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With recorded cases of legionella on the increase, we look at the role expansion vessels can play in minimising the risk of bacterial infection in water systems.

Health and Safety Executive (HSE) guidance, HSG274 Part2: 2014, has identified expansion tanks as a potential legionella risk due to low water flows or stagnation issues in hot and cold-water systems.
Read the full opinion piece on the attached PDF
Would like to hear other comments or concerns?


  • Expansion Vessels can reduce Legionella Risk.pdf
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