[TowerTalk] Adivce Using Irrigation Pipe

[Roger D Johnson]

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
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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