Use the Pipe Placement tools to draw pipe in your model.
When the Pipe or Pipe Placeholder tool is selected, the Modify | Place Pipe tab provides the following options for placing piping:
 
	 Inherit Elevation: inherits the elevation of the element being snapped to. 
  
 
	 Inherit Size: inherits the size of the element being snapped to. 
  
 
	 Slope Off: draws pipe without slope. 
  
 
	 Slope Up: draws pipe with slope up. 
  
 
	 Slope Down: draws pipe with slope down. 
  
 
	 Show Slope Tooltip: displays slope information while drawing sloped pipe. 
  
Add Vertical:sloped pipe connects using the current slope value. 
  
Change Slope: sloped pipe connects directly regardless of the slope value.