It’s not just filtration—it’s transformation for Monroe County homes. Softer water and scale protection without salt tanks, chemicals, or cartridges.
Advanced Technology Inside
Proprietary reverse-ionization technology physically decomposes hard-water minerals down to a molecular level while exchanging their ionic charge, using a controlled electromagnetic field to restructure water into a balanced state—without salt, chemicals, or filters. Great for Marathon properties on municipal water, wells, or cisterns, and built for Keys conditions.
Creates a controlled turbulence zone for maximum contact and efficiency.
Breaks down hardness physically through catalytic media decomposition, without chemicals—great for Marathon’s moderate hard water.
Creates ionization and enhances the transfer and efficiency of all ions.
Stabilizes and conditions the water before it exits the system.
Technical Specifications
Premium 304 stainless steel, no external power supply, no chemicals, and no wastewater. Great for the Keys’ coastal salt air and storm season—fewer parts to corrode. The internal alloy keeps releasing electrons for up to ten years with no disassembly and no routine maintenance in that time.
86%
Scale inhibition rate
17.6 GPM
Flow rate
10 yr
Alloy service life
0 W
External power needed
Fits most standard pipes, plumbed in where the water enters the home—ideal for Marathon homes across the Keys.
Treats water mains up to three kilometres in length.
The recommended hardness range—ideal for Marathon’s moderate hard water.
Stainless steel built for Florida Keys salt air and the long haul.
No outlet, no controller—nothing to reset after a Florida Keys outage.
Nothing is discharged to a drain, and healthy minerals stay in the water—ideal for Florida Keys homes.
Limited-Time Offer
$895
Installed
Regularly

Stainless conditioning unit, fittings, mounting hardware & all parts.

Plumbed into your main line and commissioned by Marathon pros.

We test your Marathon water so you know what you’re starting from.

No surprises—one low price includes everything.

No salt to buy, no filters to replace, and no electricity to run—simple for Marathon living.

Treated at the source, for the whole Marathon home.
How It Works
Marathon’s moderate-hard water can carry calcium, magnesium, and other minerals into your plumbing—then leave the system cleaner, conditioned, scale-free, and more corrosion-resistant in our salty Keys air.
Decomposition and charge exchange—not ion swapping
The alloy inside the device changes the structure of the metal ions passing through it, leaving calcium and magnesium ions unable to crystallize—helpful with Marathon’s moderate hard water. Preventing those ions from combining with acid radical ions is what produces the scale inhibition effect. An internal diversion device pressurizes the water flow and brings it into full contact with the alloy, so the alloy releases free electrons efficiently.
Marathon’s moderate-hard water enters the system carrying calcium, magnesium, and other minerals.
A catalytic core physically decomposes minerals, breaking them down into microscopic particles and ions—helpful for managing scale from Marathon’s moderate-hard water.
Ionic charge is exchanged and minerals are reorganized with water molecules at the microscopic level for smoother, conditioned water—great for Marathon’s coastal, salt-air environment.
Water exits clean, soft, scale-free, and ready for coastal conditions.
It works on the scale you already have
Helps prevent and reduce new scale, and also softens and removes scale already built up inside your plumbing—useful with Marathon’s moderate hard water.
Mineral Decomposition & Ion Exchange
The minerals aren’t stripped out and swapped for sodium. They’re decomposed, recharged, and reorganized—so your Marathon water leaves balanced rather than stripped.
Why It’s Different
Most water softeners need a brine tank, a drain line and a power supply, and most filters need replacing. This system needs none of it—great for Keys homes where simple, low-upkeep matters.
| What it takes to run | Conventional Softener | Reverse Ionization This System |
|---|---|---|
| Salt | Bags of brine to buy, carry, and refill | No salt, no backwash, no mess |
| Chemicals | Additives and by-products to manage | No additives and no by-products |
| Electricity | An outlet and a controller to reset | Works 24/7 automatically, unpowered |
| Filters | Cartridges on a replacement schedule | Nothing to replace |
| Upkeep | Regeneration cycles and routine service | High performance with no routine upkeep |
| Running cost | Salt, power and consumables every year | Lower utility and repair costs |
| Build | Tanks, valves and moving parts | Premium 304 stainless steel |
Swipe the table sideways to compare both columns.
Installed for $895—regularly $1,500.
One stainless unit, plumbed in at the main line, conditioning every tap in the house with an 86% scale inhibition rate and a 17.6 GPM flow rate. Built for municipal supply or well/cistern setups common in the Florida Keys, and suited for hardness below 300 ppm. Not sure where your water falls? We’ll test it during your Marathon visit.
Key Benefits
Scale quietly costs you money—pressure, appliance life, and repair bills. In Marathon, it adds up fast. Here’s what changes once water stops depositing it.
Results vary with source water and household usage. We test your water on the visit so you know what you’re starting from in Marathon.
Ideal For
Installed on the main line, it treats everything downstream—your plumbing, water-using appliances, and even outdoor irrigation—ideal for Marathon homes on municipal supply, wells, or cistern setups.
Cleaner Water. Better Living. In Marathon.
Installed by a Florida plumbing company that knows Keys conditions—and stands behind the work.
A premium 304 stainless body—chosen with coastal salt air in mind—rated for up to ten years of service.
No salt, no power, no filters, and no regeneration cycle—very little to think about in a busy Marathon household.
We stand behind our products and the quality of our service in Marathon.
Join homeowners across Monroe County and the Florida Keys who choose Mr. Pure Water.
Cleaner Water. Better Living. In Marathon.
Conditioned water is gentler to wash in, so skin and hair feel softer—great after a day at Sombrero Beach.
Helps eliminate the spotting and buildup that fogs shower glass and rings fixtures in Marathon homes.
Soap and detergent work better in Marathon’s moderate-hard water—use less, rinse cleaner.
The Mr. Pure Water Whole-House Reverse-Ionization System treats your water at the main line, and it does it without salt, chemicals, filters or a power supply—ideal for Marathon homes on municipal supply or local well/cistern setups where sediment control can matter. Hard water enters carrying calcium, magnesium, iron and heavy metals. Inside the premium 304 stainless body, a turbulent flow chamber brings the water into full contact with a catalytic core that physically decomposes those minerals into microscopic particles and ions. A controlled electromagnetic field then exchanges their ionic charge and reverses their polarization, reorganizing the minerals with the water molecules so they can no longer crystallize or combine with acid radical ions—which is what produces the 86% scale inhibition effect. A polished flow chamber stabilizes the water before it exits, and it exits clean, soft, scale-free and corrosion-resistant with its healthy minerals intact—helpful in the Florida Keys’ salt-air environment. The internal alloy keeps releasing free electrons for up to ten years with no disassembly and no routine maintenance, at a 17.6 GPM flow rate, with no wastewater and nothing discharged to a drain.
Limited-Time Offer
$895
Installed
Regularly