Shower Descale and Disinfection

Guidelines for compliance

The requirement for Legionella control in hot and cold water systems is detailed in the HSE document ‘Legionnaires’ disease: The control of legionella bacteria in water systems’. This document, often referred to as ACoP L8, is the approved code of practice and guidance on regulations. Hot and cold water systems are then further covered in HSG274 Part 2: ‘The control of legionella bacteria in hot and cold water systems’.

In order to control the growth of Legionella bacteria within hot and cold water systems, it is a requirement to descale and disinfect shower heads, hoses and other aerosol emitting devices, such as spray taps, on a quarterly basis. Frequency may need to be increased in hard water areas to adequately control the formation of scale.

Water Hygiene Shower Descale and Disinfection
Record keeping and the building defects register

It is essential that careful records are kept to evidence that your showers and spray taps are being descaled and disinfected as required. In addition, the chemical used for this task must have its COSHH safety data and efficacy data for combatting Legionella bacteria.

Where issues are identified, such as exceptionally heavy scale deposits or poor waterflow to showers, identification of the cause needs to be undertaken and the defect recorded in the building defects register.

The defects register must be kept up to date with all incidents of failures to achieve levels detailed in the control scheme. Where a defect is recorded, it should give the date it was identified, who identified it, corrective action taken to resolve the defect, when the defect was corrected and by whom, and if any other action is required to prevent repeat occurrences.

Rock Compliance has the skills and experience necessary to carry out your shower descaling and disinfection.  Our expertise makes it easy for your building to be compliant, in line with all relevant guidelines. Our nationwide network of offices and engineers ensures that we are always close by when you need us.

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Whether it is an issue of compliance, an investment decision, or you are just not quite sure whether your existing provider is giving you what you want, please contact us.  We will be happy to give you advice on how to create low risk, compliant water systems, ensuring spend is minimised and predictable.

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