If anyone else gets wet feet driving their AU, pull the windscreen wipers out, underneath will be three spot welds roughly above the master cylinder.
You will probly have a crack linking the spot welds and wetting your carpet making your car stink.
I dont know if this will be confined to manuals (mine is).

It's up to you how you fix it but given mine was out of warranty i just covered the crack in silicon. Im sure the crack will get bigger but i couldnt see any other way that wasnt going to end with me having an empty wallet.

yea same thing happened to my dads AU ute
it was manual and we did the same thing, no problems since it was fixed

yea same thing happens to me. I HATE it when it rains!!

I also have to park the car on an incline if it's raining, that seems to help. At least now i know what to do.

Cheers

You buggers ought to thankful you live somewhere where it rains.
I'd be delighted to get a wet carpet if it broke the drought!!!