Any failure or uncontrolled discharge from a heated water service must be avoided, and a heated water service must ensure efficient use of drinking water by limiting a shower, basin, kitchen sink or laundry trough tap or outlet to 9 litres a minute. Deemed-to-Satisfy B2D4 sets water efficiency for outlets that deliver cold and heated water at a minimum 3 Star WELS rating. New South Wales replaces B2P12 because BASIX regulates fixtures in new Class 1 and 2 buildings.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.