Winning ways to save water

Winning ways to save water
Khoo Teck Puat Hospital pipes water from Yishun Pond to its rooftop.

USING sensors to automatically stop plant-watering when it rains, educating visitors on environmental initiatives and cutting wastage from water overflow.

These were efforts that won two organisations and one individual the Watermark Award by national water agency PUB.

The annual award, first given out in 2007, recognises organisations and individuals for their contributions towards protecting and educating others about Singapore's water resources.

The winners this year are Alexandra Health System, which manages Khoo Teck Puat Hospital, Siloso Beach Resort on Sentosa and Asia Square building's sustainability manager, Mr Philip Chan.

At the hospital, water from the nearby Yishun Pond is used to irrigate plants on its rooftop gardens via an underground piping system, thus reducing the use of potable water. The hospital uses drip irrigation, which helps cut wastage. Plant-watering stops when sensors detect rain, and some 12 per cent of rain water run-off is collected for reuse.

The hospital saved 8 per cent more water, or 620,000 litres, last year, compared with 2013. That is more than 12 times the average monthly water consumption for a bungalow.

Siloso Beach Resort runs eco tours on its environmental programmes for visitors. There are also tours for other hotel building managers.

Asia Square's Mr Chan, 51, improved a pivot valve at the building's water tanks. The device, which will be rolled out in two months, helps cut water wastage due to water overflow.

The winners will each receive a trophy from Minister for the Environment and Water Resources Vivian Balakrishnan at the Singapore Sports Hub on Sunday.

This article was first published on Mar 18, 2015.
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