Pool Water Testing and Chemical Dosing Toolbox Talk

This toolbox talk provides lifeguards, pool attendants and duty managers with clear, step‑by‑step guidance for daily water quality monitoring and chemical dosing in gyms, leisure centres and public swimming pools.

Key hazards include chemical burns from chlorine or acid, eye irritation from chloramine vapour, and respiratory distress caused by over‑chlorination. Incorrect pH can accelerate corrosion of metal fittings and reduce the effectiveness of disinfectants, while low chlorine levels allow bacterial growth and increase the risk of Legionella. By following a disciplined testing regime, staff protect swimmers, reduce injury claims and maintain a pleasant swimming environment.

Under the Control of Substances Hazardous to Health Regulations 2002 (COSHH), employers must assess, control and document the use of hazardous chemicals. BS EN 16713‑3:2016 specifies the technical requirements for pool water treatment, including sampling methods, acceptable limits and dosing calculations. This talk aligns the practical daily tasks with those legal duties.

• Use this talk for: routine water testing, chemical dosing training, emergency response drills, and audit preparation.

Staff will learn how to collect a representative sample, interpret test results, calculate accurate doses, apply appropriate PPE and record every step to demonstrate compliance. Accurate records also provide evidence for regulatory inspections and support continuous improvement of water‑quality management.

All content is fully editable and shareable, allowing each facility to tailor the talk to local procedures or update it as standards evolve.

Compliant with: Control of Substances Hazardous to Health Regulations 2002 and BS EN 16713‑3:2016.