The Ontario Building Code | Water Supply for 65 mm Hose Connections
3.2.9.7. water Supply for 65 mm Hose Connections
(1) If 65 mm diam hose connections are required, the water supply shall be sufficient to provide a flow, measured at each of the two hydraulically most remote 65 mm diam hose connections,
(a) of not less than 1 890 L/min,
(b) for not less than 30 min,
(c) at a pressure of not less than 450 kPa, and
(d) of not less than 945 L/min from each of the two outlets simultaneously.
(2) If the building is less than 84 m high, measured between grade and the ceiling level of the top storey, the water supply required in Sentence (1) is permitted to be supplied through the fire department connection.
(3) If the building is 84 m or more high, measured between grade and the ceiling level of the top storey, the water supply required in Sentence (1) shall be provided by sufficient pumping capacity.
(4) If the building is 84 m or more high, measured between grade and the ceiling level of the top storey, the buildingshall be served by no fewer than two sources of water supply from a public water system.
Section 3.3. Safety Within Floor Areas
3.3.1. All Floor Areas
In Plain Language
This clause closes out Subsections 3.2.8 and 3.2.9 by addressing remaining specific interconnected floor space and standpipe system requirements for configurations not otherwise directly covered earlier.
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.