Scientists hypothesize a connection between low flow rates and outbreaks of waterborne diseases such as Legionnaires’ disease, warns Plumbing Manufacturers International.

Through the instructor-led online courses, industry experts present three-hour sessions on such other HVAC&R topics

In his new role, Purkiss leads NSF International's global water programs, including certification programs for products used in municipal water treatment, water distribution, residential drinking water treatment, plumbing, pools and spas, and wastewater treatment.