Water temps at various depths

Jim and Phyllis Hurley wrote:
Cold water sinks. In the winter, the top may freeze, but the bottom will be
cold if you don't circulate. The ground, however, will heat the pond as
compared to the freezing air. Earth is essentially your
buffer/insulator/stabilizer in both summer and winter.



the ground is 50-55F at 4-5' depth and thats why
water pipes are set a 4-5' below ground depending
on what zone your in.


his 21' depth is assuring it will never freeze.



Jim's brother made
an eco house that cools in the summer from the earth and stores winter sun
in milk jugs of water. Heating and cooling are accomplished by reversing
the fan that blows the air. One fan!

Phyllis



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