That's what I'm doing, checking plumbers and local electrical shops. my guy
with the mounts screwed me and didnt show, so I need pipe. The spec sheet
on the vhlp3 says minimum OD 3.5.

I buy water pipe from plumbers because that's what sitepro cuts and sells
us for much more money than the plumbers.



On Sat, Oct 17, 2020, 11:00 AM Ken Hohhof <[email protected]> wrote:

> I have used 3 inch (trade size) IMC electrical conduit.  It is lighter
> than 3” rigid and probably stiffer because of work hardening of the steel
> in the forming process.
>
>
>
> You could also use 3 inch rigid conduit.  You probably don’t want to get
> aluminum though, it’s got more flex.
>
>
>
> If you’re willing to pay for shipping, most of the usual distributors of
> tower steel sell galvanized pipe for mounting antennas.  The advantage
> perhaps being I think the ends are galvanized.  I’ve never seen the cut
> ends rusting to cause problems, maybe after 50 years it would.
>
>
>
> Are you sure 2” pipe or 2-3/8 galvanized fence post wouldn’t be good
> enough?
>
>
>
> If you just need short pieces, you could check with local plumbers and
> electricians to see if they have some leftover cut off pieces.
>
>
>
>
>
> *From:* AF <[email protected]> *On Behalf Of *Steve Jones
> *Sent:* Saturday, October 17, 2020 10:22 AM
> *To:* AnimalFarm Microwave Users Group <[email protected]>
> *Subject:* Re: [AFMUG] Black pipe
>
>
>
> I can get some 3 inch emt probably, not sure the OD on that, I need 3.5
> for some 3' antennas. Would that be rigid enough for that torque? And what
> is it made of that it doesnt rust, its steel
>
>
>
> On Sat, Oct 17, 2020, 9:54 AM <[email protected]> wrote:
>
> It will rust.  Not quickly unless you are by the coast.  Problem is, it
> has a coating that is difficult to remove.  Sandblasting is what I use if I
> have to use it.  You cannot galvanize it unless you remove the coating down
> to bare metal.  Not sure if it will take paint.  Probably if you degrease
> it pretty well.
>
>
>
> *From:* Steve Jones
>
> *Sent:* Saturday, October 17, 2020 8:40 AM
>
> *To:* AnimalFarm Microwave Users Group
>
> *Subject:* [AFMUG] Black pipe
>
>
>
> We normally get galvanized water pipe for masts, but the local shop doesnt
> have any 3 inch in stock..they have 3 inch black pipe though. Has anybody
> used black pipe as a mast before? I'm concerned it will rust out relatively
> quickly
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