Technical Notes

PWTAG Technical notes are updates or new material for the standards and guidance given in 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.

Combining PWTAG’s specialist expertise and published scientific data, we aim to optimise swimming pool technical operation.

PWTAG Technical Notes Downloads

Click or tap one of the following links to download a PDF for each topic (coming soon).

  • Faecal contamination
  • Sulphate attack
  • Dealing with sodium hypochlorite spillage
  • Carbon dioxide for pH control
  • Interactive water features
  • Atmospheric determination of chloramines
  • Blood or vomit in the pool
  • Preventing and dealing with algae in pools
  • Superchlorination of swimming pool water
  • Polyaluminium chloride (PAC) dosing
  • How PWTAG deals with the new
  • Microbiological sampling
  • Notes on the hygiene of pool play equipment
  • Cryptosporidium – what pool operators need to know
  • Ultraviolet disinfection – specification, maintenance and validation
  • Balance tank design for deck-level pools
  • Gassing accidents
  • Cloudy water
  • Bunds for pool chemicals
  • Understanding breakpoint chlorination
  • Phosphate in pool water
  • Dechlorinating backwash water prior to discharge
  • Residual control
  • Choosing an acid pH correctant
  • UV installations in swimming pool plant rooms

PWTAG Technical Notes Archive

Click or tap on the link below to read more about these archived technical notes.

Technical NoteDate Published
Sulphuric AcidJanuary 2011
Energy Efficiency in Swimming PoolsJanuary 2012
Pool TemperaturesDecember 2010
Novel TreatmentsJanuary 2011
Designing for Good Water TreatmentMarch 2011
Hydraulics for Good Pool Water TreatmentMarch 2011
How warm does the water have to be for outdoor swimming?August 2012
Baby and Toddler Swimming in Warm Hydrotherapy PoolsNovember 2012
How the Authorities Investigate OutbreaksNovember 2013
Regenerative Media Filters (RMFs)April 2014
TDS control with electronic hypochlorite generationNovember 2014