Assuming

October 12 2017 at 9:48 PM

Rob in NC  (Login rob3dr)
AR&P


Response to Sumatra 500 will not take air???

you know your air source is good, sounds like your check valve may be gummed up and stuck.

If using a tank, I'd give it a hard blast and see if you can unstick it... otherwise, I'd empty, remove the check valve at the fill end and inspect the o ring. Since you would be removing it anyway, may be an ideal time to install a quick fill on it such as this one...

https://www.pyramydair.com/s/a/Quick_Disconnect_Male_Fitting_O_Ring/2841

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