HDPE vs. Concrete: A Comparison of Manhole Ring Materials Across North America, municipalities have a decision to make regarding the manhole rings used in their infrastructure. [...]

Combating Traffic Impact with HDPE Manhole Rings There’s a major problem with the traditional concrete rings used to build manhole chimneys — they have a short [...]

Why Solving the Inflow & Infiltration (I&I) Problem Requires a Change in Thinking   Albert Einstein famously said, “Insanity is doing the same thing over and [...]