Key points are not available for this paper at this time.
The cost of water main breaks can represent a significant portion of a distribution system's maintenance costs. Although qualitative guidance is available on why pipes break and when they should be replaced, there are no universal quantitative rules for when to replace pipe. This paper gives a simple method for determining which pipes need to be replaced, based on the history of recorded breaks.
Walski et al. (Mon,) studied this question.