[TowerTalk] Pier pin vs. burying in concrete

[Chuck O'Neal]

Hi folks,
I've seen quite a few installations being planned here starting
out with the botton section of tower sunk in concrete.  What I'm
curious about is why a pier pin isn't used?  On all my
towers I use one instead of the hassle of burying part of a section in 
concrete.  As I understand it, it is virtually impossible to get the sunk
section perfectly vertical, resulting in additional stress in the legs
when the complete tower is plumbed.  Also, it's cheaper.
Comments?
73,
Chuck...K1KW


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