|
![](/i/fill.gif) |
On Mon, 09 Jun 2008 09:58:55 +0100, "Phil Cook"
<phi### [at] nospamrocain freeserve co uk> wrote:
>
>My pleasure. Not that I, you know, take any real interest in road surfaces
>:-P
I understand and it has been many years since I inspected gutters
close up :)
--
Regards
Stephen
Post a reply to this message
|
![](/i/fill.gif) |
|
![](/i/fill.gif) |
Warp wrote:
> John VanSickle <evi### [at] hotmail com> wrote:
>> A manhole is *circular* minimize the amount of extra material needed to
>> make it impossible for the cover to fall into the manhole.
>
> Are you sure it's a question of minimizing material and not simply because
> it's the *simplest* possible solution for the problem (ie. avoid the cover
> to ever fall into the manhole)?
It is the simplest solution, but if another solution used less material,
economics would drive one of those solutions.
Regards,
John
Post a reply to this message
|
![](/i/fill.gif) |