If your shower drain smells, you are not alone. I get calls about this all the time from homeowners in Evansville and the surrounding tri-state area. A smelly drain is more than annoying—it may point to a small issue you can fix fast or a bigger problem that needs a pro. Here is how I help customers figure out what is going on and what to do next.
The Most Common Reasons Your Shower Smells
A Dry or Weak P-Trap
Your shower has a curved pipe called a P-trap. It holds water to block sewer gas. If the shower is rarely used or the trap evaporates, the barrier disappears and odors drift up. It is simple but common—especially in guest baths.
Biofilm Buildup
Hair, soap scum, body oils, and shampoo can stick to the inside of the drain and create a slimy layer called biofilm. Bacteria love biofilm and can make powerful odors. If the smell is musty or rotten, this could be the cause.
Hair and Soap Clogs
Even small clogs slow water and let debris collect. Stagnant water and trapped gunk create that sour, swampy smell. If your drain gurgles or pools, a partial clog is likely.
Venting Issues
Your plumbing vent lets air flow through the pipes so water moves smoothly. If the vent is blocked by leaves, a bird nest, or snow, you may hear gurgling and smell sewer gas. Vent problems are less common but need professional attention.
Old or Failing Seals
Worn gaskets around the drain or a cracked shower pan can let sewer gas escape. If your shower is older, damaged seals may be part of the problem.
Sewer Line Trouble
If you notice smelly drains in more than one room, slow toilets, or soggy lawn spots, the issue might be with the main sewer line. That is a “call-us-now” situation to prevent damage.
Quick DIY Checks You Can Try Today
Refill the P-Trap
Run warm water in the shower for a minute to refill a dry trap. For guest baths, do this once a week to keep the seal in place. A tablespoon of mineral oil poured into the drain can slow evaporation.
Clean the Drain Cover
Pop off the cover and remove trapped hair. Use a gloved hand or a small plastic drain tool. This simple step often cuts odors right away.
Remove Biofilm Gently
Mix a bit of dish soap with hot (not boiling) water and slowly pour it down the drain. Follow with a flush of plain hot water. Enzyme-based cleaners can also help break down organic buildup. Avoid harsh chemical drain openers—they may damage pipes and are not great for indoor air.
Check for Standing Water
If water pools around your feet, you likely have a partial clog. A hand plunger or a small, non-metallic drain snake may clear it. Go slow to avoid scratching the drain.
When It Is Time to Call Brackett
If the odor keeps coming back, spreads to other fixtures, or you suspect a vent or sewer issue, it is best to bring in a licensed pro. Since 1949, Brackett Heating, Air & Plumbing has helped Evansville homeowners find and fix the smelly drain problems that DIY steps miss. We are family owned, fully licensed and insured in Indiana, Illinois, and Kentucky, and we stand behind every job—the Brackett Difference.
What Our Professional Drain Evaluation Includes
- Targeted Inspection: We check traps, seals, and venting to find the exact source of odor.
- Safe, Effective Cleaning: We use professional tools and methods that protect your pipes and improve flow.
- Camera Options: If needed, we perform a camera inspection to look deeper into the line.
- Upfront Solutions: You get clear options—from simple fixes to repair or replacement—so you can choose what fits your home and budget.
Keep Odors Away With Simple Habits
Give Little-Used Showers Some Love
Run water weekly to keep the trap full and healthy.
Catch the Hair
Install a hair catcher under the drain cover and empty it often.
Rinse Hot, Finish Dry
After showers, run hot water for 15–30 seconds, then squeegee walls and floor. Less residue means less biofilm.
Watch for Patterns
If odors pop up after heavy rain, large laundry days, or when multiple fixtures drain at once, tell us. Those clues help us diagnose vent or sewer issues fast.
Ready for Fresh, Clean Air in Your Bathroom?
A shower drain that smells does not have to take over your bathroom. Whether you need a quick clean-out or a deeper fix, my team is here to help. With decades of experience, honest advice, and friendly service, we make it easy to get your bathroom smelling fresh again.Call Brackett Heating, Air & Plumbing today or schedule online. We proudly serve Evansville and the tri-state area with the skill, integrity, and care your home deserves.
