Horizontal distance = 48'
difference in elevation = 18"-6" = 12" = 1'
Slope of the sewer line = rise/run = 1/48 = 0.0208 = 2.08%
 
        
             
        
        
        
-2x and 4x
and x2 so tats it
        
             
        
        
        
a monster can eat 48 cookies in 12 minutes me thinks
 
        
             
        
        
        
if you add 4 to it then you would get 8