Sewer Smell in the House in Jacksonville, FL: Causes & Fixes

Why does my Jacksonville home smell like sewage?A rotten-egg or sewer smell in a Jacksonville home has more possible causes than in most cities. Hydrogen sulfide in Floridan aquifer groundwater, septic system problems and aging cast iron drains can all produce similar odors, so the first step is figuring out whether the smell comes from the water itself or from the drains.

Fix soon

A faint occasional odor can be scheduled, but a strong, persistent sewer smell should be checked promptly — sewer gas is unpleasant and can indicate a drain leak.

Why it happens in Jacksonville

Sulfur in the water

Hydrogen sulfide in well or groundwater smells like rotten eggs at the tap.

Water heater anode reaction

Sulfur-reducing bacteria react with magnesium anodes to create odor in hot water only.

Septic system issues

Full tanks, failing fields or cracked lines release sewer gas.

Cracked cast iron

Old cast iron drains in historic homes crack and leak gas.

Signs to watch for

Odor near a rarely used drain
Smell around the base of a toilet
Odor in the basement near the floor drain
Smell that gets worse when fixtures drain
Odor outdoors near the foundation

Emergency, or can it wait?

Call right away if…

Smell with sewage visible
Strong odor plus symptoms like headache or nausea (ventilate and leave)

Usually OK to schedule if…

Faint smell from a rarely used drain

What Jacksonville homeowners can check first

Does the smell come from the tap water or the drain?
Hot water only, or both?
Are you on septic or sewer?
Does it get worse after heavy rain?

Close-up of a stainless steel sink drain strainer — Stock photo: Daniel Dan / Unsplash

How our plumbers fix it

Smoke test the drain-waste-vent system to find leaks.
Inspect toilet seals and cleanouts.
Check the roof vent for blockages.
Camera-inspect drains when the source is hidden.

Sewer Smell in the House in Jacksonville: questions

How do I tell if the smell is my water or my drains?

Fill a glass from the tap away from the sink and smell it. If the water smells, it’s the water or water heater; if not, the drains are the source.

Is sulfur water safe in Jacksonville?

At typical levels it’s mainly a nuisance, but it can tarnish fixtures; testing determines treatment.

Can a septic problem cause indoor sewer smell?

Yes, a full tank, blocked vent or failing field can push odors back into the house.

Can cast iron drains cause sewer smell?

Cracks in old cast iron let sewer gas escape inside walls or under floors.

Does JEA water have sulfur in it?

City water is treated, but odors can still come from water heaters or plumbing; private wells are more likely to have strong sulfur smells.

Next steps

Drain Cleaning in JacksonvilleDrain cleaning is the mechanical removal of buildup, debris or roots from drain and waste pipes so water flows freely to the sewer or septic system.Sewer Camera InspectionA sewer camera inspection sends a waterproof camera on a flexible push rod through the sewer lateral to record its condition.Toilet RepairToilet repair fixes problems with a toilet's tank components, bowl, seal or connection to the drain, such as running, leaking, clogging, weak flushes or rocking.Sewer Line Repair in JacksonvilleSewer line repair fixes damage to the building sewer or lateral, the pipe that carries wastewater from a house to the public sewer main or septic system.

National guide: Sewer Smell in the House · Plumbing in Jacksonville