|Subject:||Re: [TowerTalk] Pulling wire|
|Date:||Fri, 24 Dec 2004 17:46:50 -0500|
I can almost guarantee that 'drilling' a hole in the pvc will not work....for long.
I originally used the thin plastic drain pipe. I put in a 45 a short stub on the bottom, capped it, and then drilled a whole series of 1/8" holes. In 10 years it accumulated a little dirt, but no problems. The current system is using 4" PVC conduit with all joints sealed. The tower end goes up, into a good size Hoffman box where it's sealed with the soft expandable foam. Not the yellow stuff that gets hard and springs door and window jams.
The conduit runs undereground from the tower to the basement wall. Now where does it get below the frost line. It's only down about 8 to 10 inches at the deepest. Condensation has not been a problem.
A REAL TEE or FOUR WAY is the proper technique. The suggestion of a dry well with gravel is proper technique.
It's *sometimes* easier to pull past a 45.
BTW, it's so cold outside I had to put the snow blower in my heated shop before I could get it to start.
I burned up the starter, trying to start it out in the garage, but after a couple hours in the shop it started on the first pull of the manual starter.
Roger Halstead (K8RI, EN73 & ARRL Life Member) N833R, World's Oldest Debonair (S# CD-2) www.rogerhalstead.com
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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