ok thanks i will look. the shower is not a power shower though, no electric used, just a manual mixer type.
if i do have a new shower it will be messy as the old one has a dia cut out of a tiled airing cupboard wall!! and unless a dial mixer of the same diameter is available, i don't think...
i am not sure of the model - it over 10 years old though. although looks good and gives a good shower. it is white (although i believe at the time could have had it also in crhome)!! - is has a dial, a lever that adjusts the temp to hot or cold, and is fed from a hot water tank and a cold...
the button lever when pressed pushed a plastic valve (not a normal siphon) which then lets water go into the pan.
the button does seem stiff or stuck inside when pushed - maybe i should clean it up with grease as you mentioned?
we've got a top push button toilet cistern. it is close coupled. recently when we fush it, the button gets stuck down, and we have to take the lid off all the time to push it back in - a long leg type lever comes out when the button's pushed. how can we fix this-why's it started to do this...