Bill, I don't think there's anything other than what Brian says makes sense;
...There is (should be) a small pin above where the ball sits to stop it doing this. .....
I didn't find that, but when I was cleaning mine out, I tried to get the pipe out but but it resisted and I relented...so I settled for doing as I suggested earlier. It seemed to work ok
Only other thing I thought of later is to maybe run a bit of old clutch or bicycle brake/gear cable down like a plumber/drainer tool, or slip some plastic tube on and suck
.
Brian, a pic of those S/A cases would be interesting if possible?
Pete- maybe I shouldn't ask, but how do you get 'Peter' out of 'bobandbec'..I thought you'd be a Bob
?