PART 7 — PLUMBINGUpdated for the 2024 Ontario Building Code

7.2.10.8.Direct Flush Valves

(1) Every direct flush valve shall (a) open fully and close positively under service pressure, (b) complete their cycle of operation automatically, (c) be provided with a means of regulating the volume of water that they discharge, and (d) be provided with a vacuum breaker unless the fixture is designed so that back-siphonage cannot occur, and (e) conform to ASSE 1037 / ASME A112.1037 / CSA B125.37, “Performance requirements for pressurized flushing devices for plumbing fixtures.”

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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.