Clive George pretended :
I think the main microswitches (the ones which switch the two elements,
controlled via the power dial) on my T80i shower are dead - or at least one.
(I resurrected one a few years back, but it's probably time to get new ones).

I know they're available from Triton, but they appear to be fairly generic
microswitches and quite expensive for that - anybody got an idea of
appropriate replacements from elsewhere?

Most likely they will be a standard part, take a look at Maplins
offerings, they have an online catalogue.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk