What a belly is
Sewer lines are laid on a slight downhill grade so waste flows toward the city main. A belly, or sag, is a low spot where part of the pipe has settled below that grade. Water collects there, solids settle out, and over time the pooled section becomes a catch point.
What causes it
Bellies usually come from the ground under the pipe moving or settling: poorly compacted backfill when the line was installed, soil movement over the years, or water softening the soil around the pipe. The sewer camera shows where the belly is and how deep it goes.
Signs of a belly
- Repeat clogs in the same spot
- Standing water on the camera video
- Slow drains without roots or scale
- Clogs that return soon after clearing
How it is fixed
Small, shallow sags sometimes only need regular cleaning. A significant belly is fixed by exposing that section, correcting the bedding underneath, and relaying the pipe at the right slope. Lining does not fix a belly, because a liner follows the shape of the old pipe. A camera inspection with a locator marks the exact spot so any digging is limited to the section that needs it.
Serving all of Tempe
Sewer Line Belly Repair is available to homes and businesses across Tempe, including North Tempe (85281), Central Tempe (85282), South Central Tempe (85283), South Tempe (85284).
Sewer Line Belly Repair FAQ
How do I know if my sewer line has a belly?
A camera inspection. The video shows water standing in a section of pipe after the line has drained.
Is every belly a problem?
Not always. A minor sag may hold a little water without causing clogs. A deeper one that collects solids usually needs repair.
Can a belly be fixed without digging?
Usually not. Lining follows the existing shape. Correcting the slope means exposing that section and relaying it.
Does a belly get worse?
It can, especially if soil around it keeps shifting or the pooled section corrodes. Monitoring with periodic camera checks helps.