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Old 25-02-2011, 18:14   #1
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The amazing expanding jerry jug

I just noticed recently that the small fuel jerry jug I have likes to expand in the sun. And there's isn't much fuel in it right now. Little nervous about what it will do if full.

And not storing it in the dink isn't an option, since I have one of the little Honda 2HP motors. Of course that's assuming the dink shows back up

I'm even more nervous about what I'll do when I run out of beer now.
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Old 25-02-2011, 18:34   #2
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Re: The amazing expanding jerry jug

I assume you mean gasoline, Ours have done this for years both on deck and in the dinghy. You can leave the cap cracked a bit, if there is no vent in the tank and if there is no danger of spillage, or just open it occasionally to let out the vapors. BUT NO SMOKING. Or you can make a light colored cover for it and that will reduce it. Chuck
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Old 25-02-2011, 18:35   #3
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Re: The amazing expanding jerry jug

Open up the vent on the back of the can and go get more beer quick.....
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Old 25-02-2011, 18:46   #4
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Re: The amazing expanding jerry jug

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Open up the vent on the back of the can and go get more beer quick.....
Unfortunately most of the new tanks don't have vents since this is a fuel jug and not a gas tank. Chuck
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Old 25-02-2011, 19:45   #5
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Re: The amazing expanding jerry jug

Let the pressure out. Then Squish the sides somewhat before resealing it. This will keep it pressure negative slightly.

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Old 25-02-2011, 20:18   #6
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Re: The amazing expanding jerry jug

a. It won't expand apreciably if full; it is the gas/alcohol mixing with the air that expands. Less air, less expansion.
b. The pressure is self limiting and should not damage the can as long as it is not in an enclosed space, such as a car. However, a cover or keeping it out of the sun is smart. At least put it under the seat.
c. Venting the can will result in water absorption every time it cools. Better, keep it out of the sun. Leaving the vent cracked also presents a more serious spill hazard (it's fire I fear, not the epa) than the risk of tank damage.
d. Thank Gore and friends. The significantly higher vapor pressure is a result of e-10.
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Old 25-02-2011, 20:45   #7
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Re: The amazing expanding jerry jug

Just cover it from the sun. A wet towel works great.
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Old 25-02-2011, 21:26   #8
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Re: The amazing expanding jerry jug

Boyle' law.
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Old 25-02-2011, 23:15   #9
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Re: The amazing expanding jerry jug

Not to hijack the thread, but does anyone have a jerry can to recommend (for diesel)? The Moeller/Scepter stuff gets terrible reviews on Amazon...
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Old 25-02-2011, 23:25   #10
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I can recommend Blitz. If you are able, buy them outside USA so you don't have to put up with those dreadful enviro pourer thingies. The first time something hits one, as it most assuredlly will, the pourer will snap off.

Blitz USA: Item # 81054 5 Gallon Enviro-Flo Plus Diesel Can
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Old 26-02-2011, 00:32   #11
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pirate Re: The amazing expanding jerry jug

Quote:
Originally Posted by Microship View Post
Not to hijack the thread, but does anyone have a jerry can to recommend (for diesel)? The Moeller/Scepter stuff gets terrible reviews on Amazon...
Best ever diesel containers I've ever had were freebies from the desalination plant in Gib...
green 25L chemical containers... quick rinse and tip and leave to drain...
8 of those carried us through the Med for 3 1/2yrs... strapped up nicely midships..
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Old 26-02-2011, 10:16   #12
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Re: The amazing expanding jerry jug

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Not to hijack the thread, but does anyone have a jerry can to recommend (for diesel)? The Moeller/Scepter stuff gets terrible reviews on Amazon...
I prefer the Scepter. They strap up to the rail a lot better and most of the nozzle is hidden away.
They can be ordered through W. Marine.

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Old 26-02-2011, 10:46   #13
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Re: The amazing expanding jerry jug

I'm slowly swapping-out my (3) fancy eco cans for older cans I can actually pour from. 2 down, 1 to go.

The mechanism is pointless enough on 5-gallon cans; no home owner uses enough fuel to matter, and OSHA prohibits commercial users from using plastic cans. Even worse are the 1-gallons cans; I'm lucky if I can get 75% of the gas actually in the chain saw, unless I use a funnel, which defeats its functionality completely. Regulation by committee, I guess.
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Old 26-02-2011, 11:11   #14
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Re: The amazing expanding jerry jug

BTW- If you go to Canada you can get the tank with a different nozzle or just order the different nozzle.

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Old 26-02-2011, 14:53   #15
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Re: The amazing expanding jerry jug

Hmm...this could be what that left over sunbrella is for. Figures it's caused by ethanol!
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