Theme of the episode 5: The wonderful world of liners. CGT Alkor is part of the Canadian CGT Group, which was founded in 1869. The company has developed into one of the world’s leading producers of coated textiles and foils. CGT Alkor in Liancourt, France, has more than 50 years of experience in the production of PVC films, in particular surface materials for swimming pools. Angela and Michael talk to the General Manager for Europe about the benefits of liners, the latest trends and what else you need to know about foil-lined swimming pools.