Take the Plunge to High-Efficiency Toilets

Toilets use 24% of all indoor water use, using between 4.8 litres to 20 litres of our region's drinking water every time they're flushed.

Why install a high-efficiency toilet?

  • They're reliable. Easy to install and maintain, high-efficiency toilets have proven to be efficient and reliable. Read more >>
  • They save water. Your family can save over 30,000 litres of water a year with a 4.8 litre high-efficiency toilet. That's a significant reduction in household consumption.
  • It's the law. Effective October 3, 2011, the British Columbia Building Code regulation was amended to require the installation of high-efficiency toilets and urinals in all new residential buildings and renovation projects involving toilet replacements in British Columbia.

Planning for high-efficiency installations

If you are planning a construction or renovation project, check out the High-Efficiency Toilets brochure available from the CRD or local plumbing retailers and home improvement stores.

Like any consumer product, not all toilets are created equal. The Maximum Performance Testing of Popular Toilet models (referred to as the MaP study) is an independent toilet evaluation available to help consumers make an informed choice. Independent test results of high efficiency toilets are available through the American Waterworks Association.

2011 BC Building Code Amendment

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.

How can I tell if a toilet is low-flow?

Low-flow and high-efficiency toilets look like other models, but often have a smaller tank. Toilets must be marked to indicate they have been tested for low flow water consumption. Look for toilets marked with one of the following: "LC," "4.8," "LC/4.8," "LPF" or "xLPF" where x indicates tested value in litres per flush and is equal to or less than or 4.8 litres.