Solved! Unpleasant Sewer Gas Odor After Septic System Replacement or Maintenance?
Why Does My Home Smell Like Sewer Gas After Septic System Replacement or Maintenance?

Having a brand new septic system should be a breath of fresh air, literally. But sometimes, homeowners in Havre de Grace, MD encounter a puzzling problem – sewer gas odors after a septic system replacement. At Hall's Septic Service, we understand this can be frustrating. Here's the good news: there are common reasons for this, and they can be addressed!
Understanding Septic System Venting
A properly functioning septic system relies on a well-maintained venting system. Vents allow gases produced during wastewater breakdown to escape harmlessly. When replacing your septic system, existing vent issues may be exposed.
Common Causes of Sewer Gas Odor After Replacement
Roof Vent Problems:
The roof vent is crucial for venting gases out of the system. If clogged, damaged, or improperly installed, those gases can vent back into your home through windows or openings.
Gas Bubbles in Drain Traps:
While less common, air pockets or gas bubbles can occasionally form within P-traps (the U-bend beneath the drain). This can temporarily disrupt the water barrier, allowing some sewer gas to escape.
Solutions to Eliminate Sewer Gas Odors
Run Water in Rarely Used Drains:
This simple trick keeps the P-trap filled with water, blocking sewer gas.
Call Hall's Septic Service:
Our Havre De Grace, MD septic experts can diagnose the cause and repair your vent system, eliminating unpleasant odors. We offer comprehensive septic services, including vent inspections and repairs.
Addressing Sewer Gas Odors Outside Your Home
Sewer gas odors outside your home can also be a concern. Here's a potential culprit:
Damaged Septic Tank Manhole Cover:
A cracked or damaged septic tank manhole cover can allow sewer gas to escape.
Hall's Septic Service: Your Partner for Fresh Indoor Air
At Hall's Septic Service, your comfort and health are our priority. We offer septic tank manhole cover inspection and replacement to ensure a proper seal and eliminate outdoor odors.
Notice a Temporary Odor? Try This Simple Tip (But Call Us If It Persists!)
While temporary sewer gas odors can sometimes arise due to air pockets within drain traps, in these cases, pouring a small amount of bleach down the drain can help break down the gas bubble and restore the water barrier. However, this is a temporary solution and shouldn't replace a professional inspection by Hall's Septic Service.
Don't Let Sewer Gas Odors Linger!
If you're experiencing sewer gas odors after a septic system replacement, contact Hall's Septic Service in Havre de Grace, MD at (410) 838-0046. We'll diagnose the issue and get your home smelling fresh again!




