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I think that everybody is forgetting that when you pour a base that
you should have approximately 6" to 12" of crushed rock at the bottom of
the hole.
This becomes a "DRY-WELL".
Under normal weather condx, the amount of moisture seeping into the
base hole is minimal, and the DRY-WELL should take care of the water and
dispense it slowly back into the soil. Under heavy weather condx or
continual flooding, if you live in an area as such, then you might want
to install a SUMP-PUMP to extract the excess water.
My $.02
73, de Howard W3CQH
______________________________ Reply Separator _________________________________
Subject: Re: [TowerTalk] Now What?
Author: Malcolm Clark <rudder1@ibm.net> at Internet-E-Mail
To: <towertalk@contesting.com>
Date: 4/14/98 11:45 AM
K7LXC wrote:
[snip]
>
> > I know have questions about my original Idea. >
> Being a renter and a Ham I am a bit challenged.
> > I am planning a tower install sometime this year, and have been doing lots
> > of reading and asking questions. Up to this point my thought was to just
> > dig a great big hole and fill it with concrete and hope like hell the
> > Landlords did not find out how deep it was.
>
> Pour the concrete so that it is below grade and cover it with dirt when
> you leave. In the worst case, you can rent an electric jackhammer and take out
> all or most of the concrete when you move.
>
What happened to the LXC prime directive???? The Rohn specs for concrete
bases for bracketed, freestanding, and guyed towers call for at least
four inches of the base to be above grade. They also require the top of
the base outside the bolt circle (or equivalent for an imbedded base) to
be sloped for drainage. Any base poured below grade is effectively going
to become the bottom of a catch basin when it rains! Not the best way to
mitigate corrosion.
[snip]
73
Malcolm KR4HP
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