After 7 years my Aqualisa Aquavalve 609 Thermastatic shower has started to drip water from between the on off control knob and the temperature control lever assembly. Does anyone know the likely cause, is it a simple o ring that needs to be replaced or the whole cartridge.

Godfrey Anderson, September 2009

Did you ever get an answer to this Godfrey? My 609 shower usint is about 7 years old and has just started doing the same thing...

Dave, October 2009