UpCodes logo
Jump To Full Code Chapter
The water supply for a multipurpose or stand-alone sprinkler system shall be provided by the public water main, private water main, private well system, or storage tank. The water supply required shall be determined in accordance with Section 612.5.1.2 at a pressure not less than that used in accordance with Section 612.5.3.
612.5.2.1 Water Pressure From Individual Sources
Where a dwelling unit water supply is from a tank system, a private well system, or a combination of these, the available water pressure shall be based on the minimum pressure control setting of the pump.
612.5.2.2 Required Capacity
The water supply shall have the capacity to provide the required flow rate to the sprinklers for a period of time as follows:
  1. Seven minutes for one story dwelling units less than 2000 square feet (185.8 m2) in area.
  2. Ten minutes for multi-level dwelling units and one story dwelling units not less than 2000 square feet (185.8 m2) in the area.
Where a well system, a water supply tank system, or a combination thereof is used a combination of well capacity and tank storage shall be permitted to meet the capacity requirement.

Related Code Sections

612.5.2 Water Supply and Distribution, Sprinkler Pipe Water Supply
The water supply for a multipurpose or stand-alone sprinkler system shall be provided by the public water main, private water main, private well ...
P2904.6.1 Water Supply and Distribution, Method of Sizing Pipe
The minimum pipe size from the water supply source to any sprinkler shall be 3/4 inch (19 mm) nominal. Threaded adapter fittings at the point where ...
1.3.1 Administration,
This standard shall apply to the following: Character and adequacy of water supplies Sprinklers Fittings Piping Valves All materials ...