Our National Pool Plant Operators Certificate, delivered by the Institute of Swimming, covers everything you need to maintain a swimming pool.

Approved by the Pool Water Treatment Advisory Group (PWTAG) and meeting their industry guidelines, the course is considered the highest standard, widely viewed as best practices and validated by RLSS UK as the awarding body.

This three-day course will teach you the day-to-day technical information needed to operate a pool plant. After completing this course, candidates understand how to maintain water so it's safe and pleasant to swim in, know how to correctly test the water, and how to restore it to ideal conditions.

This is an essential qualification for those managing the daily running of a pool plant room. You will be able to maintain swimming pool hygiene, control chlorine and chemical levels, along with diagnosing and testing the water.

Course Prerequisites

You must be at least 18 years of age. There are no formal entry requirements for this qualification.

Course Content

The course is aimed at anyone involved in and responsible for the day-to-day operation of the pool plant. This includes local authority employees, schools and private pool owners.

Topics covered include:

  • Maintaining swimming pool hygiene
  • Controlling chlorine and chemical levels
  • Managing water supplies and water treatment
  • Testing for pollution and parasite infection
  • Maintaining pipes, circulation and filtration
  • Promoting health and safety
  • Disinfecting water
  • Balancing pH and alkalinity
  • Diagnosing and testing the water
  • Making savings on heating, ventilation and energy


To achieve the National Pool Plant Operators Certificate, candidates must complete a written multiple-choice test and work-based assignment.

Book a Course

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National Pool Plant Operators Certificate is valid for three years; candidates will need to renew their qualification within the validity of their existing qualification. We recommend candidates engage in continuous training to ensure they keep their skills and knowledge up to date. To find a renewal course, click here.

Other pool plant qualifications

Pool Plant Foundation Certificate

Spa Pool Operator

Click here to view all our qualifications