AI-generated illustration of a pot of clear water coming to the boil on a farmhouse range, a colander of pasta and a glass of water beside it

WATER TREATMENT · WESTERN PA & NORTHEAST OHIO

If your water smells like rotten eggs, wet dog, or a swamp, hydrogen sulfide gas is almost certainly the cause. Injection oxidizes it, carbon filters what’s left, and every tap runs clean.

4.7★ on Google · 104 reviewsWestern PA & Northeast Ohio

Serving our communities since 1967

THE TWO-STEP FIX Oxidize the gas, then filter what’s left.

Carbon alone fills up on sulfur in weeks, and injection alone leaves a chlorine taste. Together they eliminate the source, which is why we install them as a pair rather than as a single filter.

Schedule a water test
  1. 01InjectionA measured dose of chlorine or hydrogen peroxide goes into the water at the point of entry. It oxidizes the hydrogen sulfide gas and neutralizes the sulfur-reducing bacteria that make it.The smell is destroyed, not masked
  2. 02CataPure CarbonThe CataPure Carbon System filters out the oxidized sulfur and any remaining byproducts, including the residual chlorine, so no tap tastes of either.Clean, clear, odor-free water to every fixture
  3. 03Dosed from the testThe hydrogen sulfide level measured at the tap sets the dose; the iron and pH on the same panel set where this pair sits in the sequence, since they share its chemistry.Sized to your well, not to a rule of thumb
WHAT THE TEST MEASURES
  • Any you can smellNo EPA standard exists for hydrogen sulfide. It is measured on site, because the gas leaves a shipped sample, and the number sets the dose.
  • Hot or coldHot tap only points to the water heater, with no whole-home system needed. Both taps point to the well and this system.
  • WHAT IT CHANGES
  • No smell at any tap, first thing in the morning included
  • Coffee, cooking, and bathing taste and feel like the water
  • Silver stops tarnishing; the gas stops working on the plumbing

IS THIS YOUR WATER?

Why Does My Water
Smell Like Rotten Eggs?

One of the most common complaints we hear from homeowners on well water across Western Pennsylvania and Eastern Ohio, and it makes the water unpleasant to drink, cook with, or bathe in.

HOW THE TWO STEPS WORK

Oxidize It,
Then Filter What’s Left.

This combination doesn’t cover up the smell. It eliminates the source, in two steps, at the point of entry.

  1. 01

    Water in, gas in solution

    Water from the well arrives carrying dissolved hydrogen sulfide, produced by sulfur-reducing bacteria in the groundwater and the rock around the well.

  2. 02

    Injection

    A measured dose of chlorine or hydrogen peroxide is injected at the point of entry. It oxidizes the gas and neutralizes the bacteria that make it.

  3. 03

    CataPure Carbon

    The CataPure Carbon System filters out the oxidized sulfur and any remaining byproducts, including the residual chlorine, so the water tastes of neither.

  4. 04

    Out, odor-free

    Clean, clear, odor-free water continues to the water heater and every tap. The smell is eliminated at the source rather than covered up.

SULFUR · BAD SMELL & TASTE

Sulfur and Rotten-Egg Smell
Water Treatment.

If your water smells like rotten eggs, wet dog, or has a musty, earthy odor, hydrogen sulfide gas is almost certainly the cause. It makes your water unpleasant to drink, cook with, or even bathe in.

What causes the sulfur smell in well water

Hydrogen sulfide is produced by sulfur-reducing bacteria that live in groundwater and the rock formations surrounding your well. These bacteria feed on naturally occurring sulfur compounds and release hydrogen sulfide gas as a byproduct. A smell that lives only in the hot water usually points at the water heater instead; the rotten-egg page has the four checks that tell the two apart.

