7.3.3.11.Indirect Connections

(1) Where a fixture or device is indirectly connected, the connections shall be made by terminating the fixture drain
     above the flood level rim of a directly connected fixture to form an air break.

     (2) The size of the air break shall be not less than 25 mm.

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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.