Gradients

gffox32 · Post: # 4847Post **gffox32** Wed Jul 14, 2004 10:08 pm

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.

danensis · Post: # 4849Post **danensis** Thu Jul 15, 2004 12:24 pm

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.

84-1093879891 · Post: # 4854Post **84-1093879891** Thu Jul 15, 2004 3:55 pm

There's a fuller explanation on the Setting Levels page and also in the Definition section of the first Drainage page.

gffox32 · Post: # 4864Post **gffox32** Thu Jul 15, 2004 10:16 pm

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.

danensis · Post: # 4871Post **danensis** Fri Jul 16, 2004 1:08 pm

I think you'd find it obvious if your drive went down 80m for every 1m horizontally.

gffox32 · Post: # 4879Post **gffox32** Fri Jul 16, 2004 7:51 pm

Whatever!!!