A much cheaper way to go..........1/2 inch copper pipe, soft or hard. More
surface area, pure copper, and very easy to jet down. For those who can't
jet due to location, nr 3 rebar fits perfectly inside 1/2 for reinforcing to
take the hammer blows.
I have done this for all my rods.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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