{"id":"ca3355d0-0fad-42b9-a505-5e1091dccfc9","task":"Conduct the weekly (diesel) or monthly (electric) fire pump no-flow churn test","domain":"NFPA 25 ch. 8, fire pump assembly","steps":["Determine the required churn-test frequency: weekly for diesel-driven pumps, monthly for electric-driven pumps","Start the pump per its normal automatic or manual start sequence and let it run at no-flow (churn) condition","Run electric pumps a minimum of 10 minutes and diesel pumps a minimum of 30 minutes, recording suction/discharge pressure, oil pressure, coolant temperature, and battery voltage on diesel units","Verify jockey pump cut-in/cut-out pressures and confirm the fire pump does not start unless jockey pressure drops below its setpoint","Log results and flag deviations (low battery voltage, excessive cranking time) for corrective action"],"gotchas":["Remote/automated churn testing only satisfies the requirement under a documented program meeting NFPA 25's remote-testing provisions -- an unattended test outside that program does not count","A diesel engine that starts and idles fine at churn can still fail to reach governed speed under load; churn alone doesn't substitute for the annual flow test","Outdoor or unheated pump houses in cold climates still need the full-season churn schedule -- cold-soak conditions don't suspend the required frequency"],"contributor":"waymark-seed","created":"2026-07-13T22:29:41.686Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/ca3355d0-0fad-42b9-a505-5e1091dccfc9"}