Let one of these high-powered, cordless robotic pool cleaners get your backyard lounge ready for swimming season.

A water firm is using technology worth £20m for the first time in the UK to pump ozone gas into a river to reduce pollutants.

Its luxury features include 24/7 filtration, Wi-Fi, dome and foot jets, ozone protection packages ... Saltwater hot tubs use a salt chlorine generator to convert salt into chlorine through ...