marie galante
N/A
Let us remember that we are dealing with a couple of lengths of rubber hose, some copper pipe and fittings.
Over the years I have sailed on many boats belonging to other people - folk I would consider reasonably meticulous types and mostly skilled in their specialisations..... from airline pilots to investigative journalists..... and most of those had gas installations. Among those, I/we have frequently encountered rubber hose split/cracked where bent repeatedly due to gimballing, chafed where passing through bulkheads without grommets, crushed beneath spare anchor chain stored in the gas locker which moved in a seaway..... and copper pipe which work-hardened and split due to detached support clips out of immediate sight.
One pipe problem was discovered as a massive loss of diesel fuel into the bilges - the copper diesel return pipe had failed - but when investigated it was found the gas supply pipe was similarly inadequately supported. The whole lot, throughout, was therefore suspect and needed urgent replacement. God knows how long it had been 'loose' and about to let go.
I've found badly-corroded gas regulator valves in gas lockers which had to be thrown away. I've found 'jubilee-type' hose clips loose, and so badly corroded due to salt water action that they could neither be tightened nor released.
There's agreement that a 'professionally' installed and 'professionally' maintained gas system is probably of moderate risk BUT it is crucially dependent on regular 'professional' inspection and maintenance regimes. One might expect that of a professional engineer - like one of the respondents - on his own boat, but how many of the rest of us can spot a possible source of failure 'Just Like That' and actively and frequently search for them along all the out-of-the-way pipe runs and junctions?
How many readers/contributors to this thread have actually done a detailed inspection AND approved safety test of their entire gas installation in the past year? Past 3 years.....? Ever.....?
That's why some here consider the 'risk' to be other than small, and would encourage another close look.