May 2023 Vol. 28 No. 5

Tech Tips

Tech Tips: Manhole inspection technologies

By NASSCO Member David Hamberlin, Hydromax USA

(UI) — If you attend a wastewater conference or read any sewer industry magazine, you will undoubtedly see multiple technologies for inspecting sewer manholes or underground structures. Each one has its main salespoints or technologies, but what are they providing you? How can you utilize these technologies to streamline and improve your inspection program?

The first question prior to seeking out any new technology is what do you want the deliverable to provide, and how do you plan to utilize this information? The answer to these questions will help you when engaging in conversations with technology or service providers. Are you mainly concerned with a visual inspection of the structure, or do you want not only the visual inspection, but also the ability to measure items like pipe sizes, depths, and defects at a later date? This decision will have an impact on the equipment or inspection cost for the project.

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