Good idea but you had better check your soil percolation first. In my
(specific) location, the topsoil is 0 to 6" with a high clay content followed
by shale/rock and/or clay. Drainage is almost nil. Here, a "French drain"
would fill up and go nowheres without additional gravel, etc. This problem is
commonplace with septic systems and why sand filters are required.
Tom - WA2BPE
Tom Hybiske wrote:
> David, I agree with WC1M suggestions. Additionally, I would suggest the
> installation of a "T" in the middle of the run that would drain into an
> underground "French drain"; a bucket-sized hole filled with gravel. An
> amazing amount of condensate will accumulate over a period of time, and
> literally bathe your coax and control cables in water. A gentle slope on
> either side of the "T" will allow the condensate to run into the hole to
> absorbed into the ground. I would bring the pipe up alongside of rather than
> thru the base. While the latter looks nice, it might be a PITA later on
> should you ever have to modify your conduit run. When I ran mine, I
> purchased all the materials from Home Depot with also carried the sweeps
> you'll need for the 90's. I have four 90's in my run, and had no problems
> chasing a "ghost" thru the pipe using the exhaust from a shop vac and a
> string tied to a plastic bag. This was followed up with the actual pull
> rope. My 3" conduit contains one 7/8" Heliax,
> one RG8, rotor control, coax switch control, one weather station control, and
> a length of pull rope. With the exception of the weather station, all were
> pulled at once with the help of Ideal wire lube and my really big kid! I
> fed, he pulled. Remember that unless you can chase a future ghost thru the
> conduit, the pull rope you have in there will wrap around the existing cables
> as they were fed thru the run. Future runs can be difficult to pull, so try
> to do as many as you can at once. A larger than required pipe will also
> facilitate a fresh pull line easier than one that's just big enough. Good
> luck with your installation.
>
> 7 3,
> Tom K3GM
> Sturbridge, MA
>
> --- StripMime Report -- processed MIME parts ---
> multipart/alternative
> text/plain (text body -- kept)
> text/html
> ---
> _______________________________________________
> Self Supporting Towers, Wireless Weather Stations, see web site:
> http://www.mscomputer.com
> Call 888-333-9041 to place your order, mention you saw this ad and take an
> additional 5 percent off
> any weather station price.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
|