Interplan Leisure Ltd
Manufacture, supply, and install swimming pool liners; describes their products and services, with contacts.
ISPE - Institute of Swimming Pool Engineers
An organisation for individual swimming pool engineers to promote professionalism and provide training and support; with details of membership, events diary, and contacts.
Pool Water Treatment Advisory Group (PWTAG)
An independent membership organisation dedicated to raising standards in swimming pool water treatment. Includes a profile and contacts, with a library of technical information and advice.