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Re: [TowerTalk] Drain Pipe Passing Thru Tower Foundation

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Drain Pipe Passing Thru Tower Foundation
From: Brian Amos <bamos1@gmail.com>
Date: Tue, 14 Jan 2014 11:48:29 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Move the pipe. If it were to ever leak you would have a leaning tower.

Brian
KF7OVD
On Jan 14, 2014 11:42 AM, "John Lemay" <john@carltonhouse.eclipse.co.uk>
wrote:

> Marsh
>
> The answer to your question is neither !
>
> No need to relocate the drain, but don't pour concrete directly around it
> either. What you should do is surround the exposed pipe with a firm but
> compressible material, and then pour the concrete. The material could be a
> dense foam for instance. Alternatively get a piece of larger plastic pipe,
> split it lengthways and place it around your drain with some spacers.
>
> The intention is to isolate the drain from small movements in your concrete
> base. Also, if you need to replace the drain at a later date, it will be
> much easier.
>
> This is what I would do in a domestic situation. I'm assuming your building
> codes in the US don't have a specific requirement.
>
> John G4ZTR
>
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Marsh
> Stewart
> Sent: 14 January 2014 16:52
> To: towertalk@contesting.com
> Subject: [TowerTalk] Drain Pipe Passing Thru Tower Foundation
>
> I'm installing a base foundation for a US Towers HDX-555. The base will be
> 5' X 5' X 7.25' per specs. The rebar will be per specs. Concrete will be
> 4000psi in 28 days. The soil is moist, very firm, and no water is seeping
> into the hole. After excavation began, I found a 6" white PVC drain pipe
> (rainwater run-off drainage, not sewer) that runs across one corner. The
> drain pipe is about 1.5' below grade and runs at about a 30-degree angle
> across one corner. Total length of pipe exposed (in the base foundation) is
> about 4'. The rebar "cage" can be built per specs around the pipe. The pipe
> can be relocated, but it will require considerable extra digging and the
> soil around the affected corner will no longer be undisturbed.
>
> Should I relocate the drain pipe or pour concrete around it?
>
> Marsh, KA5M
>
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