Pool Water Treatment Advisory Group

The UK’s authoritative guidance on swimming
pools and spas

Welcome to the online resources of The Pool Water Treatment Advisory Group (PWTAG), an independent, non-commercial membership organisation dedicated solely to raising standards in swimming pool water treatment.

PWTAG's members and technical advisers include most specialist organisations with an interest in pool water treatment and pool users; but PWTAG is able to pursue its work without any commercial or other influence.

PWTAG STOP PRESS

Microbes in pool filter backwash as evidence of need for improved hygiene

Public Health England on Cryptosporidium
Video warns pool users about crypto – a PWTAG co-production
Don’t pee in pools – whatever the Olympians say
New guidance on disinfectant efficacy from OECD
Revised guidelines on the use of hydrotherapy-type pools for baby and toddler swimming
How warm does the water have to be for outdoor swimming?
COMEAP Medical Committee statement on low likelihood of link between swimming, chlorine & asthma
What to do about blood and vomit in pools
Preventing and dealing with algae in pools
PWTAG on faecal contamination
Read the latest minutes of PWTAG meetings
Guidance on Cryptosporidium from the UK Reference Unit

PWTAG CoP 1.13

PWTAG’s code of practice, The management and treatment of swimming pool water

Now available to download here

PWTAG CoP an introduction

download the introduction

THE LATEST EDITION OF SWIMMING POOL WATER

The essential guide for everyone involved in the design, treatment, management and scrutiny of pools of all sorts – expanded, refined, updated, still authoritative. Chapter 1, What is a swimming pool? available free here. Visit Publications for more information or to order your copy