Well I'll fit a new water pump and remove the thermostat if it helps you any.
Andy,
Whilst I can hardly contain myself at the prospect of rectal and colonic cleanliness during this years campaign on MB, I'm also wondering whether or not the Comma has enough oomph to clear out some of the flotsam and jetsam that must be lurking up the bullet-holes of a few of the regulars on the camp site. Removal of the thermostat may provide a few more foot pounds per second per second, but petroleum jelly, with genuine petroleum, could be the only realistic way forward. Let's face it, if we're talking about being spic and span in the trouser area, then you should have at least a 'Plan B' up your sleeve. Quite what else may get up your sleeves doesn't bear thinking about, I suggest elasticated cuffs, or carrying out the whole procedure naked.
Have you any idea yet what the cost will be per person? (I say person, because at this stage, I hesitate to use the word 'victim')
H