I'm dealing with a situation now where we are completely renovating an old mixed-occupancy property and the plans were drawn and approved with a 2-inch incoming service for both the residential domestic water and the fire suppression system.
Now that the fire sprinkler contractor is ready to install, and the fire chief reviewed plans for the 2-inch pipe, the fire chief says he won't approve it unless we install a minimum of 4-inch incoming pipe from the main.
The architect says the city already approved the pipe size. Fire Marshal says no.
Anyone have code/insight to support either way?
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