Hot & Cold Water System Disinfection Course
1 Day Classroom – £285
Price includes City & Guilds Certification
Hot & Cold Water System Disinfection Course
1 Day Classroom – £285
Price includes City & Guilds Certification
Cleaning & Disinfection of Hot & Cold Water Systems (Practical) Training Course Overview
This 1-day, City & Guilds accredited course is designed for water hygiene professionals, facilities managers, and engineers who are responsible for cleaning and disinfecting hot and cold water systems as part of their role. Delivered in a classroom setting and combined with hands-on practical training, the course equips delegates with the knowledge, skills, and confidence to carry out effective and compliant water system disinfections.
Legionella control remains one of the most important aspects of water hygiene management in commercial, industrial, and residential settings. Poorly maintained or improperly disinfected hot and cold water systems can create the ideal conditions for waterborne pathogens, including Legionella bacteria, to develop and spread. This course ensures delegates understand not only how to carry out a disinfection, but why it’s a critical part of ongoing water safety compliance.
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Key Learning Outcomes
Throughout the course, delegates will cover a range of essential topics, including:
- Why disinfection is necessary for hot and cold water systems, including an overview of waterborne pathogens such as Legionella, and the specific circumstances that trigger the need for disinfection (e.g. new installations, contamination events, extended system downtime, or routine maintenance schedules)
- Legal and regulatory requirements relating to water system disinfection, including:
- Health & Safety at Work Act 1974
- Control of Substances Hazardous to Health (COSHH)
- Confined Space Regulations
- Working at Height Regulations
- Practical disinfection methods, including the safe handling, dosing, and application of sodium hypochlorite to carry out a thorough and compliant disinfection process, from initial system assessment through to post-disinfection flushing and verification
Why Attend This Water System Disinfection Course?
Unlike purely theory-based training, this course blends classroom learning with genuine hands-on experience. Using our purpose-built training facilities, delegates work with the same tools, equipment, and techniques used across the water hygiene industry, applying their knowledge to realistic, industry-standard scenarios rather than simply reading about procedures in a manual.
This practical approach means delegates leave the course genuinely job-ready, with the confidence to carry out disinfections safely and correctly in real working environments — whether in commercial buildings, healthcare facilities, hotels, or other premises with hot and cold water systems.
Delegates will also develop a strong working competence in ACOP L8 (Fourth Edition) — the Health and Safety Executive’s Approved Code of Practice for controlling Legionella — and HSG274 Part 2 technical guidance, both of which form the backbone of legal compliance for water system management in the UK. This grounding ensures delegates aren’t just following steps, but understand the regulatory framework behind every action they take.
Who Should Attend?
This course is ideal for water hygiene technicians, plumbing and building services engineers, facilities and maintenance managers, and anyone with responsibility for legionella control and water system compliance within their organisation.
What Will I Achieve?
On successful completion of the Cleaning & Disinfection of Hot & Cold Water Systems course, delegates receive a City & Guilds accredited certificate, providing recognised proof of competence in this critical area of water hygiene. This certification is valid for 2 years, after which delegates are required to complete a refresher course to maintain their competency and ensure their skills and knowledge remain up to date with current best practice and legislation.
Course Information
Basic Legionella Awareness:
- Knowledge of waterborne pathogens including Legionella Bacteria
Occasion when disinfections are required:
- Aware of when disinfections are required
Legislative Requirement:
- Know what does the guidance HSG 274 part 2 recommends
Health & Safety requirement entering confined spaces
- Understand the importance of confined space requirements and the equipment needed for work in cold water storage tanks.
pH & its effectiveness on the chemical in use:
- Be aware of the need to check pH of water before a disinfection
CWS tank Cleaning and Disinfection process
- Know the practical elements of tanking cleaning and disinfection
How air locks occurs
- Knowledge of how to prevent and remove airlocks using different methods
Cleaning and disinfection equipment/tools:
- Understand what kit is required to carry out a successful clean and disinfection
Chlorine testing procedures:
- Knowledge of the best kit and procedure for testing for chlorine
Chemicals Used:
- Know how much chemical to be used to complete a successful and safe clean & disinfection.
- Gain an understanding of the safety equipment needed when working with these chemicals.
- The reasons for the need of disinfection
- The different methods that can be used on hot and cold water systems
- The legal statute requirements involved
- The practical steps required to carry out safe and successful disinfections using the different methods
- Improved competence of employees carrying out disinfections
- Reduced risk of health & safety hazards associated with hot and cold water systems
- Compliance with legal and guidance requirements
At the end of the legionella training each delegate undertakes a multiple choice assessment consisting of 20 questions, with 15 correct answers achieving a pass grade (75%).
Where facilities permit, assessment is completed online to enable faster processing of results and certification.
On successful completion you will receive a City and Guilds Accredited Programme Certificate. However, the certificate of training should be refreshed after every 2 years.
A digital certificate will be made available for you to download normally within 48hrs of successfully completing this course.
Paper copies of certificates can be supplied subject to a small administration fee.
Management of Water Safety in Healthcare Estates HTM
- Suitable for those who work in healthcare premises and are classed as a Responsible or Deputy Responsible Person with the influence over the management of water systems. Meets the requirements of the ACoP L8, HSG274 part 1, HSG274 part 2, and HTM 04-01 part b
- Four legionella courses to ensure you get the correct training for your appointed responsibility
- Four learning styles to choose from
- Meetings the requirements of ACoP L8 and HSG 274
- We are the UK’s No.1 legionella training provider