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// CODE SNIPPET

914.4 Relief Vent

2014 FBC - Plumbing, 5th edition > 9 Vents > 914 Circuit Venting > 914.4 Relief Vent
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A relief vent shall be provided for circuit-vented horizontal branches receiving the discharge of four or more water closets and connecting to a drainage stack that receives the discharge of soil or waste from upper horizontal branches.

914.4.1 Connection and Installation

The relief vent shall connect to the horizontal branch drain between the stack and the most downstream fixture drain of the circuit vent. The relief vent shall be installed in accordance with Section 905.

914.4.2 Fixture Drain or Branch

The relief vent is permitted to be a fixture drain or fixture branch for fixtures located within the same branch interval as the circuit-vented horizontal branch. The maximum discharge to a relief vent shall be four fixture units.

Related Code Sections


914.4 Vents, Relief Vent
A relief vent shall be provided for circuit-vented horizontal branches receiving the discharge of four or more water closets and connecting ...
2014 FBC - Plumbing, 5th edition > 9 Vents > 914 Circuit Venting > 914.4 Relief Vent
914.4 Vents, Relief Vent
A relief vent shall be provided for circuit-vented horizontal branches receiving the discharge of four or more water closets and connecting ...
2017 FBC - Plumbing, 6th edition > 9 Vents > 914 Circuit Venting > 914.4 Relief Vent
914.4 Vents, Relief Vent
A relief vent shall be provided for circuit-vented horizontal branches receiving the discharge of four or more water closets and connecting ...
2020 FBC - Plumbing, 7th edition > 9 Vents > 914 Circuit Venting > 914.4 Relief Vent
460.10.2 Special Detailed Requirements Based on Use and Occupancy, Crypt Relief Vent
shall have a pressure relief vent from the crypt to the roof of the mausoleum complying with Section M515, Mausoleum relief system, of the Florida ...
2014 FBC - Building, 5th edition > 4 Special Detailed Requirements Based on Use and Occupancy > 460 Mausoleums and Columbariums > 460.10 Family Mausoleum > 460.10.2 Crypt Relief Vent
460.10.2 Special Detailed Requirements Based on Use and Occupancy, Crypt Relief Vent
shall have a pressure relief vent from the crypt to the roof of the mausoleum complying with Section M515, Mausoleum relief system, of the Florida ...
2017 FBC - Building, 6th edition > 4 Special Detailed Requirements Based on Use and Occupancy > 460 Mausoleums and Columbariums > 460.10 Family Mausoleum > 460.10.2 Crypt Relief Vent
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