THE Government has urged seven states to immediately impose the requirement for new buildings to have rainwater harvesting systems in order to reduce the need for treated water.
Urban Wellbeing, Housing and Local Government Deputy Minister Datuk Halimah Mohd Sadique said so far, only Perak, Selangor, Johor, Malacca, Kelantan and Perlis had gazetted by-laws that made it compulsory for rainwater collection system to be installed.
Kedah, Penang, Negri Sembilan, Pahang, Terengganu, Sabah and Sarawak have yet to gazette the bylaw.
Halimah said based on research, some 34% of treated water usage at home could be replaced by rain water, which could be utilised for non-potable purposes such as gardening and washing.
She said the ministry would also consider introducing incentives for developers to encourage the installation of the system.
On the water crisis in Selangor earlier in the year, Halimah said the state must ensure the system was implemented properly so that the shortage of treated water supply could be alleviated.