The International Fire Code requires a fire flow be available for a structure that is determined with an approved method. Aside from the Appendix B guidance in the International Fire Code, there's multiple other methods for determining the amount and duration of fire flow that is required for a building.
My question is when determining whether there's enough flow available to meet this determined amount, where is it calculated relative to a building? Does there just need to be enough water available within 200 feet of the building, or at a main near the site, or perhaps on hydrants adjacent to the building?
I'm very familiar with standpipe hose calculations, which seems like a similar application to this, but I'm not sure where to actually apply the fire flow to complete the calculation.
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