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EUSR Endorsed Chlorination, De-Chlorination, Flushing & Sampling

Course Duration:
One Day
Format:
Location:
Home > Training Courses > Utility & Construction Training > EUSR Endorsed Chlorination, De-Chlorination, Flushing & Sampling

Course Overview

The Chlorination, Flushing & Sampling course provides delegates with the practical skills and technical understanding required to safely disinfect, flush, and sample potable water systems in accordance with UK water industry standards.

This hands-on programme is designed for operatives, supervisors, and technicians involved in commissioning new water mains, refurbishing existing pipework, or maintaining clean water networks. Delegates will learn how to correctly apply disinfection techniques, follow approved flushing procedures, and collect representative water samples that meet regulatory and laboratory acceptance criteria.

The course also emphasises the importance of maintaining network hygiene, preventing contamination, and ensuring compliance with current guidelines such as BS EN 806, BS 8558, and local water authority requirements. Real-world demonstrations and scenario-based exercises help delegates build confidence in completing site documentation, interpreting water quality results, and applying safe working practices in the field.

By the end of the training, delegates will be able to conduct chlorination and sampling activities competently, protect public health, and ensure water systems are safe for connection or re-commissioning.

Course Duration:
One Day
Format:
Location:

Certification Awarded

EUSR Chlorination, De-Chlorination, Flushing & Sampling Registration & Card

Valid for

Three Years

Awarding Body

EUSR Approved Trainer

Who should Attend This Course

This EUSR Endorsed Chlorination, De-Chlorination, Flushing & Sampling course is ideal for:

  • Site engineers and water network technicians
  • Contractors installing or repairing water systems
  • NCO and temporary works supervisors involved in potable water connections
  • Anyone responsible for chlorination, flushing, sampling, and water quality verification

Prerequisites

Be able to read, write and understand English to a good level.

What To Have With You To Attend The Course

Photo ID

Assessment

Assessment includes: Written/multiple-choice theory test Practical exercise evaluated for competency

Course Content

The training covers both theoretical knowledge and practical skills, including:

Water Hygiene & Regulatory Requirements

  • Overview of potable water system hygiene principles
  • Legal and regulatory framework (BS EN 806, BS 8558, Water Regulations)
  • Responsibilities of duty holders and water operatives
  • Preventing contamination and maintaining clean network conditions

Chlorination & Disinfection Techniques

  • Purpose and methods of disinfection in potable systems
  • Chlorination procedures:
    • Chlorine dosing
    • Shock chlorination
    • Tablet and liquid chlorine use
  • Calculating correct chlorine concentrations
  • Contact time requirements and verification

Flushing Procedures

  • Pre-commissioning and post-repair flushing requirements
  • Techniques for clearing mains and service lines
  • Ensuring correct flow, turbidity reduction, and visual inspection
  • Establishing clean water pathways during construction activities

Water Sampling & Quality Testing

  • How to take representative water samples
  • Sampling protocols in line with UK water company and lab standards
  • Use of sterile bottles and chain-of-custody procedures
  • Parameters tested (e.g., chlorine residuals, microbiology indicators)
  • Understanding laboratory reports and interpreting results

Documentation & Record Keeping

  • Completing hygiene records, disinfection certificates, and flushing logs
  • Recording chlorine concentration, contact time, and turbidity data
  • Site audits, traceability, and evidence required for handover

Health & Safety Considerations

  • Risk assessments and method statements for chlorination activities
  • Safe handling and storage of chemicals
  • Control measures for confined spaces, traffic management, and network pressure hazards
  • PPE requirements and emergency procedures

Frequently Asked Questions

What does chlorination flushing sampling involve?

It covers disinfecting (chlorination), cleaning lines (flushing), and testing (sampling) to ensure safe drinking water.

Do I need prior experience to attend?

Basic knowledge of water mains and safety awareness is recommended, but not essential.

Is certification accepted by network operators?

Yes – this training meets regulatory and network compliance requirements for water quality.

What PPE is required?

Standard water network PPE (safety boots, gloves, hi-vis) is needed; other equipment is provided.

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