That was my first suspicion when it was mentioned that it was "Working but not very well" at the brush, but okay on the stick. But then again it was only twenty of our Monopoly money (15 or 16 of the Queen's heads)
Having had a quick butchers after sneaking it into the man-cave whilst Mrs H wasn't in the kitchen looking out, it would appear that the changeover peg is intact and functional. The lower link hose appears to be the culprit.