3.6 LEGIONELLA

Legionella is a bacterium that can grow in stored or stagnant water, under certain conditions. Inhalation of infected spray or droplets of water vapor can result in Legionnaire’s disease. This is a pneumonia that may be mild and flu-like, but can be more serious, and sometimes fatal. Early treatment with the correct antibiotics is effective in most cases.

We follow a Health and Safety Executive approved Code of Practice, carrying out regular inspection and water safety testing of shared water systems in blocks of flats. It is unlikely that you will be at risk from Legionella bacteria in your home water system as mains supply water is treated by the water companies. Renewal of stored water in cylinders or tanks is frequent in occupied homes, so bacteria does not have the opportunity to grow.

The following precautions are advisable to avoid the possibility of Legionella:

• Ensure all water storage tanks have tightlyfitting covers in place

• Regularly descale and disinfect taps, shower heads and hoses

• Ensure all thermostats on stored hot water cylinders are set to 60° C or above

• If you leave your home for a holiday or a long period of time, drain off and refill any stored water tanks when you return, before first use

• Flush showers and taps including outdoor taps and hoses for two minutes following any period of non-use, including holidays

• Be mindful of water butts in your garden and use the water regularly