On Feb 8, 10:47*pm, The Other Mike
wrote:
On Fri, 3 Feb 2012 08:27:02 -0800 (PST), thirty-six

wrote:
On Feb 3, 3:57*pm, The Other Mike

The master cylinder to air boundary is not the only route for the
water to get into the fluid, some also migrates through the rubber
hose walls. * I've seen this myself by having a sealed set of bellows
above the master cylinder. *The fluid was wetter after a few months
use, despite no fluid being directly exposed to atmosphere.

You might be better off with extra-thick johnnies.

The vehicle wouldn't pass an MOT or a scrutineers inspection without a
properly engineered reservoir cap.

--

Whadya want, iron tyred wheels as well?