The smell coming from an unused tub or drain is usually coming from the P-trap. A P-trap is the U-shaped portion of pipe underneath the drain. The trap is supposed to keep sewer odors from coming into your bathroom and home.
Why is there a bad smell coming from my unused shower? Discover potential reasons behind your shower drain smelling like sewage, and find out how to remedy the problem. 1.
Dried-Out P-Trap A dry P-trap is often the main reason your shower drain smells like sewage. This curved pipe is designed to hold a small amount of water that blocks sewer gases from coming up. When that water evaporates (usually in guest bathrooms or unused showers), sewer gases rise, and suddenly your bathroom smells like sewage.
If your bathroom smells like sewage, you may have a serious plumbing or ventilation issue. A master plumber explains possible causes, and ways to fix the problem. Get rid of shower drain odors with this simple guide There's nothing worse than getting ready for a nice, refreshing shower only to find that the drain smells bad.
There are a number of reasons a shower drain may have a foul smell. In this guide, I'll walk you through the seven most common causes your bathroom smells like sewage, how to pinpoint which one's behind your odor, and what you can do right now to fix it. Before you dive in, take a quick look around your bathroom.
Is the smell stronger near the toilet or sink? Does it come and go? The smell associated with biofilm buildup is often described as earthy, moldy, or even sewage-like. This odor can permeate the bathroom, even when the drain itself is not clogged, as the biofilm continues to release volatile organic compounds (VOCs) into the air.
How to fix the sewer smell in your shower drain There are a few potential sources of the sewage scent emanating from your shower, tub, or sink drain. Discover the reasons behind a shower drain that smells like sewer, including common causes and effective solutions. Learn how to identify issues like clogged traps, dried out seals, and build.
Is the drain in your shower starting to smell like a sewer? Discover 8 quick ways to get rid of shower drain smells for good.