The fix: chlorine injection plus the CataPure Carbon System

After we test your water and confirm hydrogen sulfide is the issue, the fix comes in two parts. First, we use chlorine injection or hydrogen peroxide injection to neutralize the sulfur-reducing bacteria and oxidize the hydrogen sulfide gas. Then our Chatfield Water Systems CataPure Carbon System filters out any remaining byproducts, leaving your water clean, clear, and odor-free.

Air fresheners won’t fix your water

Opening windows and running fans might reduce the smell temporarily, but the hydrogen sulfide is in your water supply. Every time you run a faucet, shower, or dishwasher, the gas is released into your home. The only real fix is treating the water at the point of entry, before it reaches a single tap.

Serving Western PA and Eastern OH

We treat sulfur and hydrogen sulfide for homeowners across ten counties:

HOW WE SOLVE YOUR SULFUR PROBLEM

Test First.
Then Dose the System.

Tired of the smell? A water test tells us exactly what’s causing it and how to fix it.

  1. 01

    Test your water

    On site or through a certified lab, to confirm hydrogen sulfide levels and rule out other issues.

  2. 02

    Assess your space

    We visit your home to evaluate the installation area and plan the system layout.

  3. 03

    Review results & quote

    The right injection and filtration combination recommended, with a straightforward quote.

  4. 04

    Install

    Scheduled at your convenience; for standard setups, many systems can be installed the same day.

A LITTLE CLARITY

Sulfur Removal Questions.
Straight Answers.

How do I get rid of the rotten-egg smell in my well water?

Covering the smell does not address it. Chatfield’s approach is a two-step treatment applied after testing confirms hydrogen sulfide. Chlorine or hydrogen peroxide injection neutralizes sulfur-reducing bacteria and oxidizes the gas, then the CataPure Carbon System filters remaining byproducts. Because the gas is in the water supply, opening windows or running fans only reduces the odor temporarily.

Why does my well water smell like rotten eggs?

Hydrogen sulfide gas is the usual cause, produced by sulfur-reducing bacteria that live in groundwater and the rock formations around a well. Other signs include a wet-dog or musty odor, an earthy or swampy taste, tarnishing on silver, and an odor that is worse with hot water. Where the odor appears matters, so note whether it is hot water only or both.

Can the sulfur smell be removed from well water?

Yes, when the treatment matches what testing finds. The combination of an injection system and carbon filtration is designed to eliminate the source rather than mask it. Chatfield tests on-site or through a certified lab to confirm hydrogen sulfide levels and rule out other issues before recommending a configuration.

Is it safe to use well water that smells like sulfur?

An odor is an observation, not a safety determination, and the answer depends on what testing shows for your specific well. Odor alone does not establish what is in the water, and water can smell unpleasant for reasons unrelated to safety. Have the water tested and discuss the results with a qualified professional. Call (724) 588-2652 to schedule a water test.

Will the chlorine injection make my water taste like chlorine?

No. The injection system is dosed to the hydrogen sulfide in your water, and the CataPure Carbon System after it takes out the residual chlorine along with the oxidized sulfur. What reaches the tap tastes of neither, which is why the two are always installed together.

What if only the hot water smells?

Then the water heater is the likely source rather than the well: bacteria in the warm tank, or the magnesium anode rod reacting with sulfate in the water. That case is fixed at the heater, and no whole-home system is needed. The test and a cold-then-hot check settle which case is yours before anything is quoted.

Let’s figure it out together.

Talk with the Chatfield team.

(724) 588-2652
Illustrated home connected to a well and groundwater supply

YOUR NEXT STEP

Odor-Free Water Starts
with a Test.

Call or fill out the form to schedule your water test. We’ll confirm the hydrogen sulfide level and dose the system to it, not to a guess.

Call ChatfieldRequest service
Good water starts here

Tell us what’s
on your mind.

A new well, better water, or a system that needs a little attention. Let’s find your next step.

We’ll call you back at the number you give.

Prefer to talk? (724) 588-2652
Book online

Pick a day and a time.

No water, or a pump that has stopped? Call (724) 588-2652