Nevermind how much water, what was the speed?
the bloke was on here a while ago saying how they were going to put the MIRA report on their website and provide this and that detail blah blah. That was months ago and there's still nothing.
My opinion is that it is very suspicious, and brodex have done nothing to prove what speed the test was done.
Purely because they havent provided any form of evidence, I think the test was done at 10mph. Go on brodex, prove me wrong! (I wont hold my breath though)
And lets face it they dont exactly have a great track record of telling the truth on this subject do they lol