Clever Valve!

If there's one thing that I've learnt over the years from dealing with all things technical, it is that the simpler a tool is meant to be the harder it will be to use!

So it proved when I tried to pump up bicycle tyres this afternoon using a pump with 'Clever Valve' technology.

To be fair to the pump, I think that it was inoffensive in itself and that I simply proved yet again that I'm not 'clever' with technology of this nature!