what feature indicates the presence of drain below ground?

Answer 1

Hi Aldana,

Generally it is hard to map the actual location of underground drains until we excavate the ground.

however, we can guess the layout by identifying the inlet/outlet chambers like the floor drains, storm water covers, sewage man-holes, etc, These drain covers are generally directly above the underground drain pipes so if you link these covers together, you get the schematic layout of the underground drain pipes.

I hope this helps. You can contact me for any further questions. Happy to help you.

Regards,

Porus