Posting a message to the forum will remove the above advertisement
  1. Hi, welcome to the new look - Login with your usual login details, or sign up if you don't already have an account. If you post just once, all the advertisements get automatically removed. We have some competitions coming soon, and lots of new feaures. 

Discuss flexi hoses with rubber washers cause legionella to form in the Water Regulations area at

  1. Inverness

    Inverness Plumber

    have you guys heard of the flexi hoses are being removed from all council houses in scotland due to the material that the washer is made from and some of the fibre washers too. it has been proved by scientists and tested by wras that the rubber washers and the fibre washers from a close up view. with a micro scope, has rough texture that legionella starts as a breeding ground.
    Last edited: Jan 14, 2016
  2. Inverness

    Inverness Plumber

    It is a legal requirement that flexible hoses are assessed by a competent laboratory for their compliance with BS6920: Parts 1 to 3. These tests assess the likelihood of the material being able to support microbiological growth and leach chemicals into the water with which they are in contact – chemicals which might either act as nutrients for bacteria, cause an adverse effect on the aesthetic qualities of the water (e.g. give it taste, odour, colour or turbidity) or be toxic to humans.
    Installers (plumbers) and Users (building managers) of water fittings are liable to prosecution for non- compliance with the Regulations. It is essential that unsuitable hoses are not used in wholesome water systems. Under the Regulations and Health and Safety legislation, the safeguard against prosecution for the use of unsuitable fittings leading to harmful effects on health is to insist on the use of fittings which have been assessed and shown to be satisfactory.
  3. ShaunCorbs

    ShaunCorbs Trusted Plumber GSR Top Contributor!!

    i call bull

    that means all boilers are done for then
  4. AlexGas

    AlexGas Plumber GSR

    Don’t think we can do much about tap washers now!?
    A few pints of beer – that’s all you need to keep safe! :D

    • Like Like x 1
    Last edited: Jan 14, 2016
  5. Geyser

    Geyser Plumber GSR

    I remember it being an issue in health care settings down here, there was a HTM on it somewhere. Ill try and find it. Think they just use regular documented flushing to overcome the problem. Its to do with the rubber lining on cheap flexible hoses, wras tested ones are ok.
  6. Geyser

    Geyser Plumber GSR

  7. lame plumber

    lame plumber Guest

    hospitals have had a purge on cheap flexis in the past due to the ability of bugs to breed in them, was good money for a couple of firms down here
Similar Threads - flexi hoses rubber Forum Date
Plastic pipe with flexihoses Plumbing Forum Apr 9, 2017
Fitting Kitchen Tap Flexi Plumbing Forum Jul 15, 2017
Flexible tap connectors breaking Plumbing Forum Mar 27, 2017
Glowworm Flexicom 30CX combination boiler Heat Exchanger problem? Central Heating Forum Feb 22, 2017
500mm flexible hose 15mm compression to M10 monobloc Fittings & Pipes Jan 27, 2017
Flexible hose... are these a requirement? Fittings & Pipes Nov 16, 2016
Glow worm flexicom 30cx Gas Safe Registered Plumbers Only Nov 10, 2016