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May 10, 2023

The Full Guide to Legionella Water Filters

A Legionella water filter is a type of water treatment system that uses various filtration methods to remove and reduce Legionella bacteria in water systems. They are used alongside other Legionella control measures in various settings, including healthcare and industrial facilities. 

Legionella water filters are subject to regulatory requirements and must be installed and maintained by qualified professionals according to UK legislation and guidance from authorities such as the Health and Safety Executive and the Water Management Society.

This specialist guide from accredited Legionella experts takes you through everything you need to know about water filters for Legionella, the different types, how to use them, your legal responsibilities, and other control measures you may need.

What Is a Point-of-Use Water Filter for Legionella?

A point-of-use water filter for Legionella is a type of water filtration system that is designed to be installed at individual points of use, such as at a tap or shower head. These filters work by using various filtration methods to capture and remove Legionella bacteria from the water, reducing the risk of exposure to the bacteria. 

It is important to note that point-of-use filters should be installed and maintained by qualified professionals in accordance with the latest legislation and guidance from relevant UK authorities, such as the Health and Safety Executive and the Water Management Society.

How to Use Point-of-Use Water Filters for Legionella

To use a POU water filter for Legionella, you should first determine the appropriate location for installation, which may vary depending on the specific water system and the level of risk for Legionella exposure. The filter should be installed by a qualified professional in accordance with the manufacturer’s instructions.

Regular maintenance of POU filters is also necessary to ensure their continued effectiveness in removing Legionella bacteria. This may include replacing filter cartridges and regularly disinfecting the filter housing to prevent bacterial growth.

What Are Disposable Legionella Water Filters?

A disposable Legionella water filter consists of a disposable filter cartridge that is installed within a water system, typically at the point where water is drawn or used. The filter cartridge contains a filtration medium, such as activated carbon or ceramic, that captures and removes Legionella bacteria from the water as it passes through the filter.

Disposable Legionella water filters are commonly used in situations where Legionella control measures are needed on a short-term or temporary basis, such as during construction or maintenance work on a water system. They are also used in situations where it is not feasible or practical to install a permanent Legionella water treatment system.

What Are the Regulatory Requirements Surrounding Legionella Water Filters?

In the UK, there are regulatory requirements surrounding Legionella water filters to take note of, including those used for point-of-use applications and for larger water systems. These requirements are in place to ensure the safety and efficacy of Legionella control measures.

For point-of-use water filters, such as those used in healthcare facilities or domestic settings, there are no specific regulatory requirements in place. However, it is recommended that these filters be regularly maintained and replaced according to the manufacturer’s instructions.

For larger water systems, including those used in industrial facilities or commercial buildings, there are regulatory requirements in place for Legionella control measures. These requirements are outlined in the Approved Code of Practice (ACOP) L8 and the Health and Safety Executive’s guidance document HSG274. They include requirements for Legionella risk assessments, regular monitoring and maintenance of water systems, and the use of appropriate Legionella control measures, such as water filtration systems.

Further Legionella Control Measures

It is important to note that while Legionella water filters can be effective in reducing the risk of Legionella exposure, they should not be relied on as the sole control measure.

Legionella management should include:

  • Regular Legionella risk assessments: Regular assessments of your water systems will help identify any potential sources of Legionella growth or contamination, allowing for swift action to be taken to address any issues.
  • Temperature monitoring: Monitoring the temperature of your water systems can help identify potential areas of risk for Legionella growth, and can allow for prompt action to be taken to mitigate the risk.
  • Management of stagnant water: Stagnant water can provide ideal conditions for Legionella growth, so it is important to ensure that all water in your system is kept moving regularly.
  • Staff training and awareness: Ensuring that all staff are trained in Legionella awareness and control measures can help prevent the growth and spread of Legionella bacteria, and can ensure that any potential risks are identified and addressed promptly. 

Keep Your Water Systems Safe with Guardian Hygiene Services

Don’t risk your health or your business’s reputation by neglecting Legionella control. At Guardian Hygiene Services, we’re committed to providing you with a comprehensive suite of Legionella control solutions, including Legionella risk assessments, water system cleaning and disinfection, and the installation and maintenance of Legionella water filters. 

Contact us today to speak with one of our specialist advisors and find out how we can help you keep your water systems safe, compliant, and free from Legionella bacteria. Trust the experts at Guardian Hygiene Services – your safety is our top priority.

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