my bike pump

I had bought a small, functional and easy-to-carry-around bike pump from one shop in Javastraat a couple of months ago - I guest just for 3 euros or so.. But I could never make it work..

One night my iranian neighbours told me that one of them had flat tire, and they wanted to borrow my bike for an hour. I offered them my pump in the hope that they could manage to make it work.. And no..

I tried it few more times, but no way.. Then today I decided to take it to office. 'Maybe Maikel would want to have it' I thought; 'otherwise it is not any use to me'.

Then, again he has taught me something :)
He just told me the trick, and a couple of minutes ago we tried it on Olja's bike. It worked perfect!. With just a couple of pumpings, the tires were full of air..