What is what to do when your shower drain smells like rotten eggs?

Okay, here's information about dealing with a rotten egg smell from your shower drain, in Markdown format with links as requested:

Rotten Egg Smell Coming From Your Shower Drain? Here's What To Do

That awful rotten egg smell coming from your shower drain is usually caused by sewer gas, which contains hydrogen sulfide. Here's a breakdown of possible causes and how to address them:

• Dried-Out P-Trap: The most common reason. The P-trap is the curved pipe under your drain that's designed to hold water. This water creates a seal that prevents sewer gases from coming up into your bathroom. If the shower hasn't been used in a while, the water in the P-trap can evaporate, breaking the seal.

  • Solution: Run the shower for several minutes to refill the P-trap. This is often all it takes to solve the problem.

• Biofilm Buildup: Bacteria can grow inside the drain, creating a biofilm that produces hydrogen sulfide. This is especially common with hair and soap scum.

  • Solution:
    • Boiling Water: Pour a large pot of boiling water down the drain (avoid doing this if you have PVC pipes, as the high heat can potentially damage them).
    • Baking Soda and Vinegar: Pour 1 cup of baking soda down the drain, followed by 1 cup of vinegar. Let it fizz for 30 minutes, then flush with hot water.
    • Drain Cleaner: Use a drain cleaner specifically designed to break down organic matter. Follow the instructions on the product carefully. Be cautious when using chemical drain cleaners and avoid mixing different types.

• Sewer Line Problems: A more serious issue could be a problem with the main sewer%20line itself, such as a blockage or a crack. This can allow sewer gases to escape.

  • Solution: If the problem persists after trying the above methods, it's best to call a professional plumber. This could indicate a larger problem that requires expert attention.

• Well Water Bacteria: If you have well%20water, sulfur-reducing bacteria in the water supply can also cause this smell.

  • Solution: Chlorination or a specialized filtration system may be needed. Consult with a well water specialist.

Safety Precautions:

• Sewer gas can be harmful in high concentrations. Ensure adequate ventilation when dealing with drain issues.
• Avoid mixing different types of drain cleaners, as this can create dangerous fumes.
• Wear gloves and eye protection when using drain cleaners or other chemicals.

If the smell persists despite your best efforts, consult a plumber to diagnose and fix the problem. They have specialized tools and knowledge to address more complex plumbing issues.