a spring and ball bearing for an inter pump W140? the soap valve on mine didn't work when I got it, so someone suggested taking it off and checking to see if the bb was stuck, I di, it was, and I used a small screwdriver to poke it free, but it fell out and disappeared. Apparently they cannot be bought from any supplier, its a new unloader assembly, cost c 50 quid. I have a blank in the bottom of it atm, so it doesn't leak, but would like to get it working again.