Thank you very much for the input.

The concept of hot-water geysers at Giza really appeals to me on a
number of levels. I can just picture sailing up the Nile and seeing
these. Unfortunately I can't find a geologist who believes it's pos-
sible for these to have existed in the absence of active vulcanos even
on a transform plate boundary.

Hot water geysers are caused by water becoming superheated but not being
able to boil because of the large amount of hot water sitting on top of
it. Eventually the water at the top gets warm enough to boil and as it
begins moving upward it takes the weight off the water below it which
boils explosively spraying water far in the air. The water from the water
table gradually refills the chamber and heats up to repeat the process.

Cold water geysers are quite similar except that the water is saturated
with carbon dioxide. When the weight is relieved from the column of wat-
er it too, will fizz up and reduce the weight below. Given sufficient
water supply these can run nearly continuously and can spray as high as
hot water geysers.

Ducting would have been a great difficulty for the ancients but deflecting
the spray should not have been. The unfinished top of the pyramid might have
made an excellent catch basin for the water to be diverted into the queens
chamber.

The more I read the pyramid texts the more I think Set tried ducting one
of these "double doors of heaven" and inadvertantly shut it down.

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Man fears the pyramid, time fears man.