A public swimming pool in the North West of England has significantly reduced its energy consumption and ongoing maintenance demands after refurbishing its circulation pumps using LOCTITE® PC 7255, a protective epoxy coating designed to combat corrosion and wear in chemically aggressive environments.
Like many public swimming pools, the facility operates continuously and relies on high-capacity circulation pumps to maintain water quality, hygiene standards and bather comfort. These pumps are exposed to chlorinated water around the clock, placing constant stress on internal metal surfaces. Over time, corrosion and erosion had developed inside the pump casings, reducing efficiency and increasing energy consumption.
As internal surfaces became rougher, turbulence increased and more power was required to maintain the required flow rates. This not only drove up electricity costs but also increased mechanical stress on the pumps, raising concerns around reliability, unplanned downtime and long-term maintenance budgets.
With rising energy prices and increasing pressure to improve sustainability performance, the pool operator sought a solution that would restore pump efficiency without the disruption and cost associated with replacing major equipment.
During planned maintenance, the decision was taken to restore the existing pumps using LOCTITE® PC 7255. The ceramic-filled epoxy coating was applied to the internal metal surfaces of the pump casings, ensuring a smooth profile and providing long-term protection against corrosion, erosion and chemical attack caused by chlorinated water.
Once returned to service, the refurbished pumps operated more efficiently, requiring less energy to circulate the same volume of water. Reduced internal resistance helped lower power demand while also reducing wear on internal components, supporting more stable operation over time.
Performance was monitored over a 12-month period following the refurbishment. Each 15 kW circulation pump delivered energy savings of approximately £2,500 per year, alongside a reduction of around four tonnes of CO₂ emissions annually. The improved efficiency also reduced ongoing maintenance requirements, helping to minimise disruption to pool operations.
With three pumps refurbished at the site, the total annual saving reached £7,500, while carbon emissions were reduced by approximately 12 tonnes per year. For a facility operating on tight budgets, the upgrade delivered a clear return on investment and helped future-proof critical infrastructure.
Daniel Aspey, Sales Engineer at LOCTITE said, “swimming pool environments are particularly demanding for mechanical equipment, especially where pumps are exposed to chlorinated water for long periods. Projects like this show how protective coatings can restore efficiency, reduce energy use and extend equipment life, helping operators manage costs while supporting sustainability targets.”
The project demonstrates how proactive maintenance strategies can play an important role in improving the operational efficiency of swimming pools. Rather than replacing worn equipment, refurbishing and protecting existing assets can deliver meaningful cost savings while reducing environmental impact.
For pool operators, leisure trusts and local authorities managing energy-intensive facilities, solutions such as LOCTITE® PC 7255 offer a practical and scalable approach to improving pump performance, controlling maintenance costs and supporting long-term sustainability goals.
