WJA Drain & Sewer for Duct Desilting – Practical Module
The WJA Drain & Sewer for Duct Desilting Module is a hands-on, practical training session for operatives working with high-pressure water jetting equipment in drainage and duct systems. This WJA-accredited practical module is essential for anyone involved in drain and sewer cleaning, helping operatives carry out jetting tasks safely, efficiently, and in line with the Water Jetting Association Code of Practice.
Delivered by expert Flowplant instructors, this module includes classroom-based learning, group discussions, and a practical assessment. It’s the next step after completing the WJA Safety Awareness course, and forms part of the recognised WJA certification pathway.
Who Should Attend?
This practical module is suitable for:
- New jetting operatives
- Drainage contractors
- Water jetting service supervisors and designers
- Site owners and health & safety managers
- Permit issuers and site-based compliance staff
All delegates must have passed the WJA Safety Awareness course within the past three years.
What You’ll Learn | WJA Drain & Sewer for Duct Desilting Module
This course provides detailed knowledge of the risks and practical procedures involved in water jetting for drain and sewer desilting. Delegates will cover:
- Structures and applications for drain and duct jetting
- The WJA Code of Practice and how it applies on-site
- Hose and nozzle selection, maintenance, and safety
- Equipment checks and managing reaction force
- Injury prevention, PPE / RPE requirements
- The difference between grit blasting and water jetting
- Effective team roles and responsibilities
- Real-world examples, incidents and how to avoid them
- Leaving the site safe and secure
The session ends with a practical water jetting task assessment, reviewed by your WJA coach.
Learning Outcomes
Delegates will:
- Understand key hazards and control measures in drain jetting
- Know how to inspect and operate water jetting equipment safely
- Demonstrate best practice in PPE and task preparation
- Identify jetting-specific injuries and how to respond
- Understand the principles of safe system of work
- Be able to contribute effectively as part of a competent jetting team
Course Format
Our courses include:
- Facilitated group discussions
- Holding Q&A sessions
- Discussing relevant case studies
- Use of real-world incident data
- Peer knowledge sharing
- Practical assessments and digital tests
Practical Course Information
Duration: 1 day
Assessment: Theory & practical assessment (75% pass mark required)
Certification: City & Guilds registered, WJA approved – valid for 3 years
Locations: Flowplant Salisbury, Rotherham, or on-site (UK/international)
Pre-course requirement: WJA Safety Awareness
Minimum age: 18 (unless enrolled in a structured training programme)
Pre-course prep: None
What to Expect on the Day
We aim to make our WJA Drain & Sewer for Duct Desilting module session friendly, professional, and practical. You’ll be welcomed from 08:15 with tea, coffee, and biscuits before the day starts at 08:30.
Expect a full day of structured learning, supported by one of our experienced WJA-approved coaches. There’s plenty of time for discussion, questions, and hands-on assessment. Lunch is included at Flowplant centres (please let us know about dietary needs), and we aim to finish between 15:30 and 17:00, depending on group size.
