Gary:

Maybe I've been lucky, but I've had no difficulty in pushing RG-8 through
a 20 foot section of 1" PVC, and on a good day, have even got RG6 (tv
cable) through one that didn't have any other wires in it. Pushing 12-2
w/ground or 14-2 w/ground romex through a similar distance isn't a big
deal unless you've got corners to deal with... Sigh... Your mileage may
vary, depending upon your patience and luck. By the way, it is much more
difficult to push wire uphill than down, or even on the level... Of
course, with a really long run, I'd build it up 20 feet at a time, or push
a pull-tape through it (or blow a nylon through using air pressure) before
pulling a bundle through the PVC.

Another possibility is the seamless black flexible pipe. I've been quite
successful in pushing a single coax through a 1 1/4" diameter 25' long
section of black flexible pipe....

There are lots of possibilities, but for something that is a single coax
run of only 20 feet, I might tend towards just direct burial of a good
grade of coax and worry about it in a few years. Otherwise, it's probably
good to use conduit, even if you have to periodically go out and blow out
the "condensation" the original poster was worried about.

--Rick AH7H



"Gary V. Deutschmann, Sr." wrote:

Hi yea right

I would use standard PVC conduit and boxes, it's cheaper than garden
hose and more impervious to cuts.

I doubt if your going to be able to 'push' a coax through a hose, or
even conduit for that matter. You will probably have to 'pull' it
through using a fishtape.
As the distance increases, so does the friction against the walls of
whatever you are pulling it through.
One cannot even pull a piece of romex through 15 feet of PVC without a
fishtape and some wirelube from your local electrical supply house.

TTUL
Gary