Sewer odor prevention checklist
For Chicago-area homeowners — check off tasks as you complete them
Monthly
Run water in all unused drains to keep P-traps full
Floor drains, guest baths, basement sinks
Check under sinks and around toilet bases for new odors or moisture
Early sign of a failing wax ring or slow leak
Clear drain screens of hair, food, and debris
Kitchen, bathroom, and laundry drains
Seasonally (every 3 months)
Flush kitchen drains with boiling water to break down grease buildup
Prevents slow accumulation that causes odors and clogs
Inspect your yard for wet spots or unusually lush grass patches
Can indicate an underground sewer line crack
Check roof vent pipes for debris, ice, or animal nests
Blocked vents push sewer gas back into the home
Annually
Schedule professional drain cleaning for main lines
Removes buildup before it causes backups or odors
Have catch basin pumped out if your property has one
Organic buildup in catch basins is a major odor source
Test sump pump operation before spring rain season
Especially important in Chicago freeze-thaw months
Every 2–3 years
Schedule a sewer camera inspection of your main line
Critical for homes built before 1980 with clay or cast iron pipe
Have a professional hydro jet your sewer lines
Removes grease, roots, and mineral buildup that rodding alone misses
Assess wax ring seals on all toilets, especially older bathrooms
Failed seals release sewer gas with every flush
Provided by Suburban Plumbing Experts — Serving Chicago & Chicagoland