Each building's three-year and five-year work, dated from the reports already in your files.

Quarterly and annual visits recur on a fixed cycle, so they stay on the schedule. The longer items don't: a pipe assessment last done the year the building changed hands, a dry system's three-year tests, a standpipe hydro, heads in a corrosive area due for sampling early. Those dates sit in old reports, some from the company before you, and someone has to dig them out before the owner can budget the work.

In the proof of concept, AI reads copies of each building's reports and drafts a long-interval calendar for that building: each item on each system, when it was last done and which report says so, the next date that implies, and a flag wherever the history runs out or two reports disagree. It books nothing, tells no owner and changes no report. Your service manager lays each draft beside the dates your office really set.

Some five-year items share a drain, and a drain can reset the clock. A 2022 PHC Pros article on NFPA 25's internal assessment of pipe notes that it shares a five-year cycle with the internal inspection of alarm and check valves, so one drain can serve all of them, and that a system drained for another reason can be assessed then, which starts the five years again. In a high-rise with one system per floor, the article describes assessing every other system each cycle, so each comes around every 10 years, and a system back in service after more than a year shut down triggers a full obstruction investigation rather than a routine date. The draft dates each item from the last time that system was opened, and names that report.

Dry systems and tanks run on three years. QRFS's guide to dry systems, quoting NFPA 25's 2020 edition, has each dry pipe valve trip tested at full flow every three years and the system tested for air leakage on the same cycle: 40 psi held for two hours with no more than 3 psi lost, or normal system pressure for four hours with the supply shut off. Steel tanks without verifiable corrosion protection get an interior inspection every three years, other tanks every five, and tank level indicators are tested for accuracy every five. A building with a dry system, a tank and a wet riser can carry cycles that never line up, so the draft keeps each separate.

Hydrostatic tests depend on what is installed and which edition applies. The FDC piping test, from the connection to its check valve at 150 psi for two hours at least once every five years, entered NFPA 25 in the 2014 edition as section 13.7.4, according to NFSA's history of the standard. New York's Department of State quotes it as 13.8.5 from the 2017 edition, the one its 2020 state fire code points to. Manual standpipes and semiautomatic dry standpipes carry a separate five-year hydro at 200 psi, or 50 psi over maximum pressure, for two hours. A building whose reports all predate that test may show no FDC hydro at all, which the draft marks as a gap.

Sampling ages change with the head and with the edition. QRFS's summary of NFPA 25's sprinkler rules puts heads in harsh or corrosive environments on five-year testing or replacement, listed corrosion-resistant heads at 10 years and every five after, and standard-response heads on five-year testing once they reach 75 years; heads made before 1920 are simply replaced. When one sample fails, every sprinkler that sample represents is replaced. Dry sprinklers show how far editions can drift: 10 years to the first test in the editions from 2002 to 2017, and 15 in the 2020 text QRFS quotes, before the 2023 edition moved it again. Each drafted date names the edition it assumes; choosing one stays with your service manager and the jurisdiction.

The history belongs to the owner, and it has holes. NFSA's guide to NFPA 25 record keeping has records kept for one year after the next test of the same type, three-year and five-year work included, and treats the reports as the property owner's, with acceptance test records kept for the life of the system. A building taken over from another company may arrive with one five-year report or none. Your service manager will check first: items missing from a building's calendar, dates borrowed from the wrong system, cycles a drain should have restarted, gauge and extinguisher hydrostatic dates left off, and any date stated with more confidence than its report supports.

Once your service manager says yes, the job runs for about 30 days, updating calendars as new reports arrive.

A person approves every date before it goes on your schedule or into a note to an owner. Each shows the item, the system, its report and its edition, and anything uncertain arrives flagged.

Before the live run, you sign a fixed price set once the test is over. Impairment paperwork, deficiency quotes or any other job is priced on its own, and monthly support begins once a job is live.