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.

AWWA M22 is a manual of water supply practices that covers the basic principles and methods of water distribution system design and operation.

The Water Demand Calculator has been adopted in several states and cities, including California and Seattle, and is expanding peak flow rate calculations into commercial buildings. The future looks bright as version 3.0 is in the works for commercial buildings.

"Plumbing Pipe Sizing: Why it is Important," will offer .15 CEUs for those who attend. 

The latest updates in Version 3.0 of the calculator include the addition of more than 50 new pipe sizes, methanol as a fluid choice for geothermal designs, sodium chloride and calcium chloride brine solutions as fluid choices for chilled water, and the new Static Water Column Pressure function. 

“Governmental members” may desire a public perception of having “no vested financial interest in” the development process. But there is no requirement or mandate for them to be transparent in avoiding conflicts of interest.

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.

I called the plumber because there’s an immediacy to plumbing; and I’m old enough to know that it’s best for me not to touch pipes. To each his own trade.

The primary cost savings are associated with reduced diameter water service entrances, interior cold water mains/branches, interior hot water mains/branches, fittings, labor, and appurtenances.