ADB reported that in Asia, NRW is high - estimates indicate a loss of 29 billion m2 of treated water every year, conservatively valued at US$9 billion.

In addition to being the most populous regions in the world, global warming and rapid migration to cities in recent times have put tremendous pressure on water resources.

Countries have made the supply of water and sanitation services a priority which allocated significant budget to support this development.

Within 10 years, water demand is expected to exceed supply by 470 trillion gallons.

The United Nations predicts that two-thirds of the world's population will face water scarcity issues by 2025.

Asia is in the grip of water crisis that could effect economic growth if left unresolved. ADB reported that estimation on recent made about Asia having a 40% gap between demand and supply by 2030.

Indonesia, Philippines, Thailand and Vietnam lose an average of 2% of their GDP because of poor sanitation equivalent to about USD$9 billion.