Water and electricity is a deadly combination, but you can replace a pool light yourself - if you're very, very careful, and shut off the circuit breaker first.

The folks at Pentair Pool Products are introducing the Spectrum Amerlite, the first underwater color light for a swimming pool, and Aqua-Light, the first underwater spa lighting.

“For a swimming pool, lighting systems can be fixed at up to two metres deep,” says James. Spotlights work best in swimming pools, and they can be blended with linear lighting.

Public swimming pools are increasingly turning to ultraviolet light to kill bacteria and other pathogens that chlorine doesn't always catch.