It depends on the complexity of your network in terms of interconexionx , dependability... I think that Bayesian Networks may be a usefull tool for you.

Thank you Dr.laggoune

Thank you very much sir.

What is your definition of reliability? Are you interested in predicting the likelihood and location of leaks? There have been a number of studies of failures and leaks in cross country pipelines mainly for oil and gas, both onshore and offshore ( see the OREDA database) , but the methodology is applicable to water pipes. You may have to get more water specific failure rate data from water companies. A good paper describing the approach that you can use is by my ex colleagues - www.icheme.org/~/media/Documents/Subject%20Groups/Safety_Loss_Prevention/Hazards%20Archive/XXI/XXI-Paper-044.pdf

Thank you Dr.david slater for sharing your research

Thank you Dr salazar

Dear Sangamreddi,

Search for this article, you will probably find your answer or a new path to your search.

Water Distribution Systems Reliability: A Review of Research Literature

Article Water Distribution Systems Reliability: A Review of Research...

I would answer that it depends on how complicated the water supply network is.

1.Cut and Tie sets are suitable to assess the network reliability

2.Decomposition is OK