on the decision support system PiReM, both the long-term and mid-term rehabilitation requirements are calculated and the financial resources required can be planned proactively.
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