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What is the maximum distance (m) a relief vent can be from a circuit vent?

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kami4444
kami4444 Member Posts: 33
in Plumbing
What is the maximum distance (m) a relief vent can be from a circuit vent?

a) 2m
b)4m
c) 7m?

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  • Danny Scully
    Danny Scully Member Posts: 1,426
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    I'm not sure if there's a maximum distance, but its required location is detailed in the international plumbing code:

    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.

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