Radon Aeration Systems for Radon in Well Water

Radon is not only in the air, but it is also a common issue in well water.  Radon Aeration Systems Aeration units remove gases from water. The most common gases in water are radon, hydrogen sulfide (rotten egg odor), and carbon dioxide (acid water).

Radon in Water
Radon in Water

Radon Aeration Systems Information

Radon Aeration Systems Aeration units remove gases from water. The most common gases in water are; radon, hydrogen sulfide (rotten egg odor) and carbon dioxide (acid water).  Aeration is accomplished via air pumps, well line venturi-mirconizer, or bubbling(aerating) the water in an atmospheric chamber. We offer all of the methods listed, but for the best results, we recommend the diffused bubble aeration process.  The image to the right is an aeration system that acts as an acid neutralizer as well.  Our technicians go over all the benefits, explain how the system works as well as answer any questions you have.Radon in Your Well WaterIn addition to the risk of Radon in the air you breathe, Radon can be present in your home's water. If your home's water source is well water, we recommend having your water tested.  Radon is the leading cause of lung cancer among non-smokers and heightens the risk for existing smokers.Because Radon exists in the soil and rocks, most people in Connecticut are aware of the dangers that lurk in basements.  Local homes get tested regularly for Radon gas, but the threat of Radon in your water is often overlooked.  Showering, drinking water, doing the dishes, running the dishwasher are everyday home activities that can temporarily elevate radon levels.

Tower Aerators vs. Bubble Aerators

The most effective method for removing radon from well water is aeration, which physically removes the radon gas before it enters your home's plumbing system.

There are two main types of aeration systems:

Packed tower aerators are the most efficient, removing 95-99% of radon. Water sprays down through a tower filled with packing material while air is blown upward, stripping out the radon gas which is then vented outside.

Diffused bubble aerators are typically less expensive and remove about 95% of radon. Air is bubbled up through the water in a tank, carrying the radon gas out through a vent.

Granular activated carbon (GAC) filters are an alternative but generally less recommended for radon removal. They trap radon on carbon particles but create two concerns: the filters themselves become radioactive over time and require careful disposal, and there's potential for radon to be released if water sits in the tank.

Key considerations:

  • Aeration systems require electricity and a vent pipe to the outside
  • They typically cost $3,000-$6,000 installed
  • Regular maintenance is minimal but important
  • If radon levels in your water are above 4,000 pCi/L, the EPA recommends treatment

Have you had your well water tested for radon levels yet? That would help determine whether treatment is necessary and which system would be most appropriate for your situation.

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    Inhalation Risk

    This is the primary concern. When you use water in your home (showering, washing dishes, doing laundry), radon gas is released into the air. Breathing radon over time increases lung cancer risk, as radon is the second leading cause of lung cancer after smoking.

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    Higher in Well Water

    Well water typically has higher radon levels than surface water (which allows radon to escape to air).

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    Recommended Water Testing

    If you have well water, radon testing is worth considering, especially in our area. If you rely on well water, it’s crucial to test for radon, especially in our region known for its granite bedrock. 

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    Common in Our Area

    Connecticut and New York have geological formations that naturally produce radon, particularly in areas with crystalline bedrock, granite, and metamorphic rock.

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    Contributes to Indoor Air Radon Levels

    Radon in water can contribute to your home's overall indoor air radon concentration. The EPA estimates that 10,000 pCi/L of radon in water contributes approximately 1 pCi/L to indoor air. While this is typically a smaller contributor than radon entering through soil and foundation cracks, it can be significant with very high water radon levels.

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    Levels can Vary

    Radon levels can vary dramatically even between properties just a few hundred feet apart. It depends on the specific geology through which your well water travels. We recommend testing your water to always err on the side of caution.

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    Real Estate Considerations

    Less frequent repairs and replacements are needed for appliances and plumbing systems affected by hard water damage, which reduces maintenance costs, as well as extends the life of household appliances.

