[TowerTalk] Refurbishing tower sections

[doc]

> Perhaps it is wise, when refurbishing a galvanized tower section that 
> shows some rust, to inspect the inside of any tubular member for rust or 
> other deterioration.  Rust is a symptom of deteriorating galvanized 
> coating, which may, in some cases, occur inside a tube at a rate greater 
> than on the outside.  If the galvanized coating fails on the inside, 
> painting the outside only may not make that tower section safe to use.
> 73 de WOØW

What do you use to inspect the inside of the
tower legs?

I am guessing one could use a fiber optic
gadget of some sort as one would want to
see the inside of at least one crossmember
joint.

-- 
Thanks! & 73, doc kd4e  http://bibleseven.com
Ham Links: http://bibleseven.com/hl.html