05-24-2013, 09:22 PM
[#0000FF]What kind of pump are you using to air it up? If it is a high volume low pressure pump there will not be enough pressure to force the valve open during the airing up process. You will have to air it up as far as you can...with the valve open manually...and the finish it off with a higher pressure dual action pump. Or, just use the dual action pump all the way with the valve closed.
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