Control of legionella and other infectious agents in spa-pool systems

About this guidance

Spa-pool systems are a recognised source of diseases caused by infectious agents including the organism that causes legionnaires' disease, primarily Legionella pneumophila. There have been a number of outbreaks linked to spa pools in leisure centres, hotels, holiday homes, on cruise ships and on display.

This guidance, which supersedes the joint HSE-HPA publication, Management of Spa Pools: Controlling the Risks of Infection, is primarily for those who manage or operate spa-pool systems and explains how to manage and control the risks from legionella and other infectious agents. It will also help service suppliers, designers, manufacturers, importers, suppliers and installers of spa-pool systems meet their legal responsibilities.

As well as guidance on operating and maintaining commercial-type systems, there is specific advice on domestic-type spa pools or hot tubs used as part of a business activity, for example in holiday-park rental units, hotel bedrooms with a dedicated spa and systems on display or at exhibitions. The guide includes advice on effective ways to safely manage and control spa-pool systems through:

• design, commissioning, operation and maintenance;
• testing and monitoring spa-pool water quality;
• quality and frequency of inspections.