James Dipping: Engineer Viewpoints

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This article revisits smart plumbing systems and the need for our industry to adopt monitoring and automation strategies like those in HVAC for improved efficiency. At the recent ASPE Convention in Columbus, OH, I discussed how integrating intelligence into plumbing can significantly enhance building occupant safety.

Sustainability in commercial plumbing focuses on modern pipe sizing to reduce material use and Legionella risk. Efficient layouts and lower-carbon materials like PEX and recycled PVC can lower greenhouse gas emissions, while improved equipment efficiency and training help reduce operational and embodied carbon emissions.

Encountering the Blowhard in any industry is common. I recently came across one and thought it was worth writing about.

When a plumbing engineer receives the design of a health care building — our minds gravitate to designing the system to optimize all the different considerations I mentioned above — with the fixture layout the architect has developed. But what if the layout changed? What if the amount of fixtures were reduced? 

How are you polishing your technical skills? How are you taking those next steps in your career? How are you positioning yourself for new opportunities? For me, it’s in-person, in the office.

As an engineering manager, I have a responsibility to maintain a high level of quality in our “product.” But it’s my opinion that consulting engineers don’t really have a product. You might counter with — drawings and specifications are our product, are they not? Yes and no. Allow me to explain.

My last two columns discussed both chemical and non-chemical additives or technologies that I treat as “must consider” for plumbing engineers in their design practices to reduce the risk of Legionella bacteria developing in the domestic water system. As I mentioned, these topics might not be a code minimum requirement, but as an engineering community, we have a responsibility to uphold the health and safety of the public. Therefore, we should discuss these technologies with our clients for many different building types we come across in our design.

In my January column, I began a series focused on chemical and non-chemical additives or technologies that I treat as “must consider” for plumbing engineers in their design practices to reduce the risk of legionella bacteria developing in the domestic water system.

Many of the topics I have discussed in my column to this point have been about temperature considerations within the supply and return system based on recommendations in the community and right-sizing domestic water piping to reduce the overall volume of water in the building’s piping system.

There is a battle going on in the industry when it comes to domestic water distribution systems, and it lies in how plumbing engineers size domestic water piping. System longevity, pressure drop, water age, noise and building codes will influence the approach taken in sizing a domestic water system.