Installers need to excavate down to the level of the crawl space or basement, even where driveways, walkways or established plants are located. And if the system ever clogs, it’s not easy to repair.

He apparently had been buried in a crawl space and covered in concrete ... Detectives are working with contractors to recover the body. The excavation process is expected to last through the ...

Once they finished the crawl space excavation, they checked all around the area, looking for any ground that looked previously dug up or disturbed. They then went one step further. “We decided ...