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Posted: Wed Jul 14, 2004 10:08 pm
by gffox32
I know I will scoffed at but I don't fully understand gradients. What exactly does 1:80 mean. By that I mean what depth do i need to go down for every metre of pipe.

Posted: Thu Jul 15, 2004 12:24 pm
by danensis
1:80 means that for every 80 metres of pipe you need to go down 1 metre.

So for every 8 metres of pipe you have to go down 100mm.

Posted: Thu Jul 15, 2004 3:55 pm
by 84-1093879891
There's a fuller explanation on the Setting Levels page and also in the Definition section of the first Drainage page.

Posted: Thu Jul 15, 2004 10:16 pm
by gffox32
Hey guys thanks alot to the pair of you for your help. Now I get is, kinda got it before but didn't know which number refered to length and which refered to fall.

Posted: Fri Jul 16, 2004 1:08 pm
by danensis
I think you'd find it obvious if your drive went down 80m for every 1m horizontally.

Posted: Fri Jul 16, 2004 7:51 pm
by gffox32
Whatever!!!