On Tue, 10 Mar 2009 12:56:07 -0600, F. George McDuffee
wrote:

The price difference with black or galvanized iron


If you feel you MUST use galvanized pipe...remember, you are GOING to
get flakes of Galv in your tools.

Its a given. Its pretty much Verbotten to use galvanized pipe with
CNC machiney, along with teflon tape.

Use both at your own risk.

Gunner

"Human nature is bad. Good is a human product*
A warped piece of wood must be steamed and forced
before it is made straight; a metal blade must be put to the whetstone
before it becomes sharp. Since the nature of people is bad, to become corrected
they must be taught by teachers and to be orderly they must acquire ritual
and moral principles."
—Sun Tzu
*