Fire Pump & Water Supply Testing (NFPA 25)
The NFPA 25 water-supply schedule — the weekly diesel (monthly electric) churn run your staff can do, the annual full-flow test a contractor runs, and the five-year hydrant, tank and standpipe tests.
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NFPA 25 (water supply) schedule
Every requirement carries its code section and the edition it was verified against. ★ = qualified in-house under the national code, but licensing commonly required locally — confirm with your AHJ.
This is not one schedule from one edition. The rows below were verified against different editions of NFPA 25 (water supply) (2020 and 2023), shown per row in the Code column. Section numbers and intervals move between editions, and we have not determined which edition your jurisdiction has adopted — read each row against the edition beside it and confirm with your AHJ rather than treating the table as a single document.
NFPA 25 is a consensus standard: it binds your building through the edition your jurisdiction adopted. The current published edition is 2026; the rows below were verified against 2020 and 2023, and many AHJs are still earlier again. Section numbers move between editions. NFPA 25 puts the inspection, testing and maintenance program on the building owner, not on the contractor, even where the work is delegated by lease. The churn split turns on the pump’s driver and listing — diesel weekly, electric monthly — and specific electric-pump configurations stay weekly, so confirm which side yours falls on; the durations are not interchangeable either. NFPA 25 requires qualified personnel for the annual flow test and the five-year tests; whether that means a licensed contractor in your state is a licensing question NFPA 25 does not answer, and some AHJs require the annual test to be witnessed or the hydrant flow test on a shorter cycle than five years. Your equipment’s listing and the manufacturer’s instructions may require more, and where they do, they win.
| Task | Frequency | Who may perform | Code (edition) | Record |
|---|---|---|---|---|
| Fire pump churn test — diesel weekly / electric monthly (no-flow: 30 min diesel, 10 min electric) | Weekly | In-house (qualified) | NFPA 25 §8.3.1 (2023) | Run log |
| Fire pump full-flow test (churn, 100%, 150% rated) | Annual | Certified / licensed | NFPA 25 §8.3.3 (2023) | Flow test report |
| Private fire hydrant inspection — caps, threads, drainage, obstruction | Annual | In-house (basic) | NFPA 25 §7.2.2 (hydrant inspection) (2020) | Hydrant log by ID. |
| Private fire hydrant flow test | Every 5 years | In-house (qualified) | NFPA 25 §7.3.2 (5-year flow test) (2020) | Flow test report. |
| Fire water storage tank interior inspection (drained or by diver) ★ | Every 5 years | In-house (qualified)★ | NFPA 25 §9.2.6 (interior inspection) (2020) | Tank inspection report. |
| Tank water level, temperature and heating system check | Monthly | In-house (basic) | NFPA 25 Table 9.1.1.2 (2020) | Tank rounds log. |
| Standpipe flow test | Every 5 years | Certified / licensed | NFPA 25 §6.3.1 (2023) | Flow test report |
Record it: Log the weekly churn run → · The system the pump feeds → · Raise it as a work order →
Other schedules: NFPA 25 · NFPA 72 · NFPA 96 · NFPA 110 · NFPA 80
National consensus-standard baseline with the edition noted per item. Your state, fire marshal, or accrediting body may require more frequent service or licensed personnel where a qualified person is shown. General information, not legal or engineering advice — confirm with your AHJ.
Questions people ask
- How often does NFPA 25 (water supply) require inspection?
- NFPA 25 (water supply) sets a schedule from weekly, annual, every 5 years, monthly intervals. The full task-by-task table with code sections and who may perform each task is shown above, and the calendar builder dates it from your real last-completed dates.
- Which of these tasks can be done in-house?
- Tasks marked Tier 1 or Tier 2 can be performed by trained facility staff with documentation under the national code. Tier 3 tasks require a certified or licensed professional. Starred tasks are qualified in-house under the national code but licensing is commonly required locally — confirm with your AHJ.