Brian from sunny Suffolk wrote:
> I hope I have posted this to the right place as I can't remember which
> Barry the ex Firefighters posts to.
> We are in Birmingham at the moment and the fire brigade still maintains
> the doors to drop suction hoses into the cut, they are even included in
> new bridges. The one we passed yesterday looked quite high from the
> water. I know the theory but what is the practical maximum the brigade
> can suck water to their engines ( I know they don't suck and I know its
> lifted by atmospheric presser and it can be lifted higher in times of
> high pressure etc.)
Atmospheric pressure will lift the water to 32 feet (or thereabouts).
IIRC, the normal maximum working height is 28 feet.
Terry Streeter
NB Arun - Middlewich
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