steel gas tank vent

forty5goingon65

Petty Officer 3rd Class
Joined
Aug 3, 2009
Messages
81
i put my gas in my portiable red steel gas tank and when sitting in my garage it built up pressure and started to come out were the line connects so i un did the lid and released the pressure so i put it in the boat and connected the line buy when i checked it about 5 minutes later it was not leaking but when i opened the cap there was a lot of pressure built up inside the tank could somebody tell me if that is normal is the pressure release on the cap like a rad were it will open after so much pressure or is maybe the vent is pluged on the gas cap thanks forty5goingon65
 
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