How We Tracked Down a Hidden Sewer Odor in Clearwater, Florida—And What It Means for Your Home

Frustrated Clearwater homeowner indoors with green sewer smoke and I Find Leaks van visible outside the window.

It started like so many calls we get in Clearwater: “My house smells like sewage, but no one can find where it’s coming from.” This homeowner in the Old Bay District had tried everything—plumbers, air fresheners, even replacing a toilet. But the foul smell kept creeping back. That’s when they called I Find Leaks.

Our technician, Tyler, arrived with a hunch: this wasn’t a simple issue. It was time for sewer smoke testing—a method that uses safe, pressurized smoke to track down hidden leaks in a home’s sewer gas system. It’s a powerful tool, especially in older Clearwater neighborhoods with aging plumbing systems.

Commercial-grade Hurco smoke machine with hose attached, ready for sewer odor testing in Clearwater home.
Tyler prepares to install our Hurco smoke machine at a Clearwater home to identify the source of a persistent sewer odor.

Using our commercial-grade Hurco smoke machine, Tyler began introducing environmentally safe smoke into the home’s sewer lines. Within minutes, he confirmed full system saturation.

Smoke exiting plumbing stacks on a Clearwater roof during sewer odor detection test.
Smoke escapes from the plumbing stacks, confirming full system penetration during Tyler’s sewer odor detection test in Clearwater.

From the rooftop, you could see smoke pouring from the vent stacks—a sign the system was pressurized and ready to reveal its secrets.

Close-up of sewer vent stack with heavy smoke discharge during Clearwater odor test.
Tyler captures a close-up of smoke pouring from the vent stack, proving full system saturation with safe, eco-friendly Herco smoke.

That’s when Tyler went back inside.

He crouched down with a flashlight near the toilet and spotted it—thin wisps of smoke leaking from the base of the toilet. Most people wouldn’t see it. You wouldn’t smell it. But that small leak was enough to let sewer gas enter the home.

Smoke escaping from base of toilet during sewer odor test in Clearwater home.
Fine smoke escapes from the base of the toilet—proof of a hidden sewer gas leak that could only be uncovered with professional smoke testing.

Then, he checked the other side of the toilet. Smoke was escaping through an area of missing grout behind the toilet, right where it met the tile floor.

Smoke leaking from missing grout behind toilet during sewer odor test in Clearwater.
Smoke escapes through missing grout behind the toilet—an unseen sewer gas entry point now exposed with precision smoke testing.

That was the cause of the odor—and without smoke testing, no one would’ve found it.

Why Sewer Odors Are on the Rise in Clearwater

This case isn’t unusual—Clearwater homeowners in neighborhoods like Island Estates, Countryside, and Oak Acres are reporting more sewer odor issues than ever. And it’s not just happening indoors. Clearwater has been facing public infrastructure challenges, especially around the Northeast Water Reclamation Facility, where nearby residents have complained of strong odors.

Even local news outlets like WFLA have covered Clearwater’s growing odor problems.

But what many people don’t realize is that a lot of Clearwater homes—especially those built before the 1980s—still use cast iron plumbing stacks. These stacks can split, rust, or crack over time, letting sewer gases seep into your home through hidden gaps. According to experts like Whitt Inspections, cast iron in Florida’s climate often fails between 40–60 years of age.

That means homes near Downtown Clearwater, Edgewater Drive, or even Sand Key are all candidates for sewer gas leaks—whether from corroded pipes or failed seals around toilets, sinks, or vents.

How I Find Leaks Tracks Down the Problem

At I Find Leaks, we don’t guess. We locate. And we do it using a three-part strategy:

We use commercial-grade equipment, industry knowledge, and a proven process that avoids unnecessary demolition or costly restoration work.

What Clearwater Homeowners Need to Know

If you live in:

  • Old Bay District
  • Island Estates
  • Countryside
  • Clearwater Beach area
  • Historic Downtown neighborhoods

…and you’re smelling something off, don’t ignore it. Sewer odors don’t go away—they usually get worse. Whether it’s a failed wax ring, split cast iron stack, or hidden vent leak, we’ll find it fast.

Call or Text I Find Leaks Today

📲 Call or Text 727-409-2815 today for Clearwater sewer odor detection using advanced, eco-safe smoke testing. Don’t let hidden leaks stink up your life.

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