How to apply for PoolMark Accreditation

Use the following six-step process to gain PoolMark accreditation for your facility.

How to become a PoolMark accredited pool

Scroll down on this page to read more about each stage of the process.

  1. Download and read the Code of Practice
  2. Do your background reading of Swimming Pool Water
  3. Make sure you are up to date with PWTAG Technical Notes
  4. Train your staff
  5. Take a trial test assessment
  6. Arrange a professional assessment

PWTAG Code of Practice and PoolMark

Poolmark Flowchart

Read the Code of Practice

The PWTAG Code of Practice provides pool operators with a structured plan for the technical operation of their pool.

The Code ensures that the technical operation of a pool meets quality standards that provide a healthy experience for swimmers using recognised and established practices, techniques, engineering and design. For this reason all UK pools are encouraged to follow it.

Become familiar with PWTAG’s Swimming Pool Water

Swimming Pool Water is the essential guide for everyone involved in the design, treatment, management and scrutiny of pools of all sorts – expanded, refined, updated, still authoritative.

For this reason all UK pools are encouraged to purchase it and follow it.

Keep up to date with our Technical Notes

PWTAG Technical Notes are updates or new material for the standards and guidance given in the the PWTAG book, Swimming Pool Water and the PWTAG Code of Practice and should be read in association with these publications.

PWTAG keeps pool operators up to date by providing guidance through these technical notes on the issues of the day. We specialise in applying objective study to help optimise swimming pool technical operation.

Train and qualify your staff

To meet the Code and gain the PoolMark qualification pools must have appropriately trained and qualified staff called swimming pool technical operators (SPTOs).

To show the training required PWTAG has produced a training document. Its syllabus defines the knowledge and onsite skills that lead to competence. Pools themselves can assess staff knowledge against the syllabus, or it can be used as the basis of a training programme.

PWTAG itself does not do the training: that is done by the accredited training organisations. (see registered operators) But staff who go through a PWTAG accredited training programme have the assurance that their staff are trained and qualified to PWTAG standards.


Our self-assessment form is a good way of checking whether your pool is satisfying the requirements of PoolMark accreditation.

These questions on the form are self-assessed as follows:

  • Satisfactory: the pool has the relevant arrangements in place and meets at least the standards of the PWTAG Code of Practice
  • Improvement needed: the pool does not meet the requirements
  • Not relevant: this question is not relevant for your pool.

Professional assessment

Once you are satisfied you are ready for a professional assessment, head to the PoolMark pages of the Palm Academy website to arrange for this to take place.