Why Hot Water Circulation Failures Remain the Hidden Weakness in Legionella Risk Assessments and Where Remote Monitoring Fits In

Hot water circulation, or more accurately the absence of it, remains one of the most critical areas of focus for any competent Legionella risk assessor. Despite its importance, it continues to be overlooked in the majority of risk assessment documents produced across the industry. Alarmingly, this issue is not confined to inexperienced assessors; it appears… Read more »

Meet the Team: Tom Sullivan

At GMS, we’re proud to shine a spotlight on the people who help keep things running smoothly behind the scenes—and on the front lines. Today, we’re catching up with Tom Sullivan, one of our dedicated Water Hygiene Engineers, who’s been with us for the past eight months. Tom joined GMS eight months ago and hit… Read more »

Meet the Team: Lee Haggerty

This week, we’re putting the spotlight on one of our talented team members who keeps the wheels turning (and the pipes flowing) at GMS — say hello to Lee Haggerty! Lee joined GMS just over a year ago and has been a key part of our plumbing team ever since. As one of our skilled… Read more »

Meet the Team: Abi Rogers – From Admin to Engineer

At GMS, we’re proud to celebrate the people who make our work not just productive, but truly enjoyable. Today, we’re shining a spotlight on Abi Rogers, whose journey with us has been nothing short of inspiring. From Admin Desk to Engineering Sites Abi joined GMS in September 2023 on a 12-month contract, originally covering maternity… Read more »

Meet Martin – PPM Engineer

Length of service as of April 2023 – 12 months I have been at GMS for around 12 months now and during that time I have been working as a water hygiene engineer.  My day to day tasks are to carry out the planned preventative maintenance side (PPM) taking water temperatures, servicing expansion vessels ,calorifiers,… Read more »

Legionella Risk Assessments

We are now fully up and running with this service following a reduction in this service due to COVID closures. We have implemented a social distancing policy and procedure which includes the following 2 Meter distancing from your site personnel Gloves to be worn at all times. New gloves to be put on if we… 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 »