From the chaotic regions of the Cryptosphere, Bob Minchin
wrote on Thu, 31 Jul 2003 22:13:02 +0100:

The Natural Philosopher wrote:

which is 1:22

Maybe this is too steep but how do you avoid using 2.5 degrees when the fitting
all come like this?

The gradient for _above-ground_ WC branches are between 18mm-90mm per
metre, which works out to 1:55 to 1:11, which works out to between
1.03° - 5.14°. So 2.5° is pretty much slap-bang in the middle.

Rest of the world 1, Natural Philosopher 0.
--
Hugo Nebula
"You know, I'd rather see this on TV,
Tones it down" - Laurie Anderson