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

The pictograms, designed by an industrial body of toilet makers, include those for 'strong flush,' 'bidet' and 'raise/lower the lid.'

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.

The new search includes thousands of relevant results from other ASHRAE sites such its bookstore, eLearning platform and Technology Portal.