On Friday, September 15, 2006 6:06 PM [GMT+1=CET],
Mr. Raymond Tylicki <[EMAIL PROTECTED]> wrote:
> So how would you prevent some asshole from opening up both gates of
> the locks and drain the canal?
Water pressure will stop both top and bottom gates being opened at the same
time. Lack of a windlass (the handle used for operating the mechanism) will
usually prevent the paddles/sluices being opened at both ends of the lock at
the same time.
It does sometimes happen that somebody will defeat these things and manage
to drain a canal, sometimes accidentally but more usually with malicious
intent. Such people are described in many ways - some even less
compimentary than the one that you suggest.
--
Bob
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