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Smoke testing is a common diagnostic tool used to locate sources of inflow and infiltration in a sewer system.
Smoke testing has been around for many years, but little information is available to help municipalities understand
what to expect during such testing. How many defects will I find? What type of defects will be encountered?
How long will it take to complete? How many homes and businesses will I smoke out? How many 911 calls will my
Fire Department receive? How do I handle public relations? This paper presents a case study that evaluates and
expands upon these issues based on facts, figures, and lessons learned from 1,000,000+ ft of smoke testing recently
completed in Huntsville, Alabama. The results provide guidance for sewer managers and engineers to better understand
what to expect during smoke testing and suggestions to better educate the public and other City departments.
Knowing what to expect can improve overall project management and public relations for more efficient smoke testing projects.
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