Advanced ion-exchange technology removes the calcium and magnesium behind Duck Key’s hard water—reducing scale, spots, and dry skin so every tap runs soft, conditioned water.
The System Itself
A high-capacity resin tank and built-in brine cabinet, installed where water enters your Duck Key home. It runs itself—the electronic valve tracks your real usage and regenerates on demand, so you’re not wasting salt.
Key Features
Sized for a family home in Duck Key and engineered to stay out of your way: high grain capacity, a valve that regenerates on demand rather than on a clock, and a high-flow design that keeps your pressure where it should be.
42,000
Grain capacity, up to
1-6
Person households
10 yr
Tank warranty
5 yr
Electronics warranty
Regenerates based on the water you actually used, not on a fixed schedule.
Tracks household usage and adjusts itself to match your pattern.
Calcium and magnesium—the two minerals behind hard-water scale and spotting in Duck Key.
Keeps pressure strong—showers + appliances at once in Duck Key homes.
Tells you when to top up—before you notice changes in your Duck Key water.
Reliable, low-draw running that costs very little to keep on.
Whole-House Water Softener for Duck Key
$1,495
Installed
Regularly

Resin tank, brine cabinet, electronic control valve & all parts.

Plumbed into your main line and commissioned by professionals in Duck Key.

We test your water and program the valve to your household before we leave your Duck Key home.

No surprises. One low price includes everything.

Backed by a 10-year tank and 5-year electronics warranty.

Treated at the source, so your whole Duck Key home runs soft.
How It Works
Hard water from the main supply enters the system and leaves as soft, conditioned water. The softener removes the hardness minerals—calcium and magnesium—that cause scale, spots and dry skin, giving you soft, luxurious water throughout your Duck Key home.
Why hard water is a Duck Key problem
Calcium and magnesium are dissolved rock. They do not filter out the way sediment does—they come out of solution as scale on anything warm or wet: the inside of your water heater, the shower glass, the dishwasher element, the faucet aerators. With the hard water common in Duck Key and the Florida Keys, ion exchange is the only method that actually takes them out of the water rather than just changing how they behave.
Sits on top of the tank, monitors usage and regenerates automatically when the resin needs it.
Ion-exchange resin attracts and removes hardness minerals as your Duck Key water flows through.
Holds salt for automatic regeneration, so the resin is recharged and you always have soft water.
It regenerates on demand, not on a clock
Timer-based softeners regenerate whether you needed it or not—wasting salt and water on a quiet week, and running out mid-cycle on a busy one. This valve meters what the house actually uses and recharges the resin at the right moment, a smart fit for Duck Key homes on municipal or desalinated water.
See & Feel the Difference in Duck Key
Softening is one of the few upgrades you notice right away. Showers feel better, glassware comes out clearer, and the ring around faucets in your Duck Key kitchen and baths stops coming back.
| Around the house | Before - Duck Key Hard Water | With a Softener After - Soft Water |
|---|---|---|
| Pipes, heater & fixtures | Hard water scale and buildup in Duck Key | Helps stop scale and spotty fixtures |
| Dishes & faucets | Spots on dishes, glassware, and faucets | Shiny, like-new fixtures—less scale buildup |
| Skin & hair | Rough, dry skin and hair from hard water | Softer skin and silkier hair |
| Laundry | Stiff, scratchy laundry | Softer, fluffier laundry |
Swipe the table sideways to compare both columns.
Installed for $1,495 in Duck Key — regularly $3,000.
One system, plumbed in at the main line, treating every tap in the house. It is backed by a 10-year tank warranty and a 5-year electronics warranty, and it suits municipal or desalinated water common across Duck Key and the Florida Keys for homes of one to six people. If you are not sure how hard your water actually is, we will test it as part of the visit.
Why Duck Key Homeowners Choose Us
Installed by a Florida plumbing company experienced with Florida Keys homes—and we stand behind our work.
Components engineered for reliable, long-term performance in the Florida Keys.
Top up the salt when the indicator asks—the valve handles the rest.
We stand behind our products and the quality of service we bring to Duck Key.
Join homeowners across Monroe County and Duck Key who choose Mr. Pure Water.
Ideal For
Warranty
Hardness minerals are removed, so water feels smoother in Duck Key the moment you step in.
Helps maintain natural moisture and leaves skin and hair feeling healthier in our warm, humid Keys climate.
Soap and shampoo lather properly in soft water, so you use noticeably less of both.
The Mr. Pure Water Whole-House Water Softener uses advanced ion-exchange technology to remove the calcium and magnesium that cause hard water—before it reaches a single fixture. That’s especially helpful in Duck Key and across the Florida Keys, where homes often use municipal or desalinated water and still deal with mineral scale. A high-capacity resin tank—up to 42,000 grains—does the work, while an electronic control valve meters how much water your household actually uses and regenerates on demand rather than on a timer. The built-in brine cabinet keeps the resin recharged, and a low-salt indicator tells you when to top it up. The result is soft, conditioned water at every tap: less scale in the water heater, fewer spots on glassware, less film on the shower door, and noticeably less soap and detergent to get the same clean—perfect for homes in Duck Key, Indies Harbor, and Harbor Village.
Whole-House Water Softener in Duck Key
$1,495
Installed
Regularly