When Did The 4 National Taps Start?

When Did The 4 National Taps Start? The first Water Master Plan in 1972 envisioned a diversified water supply over the next half-century, from what would become known as the Four National Taps: local catchment water, imported water, reclaimed water, and desalinated water. What are the 4 national taps? Singapore has built a robust, diversified