Saving Water

Since 2013/14, we have adopted specification for 6-litre dual flush water-closets for selected projects use.

All close-coupled WC suites to be used in HA’s projects, unless otherwise specified, shall be (i) of dual flush to BS EN 997:2012+A1:2015 and (ii) registered under the prescribed water efficiency grade(s) of Water Supplies Department (WSD)’s Water Efficiency Labelling Scheme (WELS) according to WSD’s Circular Letter No. 11/2019 with effect from 1 December 2019 with a one-year grace period.

• The facility can be used for dust-control and to wash the wheels of construction vehicles.
• The waste water is then properly treated to drainage standards.
• Contract Manager’s approval is required if the facilities are to be removed.

"Twin Tanks" water supply installation provides an uninterrupted fresh and flush water supply to residents. It not only reduces water wastage during maintenance or cleaning, but also improves the durability of the building's roof structure. "Twin Tanks" water supply installation is adopted at all new public housing blocks completed from mid-2009 onwards.

To reduce the consumption of potable water through the application of water saving devices, we have promulgated specification to use water efficient shower handset and mixers to BEAM Plus and Water Supplies Department’s Water Efficient Labelling Scheme (WELS) requirements.