Ten Tips for Plumbers

Between 2012 and 2014 there were 922 confirmed cases of Legionnaires’ disease in the UK alone. Here at SAFESOL we believe this is 922 too many, especially as Legionnaires’ disease can be prevented. With that in mind we have created a list of 10 tips for plumbers in order to help us in our war against Legionnaires’ disease.

  1. Always remember that Legionnaires’ disease can be associated with all water systems which create an aerosol. This includes hot and cold water systems, cooling towers and spa pools.
  2. A deadleg is a pipe with a blank end that water cannot flow through. These increase the chances of Legionella growth and should be always be removed. Pipework should be cut back to live water supply.
  3. Stagnant water provides ideal conditions to allow legionella bacteria to multiply. That is why it is important to remove dead legs and reduce tank capacity to 24 hours. It is also important not to install unnecessary cold water storage tanks and not carry out precommision cleaning too early.
  4. A little used outlet are taps, showers etc. which are used less than once a week. They could include assisted access shower rooms, school shower rooms, and cleaner’s stores.  Where possible these outlets should be removed, and cut back to live pipework. If this is not possible then outlets should be flushed through for 2 minutes after the temperature stabilises to reduce the risk of Legionella growth.
  5. Hot water cylinders should store water at 60°C and the return pipework should reach 50°C or above (55°C in health care premises). Where calorifiers are heated by solar energy it is important to ensure that water in the cylinder reaches at least 60°C for 1 hour each day. This may require an alternative heat source such as immersion.

    Shower creating an aerosol

  6. It is important to insulate tanks and pipework to prevent heat gain and loss. Good quality insulation such as the foil facing boards lasts and stays in place much longer than the cheaper insulation. Hot and cold pipework should not be insulated together as this can lead to heat gain in the cold water system.
  7. Cold water storage tanks should comply with the current water regulations: They should be no more than 24-hour storage, they should be constructed of a suitable material for example plastic or glass reinforced plastic, they should have a close-fitting lid with a breathable vent, they should have screened warning and overflows. The warning pipe should be below the level of the overflow, and there should be good cross flow in the tank.
  8. Constant dosing of a disinfectant can be used as a suitable method of legionella control instead of the traditional method of temperature control. This allows calorifier temperatures and energy costs to be reduced. EndoSan is a simple and easy disinfectant to use legionella control.
  9. EndoSan is a simple and easy to use disinfectant. It can be used to disinfect cold water storage tanks, calorifiers, thermostatic mixer valves, water softeners, mains pipework and showers. Several of SAFESOL’s customers are plumbers who use EndoSan for tank disinfection.
  10. TMVs should only be fitted as required. Their high surface area together with a warm water environment provides the ideal breeding ground for legionella bacteria.

Plumbers and legionella control

We hoped that you found our tips for plumbers useful We know that plumbers take pride in their work and rely on their reputation which is why using EndoSan will leave you confident that you’re using a highly effective disinfectant, keeping clients happy. And happy clients mean happy plumbers. And we love happy plumbers at SAFESOL.

If you have any questions about the benefits of EndoSan or would like some more information, then call SAFESOL today ON 0191 447 8008, alternatively email us at info@safesol.co.uk or through our contact page

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