Sources of legionella in commercial buildings other than water systems
Microbacterial growth is not only a problem in hot and cold water systems and cooling towers but also in many other applications in commercial buildings such as water fountains, spas, swimming pools and fruit and vegetable moisturising systems.
Sprinkler alarm valve
An alarm valve prevents a reverse flow of water from the installation into the fire-pump room, but in case a fire sprinkler is activated (opened) due to fire, the alarm valve will open and permit water flow into the system.
Sprinkler distribution pipework
The sprinkler pipework distributes the fire suppression media into the building compartments. The pipe system design must be in compliance with the specifications described in the installation standard for fire sprinkler systems.
Stainless steel 1407
Stainless steel is chromium containing steel alloys, which improves the corrosion resistance of stainless steel. The minimum chromium content in standardised stainless steel is 10.5%.