All residential fire sprinkler systems shall be designed by a knowledgeable and trained person as approved by local permit authority. NFPA 13D-Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes will guide in determining a sufficient water source. Some circumstances, depending upon your sprinkler water demand, you may be able to use city water supply, stationary water tank or wells.
