We now know that storing water at 110 F, as was called for in many energy conservation mandates in the 1970s, can lead to an increase in Legionella bacteria growth in the hot water storage and distribution systems, which could eventually lead to outbreaks.

We have learned much about controlling the growth and spread of Legionella bacteria in water systems. Health-care facilities are especially vulnerable. ASHRAE-compliant water management programs can reduce the risk for Legionella and other pathogens in their water systems.

To achieve comfort and efficiency in a hot water distribution system, many plumbing engineers are incorporating hot water recirculation systems into their designs. But to reap the benefits of such a system, balancing valves must be incorporated into design considerations.

IAPMO discussions for the 2021 UPC centered around dead legs, Legionella, water heater temperature control and water conservation.

“Connect, Collaborate and Advocate” to be held Nov. 5 to 8, with early bird registration discount available until July 31.

There has to be a different approach to combating Legionella development when designing plumbing and hydronics systems.

Members of the task group will work together to address the health and safety impacts water temperature.

In recent years, headlines blaring news of Legionella outbreaks and deaths in hospitals and other public buildings have been raising the alarm of owners and occupants alike about the risks of bacteria in both potable water systems and HVAC cooling towers.

During the May 15-18 meetings at the Ontario Doubletree Hotel, the committees acted on nearly 450 proposed amendments to the 2018 editions of the Uniform Codes.