JumbleDuck
Well-Known Member
A neat and effective way of producing an explosive mixture faster than natual processes would, but otherwise more theatre than practical. I think the idea may have originated in The Art of Coarse Sailing.
Did I remember to turn off the gas?
- Thread starter jdc
- Start date
Gary Fox
N/A
A large pair of bellows would be ideal, perhaps with an extension tube.
You can get sparkproof 12v engine-room fans quite cheap, most gin palaces have them.
A fore-hatch wind scoop, as used by tropical cruisers, would also work pretty well.
It's a good idea, joking aside, for skippers to have a Prior Plan for when/if you do get a boat stinking of gas.
You can get sparkproof 12v engine-room fans quite cheap, most gin palaces have them.
A fore-hatch wind scoop, as used by tropical cruisers, would also work pretty well.
It's a good idea, joking aside, for skippers to have a Prior Plan for when/if you do get a boat stinking of gas.
TernVI
Well-Known Member
Just open all the hatches and give it time.
JumbleDuck
Well-Known Member
Take sprouts off the menu.
Beelzebub
Well-Known Member
penfold
Well-Known Member
Unlikely to be anything to do with gas, they tend to explode rather than burn.
Beelzebub
Well-Known Member
Granted but it is vaguely on topic
Barnacle Bill
Well-Known Member
Good advice. My manual bilge pump does move air/gas reasonably well - as evidenced by the fact that it's able to prime itself over about 10 feet of large diameter hose, uphill, when pumping the bilge; but his won't be the best solution in all cases.
My real gripe is with the gas alarm I was forced to fit for coding. I don't think this device ever made a genuine discovery of leaked gas, but it had a habit of going off when the battery voltage dropped a bit, say at 4am with the anchor light on. The only way to get rid of the alarm (and let everyone get back to sleep) was to turn it off, i.e. do exactly what you're not supposed to do in the event of a gas leak, operate an electrical switch!
zoidberg
Well-Known Member
I sailed intermittently with a friend who acquired a new-to-him boat, which was then propped up in a boatyard. He asked me to help prep the boat for launching and moving to his preferred moorings. On the two occasions I joined him for a 'fettling session', whenever he switched on the shore power, the gas alarm sounded off.
The sensor was located deep in the engine bay. His reaction was to turn off the alarm.
I suggested, more than once, he get the yard to have a qualified employee sort out the gas leak. He declined.
I made my excuses and left.
The sensor was located deep in the engine bay. His reaction was to turn off the alarm.
I suggested, more than once, he get the yard to have a qualified employee sort out the gas leak. He declined.
I made my excuses and left.
Gary Fox
N/A
Quite right, either a faulty sensor or presence of gas. And a careless attitude to your concerns!
Also my tangential 2d-worth is: buried deep in the engine bay is a good place to mount engines and bilge pump suctions, but nothing which needs checking regularly..
Gary Fox
N/A
Yes it is vital for alarms of any kind to be accessible, checkable and generally user friendly or they will be neglected..
capnsensible
Well-Known Member
They need to be very well engineered and reliable with back ups if they are in the reactor compartment though. ?
Gary Fox
N/A
To add to my own post, perhaps your pal had read of the heavier-than-air properties of LPG, and mistakenly thought the sensor had to be under everything else.
D
Deleted member 36384
Guest
Pilot Gas alarm sensors, if that was the type, are easily damaged with chemical vapors, especially from solvents. This is noted on the instructions.
I replaced the head on mine this year as it was acting exactly like you mention, despite no gas. Replacement solved the issue.
graham
Well-Known Member
Pilot gas alarm on our boat is permanently on unless both batteries are isolated.
I test occassionally with a gas lighter.Tiniest amount sets it off. A small plastic bag and rubber band can protect it from paint fumes or whatever. Failure to do that cost me £40 for a new detector head.
I test occassionally with a gas lighter.Tiniest amount sets it off. A small plastic bag and rubber band can protect it from paint fumes or whatever. Failure to do that cost me £40 for a new detector head.
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zoidberg
Well-Known Member
It's a bit difficult, 'pvb', to ask him that question now, as he's long gone to Fiddler's Green. From my memories of the man, had he the slightest inkling that the structure AS IT WAS THEN was in any way deficient, he would certainly have seen it remedied.... as would most if not all of the very professional and conscientious JSASTC's skippers and mates I knew 'back in the day'.
sgr143
Well-Known Member
Attached for your amusement, our "leaving checklist". We cross each thing off only when it is done. The below-decks one gets done in sequence, so that the seacocks are not closed, and the bin not emptied, while they might still be needed in the clean-up. The list comes home with us in my pocket, so when, a few miles up the M27, I think... "did I switch off the gas? / switch off the electrics? / close the hatches ? etc. ", I can look at the list, see that that item is crossed off, and go on my way rejoicing.
Several items have been added only after bitter experience: the "check in oven" for food items was added a couple of days ago after we realised, luckily only about 10 miles into the 80-mile trip home, that we had left half a pasta bake and several baked potatoes ready to fester away in there.
Several items have been added only after bitter experience: the "check in oven" for food items was added a couple of days ago after we realised, luckily only about 10 miles into the 80-mile trip home, that we had left half a pasta bake and several baked potatoes ready to fester away in there.
zoidberg
Well-Known Member
I like that, but.....
.....I'm getting to the stage where I'll need a string tied around my finger to remind me to look in my jacket pocket - which has a similar piece of string tied to the zipper - which holds a Post-It Note reminder of where I put the checklist.
pvb
Well-Known Member
There were so many faults and evidence of non-compliance on the Lord Trenchard that it was an accident waiting to happen. Boats owned by the Crown aren't required to comply with the regulations affecting lesser boats. Maybe this should be changed. But, in any case, all it needed was a totally incompetent crewman to have the job of attaching a gas bottle, and "BANG".
capnsensible
Well-Known Member
A reminder to you and everyone else then, that you are only a moments lapse away from an accident. Go careful out there. You wouldn't want anyone to think you are totally incompetent...