Water Hardness Table

Here is a water hardness table for your reference. A simple water test will determine the water hardness in your home and allow us to determine how to best treat your water. Additionally, we test for other components in your water which we will go over with you. Whatever you decide regarding water treatment is completely your decision. Our job is to provide all of the data and the corresponding treatment solutions.

Water Hardness Level Grains Per Gallon (GPG)
Soft Water0 - 1 gpg
Slightly Hard Water1 - 3.5 gpg
Moderately Hard Water3.5 - 7 gpg
Hard Water7 - 10 gpg
Very Hard WaterOver 10.5 gpg
Radon in Water

Pro H2O Water Softener Systems

  • Protects Plumbing Systems - Prevents mineral deposits from accumulating in pipes, fixtures, and faucets, reducing clogs and maintaining proper water pressure.
  • Reduces Cleaning Time and Effort - Eliminates soap scum buildup on shower doors, bathtubs, and sinks, making bathroom cleaning much easier.
  • Lower Energy Costs - Water heaters operate much more efficiently without mineral buildup from hard water, potentially reducing energy bills by up to 25%.
  • Better Water Flow - Helps to prevent scale buildup that can restrict water flow through pipes and fixtures over time.
  • Improves Soap and Detergent Effectiveness - Soft water allows soaps, shampoos, and laundry detergents to lather better and work more effectively, often requiring less product.
Radon in Well Water

AI Raider 433-S

  • Easy Installation  - This is a self-contained unit so that you will save on plumbing expenses. There are no separate pumps or pipes to install.
  • Smaller Footprint - With its unobtrusive compact design, it frees up space in your home.
  • Easier Maintenance - Since the unit is self-contained, it is fully accessible from the top, making maintenance and service very easy.
  • Quiter Operation - Again, since the unit is self-contained, the built-in pump noise is reduced.
  • Double Insulation - The double-insulated self-contained unit will not sweat.
  • Hands-Free Startup- The unit starts automatically when it needs to operate.
  • Double Insulation - The double-insulated self-contained unit will not sweat.
  • Lead Free - The unit meets the requirements of the SDWA Reduction of Lead in Drinking Water Act.

Where should it be installed?

Typically, in the basement, garage, or utility room near the main water line entry point. It needs access to a drain, an electrical outlet, and it should be protected from freezing temperatures. It should be installed after the pressure tank (for well systems) but before the water heater.

How often should it be serviced?

Annual professional service is recommended but not always necessary for modern systems. Have it inspected if you notice reduced water pressure, continuous running, or poor softening performance.

  • Are You Ready to Take the Next Step?

    We are here to answer all of your questions and earn your business.

Real Estate Professionals

Partner with us to provide comprehensive radon testing services for your clients. We work within inspection timelines and provide clear, actionable reports.


Why refer your clients to us:

  • Fast turnaround fits contingency periods
  • Clear explanations help clients make informed decisions
  • Professional reports suitable for negotiations
  • Treatment options if needed

Testing is Simple and Affordable

Cost: $150-200
Timeline: Results in 5-7 business days
Process: Special sealed bottles filled on-site and sent to a certified lab


When to Test

During Home Purchase:

  • Include it in your inspection contingency period
  • Especially important if air radon levels are elevated
  • Allows negotiation with seller if treatment is needed

For Current Homeowners:

  • If you have elevated air radon levels
  • If you've never tested your well water
  • Every 5 years as part of routine well maintenance
frequently asked questions about water softeners
Hard Water Buildup
frequently asked questions about water softeners

Frequently Asked Questions About Water Softeners

We will always do our best to keep you informed as well as answer any questions you may have. Please find some common questions below.

What's the difference between a water softener and a water filter?
Do I really need a water softener?
Will a water softener save me money in the long run?
Is softened water safe to drink?
Should I have a bypass for drinking water or outdoor faucets?
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