How to save water: Use seawater

When I first visited Hong Kong more than 30 years ago, I noticed that they used seawater to flush their toilets instead of clean fresh water.

I thought it made a lot of sense and have always wondered why Singapore has never done the same.

Water for flushing the toilet and showering make up about a third of our daily consumption.

We would be able to cut down our daily water consumption drastically if we could use seawater to flush toilets.

I hope the Ministry of the Environment and Water Resources will look into implementing it progressively as clean water will only become more and more scarce and expensive in the future.

Yeo Chee Kean

A version of this article appeared in the print edition of The Straits Times on February 24, 2017, with the headline 'How to save water: Use seawater'. Print Edition | Subscribe