On Thu, 23 Jul 2009 04:22:35 -0700 (PDT), Matty F
wrote:


But the type of toilet is irrelevant - for hygiene reasons I'd like a
foot pedal to flush the cistern.

Hinged plate on the floor with a Bowden cable to the flush mechanism.
You will need to clamp the cable but a car scrap yard will probably
have an old accelerator or clutch foot pedal which you could use at
one end and fabricate a simple bracket at the other.