We struggled with this one too, but I'll pm you a link to one supplier we identified.

Others may be available - we just haven't found them yet.

Small units should turn over water quickly and not store for too long, therefore leading to a lower risk.
Tanks should be inspected - for dirt and debris. Store hot water for longer, turn over cold similar. if on demand hot and cold risk should be low.
If more required send an email and will respond with more.

quote=matelot1965]Here is a lesser known way to catch legionnaires disease which is applicapble to domestic properties

http://www.fchornet.com/...ing-gardening-h1739.html

Stick to the peat compost, much safer option! Legionella obtained from peatmoss is a different strain to that found in water systems. Generally passed from hand to mouth. Simple precautions can prevent infection such as good hygiene practice when handling materials such as composts with a rich wood content. It would appear that it mostly affects those who are immunosuppressed, similar to asperguillis.
Kevin

Legionella is a bacteria that can be found in any water system. The advice given from the HSE (L8 ACOP's) although not specific to Domestic Properties is good information and advice to use.
Just apply it to the home.