Sewage Smell In Bathroom: Reasons & Septic Odor Fix

Are you worried about that sewer gas smell in your bathroom? Here are some practical steps to fix this septic odor problem.

One of the most unpleasant odors you’ll like to avoid is those from septic tanks. These tanks don’t need to be open before they smell. Instead, malfunctioning creates a situation where you perceive such odors.

You could perceive the smell of your septic tank in your bathroom, basement, or other indoor areas.

Now, what’s responsible and how can these odors be eliminated?

Dealing With Septic Tank Smells In Bathroom

Here, we’re discussing the causes of septic tank smells in the bathroom and other indoor areas. The purpose is to inform and educate you on what can be done to get rid of such odors.

If you have odor issues only when it rains, here is a fix.

Dangers of Sewer Gas

The awful smell you’re inhaling from your septic tank is sewer gas which isn’t supposed to be released indoors. Perceiving this smell in your bathroom simply means your septic tank isn’t functioning right and needs to be fixed immediately.

There are lots of dangers associated with sewer gas finding its way into homes. These dangers can be categorized into health risks as well as explosive risks.

To be clear, the smells you perceive from your septic tank isn’t dangerous at low levels. However, it needs to be eliminated.

On the other hand, when a substantial amount of sewage gas leakage happens, it becomes toxic. This creates a significant health risk for you.

  • Health Risks

The characteristic smell of sewer gas (like the smell of rotten eggs) isn’t only awful by could cause health problems.

This is even more common when the leakage from your bathroom is significant. Symptoms of exposure range from lightheadedness or dizziness, and fatigue.

Others include poor concentration and memory, headaches, as well as nausea. Mild symptoms will normally go away without treatment once you’re no longer inhaling this odor.

In extreme cases where significant levels of sewer gas are inhaled, symptoms will include loss of smell, coma, seizures, pink eye and eye irritation, as well as throat and lung irritation.

Prolonged exposure to sewer gas at high levels may likely lead to death. However, the smell emanating from your septic tank wouldn’t be as high as to cause these severe symptoms. Nevertheless, these odors aren’t pleasant and will need to be gotten rid of.

  • Explosive Risk

Sewer gas leaks can also cause other problems such as explosions due to what it contains. Its components include hydrogen sulfide, methane, ammonia, and carbon dioxide.

Now, both hydrogen sulfide and methane gases are highly flammable and could result in explosive reactions when ignited by sparks or flame.

Why Do I Perceive Septic Tank Smells In My Bathroom?

Why does the bathroom smell like sewer after a shower?

This is the main question that needs to be asked by anyone faced with septic tank odors in the bathroom or other indoor environments. This smell may be faint or pronounced.

Whatever the case is, it isn’t supposed to be there in the first place. So, immediate solutions need to be found.

Before settling for a solution, you’ll need to first identify where such a smell is coming from. Septic tank odors in a bathroom are likely to emanate from multiple sources or particular points.

This depends on what the underlying problems are.

  • Understanding How Your Plumbing Works

Most plumbing is designed with a U-shaped pipe that serves or channels wastewater from the sink drain to the P-trap pipe. The P-trap serves an important function as one end connects to your septic tank or sewer system while the other goes up the roof to safely dispose of sewer gases while letting in the fresh air.

This similar setup applies to your shower and tub.

The P-trap is called so because while it channels wastewater away, it collects or traps a small amount. This trapped water serves as a blockage or barrier that prevents smelly odors that may enter your home from your septic tank.

All drainage systems have this structure that blocks off sewage gases from coming in. So, perceiving septic tank odors in your bathroom is an indication that something’s wrong.

Sewer Gas Smell In Bathroom: 3 Situations

When septic tank odors are perceived in bathrooms, it could be due to 3 possible causes or a combination of them.

If the odors persist after trying out these three, the problems may be more complex and will require calling a professional to assess the situation.

  • Your Bathroom Hasn’t Been Used in a While

Bathrooms normally see frequent usage. However, there are times when you may not be home for extended periods.

During this time, the water barrier meant to block sewage gases from entering your home may be dried up.

When this happens, gases from your sewage tank easily enter your bathroom. This may be the cause of the odor you perceive. Luckily resolving this problem isn’t complex. You only need to flush some water down your drains to replenish the lost water.

  • Leakage in and Around your P-Trap

Unlike the first, it’s possible to still perceive septic tank smell despite using your bathroom frequently. So, the cause wouldn’t be due to dried up water in your P-trap. Rather, there could be a leakage in and around your P-trap.

This means water doesn’t stay but leaks out. However little such leakage is, it opens up a path for septic tank odors to get into your bathroom. Fixing this problem will require calling a plumber to take a look.

  • Clog In Your Drain

Another possible cause for septic tank smells in your bathroom may be a clog in your drain.

The problem here may be easy to fix or a bit more complex. You could use a plunger to get rid of the smelly clogs yourself or call a plumber to get the job done.

A more challenging situation will require the removal of the P-trap to fix the problem. This may end up giving you the relief you seek.

Resolving Septic Smells In Bathrooms

Septic tank smells in bathrooms are among common problems that arise from time to time. The escape of sewer gases from your tank into your home can be resolved through any of the methods mentioned above.

By now, you should know you’re having a septic tank smell in your bathroom. These awful smells shouldn’t be tolerated or ignored but fixed immediately with the strategies outlined above.

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1 thought on “Sewage Smell In Bathroom: Reasons & Septic Odor Fix”

  1. Zachary Tomlinson

    Thanks for pointing out how a pungent smell that roams around your kitchen or bathroom sink is a sign that your drains are clogged and need cleaning. This happened to my boss recently, and he has stopped using his master’s bathroom because of it. Maybe he should reach out to a rooter that can clean his drains for him!

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