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Background
A prestigious UK University,home to a blend of Victorian and Edwardian buildings,was facing escalating water hygiene challenges. Years of architectural evolution had left a legacy of complex plumbing, including inaccessible dead legs and redundant pipework. Despite robust water management protocols, high Legionella counts persisted, particularly in hard-to-reach areas.
The University engaged our team to deliver a safer, more sustainable solution,one suitable for educational environments where disruption must be minimal and risk kept low.
The Challenge
The scale, age, and intricacy of the estate made source tracing impractical without major structural intervention. Biofilm accumulation in stagnant areas was strongly suspected, and existing disinfection measures were no longer sufficient. The university needed a solution that could effectively address these deep-rooted issues,without introducing hazardous chemical handling or excessive maintenance.
The Solution
The Genox system was installed to deliver a continuous secondary disinfection solution using hypochlorous acid (HOCl) generated on-site from salt, water, and electricity,eliminating the need for chemical drums or deliveries. This made it a gentler, safer and more practical choice than traditional chlorine dioxide systems.
Installation Highlights:
- Dosing configuration was optimised by locating it at the main tank, ensuring more even distribution
- Pump upgrades improved biocide reach across legacy networks with inconsistent flow
- A staged improvement in water quality was observed, aligning with expectations in complex, aged systems
Outcome & Impact
- Marked reduction in bacterial counts, supporting long-term compliance
- System flexibility allows for proactive adjustments,particularly during academic holiday periods
- End-user confidence and safety improved, with ongoing satisfaction reported by site teams
- Success at this university has since influenced other applications, including a large hospitality venue with similar infrastructure