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How little-used outlets and stagnant water quietly create problems in buildings Walk around almost any building and you’ll find them. The shower in a changing room nobody uses anymore. The sink in a meeting room kitchen staff forgot existed. The tap in a spare office, an unused hotel room, or a healthcare room waiting for…
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Thermostatic Mixing Valves (TMVs) play an important role in modern water systems. They are designed to reduce the risk of scalding by blending hot and cold water to a safe outlet temperature, particularly in higher-risk environments such as healthcare premises, care homes, schools, hotels, and public facilities. However, while TMVs improve user safety, they can…
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Cold water storage tanks are a common feature in many commercial and older buildings across the UK. When properly maintained, they play an important role in supplying water throughout a system. But when things go wrong, they can quickly become one of the highest Legionella risk assets on site. So, when does a cold water…
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When it comes to managing Legionella risk, one of the most overlooked but essential elements is having accurate and adequate water system schematics. Many small businesses and landlords either: And that’s where problems begin. 🔍 What Is a Legionella Schematic? A Legionella schematic is a simple drawing that shows how water moves through your building.…
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Introduction Legionella bacteria can pose a serious health risk in water systems — especially in buildings with complex plumbing. One of the most effective ways to control it is temperature control. But what temperature actually kills Legionella? In this guide, we break down the exact temperatures you need to know, based on UK guidance, and…
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One of the most common issues I come across when carrying out Legionella risk assessments is surprisingly simple: There is no written scheme of control in place. The site may have: …but no clear, structured plan explaining how Legionella risk is actually being managed. And that’s a problem. What Is a Written Scheme of Control?…
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Legionella risk assessments are a legal requirement for many businesses in the UK — yet in practice, they’re often misunderstood, poorly managed, or treated as a one-off exercise. Over the years, I’ve carried out assessments across a wide range of sites — from offices and schools to healthcare facilities and large commercial buildings — and…
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Introduction Managing Legionella risk isn’t just a legal requirement — it’s a critical part of protecting building occupants and maintaining safe water systems. For landlords, facilities managers, and duty holders, keeping accurate records is essential. That’s where a Legionella compliance logbook becomes invaluable. What Is a Legionella Compliance Logbook? A Legionella compliance logbook is a…
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A Simple Oversight… But a Common Risk During a recent site visit, I came across something that’s often overlooked — a hose left permanently connected to a tap. At first glance, it might seem harmless. After all, hoses are used regularly for cleaning, maintenance, or general site tasks. However, from a water hygiene and Legionella…
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Educational buildings contain a wide variety of water systems, from simple wash basins and staff kitchenettes to complex laboratories, cooling equipment and student accommodation. Because these systems operate under different conditions and usage patterns, effective Legionella control is essential for schools, colleges and universities. Educational facilities also experience seasonal changes in occupancy, such as school…