Why Does My Bathtub Drain Smell Like Sewage

First off, if your drain smells musty, you most likely have active mold growing underneath the drain cover. But if your drain smells like rotten eggs or sewage, you're either smelling: “Biofilm” from a clogged or dirty drain or. Sewer gases that have escaped your drainage pipes.Nov 23, 2016,

What is good to pour down a smelly drain?

Step 1: Mix 1/2 cup baking soda with 1/4 cup table salt. Step 2: Pour the mixture down the drain. Step 3: Pour 1 cup heated vinegar down your drain; the concoction is going to foam and bubble. Step 4: Let the solution stand for 15 minutes (longer does not work any better).

Why is there a sewer smell coming from my bathtub drain?

Most odors in sink or tub drains aren't caused by sewer gas, since water in the drain trap acts as a barrier to prevent sewer gas from coming up into your home. Instead, the usual culprit is bacteria growing in organic matter—such as hair—which becomes lodged in the drain.

How do you get rid of sewer smell in bathtub?

Mix 1 part bleach and 1 part water, then pour down the drain. First, pour one cup of baking soda down the drain. Then add a cup of white vinegar. Cover the drain as the mixture fizzes, then flush with hot water.Mar 13, 2019

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