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Old 03-26-2013, 10:02 PM   #1
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Jerry can help- water only vs gas

Could somebody explain why some jerry cans are labelled "Water Only"? Is there a structural difference or is this purely to keep water-designated cans pure? Could a plastic water-only can be used to transport gas in a pinch (less than 48 hours)? Much thanks!

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Old 03-27-2013, 12:08 AM   #2
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Use water containers for only for water, fuel containers only for fuel. It's not a matter of the type of plastic being incompatible with gasoline, it's a matter of health safety. Once you put fuel into a container, the container is contaminated and no longer safe for storing water. Labels on the containers ensure you know what type of liquid is in the container, as well as anyone else (such as emergency personnel.)

I would not recommend you use any container that has held gasoline, to later hold water intended for human consumption.

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Old 03-27-2013, 09:28 AM   #3
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"Can you use a water tank to transport fuel in a pinch?"

Long answer, No. Once you put the fuel in you have contaminated the container for ever.
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Old 03-27-2013, 09:42 AM   #4
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^ Short answer, yes. You will take a risk on not getting all the water out of the container too if you do it, and you will wreck the container for the future. If you did such a thing, I would immediately recycle the container used. It would be much cheaper and safer buying a 1 gallon emergency gas can and keeping it empty under the rear seat (considering you have a JKU).

On my TJ I could store a 1 gallon can behind my spare on the stock spare holder (once I took off the third brake light). I used a bungee cord to hold it on. Worked for years. Stored empty of course.
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Old 03-27-2013, 12:20 PM   #5
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i know a few guys who carry/have used these: ItzaGasCan Collapsible One-Time Use Gas Can
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Old 03-27-2013, 07:46 PM   #6
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I have an emergency gas tank that folds up nicely and fits in my emergency gear box. Hold about 10 gallons with a siphon attached. No need to use it for water, but I suppose I could have if I haven't used it as a quick gas tank first.

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