Illinois Septic ProIllinois

Drain field repair & replacement

Drain field work usually needs a permit and a site or soil evaluation from the local health department or permitting authority.

Corrugated drain pipe in a hillside trench between garden beds
Photo: Soil Science from Raleigh, Wikimedia Commons, CC BY 2.0

Drain field work usually needs a permit and a site or soil evaluation from the local health department or permitting authority.

Do this first

  • Cut water use: spread out laundry, showers and the dishwasher.
  • Keep people, pets and vehicles off wet spots and away from any sewage.
  • Never enter or lean into a septic tank: the gases inside can be deadly.
  • Note when the tank was last pumped and where the lids are, if you know.

Slow drains, odors or a backup? Tell us what is happening. Request septic service