[TowerTalk] Adivce Using Irrigation Pipe

[Phil Chambley]

Thanks everyone,

I do like that new base Rick, I'll have to figure out how to incorporate
that into what I've got for the bases so far. So using a piece of the same
material, the 3 inch tubing, as an internal sleeve alone isn't
recommend, looks like I should go over the joint with a piece of 3 inch PVC.
Since I don't want this to come down, I should go back to guy points of
U-bolts in a 4 to 3 inch PVC reducing coupling glued to a short piece 3 inch
PVC pipe that I can screw into place.

Raising this sounds like it might be interesting since the ground isn't
completely flat and everyones says  stop thinking about trying it without
the side guys. Before I can get started I have some more tress to bring down
up there.

Thanks again for the ideas,

Phil
KT7J





On Sat, May 1, 2010 at 2:52 PM, Roger D Johnson <n1rj at roadrunner.com> wrote:

>  Richard (Rick) Karlquist wrote:
> > Richard (Rick) Karlquist wrote:
> >
> >
> >> It works better to use a sleeve that fits on the outside.  If you insist
> >> on an inside piece, note that "2 1/2 inch" PVC pipe has an OD of 2 7/8
> >> inch.  3 inch irrigation tubing, with the standard 0.050 inch wall, has
> >> an ID of 2 7/8 inch.  You can sand the PVC pipe slightly until it just
> >> fits the irrigation tubing.
> >>
> >
> > I should have said the irrigation tubing has a 2.900 inch ID and the
> > PVC pipe has a 2.875 inch ID.  Ideally, it slips inside with 12.5
> > mils of clearance.  In practice, sanding may be necessary.  YMMV.
> > This is why an outside sleeve is easier; you don't have to worry
> > about any of this.
> >
> > Rick N6RK
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> >
> >
> >
> I use a 12" piece of 2.5 in aluminum conduit as a joiner. I drill and
> tap for eyebolts for guys.
> OD is 2.875 and is a loose fit into 3" .050 wall irrigation tubing.
>
> 73, Roger
>
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