Could anyone give me some tips on how to fix this tap? It's been fine for many years but this morning opening the tap results in just a very small dribble of water. The cold tap works fine. I've given the diverter a bit of a workout, makes no difference. The tap turns freely, just no water comes out (well just a dribble). I have no idea how to fix it but can't afford to pay hundreds for this at the moment.