plumber just came round yesterday as we wanted a quote for a new shower...anyway asked him to fix dripping kitchen taps and he said that it probably needed a new o ring at bottom of spout. He looked for the little screw at the back and said oh there isn't one. Then he said if there is no screw you normally just turn the spout in line with one of the taps and it comes off. Have just tried this and it works. Didn't have to turn water off but taps were turned off (Beware, yours could be different!). A little bit of water came out when i took the spout off. God knows where the o ring goes though! hope this helps
Wanda
December 2007