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Manholes Files

Magazine Article: Comprehensive, Pro-Active Grouting Program Produces Dramatic Reduction of Wastewater Volume and Treatment Costs

Published Year: 2006

  • Sewer system management in Newtown, PA credits use of a new, comprehensive, pro-active chemical grouting program rehabilitation by minimizing infiltration from pipe and joint failure.

Magazine Article: Trenchless Rehab from the Engineer's Perspective

Published Year: 2006

  • Sewer rehabilitation programs tend to fall into two main categories: reducing peak infiltration-and-inflow and structural failures

Reports on the Longevity and Effectiveness of Chemical Grouting of Sewers

Published Year: 2005

  • This brochure is intended to document that chemical grouting is effective and long lasting. The case studies contained herein have been taken from numerous engineering and municipal publications.

White Paper: Two Dimensional Model Study on Infiltration Control at a Lateral Pipe Joint Using Acrylamide Grout

Published Year: 2005

  • In this study, A table top lateral joint model was used to investigate grout movement through soil, when sealing sewer pipe leaks at lateral joints by grouting.

Magazine Article: Lateral Sealing in Wisconsin Provides Opportunity for Innovation

Published Year: 2005

  • The Village of Brown Deer, Wisconsin, just wanted to address an ongoing problem in one of its residential subdivisions that resulted in high inflow and infiltration at one of its interceptor sewers as far back as 1996.

White Paper: Methods to Control Leaks in Sewer Collection Systems

Published Year: 2004

  • In recent years, federal and state regulations and mandates to reduce sanitary sewer overflows (SSOs) have resulted in requiring better maintenance and operating practices for wastewater utilities.

Magazine Article: Stopping Infiltration with Chemical Grouting

Published Year: 2003

  • The U.S. Environmental Protection Agency credits manholes with contributing as much as 40 percent of infiltration into sewer systems.

Magazine Article: Sewage Pouring into Lakes, Streams

Published Year: 2002

  • SSO 700 is an unremarkable spot. Just a pipe, hidden by trees and brush, emptying into Mill Creek near downtown Cincinnati.

Magazine Article: Municipalities Use Chemical Grout to Stretch Sewer Rehabilitation Budgets

Published Year: 2000

  • Public works professionals maintain their facilities with the funds available rather than the funds needed. That situation is not likely no change, but some professionals have learned to stretch their pipeline rehab budgets further than ever before.

Case Study: Borough of Downington Stops Infiltration (1999)

Published Year: 1999

  • Like most towns or cities with public sewer systems, Downingtown was experiencing high amounts of inflow and infiltration (I & I).

Magazine Article: Save Money, Seal Service Laterals with Chemical Grouting

Published Year: 1997

  • The more we learn about our sewer systems, the more we discover how much customer service lines contribute to the expensive problem of groundwater infiltration.

Magazine Article: Solving Trunk Sewer Installations Across Growth Faults

Published Year: 1996

  • The City of Houston has two unique grouting projects in place that hold promise to support trunk sewer lines installed inside primary-lined tunnels crossing faults.

Magazine Article: How to be Assured of a Quality Grout Project

Published Year: 1996

  • Chemical grout has been used successfully for more than 30 years to stop leaks in sewer systems. However, not all installations have been equally successful.

Magazine Article: Re-Emergence of Chemical Grout

Published Year: 1995

  • Recent studies and over 40 years of experience indicate that America's first trenchless technology is still the best, most effective, long-term defense against infiltration.

Magazine Article: How to Plan a Chemical Grout Program

Published Year: 1995

  • How to plan your chemical grouting program: Most infiltration enters sewers through 1. Manholes, 2. Pipe Joints and 3. Service Connections and the first few feet of the service line.