Date: Fri, 09 May 2014 15:00:32 -0400
From: "Larry Banks" <larryb.w1dyj@verizon.net>
To: "Tower Talk" <towertalk@contesting.com>
Subject: [TowerTalk] Buring Bury-Flex
Hi all,
I am running Davis Bury-Flex out to a new 40M vertical in my back yard. (Maine
coast.) As it is going across gravel walkways and near garden beds, and will
not be that far below ground level, I am worried about it getting cut or nicked
in the future from yard work, etc.
My plan is to use 1? sched 40 PVC conduit ? the gray stuff ? for protection.
(I will not be adding additional coax, wires, etc., ever, so this should be big
enough.)
My Concern: the conduit will obviously become full of water ? will freeze
cycles and the expansion of ice inside the conduit compress and therefore
damage the Bury-Flex in any way?
73 -- Larry -- W1DYJ
## The problem with the 4 inch od stuff is the holes are opposite each other...
IE... N-S... or E-W. No point in orienting the pipe so the holes are E-W
either. Otherwise it will have to have one
helluva lot of water in it b4 it spills out the holes that will be 2” up each
side. Better to mount the pipe N-S. Problem with that is... you will let
in water through the N hole..at the top.
## A better solution is to use smaller pipe.... like 1”-2” OD...with no
holes in it.... and just drill some .25 inch holes every foot or so..down the
entire length of the pipe. Then install the pipe so all the
newly drilled holes are all facing DOWNWARDS. Then install some sand + gravel
into the bottom of the trench...b4 you drop the pipe in. Any water that gets
in...will simply run out the holes at the bottom of the
pipe.
## The gray stuff is UV resistant...and found in the electrical dept of your
local home depot etc.
Jim VE7RF
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