How the flipping eck do they get their pump tubes bent????
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Imagine the pump tube and pump arm as a capital A
When you push the feet together to compress the centre bar (air), the sides of the "A" are trying to bend round the centre bar.
If the pump arm is stronger than the pump tube, then over time the tube will bend towards the pump arm during pumping.
All the best Mick
Last edited by T 20; 17-07-2017 at 08:15 PM.