Originally Posted by unlucky
I have never looked at an nrs pump or the check valve but a check valve stops a fluid from from flowing in one direction. Functionally there would be no difference. The check valve can be omitted if you are inflating a leafield or H-R valve. Only a military valve needs a check valve. You may also want a check valve for a pool toy or air mattress.
Quick Q... you mentioned a base on my earlier post, we're you refering to a foot hold or the outlet plumbing... I just noticed I posted the wrong pic. It does not show the outlet at the bottom. Do you build a "foot peg" or "hold" like Carlson or just wedge the pump between your feet?
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