YM September has an article about the new SOLAS regulations, in which it states that "Boats over 15m (49ft) must have a 6mm diameter pump with a permanent sea connection.....". What on earth is a 6mm diameter pump??
I think it might be a misprint! 6mm is tiny, 1/4" or thereabouts. But the regulation says you must have basically, a fire hose, permanently connected to the sea, outside the engine room, electric or power driven or manual, independant of the engine(s). They could mean the inside diameter of the fire hose? but I doubt it. I don't have one, mine is in the engine room, driven from one of the engines, a winter project! I will have to buy a pump and another bloody seacock, another hole!! Unless I take it off a toilet inlet, No, it will have to be another one, bugger!
I have a suspicion that they are specifying the inside diameter of the nozzle. At a pressure of 1 bar that would give a flow rate of about 12 l/m, not unreasonable for a small fire-fighting hose.
SCV regs demand a 10mm hose nozzle and 'suitable spray nozzle' for fire pump on vessels >15m and < 24m, so it seems unlikely SOLAS would go for anything less. Can't think what they mean about a 6mm job.
Besides getting p****d off with all the creeping regulations from the bureaucrats, and forgetting for the moment the Passage Plan rule, what is the measurement criteria (I'm 14.7m on my Part 1 Registry document, but a bit more than 15m including bowsprit. Can't figure whether I fall within or without these new Regs. No porblem with the orange smoke on the lifebuoy, that's one I'll definitely be doing.
Strange about the fire pump too, because I had thought the earlier regs referred to a pump driven by the main engine. Now it seems it must be outside the engine room, or have I misread? Winter project too for me.