What’s Actually Under Every Drain (And Why It Matters)
Under every sink, shower, and floor drain in your house is a curved section of pipe called a P-trap.
Its job is deceptively simple: hold a small amount of water.
That water acts as a seal, blocking sewer gases from traveling back up into your home.
As long as there’s water in the trap, odors stay where they belong.
The problem?
If a drain isn’t used for weeks—or months—the water slowly evaporates.
Common trouble spots include:
- Basement floor drains
- Guest bathrooms
- Unused showers or tubs
- Utility sinks that rarely run
Once the water is gone, there’s nothing stopping sewer gas from rising straight into your living space.
That’s when the smell hits.
Read more on the next page ⬇️⬇️⬇️
