https://ojsafety.com/firefighting-equipment-service-baltic/There is a moment in almost every Port State Control inspection that sets the tone for the rest of the day. The inspector points at the nearest fire hydrant and says: “Start the emergency fire pump and give me two jets of water.” The test takes about ten minutes — and in those ten minutes more ships pick up a fire-safety deficiency than in almost any other single check on board.
Here is the useful part: those same ten minutes are available to you the day before. Run this test yourself, with a clear head and no inspector watching, and you will find the problem before it becomes a deficiency. Below is the exact sequence our engineers use, built around the four things an inspector is really checking — pressure, supply, leaks, and records.
Why the fire main is a PSC favourite
The fire main is the one fire system that can be tested in full, on the spot, with real water — no simulation, no “trust the logbook.” That makes it an inspector’s fastest way to judge how a ship is actually maintained. A weak jet, a pump that won’t prime, a valve that won’t turn — these show up in seconds and are very hard to talk your way out of. Emergency fire pumps in particular are among the most common fire-related findings worldwide, and a pump that fails to start or fails to deliver can push an inspection from a simple deficiency toward a detainable item.
The 10-minute test, step by step
1. Pressure — can the system hold what SOLAS asks?
Start a main fire pump and bring the fire main up to working pressure. Then go to the two hydrants that matter most: the highest and the most distant from the pump. Open them and read the pressure with both jets running. As a guide, SOLAS expects roughly 0.27 N/mm² at hydrants on larger cargo ships and 0.25 N/mm² on smaller ones, with higher figures on passenger ships — but always confirm the exact value required for your vessel. If pressure collapses the moment the second jet opens, you have just found your problem in private instead of in front of the inspector.
2. Supply — two jets, at the same time
A good reading on a gauge is not the same as water on deck. Open two hydrants simultaneously and watch the jets. Both should throw a solid, continuous stream — not a strong jet that fades to a dribble as the second nozzle opens. This is the most realistic thing an inspector does, because it proves the pump capacity, the piping and the nozzles all work together. Then repeat it with the emergency fire pump alone, isolating valve to the machinery space closed — exactly the scenario the emergency pump exists for.
3. Leaks — walk the line
While the system is pressurised, walk the full length of the fire main. Look at hydrant valves, blank caps, couplings and the visible piping runs. You are hunting for weeping joints, corroded or wasted sections, dripping spindles, missing or hand-loose caps, and valves that are seized and won’t fully open or close. Confirm the international shore connection is on board, complete, and stowed where it can actually be found. A small leak is minor on its own — but to an inspector it signals a system nobody is walking.
4. Documents — the test only counts if it’s recorded
A perfect test with no record is still a finding. The emergency fire pump should be started and run under load on a routine — typically weekly — and logged. Pressure tests, hose and nozzle checks, and any defects and repairs should all be traceable in the planned maintenance system. Most important: make sure the records match what the inspector sees in front of them. A logbook entry reading “tested, satisfactory” next to a hydrant that clearly hasn’t been opened in a year is worse than no entry at all.
The deficiencies that catch ships most often
- Emergency fire pump won’t start or won’t prime — lost suction, valves in the wrong position, flat battery or no fuel on a diesel unit.
- Pressure drops below the minimum as soon as the second jet is opened.
- Corroded or wasted fire main piping — thin sections, temporary clamps, soft patches.
- Seized or leaking hydrant valves and missing or loose blank caps.
- Isolating valve between the machinery space and the fire main inoperable.
- International shore connection missing, incomplete, or buried where no one can find it.
- Hoses and nozzles perished, split, with damaged couplings or missing entirely.
- Records that don’t match the physical condition of the equipment.
The emergency fire pump — the one that catches people out
The emergency fire pump deserves its own paragraph because it is independent by design: its own power source, located outside the main machinery space, expected to work when everything else has already failed. That independence is exactly why it gets neglected — it’s out of the way, rarely used, and easy to forget between drills. A diesel-driven emergency pump with a flat battery, stale fuel or a lost suction is a textbook detainable item. The fix is simple and free: run it under load, on its own, every week — don’t just turn the key and listen.
How OJ Safety helps you pass the first time
OJ Safety is a RINA-approved service supplier based in Klaipėda, working across Baltic and North European ports and drydocks. Our engineers inspect and test fire mains, main fire pumps and emergency fire pumps against SOLAS and FSS Code requirements, find the weak points before PSC does, and supply class-acceptable documentation along with any spares you need to close the gap — hoses, nozzles, couplings and more. Whether alongside or in drydock, we typically mobilise to Baltic ports within 24–48 hours.
→ See our Firefighting Equipment Services
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