Until the 1960s, mechanical engineers and plumbing designers specified hub and spigot cast-iron soil pipe joined with lead and oakum for drain, waste and vent systems in the vast majority of their commercial projects.

Denver Water’s new administration building incorporates a plant-based blackwater system and a rainwater system to conserve potable water. Implementing such strategies took water-efficient design to the next leveland did not come without challenges.

Hands-free automatic plumbing fixtures not only improve restroom aesthetics, but also create a safer, more sanitary environment. This is highlighted by the surge in the use of these fixtures during the COVID-19 pandemic.

Very few places remain on Earth where water can be consumed directly without filtration or chemical disinfection.

Armed with three COVID-19 shots and a flu shot, I was able to visit different cities once again and review climate solutions for buildings, transportation, microgrids and other power systems.

The American Society of Sanitary Engineering’s (ASSE) 1070 Standard, Performance Requirements for Water Temperature Limiting Devices is an industry standard for a point-of-use or in-line temperature-actuated mixing valve with a maximum temperature limit feature.