Old 04-21-19, 12:31 PM
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Originally Posted by fietsbob View Post
The other end is screwed into the pump..
I know you knob! What you take me for, some kind of an idiot?

Originally Posted by fietsbob View Post
only check valve is in the valve stem so pump has to overcome the valve core spring , on schrader valve stems
So what overcomes the force of the core spring? Is it the pumping pressure, cause there is no pin inside the hose, have a look for yourself, I attached the photo.

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