Reducing infiltration from private sewer laterals

Seattle Public Utilities (SPU) undertook a pilot project in order to test how flood-grouting affects side-sewer infiltration. Funding was provided by a nonprofit scientific research organization. Flood grouting is a two-step process that seals large portions of a structurally sound sewer system simultaneously that are subject to minor cracking and joint leakage. The sections that were sealed had a 99% improvement in their exfiltration rates, based on measured exfiltration rates of the flood grouting chemicals.


  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos;
  • Pagination: pp 42-44
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01523114
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 9 2014 10:54AM