The Ontario Building Code | Cleaning of Systems
7.6.2.8. Cleaning of Systems
(1) A newly installed part of a potable water system shall be cleaned and then flushed with potablewater before the system is put into operation.
In Plain Language
Water systems must be cleaned as set out in this article before being placed into service, removing construction debris and residue that could otherwise contaminate the potable water supply.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.