What Causes Main Sewer Blockage?

Accumulations of Fats, Oils, or Grease

Pouring FOG down drains seems harmless but creates serious problems. These substances solidify in sewer pipes, adhering to interior walls and trapping debris like food particles and hair, eventually forming stubborn blockages.

Tree Root Intrusion

Invasive tree roots seeking water and nutrients infiltrate small cracks in sewer lines. They continue growing and expanding, creating obstructions that impede wastewater flow while debris accumulates on the roots.

Poor Plumbing Connections

Faulty installations or deteriorated pipes create gaps, leaks, or misaligned joints. These errors allow debris accumulation and cause uneven wastewater flow, leading to sediment buildup.

Flushing Wet Wipes

β€œUnlike toilet paper, the wet wipe design is more durable. Even flushable options do not readily dissolve” in wastewater. They stick in pipe bends and cling to grease buildup.

Old or Weak Sewer System

Worn-out systems develop cracks, misalignments, or collapses, increasing debris infiltration risk. Smaller pipe diameters reduce capacity for higher wastewater volumes.

7 Signs of Clogged Sewer Line

  1. Multiple Drain Backups - All drains backing up simultaneously indicates main line blockage affecting the entire drainage system.

  2. Foul Odor from Tubs, Sinks & Drains - Stagnant wastewater and trapped debris produce unpleasant smells throughout fixtures.

  3. Flooded Backyard - Leaks cause wastewater saturation, eventually flooding outdoor areas with sewage.

  4. Babbling Sounds in Drains - Partial obstructions create turbulence as water and air mix, producing gurgling noises.

  5. Slow Drains - Blockages restrict wastewater flow, causing prolonged drainage across multiple fixtures.

  6. Blocked Toilet - Persistent clogs despite unclogging attempts suggest underlying main line issues.

  7. Insect and Rodent Infestation - Small cracks attract pests seeking shelter and food sources from organic matter.

Home Remedies to Unclog Main Sewer

Using a plumbing snake has limitations:

  • Insufficient reach for deep blockages
  • Lack of visibility into problem extent
  • Risk of serious injury from recoil
  • Potential pipe damage from excessive force
  • Incomplete clearing leaving remnants
  • Long-term expense from repairs

Cost of Sewer Line Unblocking

Professional sewer line unblocking costs range from β€œ$200 to $900+, depending on blockage severity, location, and accessibility.”

Professional Solution

Total UC offers certified plumbers with industry-grade equipment for safe main sewer line unblocking service.