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Legionnaires Disease

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Posts: 183
VIP Member
Topic starter
(@flannery_k)
Estimable Member
Joined: 13 years ago

Many may be aware, but just in case.........

all taps/showers etc should be run at least once a week for several minutes. the mortality rate is approx 10%.

holiday homes unoccupied for some time, are a potential risk. ie unless actions above are followed. e.g. stagnant water in shower head, person gets into shower, a confined space, turns on water, it is then aerosolised and person may inhale........

ie if turning on showers in hotel rooms, especially ones that seem damp or not to have been recently occupied, 1st thing to do before children elderly etc enter, is flush toilets (with lid down) and run shower for several minutes, ie air the room. turn away as you turn on etc....

for more see

http://www.hpa.org.uk/web/HPAwebFile/HP ... 4089027886

5 Replies




Posts: 1219
VIP Member
(@itsmeagain)
Noble Member
Joined: 14 years ago

Blimey! Thanks for this flannery_k.

We leave our property unattended for months so I think I might start running the water when we arrive after a break.

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Posts: 4248
VIP Member
(@lobito)
Famed Member
Joined: 14 years ago

Some electric heating water systems raise automatically the temperature up to 60°C or so once a week because of that.

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Posts: 183
VIP Member
Topic starter
(@flannery_k)
Estimable Member
Joined: 13 years ago

Microbiology is complex and way beyond me but from my reading...

both of these quotes are from p.2.

Where can legionella multiply?
1. Hot and cold water systems including storage tanks/cisterns.
2. Any system or part of a system where the water is warm-between 20°C and 45°C, and particularly when above 30°C

Keep hot water hot and circulating at all times: 50C - 60C (too hot to put hands into or under for more than a few seconds)

ie at least running the taps/showers/toilets etc once a week is a step in the right direction....and probably as much as most can achieve.

I will check with some one on Monday, but I think the temperature would have to be cold or to be a constant 50-60C to work, otherwise you are back to the old faithfuls chlorine etc....

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Posts: 766
VIP Member
(@notlongnow)
Prominent Member
Joined: 13 years ago

There was also a recent story about legionnaires from car windscreen water. They found a high instance of the disease in long distance lorry drivers. ALWAYS put screen wash in your windscreen water and shut the window before you spray.

It sounds daft but it it is true. My wife accidentally squirted me with the windscreen water on a hire car a couple of months ago and it freaked me out having read the story: http://www.bbc.co.uk/news/10293519

B

www.movingtoportugal.org
www.foodandwineportugal.com

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