Riser Replacement in an Occupied Nursing Home
A licensed sprinkler contractor is replacing a corroded 4-inch steel riser in a 90-bed nursing home. The system must be drained, leaving all 22 resident-room sprinkler heads and the kitchen hood suppression without water for an estimated 8 to 10 hours. The administrator wants the work done 7 a.m. to 3 p.m. so residents are not disturbed. The contractor's foreman plans to post one maintenance employee with a fire extinguisher in the lobby and to call the fire department only if a fire starts. The local fire department has told the administrator 'just get it done' but has not issued anything in writing. The contractor has a permit for the riser replacement but no approved impairment plan. The building's fire alarm system is monitored, and the nursing home has residents who cannot self-evacuate.
1. What must the contractor do before isolating and draining the sprinkler system?
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The contractor must treat this as a planned impairment, not a simple repair. Before isolation, it should develop a written impairment plan that identifies the affected areas, the expected duration, the fire watch arrangement, notification contacts, and restoration procedures. The contractor must notify the building owner, the fire department, the AHJ, and the insurer as required by the Ohio Fire Code and the owner's emergency plan. It should place impairment tags on the riser and fire department connection and confirm that the fire alarm monitoring company knows about the shutdown. A verbal 'just get it done' from the fire department is not an approved impairment plan, especially in a facility with nonambulatory residents. The contractor should also confirm whether a temporary water supply, standby fire watch, or partial sprinkler protection is required before any water is drained.
2. Is the proposed fire watch adequate? What should the contractor do if adequate fire watch cannot be provided?
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No. One maintenance employee sitting in the lobby with an extinguisher is not an adequate fire watch for a 90-bed nursing home with 22 affected resident rooms and a kitchen hood. A proper fire watch requires trained personnel assigned to patrol the affected areas, maintain a clear alarm and evacuation path, and have a means to notify the fire department immediately. The watch should cover the entire impairment period, including breaks and shift changes, and should be documented. If the nursing home cannot staff that watch, the contractor should not drain the system unless a temporary water supply or other approved protection is in place. The contractor should escalate the issue to the administrator and AHJ rather than relying on the foreman's informal plan. Proceeding without adequate protection would create serious life-safety exposure and licensing risk.
3. What restoration, testing, and documentation steps are required after the new riser is installed?
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After installation, the contractor should refill and vent the system, check for leaks, and restore all valves to their normal positions. It should test the main drain, the flow switch, the tamper switches, and the alarm signal to the monitoring company. The contractor should also verify that the kitchen hood suppression system and any other affected components are back in service, and it should remove the impairment tags only when the system is fully operational. The fire department and building owner should receive written notification that protection has been restored. The contractor should document the impairment start and end times, the fire watch records, the tests performed, and any defects found. This record is important for the AHJ, the insurer, and the contractor's own defense if a question arises about the shutdown period.