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Manholes Files

Case Study: Wet Well Waterproofing in the Bahamas a Money Saving Success

Published Year: 2024

  • On a sunny island in the Bahamas, a wet well for the local Utilitycompany was experiencing intense infiltration near the water well base due to malfunctioning pumps from the pump station. Infiltration was stopped, thousands of dollars saved.

Flyer: Curtain Grouting Checklist Guideline

Published Year: 2023

  • The following checklist has the equipment, tools, and materials to consider when completing a curtain grouting project

Brochure: Manhole Rehabilitation with Injection Grouts

Published Year: 2023

  • Manhole Rehabilitation with Injection Grouts

Case Study: North Carolina Utility Follows Through on Manhole Rehabilitation

Published Year: 2021

  • The Town of Wingate, NC Public Works Director Eugene Jones noticed two pump stations were running on average of four hours every day. However, during rain events, the pump stations would run up to 35 hours straight.

Magazine Article: Making the Grade - Manhole Rehab

Published Year: 2017

  • if may seem far-fetched that two former PE teachers would make abrupt career changes and build a multi-million dollar a year manhole rehabilitation business, but that's exactly what Kim and Lawrence Vallow did in 1982.

Technical Manual: Injection Hose Kit

  • Avanti International’s Injection Hose Kit is a preventative chemical grout injection system for the permanent sealing of cold and construction joints in concrete and voids between slurry walls and slabs.

Magazine Article: 'Grout First,' Right Answer for Sullivan's Island, SC

Published Year: 2016

  • Greg Gress, manager of sewer and water for Sullivan’s Island, S.C., just completed the community’s CMOM self-assessment of its collection system. The condition assessment clearly indicated 90% of Sullivan’s Island problem was infiltration and inflow (I/I)

2015 UCT Paper: Eliminating Infiltration Requires a Holistic Approach in Naperville, Illinois

Published Year: 2015

  • In April 2013, Chicago and its neighboring suburbs experienced a 100-year rain event resulting in extensive flooding, sewer system surcharges, and basement back-ups.

Product Guide: Urethane Grouts for Stopping Leaks

Published Year: 2015

  • Quick Reference Guide: Urethane Grouts for Stopping Leaks

Magazine Article: Chemical Grouting: An effective tool against groundwater infiltration

Published Year: 2014

  • Groundwater infiltration of sewer pipes is a common problem encountered by municipalities, especially those with aging infrastructure

Magazine Article: Efficient, Economical Grout Solution for Downers Grove

Published Year: 2014

  • Reducing sewer line I&I with grouting allows Downers Grove Sanitary District (DGSD) to avoid major repair expenses.

Technical Forum: Out of Sight But Not Out of Mind: Sealing Manholes with Polyurethane Grouts

Published Year: 2014

  • Five techniques to successfully sealing manholes using polyurethane grouts

Brochure: EGP Quick Reference Guide

Published Year: 2014

  • EGP Quick Reference Guide: How to Stop Stubborn Leaks with AV-202 and Oakum

NASSCO Tech Tips - Never Lose Man Hours on a Grouting Job

Published Year: 2013

  • Underground contractors, utilities and municipalities do big things well. It's the small jobs that can turn proftable projects upside down and lead to cost overruns.

NASSCO Spec: Performance Specification Guideline for Manhole Rehabilitation

Published Year: 2013

  • NASSCO Performance Spec for Manhole Rehab