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Extending the Life of Cast‐Iron Pipes
Author(s) -
Yacklon Joseph C.,
Farmerie James E.
Publication year - 2004
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.2004.tb01762.x
Subject(s) - certification , waste management , shut down , water pipe , environmental science , leak , bottled water , engineering , process engineering , forensic engineering , environmental engineering , mechanical engineering , political science , law , inlet
This article discusses the Village of Westfield, New York's experience of using chemical cleaning to rehabilitate their system's 4‐in.‐diameter cast‐iron pipes. Topics covered include: methods for determining the necessary cleaning solution strength and approximate cleaning time; methods of communicating with consumers about the project costs, provision of bottled water during periods when the water would be shut‐off, and scheduling of water outages; the mobile recirculation unit (MRU) used at each section of the system; easy disposal of the biodegradable chemical cleaning solution certified by Scientific Systems Certification as well as NSF/ANSI Standard 60; the different processes of the cleaning cycle; use of a passivating chemical to line the pipe to prevent flash corrosion; leak detection and rehabilitation; and, increased water pressure with costs being significantly less than pipe replacement as a result of using this cleaning process.