46 C.F.R. § 108.423 Fire hydrants and associated equipment.
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(a) A fire main system must have enough fire hydrants so that each accessible space may be sprayed with at least two spray patterns of water. (b) In a main machinery space, except a shaft alley with no assigned space for stowage of combustibles, each spray pattern of water must be from one length of fire hose and each must be from a separate outlet. In all other spaces at least one spray pattern of water must be from one length of fire hose. (c) No outlet on a fire hydrant may point above the horizontal. (d) Each fire hydrant must have at least one spanner and at least one fire hose rack or reel.
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PART 108—DESIGN AND EQUIPMENT
Subpart D—Fire Extinguishing Systems
Fire Main System
§ 108.423 Fire hydrants and associated equipment.
