You clean your home, stay on top of health checkups, and do your best to create a safe space for your family. But some threats don’t come with clear signs. Sewer gas is one of them. It doesn’t always smell strong. It doesn’t always make noise. Yet it can cause serious health issues, especially for kids. 

Their bodies are still developing, and they’re more sensitive to the kind of toxins that can sneak in through something as ordinary as a floor drain. If your child keeps getting sick and you can’t figure out why, sewer gas may be contributing to the issue. 

This article walks you through what to look out for, how this gas enters the body, and why children are at higher risk.

Kids Are More Vulnerable Than Adults

Children breathe faster than adults and have developing organs. This makes them more sensitive to harmful substances in the air. Even a small amount of exposure to sewer gas can affect them more quickly. You might think your house smells a little off. Meanwhile, your child might already be feeling dizzy or nauseated.

Look out for these signs, especially if they show up together or seem to happen more in one room of the house:

For example:
• Headaches with no clear cause
• Nausea or loss of appetite
• Unusual tiredness
• Irritation in the eyes or throat
• Dizziness or light-headedness
• Complaints about a “rotten egg” smell

These symptoms can be easy to brush off. Maybe it’s just the flu. Maybe your kid skipped breakfast. Still, if they continue to occur or worsen when your child is indoors, especially in a specific part of the home, it’s worth a closer examination.

Where It Comes From and Why It Happens

Sewer gas usually sneaks in through plumbing issues. Cracked pipes, dry traps, broken seals, or even something as simple as an unused guest bathroom can become a gateway. On some occasions, the problem is outside your home, and the gas seeps in through the foundation. Heavy rain or blockages in the municipal line can push it back into the house.

Older homes are at a higher risk, especially if the plumbing hasn’t been updated in years. Even so, newer homes aren’t completely safe either. If the installation wasn’t done properly or if seals start to wear out, sewer gas can still seep in.

It’s also worth knowing that certain conditions can increase the danger of sewer gas explosions. Methane, a major part of sewer gas, is highly flammable. If the concentration builds up in a closed space and there’s a spark from a water heater, a dryer, or even static electricity, it can ignite. It doesn’t happen often. Yet when it does, the damage is serious. Entire sections of homes have been destroyed this way. That’s exactly why you need a professional sewer service, so the issue can be fully managed and resolved without leaving your family at risk.

Why Smell Isn’t Always Enough

You’d think that with something this dangerous, you’d always be able to sniff it out. In reality, your nose can’t be trusted alone. Some people become used to the smell over time. Kids might not even mention it unless it’s strong. And depending on the gas mix, there may be no smell at all. That’s why relying only on your senses isn’t enough.

If your child keeps getting sick and you can’t figure out why, consider calling a plumber or an indoor air quality expert. You may also want to consider investing in air sensors that can detect gases such as methane or hydrogen sulfide. These don’t have to be fancy or expensive. In fact, some plug into an outlet and give you instant readings.

Prevention Is Always Easier Than Cleanup

The good news is that preventing sewer gas leaks isn’t all that hard. Routine plumbing maintenance can go a long way in preventing issues. Ensure that all your drains are used or filled with water regularly, especially in rooms that are not frequently used. Also, watch for slow drains, gurgling noises, or bubbling toilets. These are small clues that something might be building up down there.

In addition, check basement floor drains and sump pits. If you see water levels dropping in traps or smell even a hint of sulfur near those spots, don’t ignore it. And if you’re doing renovations, especially involving plumbing or flooring, make sure a licensed professional checks the system before sealing anything up.

Keep Communication Open with Your Kids

Sometimes the most useful information comes straight from your child. If they tell you a room “smells weird” or that they feel sick in one part of the house but fine in another, take it seriously. Encourage them to speak up when they feel off, even if they think it’s something small.

A parent’s gut instinct is a powerful thing. If something feels off in your home, you’re probably right to ask questions. Trust that feeling and follow it through.

Final Thoughts

You can’t protect your kids from every risk. Still, you can stay alert and act early when it comes to the air they breathe at home. Sewer gas is easy to miss but not hard to prevent. Pay attention to what your home is telling you. It might be the quiet clue that helps you keep your child safe.