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Cold Water Storage Tank Commissioning

Cold Water Storage Tank Commissioning: Ensuring Safety and Hygiene

Neglected water tanks pose a high risk for spreading diseases, emphasizing the need for regular assessment and inspection. The proliferation of Legionella bacteria, particularly in tanks that have deteriorated over time, is the primary concern associated with water tanks. To prevent sediment build-up, it is essential to inspect, clean, and disinfect water tanks, adhering to the guidelines of ACoP L8.

Consequently, uncontrolled sediment acts as a breeding ground for bacteria and fosters contamination and growth. Let us help you understand the requirements and procedures for commissioning cold water storage tanks. With PTS, you can rest assured that we maintain optimal safety and hygiene standards.

Understanding the Risks of Neglected Water Tanks

Neglected water tanks present significant risks in terms of disease transmission. The most notable risk is the proliferation of Legionella bacteria, which thrives in stagnant water conditions, particularly within water tanks that have been left to deteriorate over time. These bacteria can cause severe illnesses, including Legionnaires’ disease. To safeguard public health and prevent outbreaks, it is crucial to address the condition of water tanks promptly.

We offer comprehensive legionella-related services – including risk assessments, and remedial action. You can find out more via the Legionella Contractors drop-down menu.

    The Role of ACoP L8 in Water Tank Inspections

    The Approved Code of Practice and guidance document, known as ACoP L8, plays a vital role in ensuring the safety and hygiene of water tanks. According to ACoP L8, it is necessary to conduct regular inspections to identify any issues that may compromise the integrity of the tanks and contribute to the proliferation of harmful bacteria.

    Additionally, ACoP L8 emphasises the importance of cleaning and disinfecting water tanks to prevent the accumulation of sediment, which serves as a prime breeding ground for bacteria.

    When is Cold Water Storage Tank Commissioning Required?

    Cold water storage tank commissioning is required in various scenarios to maintain optimal safety and hygiene standards. These include: 

    By commissioning cold water storage tanks in these circumstances, the spread of harmful bacteria can be effectively mitigated, safeguarding the well-being of individuals relying on the water supply.

    The Process of Clean and Disinfection

    Clean and disinfection services for water tanks are conducted in adherence to ACoP L8 and the procedures outlined in BS855468:2015. Here’s the process:

    Importantly, our cleaning process utilises silver-based hydrogen peroxide, which significantly reduces the volume of water that we need to discard compared to conventional methods. In situations where necessary, we may employ alternative chemicals, such as chlorine.

    Additionally, if needed, we conduct a full-system disinfection that covers all assets and pipe work. We carefully measure chemical levels at every outlet to ensure successful disinfection.

    Finally, to validate the effectiveness of the process, our laboratory conducts comprehensive tests for Total Viable Count (TVC), E. coli, chloroform, and Legionella as part of UKAS-accredited water sampling.

    What are the Advantages of Modern Commissioning Methods?

    The adoption of modern commissioning methods offers several advantages in ensuring water tank hygiene. One such method involves the use of silver-based hydrogen peroxide, which not only effectively sanitizes the tank but also significantly reduces water wastage.

    We use these methods because it is an environmentally conscious approach. It aligns with sustainable practices and demonstrates our commitment to resource conservation. By harnessing innovative techniques, the commissioning process becomes more efficient, reducing the impact on the environment while maintaining stringent hygiene standards.

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    Why Choose Pipe Testing Services for Cold Water Storage Tank Commissioning?

    At Pipe Testing Services, we understand the criticality of maintaining safe and hygienic cold water storage tanks. Our commitment to excellence and adherence to water authority specifications set us apart as a trusted provider in the industry. When you choose PTS for your cold water storage tank commissioning needs, you can expect the following benefits:

    Contact us using the following information:

    Phone: 01922 451646


    Address: Unit 27 Birchbrook Industrial Estate, Shenstone, Lichfield, Staffs, WS14 0DJ

    We are committed to delivering reliable, reputable services to ensure the safety, maintenance, and compliance of your water systems and pipes. Contact us now to discuss your needs or to schedule a consultation.


    Commissioning ensures the safety and hygiene of cold water storage tanks, preventing the proliferation of harmful bacteria and the spread of diseases. It helps maintain a reliable and clean water supply.

    Regular inspections are essential. ACoP L8 recommends at least annually, or as indicated by risk assessments, to identify potential issues and ensure compliance with safety and hygiene standards.

    Neglected water tanks can lead to the proliferation of Legionella bacteria, compromising water quality and increasing the risk of severe illnesses like Legionnaires’ disease. Regular maintenance is crucial to prevent such risks.

    Tests such as Total Viable Count (TVC), E. coli, chloroform, and Legionella testing are conducted to verify the effectiveness of the disinfection process. These tests provide valuable insights into water quality.

    Cleaning and disinfecting water tanks require expertise and adherence to safety standards. It is recommended to hire professionals like Pipe Testing Services to ensure thorough and compliant cleaning procedures.

    Yes, Pipe Testing Services operates nationwide, providing reliable cold water tank commissioning services to clients across the UK. Our team is capable of servicing various locations, ensuring that clients can access our expertise regardless of their geographical location.