Vax rapide has stopped releasing water?

Model: V-021

It never really released water very fast ( a trickle) but i'd just go slowly, now there's nothing at all and i've stripped it down, checked the pipes aren't blocked by blowing through them. The motor works fine so it can't be the pump. I've spent weeks on-line looking for a solution, vax were no help and told me to take it to a specialist or send it to them for £25 (as i'm outside of warrenty).

Any info would be good such as a diagram of the inner workings of the machine.

thanks katy