The toilet is generally the fixture that consumes the most water in the home. The vast majority of toilets are filled with potable (suitable for drinking) water, but their sanitary function is to evacuate blackwater. New toilets that are not much more expensive generate major water savings, reducing the impact on this valuable resource.

Our recommendations :

1. Installing a toilet with a 6-litre tank or less (Watersense certification recommends 4.8 litres) saves 50% or more of the water used by a standard 13-litre model. RONA has made a commitment to stop selling toilets with tanks larger than 6 litres.
2. Installing a dual flush toilet (3 litres and 6 litres or less) is even better, because these models save over 66% of the water of a standard toilet if the dual flush function is used optimally.
3. Installing a composting toilet recovers materials that can be used as organic fertilizer and uses no water at all. A space to store the compost is required, along with regular maintenance to avoid possible problems. These toilets are expensive, but they’re a great idea for homes that are not served by municipal sewers and houses connected to wells.

Water consumption diagram for the average Canadian household (Environment Canada)

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