I don't really think calling them names is appropriate here mate, like it or not checking that people have the required safety gear is A) Part of their job & Something most people are more than happy to cooperate with if it helps keep fools & idiots off our waters.
Some here may have been a part of or at least recall a recent post on this very subject, it was in fact at my request that the post be closed until the EXACT requirements & information could be passed on tho Raiders, there was a definate potential for members to get the wrong information on this subject so I volunteered to research it & find out. Unfortunatley I have found the same difficulty in trying to dig up exactly what is your responsibility as a boat owner with regards to fire extinguishers and in particular their maintenance & servicing. Its pretty clear what type & sizes you need but when it comes to maintenance & servicing its a real hard area to nail down.
It very much seems to be open to interpretation & this for me is kinda sad as there is alot of paper regulations that dont really do much except cover the proverbial bums of the buearocrates. Having said that, I can tell you that during my investigation which is too date incomplete (I appologise for that, I'll take the wrap for the lapse in updates on this although I am still waiting for several authorities to return my calls & emails) one quote which pretty much summed it all up for me was that during standard on water checks, the relevant authorities would more than likely check "Gauge pressure, location & general condition" of any fire equipment on recreational vessels, however, a footnote was added stating that if (God forbid) any incident occured where an investigation was required then it would more than likely come to pass that a much more "Thourough inspection of all saftey equipment" would be carried out & that may well include what the service & maintenance was for that vessels equipment.
The above footnote gave me all the information I needed to know (Even though it doesn't answer the real requirements question) and I have undertaken to ensure that all my extinguishers are serviced every 6 months & that they are checked in accordance with the manufacturers instruction. The fact that I use fire extinguishers for my work & already follow the recomendations of the supplier (Every 6 months inspected & serviced) for a low cost of about $4 per 1 to 4.5 kg extinguisher & $6 for 9kg extinguishers also helps make my decision easy. I do however understand that the question still remains as to what the EXACT requirement is.
For my money, the biggest issue is the small, no name brand extiguishers that are sold across the country which don't have gauges, don't have maintenance requirements on them but still detail that they are compliant with Australian Standards. How the hell is the average Joe meant to know those extinguishers may in fact be outside the requirements?
I am still working on a final & definative answer for all Raiders to reference, when I have it I will post it immediately.