The cleaning method selected for new PEX pipe installation can affect short-term drinking water quality | Zendy

Keven M. Kelley | Zendy; Alexandra C. Stenson | Zendy; Racheal Cooley | Zendy; Rajarashi Dey | Zendy; Andrew J. Whelton | Zendy

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The cleaning method selected for new PEX pipe installation can affect short-term drinking water quality

Author(s) -

Keven M. Kelley,

Alexandra C. Stenson,

Racheal Cooley,

Rajarashi Dey,

Andrew J. Whelton

Publication year - 2015

Publication title -

journal of water and health

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.482

H-Index - 59

eISSN - 1996-7829

pISSN - 1477-8920

DOI - 10.2166/wh.2015.243

Subject(s) - odor , environmental science , water pipe , water quality , waste management , pulp and paper industry , environmental engineering , toxicology , environmental chemistry , chemistry , engineering , biology , ecology , mechanical engineering , organic chemistry , inlet

The influence of four different cleaning methods used for newly installed polyethylene (PEX) pipes on chemical and odor quality was determined. Bench-scale testing of two PEX (type b) pipe brands showed that the California Plumbing Code PEX installation method does not maximize total organic carbon (TOC) removal. TOC concentration and threshold odor number values significantly varied between two pipe brands. Different cleaning methods impacted carbon release, odor, as well the level of drinking water odorant ethyl tert-butyl ether. Both pipes caused odor values up to eight times greater than the US federal drinking water odor limit. Unique to this project was that organic chemicals released by PEX pipe were affected by pipe brand, fill/empty cycle frequency, and the pipe cleaning method selected by the installer.

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