The Ontario Building Code | Connection of Systems

7.6.2.1. Connection of Systems

(1) Connections to potable water systems shall be designed and installed so that non-potable water or substances that may render the water non-potable cannot enter the system.

(2) No connection shall be made between a potablewater system supplied with water from a drinking water system and any other potablewater system without the consent of the water purveyor.