What Is BSRIA BG29 & BG50?

BG29 (Pre-Commission Cleaning of Pipework Systems) sets out best practice for cleaning commercial heating and cooling pipework before it is handed over. When new systems are installed, they contain: Mill scale from steel pipework Jointing compounds and flux residues Installation debris Construction dust and particulates If not properly removed, these contaminants: Block strainers and control… Read more »

Why Dirty Water Systems May Show No Detectable Legionella: A Closer Look at Bacterial Dynamics and Mutations

In water hygiene management, it’s not uncommon to encounter heavily contaminated water systems that, despite appearing ideal for Legionella pneumophila proliferation, return negative results for Legionella during microbiological analysis. These situations often raise questions about sampling accuracy, environmental suitability, bacterial competition, and the complex behaviour of microbial communities under stress. High TVC, No Legionella: What’s… Read more »

COVID-19 DORMANT WATER SYSTEM MANAGEMENT

COVID-19 & RELATED WATER MANAGEMENT ISSUES. We are in unprecedented times. None of us have ever imagined a time when our liberty and freedom would be a thing of the past. But here we are, on a temporary basis let’s hope. There are many properties up and down the country that are now sat dormant… Read more »

GMS Water Treatment

Phase 1 of a major clean, flush and re-dose of 4 large chilled water systems is underway at an R&D complex in Birkenhead is underway. Follow this page for a full case study into the works and see how GMS can help you at your site with the management and maintenance of your closed water systems…. Read more »

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What Is BSRIA BG29 & BG50?

BG29 (Pre-Commission Cleaning of Pipework Systems) sets out best practice for cleaning commercial heating and cooling pipework before it is handed over. When new systems are installed, they contain: Mill scale from steel pipework Jointing compounds and flux residues Installation debris Construction dust and particulates If not properly removed, these contaminants: Block strainers and control… Read more »

Le Mans Crescent Project!

Major Mechanical Installation Project Underway at Le Mans Crescent, Bolton We’re proud to be delivering a significant mechanical installation project at Le Mans Crescent in Bolton, and it’s fantastic to see the works progressing well as the building services infrastructure begins to take shape on site. This phase of the project represents a key milestone… Read more »

Thermostatic Mixing Valves (TMVs): Understanding TMV2, TMV3 and Your Legal Responsibilities

Thermostatic Mixing Valves (TMVs) play a critical role in controlling water temperature and reducing the risk of scalding in both domestic and commercial buildings. In higher-risk environments such as healthcare, care homes and education settings, correct valve selection, installation and ongoing maintenance is not just best practice – it is a legal and moral responsibility…. Read more »

How Passing TMVs Drive Legionella and Biofilm Formation

Passing TMVs create the exact conditions Legionella bacteria thrive in. The combined effects include: Once temperature control is lost, biofilm rapidly develops on internal pipe surfaces. Biofilm acts as: As biofilm thickens, it further restricts flow, worsening stagnation and creating a self-reinforcing cycle that accelerates colonisation. In many investigations of persistent Legionella positives, passing TMVs… Read more »