Under the updated regulation, new residential buildings and renovation projects, involving toilet replacements must include high-efficiency toilets with a 4.8-litre flush volume or less. Toilets which provide a dual flush cycle option of both 4.1-litres or less and 6-litres are compliant. Urinal installations remain unchanged, with the maximum flush volume of 1.9-litres or less. The amendment allows residents to use water more efficiently, extending the life of existing water supplies and making water available for other uses.
These new requirements will apply to buildings used for Group C, residential occupancies only. Group C occupancies include houses, apartments, hotels, motels, lodging houses and dormitories. For more information, please contact your local building inspector.