P2904.5.2 Required Capacity
The water supply shall have the capacity to provide the required design flow rate for sprinklers for a period of time as follows:
- Seven minutes for dwelling units one story in height and less than 2,000 square feet (186 m2) in area.
- Ten minutes for dwelling units two or more stories in height or equal to or greater than 2,000 square feet (186 m2) in area.
Where a well system, a water supply tank system or a combination thereof is used, any combination of well capacity and tank storage shall be permitted to meet the capacity requirement.