Air Injection (AIO) Iron & Sulfur Removal

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Well water Β· Iron & sulfur

Air Injection Iron & Sulfur Filters

Rotten-egg smell, orange staining and rusty water on a private well? An air-injection oxidizing (AIO) filter removes iron, manganese and hydrogen-sulfide β€” no chemicals, no salt, no monthly maintenance.

Rotten-egg (sulfur) smellOrange / rust stainingManganese (black) stainingNo chemicals or salt
  • Removes dissolved iron, manganese and hydrogen sulfide (the β€œrotten-egg” gas)
  • Uses a pocket of compressed air β€” no chlorine, potassium permanganate or salt to buy
  • Automatic backwash refreshes the air pocket and flushes captured iron
  • Ends orange toilet rings, rusty laundry stains and sulfur odor
  • Sized to your iron, manganese and sulfide levels after a free well-water test

Well Water Solution
Air Injection (AIO)

Private wells across Manatee, Sarasota and surrounding counties commonly pull up dissolved iron, manganese and hydrogen sulfide. You can’t see dissolved iron in a fresh glass, but the moment it hits air it oxidizes β€” which is why you get orange staining in toilets and tubs, rusty spots on laundry, and that unmistakable rotten-egg smell at the tap.

An air-injection oxidizing (AIO) filter fixes all three at once. As water enters the tank it passes through a pocket of compressed air held at the top; the oxygen instantly oxidizes the iron, manganese and sulfide into solid particles, and the filter media below traps them. Every night the system backwashes automatically, rinses the captured contaminants to drain, and draws in a fresh air pocket β€” so there are no chemicals to mix, no salt to haul and nothing to refill.

Because iron and sulfur foul softeners and reverse-osmosis membranes, the AIO belongs first in the treatment train β€” it protects everything downstream. If your water is also hard, we pair the AIO with a softener; if you want spot-free drinking water, we finish at the kitchen with reverse osmosis. We only recommend what your well-water test actually calls for.

Common questions

Will it get rid of the rotten-egg smell?
Yes. That smell is hydrogen sulfide gas, and the air pocket oxidizes it on contact so the filter media can remove it. Most homeowners notice the odor is gone the same day the system is installed.
Do I have to add chemicals or salt?
No. That’s the advantage of air injection over old-style chlorine or potassium-permanganate systems β€” the only thing doing the oxidizing is a pocket of ordinary air the system refreshes itself. There’s nothing to buy or refill.
How much iron can it handle?
AIO filters handle a wide range of iron, manganese and sulfide, but the right size depends on your exact levels. Very high iron or the presence of iron bacteria can call for a chlorine-injection system instead β€” that’s exactly what the free well-water test tells us.
Does it also soften my water?
No β€” an AIO removes iron, manganese and sulfur, not hardness. If your water is also hard (scale, spotting, dry skin), we add a softener after the AIO so each unit does its job and lasts longer.
How often does it need service?
Very little. It backwashes on its own, and there’s no salt or chemical to add. We recommend a periodic check-up, and the media typically lasts many years before it needs a refresh.

→ See all frequently asked questions

Have well water? Let’s talk.Every well is different. Contact us for more info and a free well-water test — we’ll identify exactly what you have and recommend only what it needs.

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β€œI cannot say enough amazing things about this company and system! We had three companies come out and Hydrology stood out on every level. This company is very professional, answered every question we had and even gave us time to think without β€œpressuring” us to buy! Our water is fabulous the taste and feeling it leaves on skin I am wondering how I have went so long without this system! ”

β€œWow I can definitely feel a difference in my hair, skin, and when I wash my hands. I knew getting a water softener was a priority and I’m so glad I decided to go with Hydrology. I’m thoroughly impressed with the company and the product!”

β€œWe’ve had our system now a month and absolutely love it and we can see and feel the difference immediately. My wife is a hair beautician with over 30 years of experience and definitely can tell the difference with the water which is important for hair and skin. Highly recommend this company and look forward to many years of clean, soft and healthy water!”

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