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Water Hygiene (Legionella) and safety

Great Places has a legal duty to ensure that the risk of exposure of our customers to legionella is properly assessed and controlled. We are committed to working alongside customers to ensure you are protected from Legionnaires’ disease.

Legionnaire’s Disease – What you need to know

Legionnaires’ disease is a form of pneumonia. Anybody can catch it, but it is more likely to affect those who are susceptible because of:

  • age;
  • illness;
  • immunosuppression;
  • or smoking.

Most cases have been in people aged between 40 and 70.

How do people get Legionnaires’ disease?

Legionnaires’ disease is contracted by inhaling a small water droplet which can be suspended in the air, known as aerosols. Aerosols containing the legionella bacteria will pose a risk to susceptible individuals, infection is linked to susceptibility.

Certain conditions increase the risk from legionella:

  1. The water temperature in all or some parts of the system is between 20-45 °C, which is suitable for growth.
  2. It is possible for water droplets to be produced and therefore be dispersed.
  3. Water is stored and/or re-circulated.
  4. There are deposits that can support bacterial growth, such as rust, sludge, scale, organic matter and biofilms.

How to prevent Legionella

Legionella bacteria can be found in most water systems. The section below shows what you can do to help make sure bacteria remains at an acceptable level:

  • If taps or showers in a property are not used for one week or more, each tap and shower should be run or flushed for two minutes.
  • If your property is empty for long periods of time i.e. over two weeks. This may be due to a long hospital admission, extended holiday periods or any other reason then the hot and cold taps and shower should be flushed and showerhead cleaned and disinfected.
  • Showerheads should be descaled and disinfected on a regular basis (every three months).
  • The boiler / hot water heater temperature should never be reduced lower than 55 degrees Celsius.

If you have any concerns or require any additional advice regarding water hygiene please contact us.