PART 7 — PLUMBINGUpdated for the 2024 Ontario Building Code

7.6.2.9.Air Gap

(1) An air gap shall not be located in a noxious environment. (2) Air gaps shall be not less than 25 mm high and at least twice the diameter of the opening of the water supply outlet in height.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.