Hatch or Shade Pipe Routes

Hello,

I'm working on a large assembly that includes electrical coduit routes as well as pipe routes. I would like to be able to distinguish which routes are electrical and which are pipes in my drawings. Is there a way to add hatching or shading to these non-planar surfaces? Sketching the profile of the pipes is not an option due to the large number or pipes and the number of drawing I need to produce.

Thanks

SolidworksDrawings And Detailing