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Re: [TowerTalk] IN SEARCH OF PVC Tubing to Bury...

To: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Subject: Re: [TowerTalk] IN SEARCH OF PVC Tubing to Bury...
From: John Ammeter <jammeter@cablespeed.com>
Reply-to: "Tower and HF antenna construction topics." <towertalk@contesting.com>
Date: Thu, 04 Mar 2010 16:48:28 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I'm KE7JA..... not KE7JGB anymore.  Nor am I Chet, K7JA, although if I'm 
not careful how I pronounce "KE" it comes out "Kayeee"  instead of 
"K...E..."

If you use a vacuum a "mouse" can be sucked a long way through conduit.  
Simply make a cloth "ball" and tie a light line onto it.  Use your shop 
vac to suck it through the conduit.  BUT, be sure to put a screen at the 
end of the conduit or the mouse will end up inside the vacuum.

John KE7JA

Roger (K8RI) wrote:
> WA3GIN wrote:
>   
>> Sorry,  I forgot to mention the distance was 1500ft.  That is a lot PVC glue 
>> ;-)
>>   
>>     
> And you use glue...why? 
> http://www.rogerhalstead.com/ham_files/cablebox.htm  In the run to the 
> house I did use glue, but all the others have no glue.  The conduit was 
> cut long enough to be under pressure and each connection with "greased" 
> with DC-4 (or 5) compound.  Even though buried shallow in an area with a 
> high water table in the spring, there has been no water egress into the 
> conduit. 
>
> There is another run of 1" conduit (for the CAT-6 network cable) not 
> shown that runs between the garage and shop about 10-15' to the right of 
> the junction box on the side of the shop. That conduit also does not use 
> any glue.  I found the silicone grease allows the conduit to fully mate 
> and seal. How well that would work on a 1500 foot run would be difficult 
> to tell.
>
> As for the actual PVC glue.  You can get it in every thing from a few 
> ounces to well over a pint.  It takes very little make a connection. 
> Just a single swipe of the brush all the way around the male end.  Best 
> to get too much glue as too little.  It like the grease aids in fully 
> mating the pieces and with the glue there is no second chance! Once it 
> goes together it's done whether fully mated or only a quarter the way. 
> Where ever it stops is permanent. <:-)) Due to the characteristics of 
> the conduit it's almost impossible to test fit the pieces together and 
> then glue them. With out the glue or grease I've never been able to get 
> them together.
>
>   
>> <snip>.
>>
>>
>>   
>>     
>>> Hardware store... grey electrical plastic conduit.  A 10 foot x 1" stick
>>> will cost about $2.00.
>>>     
>>>       
> In my case it's two or three sizes larger and sooner or later I'll need 
> to add another run. <:-))
>   
>>> BTW, always put in at least one size bigger than you think you'll ever
>>> need.  And, once the ditch is open... put in a spare conduit, too.
>>>
>>> It's recommended that you drill drain holes at the lowest point of the
>>> run.  I've done it both with and without drain holes. 
>>>       
> I did that with the original run to the house, but since then I've not 
> bothered.
>   
>>>  In fact, I just
>>> pulled out a 10 gauge 4 conductor run from some conduit in preparation
>>> to pulling in 6 gauge wire....  the 10 gauge was bone dry and it's been
>>> down there for at least a year without any drain holes.
>>>
>>> John KE7JA
>>>     
>>>       
> KE7? You changed calls?
>   
>>> WA3GIN wrote:
>>>     
>>>       
>>>> ...fiber line from house to ham shack/antenna controller.
>>>>       
>>>>         
> Which reminds me, don't forget to install a messenger cable as you 
> assemble the conduit run. It's really difficult to *PUSH* 1500 feet of 
> the stuff through a pipe.
>
> 73 and good Luck,
>
> Roger (K8RI)
>   
>>>> Source suggestions welcome,
>>>> dave
>>>> wa3gin
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>>>>       
>>>>         
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