Re: RE: Antifreeze

27/10/2003 10:23:53, [email protected] wrote:

>This system is far from perfect and will always require near daily 
topping
>up, especially in hot weather, or enthusiastic blatting. 

Eh? It shouldn't, you know. The system's pressurised (or should 
be) - it's only the overflow / reserve tank that's open to 
atmosphere. The pressure cap vents 'spare' fluid into the tank, 
and vacuum pulls it back in as the coolant cools & shrinks (as long 
as there are absolutely no air leaks anywhere and the bottom of 
the pipe stays covered). 
Genuinely atmospheric systems died off absolutely ages ago. 
Thirties? Forties? Fifties at the latest, at a wild guess.

Steve
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