May 06, 2025
4 min read
The Real Problem: Legionella Risk in Building Water Systems
Legionella bacteria thrive in water systems when temperatures hover between 20-45°C and water flow is low or stagnant. In 2023 alone, 604 confirmed cases of Legionnaires’ disease were recorded in England and Wales, showing this isn’t a theoretical problem – it’s happening right now.
For BMS contractors and systems integrators, understanding this risk is essential. Building managers are legally responsible for Legionella prevention under the Health & Safety at Work Act 1974 and ACoP L8 regulations. Non-compliance can lead to severe consequences, as seen in the 2002 Barrow-in-Furness outbreak where inadequate cooling tower maintenance resulted in 178 cases, 7 deaths, and £1.5 million in compensation.
Traditional Monitoring Methods Fall Short
The traditional approach to Legionella prevention involves manual temperature checks and documentation. This method creates several problems:
- Inconsistent monitoring schedules
- Missed readings due to staff changes
- Incomplete logs and documentation
- Time-consuming manual processes
- Expensive third-party services
- Difficulty monitoring remote buildings
Manual monitoring isn’t just inefficient – it’s unreliable for meeting compliance requirements.
The Smart Solution: IoT Water Monitoring
Forest Rock has partnered with Quandify and Alliot Technologies to create a comprehensive Legionella prevention system using IoT technology. At the heart of this solution is the CubicMeter – a non-invasive, clamp-on device that monitors water temperature and flow in real-time.
The CubicMeter offers several key advantages:
- No pipe cutting or plumbing required – simply clamp onto existing pipes
- Works with copper, chrome, plastic, and multi-layered pipes (15-25mm diameter)
- Up to 98% accuracy in temperature and flow measurements
- 10+ year battery life
- Leak detection capabilities (40% of insurance claims are leak-related)
- LoRaWAN connectivity for wireless data transmission
Real-World Success: Loughborough University Case Study
We recently deployed this solution at Loughborough University’s student accommodation, where unused taps and showers created Legionella risk factors. The implementation was straightforward:
- Site survey and LoRaWAN gateway installation (a single gateway covered a 22-story building)
- Installation of CubicMeter sensors on water pipes
- Integration with the existing BMS via BACnet
The results were impressive:
- 100% prevention of Legionella risk through continuous monitoring
- 24/7 data collection with real-time alerts
- Zero disruption to students during installation
- Complete compliance with water safety regulations
Why This Matters to BMS Contractors and Systems Integrators
As regulations evolve, your clients will increasingly need smart water monitoring solutions. By offering this technology, you can:
- Help clients achieve 100% compliance with Legionella regulations
- Reduce their operational costs by eliminating manual checks
- Provide real-time monitoring and automated reporting
- Create new revenue streams through IoT integration
- Differentiate your services in the competitive BMS market
The system is designed for easy integration with existing building management systems. Whether your clients need a standalone solution or integration with their current BMS, the LoRaWAN technology makes it possible.
Future-Proofing Your Offerings
The future of water safety in smart buildings will increasingly rely on:
- IoT sensors for continuous monitoring
- AI and machine learning for predictive risk assessment
- Automation for flushing systems and leak detection
- Digital compliance reporting
By partnering with Forest Rock now, you’ll be positioned to offer these advanced solutions as regulations continue to tighten.
How Forest Rock Can Support You
Our team provides end-to-end support for systems integrators and BMS contractors:
- Solution design and project planning
- Hardware supply through our partnership with Alliot Technologies
- Installation support and system configuration
- BMS integration expertise
- Ongoing technical support
We handle the IoT complexity so you can focus on delivering value to your clients.
Take the Next Step
Don’t wait for your clients to face compliance issues or, worse, a Legionella outbreak. Contact our team today to learn how you can add smart water monitoring to your service offerings.
Together, we can help building managers protect occupants, reduce operational costs, and stay compliant with water safety regulations.
Aleem Aftab
Aleem Aftab is a dynamic tech enthusiast and innovative leader at Forest Rock, specialising in IoT connectivity and smart solutions. With a deep passion for LoRaWAN technology and a focus on the Building Management Systems (BMS) industry, he designs tailored solutions that align with specific customer needs. Aleem also excels at managing key accounts. His strategic vision and hands-on expertise, honed through roles as a Solutions Manager and IoT Specialist, consistently drive growth and cutting-edge implementations. Dedicated to continuous learning, Aleem pursues tech-related projects and certifications and is always exploring new ways to innovate and inspire.
