Oasis of reverse osmosis

TNP PICTURE: NG JUN SEN

This water plant tucked away in Pasir Ris does double duty – it can generate clean water from both canal water and sea water.

In heavy rain, it processes canal water. During dry weather, it switches to sea water desalination.

Known as a variable salinity plant (VSP), it is a world first and is more cost-effective compared to a full scale plant that is productive only during the wet or dry spell, said a spokesman for national water agency PUB.