4 Best Water Softeners For Extremely Hard Water

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The best water softeners for extremely hard water recommended here either work by drawing heavy minerals out of the water using an ion exchange or by neutralizing these minerals so that are able to bind together and remain soluble in the water.

Here are some issues water softening and filtration systems fix:

  • Mineral deposits
  • Scale build-up
  • Chalky film on dishes after washing
  • Dry skin and hair after shower.

One major benefit of using the best water softeners for very hard water is that they remove heavy minerals such as iron, calcium, and magnesium from the water flowing into your RV, homes or point-of-use sites.

  1.  BEST OVERALL: AFW Filters Iron Pro 2 Combination Water Softener
  2.  RUNNER UP: Fleck 5600SXT 64,000 Grain Water Softener
  3.  BEST BANG FOR THE BUCK: iSpring ED2000 Whole House Electronic Descaler
  4.  UPGRADE PICK: DuraWater 64k-56sxt-10al 64,000 Grain Water Softener
  5.  SALT-BASED PICK: Fleck 5600SXT 48,000 Grain Water Softener
  6.  SALT-FREE PICK: Watts Premier OneFlow + Salt-Free Filtration System
  7.  MAGNETIC PICK: YARNA Capacitive Electronic Water Descaler System

Best Water Softeners For Extremely Hard Water

The units selected here are based on high customer approval, availability, overall efficacy, and popularity, making them the best water softeners for super hard water in their respective categories.

  • AFW Filters Iron Pro 2 Water Softener

The AFW Filters Iron Pro 2 Water Softener features an iron filter and water softener combination system that gets rid of manganese, sulfur, iron, sand, calcium, sediments, and magnesium.


This top water softening and filtration system boasts of a 64,000-grain capacity, making it ideal for large households and high levels of high hard water.

The metal is filtered using a unique mesh resin filter and includes a device to test for iron content in your water supply.

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The included bypass valve efficiently isolates the water while gardening while the metered regeneration system makes it easy to maintain the softened water production.

But, remember this is a salt-based water softener, and at 120 pounds, it isn’t small at all.

  • Fleck 5600SXT 64,000 Grain Water Softener

Weighing only 180 pounds, this salt-based water softener filters up to 64,000 GPG from your water in a week.


The Fleck 64K Grain Water Softener comes with access to the Pentair Scan and Service app that provides you with detailed configuration information, spare parts information, technical documentation, and a full troubleshooting manual.

The metered regeneration can be programmed using the digital control head to suit your weekly or daily needs, without worrying about adding too little or too much to the system.

While this softener is not crafted to get rid of iron from your water, it is perfect for large homes and effectively softens water by getting rid of magnesium and calciun.

  • iSpring ED2000 Whole House Electronic Descaler

The iSpring ED2000 Magnetic Water Softener is a great solution for fighting off scale build-up in appliances, showerheads and on faucets.


But, like all magnetic water softeners out there, it does not completely remove all heavy minerals from the water, so clothing may still suffer from premature fading.

The 2-pound water softener can be installed on PVC, PEX, and several other pipes out there, by wrapping the dual antenna cables from the water softener around the water pipe and then plugging the unit into a power outlet.

The neutralized water doesn’t just stop build-up; it breaks down already existing limescale to give your home a cleaner look and feel.

  • DuraWater 64k-56sxt-10al 64,000 Grain Water Softener

This salt-based water softener gets rid of calcium, magnesium, and even traces of iron to protect your clothing, air, and pipes from hard water.


Being a 64,000 grain capacity water softener means it is ideal for a large household. It comes with a digital LCD screen with a touchpad controls the water softener letting you customize the metered regeneration system to suit your weekly schedule.

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The display can also be used to view error codes for helpful troubleshooting. The unit weighs 140 pounds and includes a bypass valve and an installation tutorial for handy DIYers.

  • Fleck 5600SXT 48,000 Grain Water Softener

The Fleck 5600SCT salt-based water softener employs a process known as “ion exchange” to get rid of magnesium and calcium from your water supply with impressive effect.

It boasts of 48,000-grain capacity that treats medium to large households and weighs only 80 pounds when full, so it may need some floorplanning before you install.

It comes with a water softener so you don’t waste salt on your lawn care needs. The metered regeneration system is programmable using the LCD screen so the system only regenerates the resin on your schedule.

ALSO SEE: Best Water Softener for Car Washing

  • Watts Premier OneFlow + Salt-Free Filtration System

This water softener neutralizes hard water using a TAC system to attract heavy minerals.


It typically neutralizes these things by transforming them into harmless, inactive crystal particles within the water, reducing limescale on fixtures. Plus, it gets rid of scale build-up by preventing the minerals from binding to anything else.

This 15-pound water softener uses neither salt or electricity but still requires a cartridge replacement once every 3 years to keep working efficiently.

Although pricier than competing brands out there, this unit has a maintenance-free service life. This means you need not worry yourself about monitoring levels.

  • YARNA Capacitive Electronic Water Descaler System

The water softener makes use of magnetic pulses to neutralize heavy minerals as they pass through the water pipe. By doing so, the minerals turn into crystals and don’t end up bonding to anything.


The result of this is the prevention and reduction of limescale build-up in your water systems.

Boasting of a simple installation, this magnetic water softener is suitable for small to average households of up to 20 units.

Best Water Softeners For Florida

Living in Florida, and need to use a top water softener for Florida hard water? You’re in the right place!

Here are the best water softening and filtration systems in Florida:



Eddy Electronic Water Descaler CHECK ON AMAZON
Abundant Flow Water WS-48k-91SXT 9100sxt CHECK ON AMAZON
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  • Eddy Electronic Water Descaler

Quick Features

  • It is affordable
  • It is 100% salt-free
  • It is unable to handle whole water system

This unit can be hooked with ease to your existing plumbing and doesn’t need chemicals, thus making it a preferred option amongst eco-friendly enthusiasts.

It makes use of electromagnetic waves in its electronic system to break up the minerals in the water.

It’s crafted in a unique way to remove magnesium, calcium, and manganese compounds, but can also help in the complete reduction of limestone buildup in places such as appliances and bathtubs.

  • iSpring RCC7AK

Perfect for well water in Florida, the iSpring RCC7AK produces liquid better than bottled spring water right out of the faucet

Quick Features

  • It is affordable
  • It leaves in beneficial minerals
  • It doesn’t connect to entire water system

This device uses reverse osmosis to get rid of harmful contaminants in your well water. However, it does keep the beneficial minerals before releasing it back into your pipes, providing you with good tasting, clean, healthy water.

Its build allows you mount it under the sink but can be connected next to your fridge if you want to get your clean, drinkable water from there.

Installation is easy and saves you from spending extra on having a professional install it for you.

  • Abundant Flow Water WS-48k-91SXT 9100sxt

For abundant flow water for large families, this device is rated 4/5. Even the Duggar family couldn’t bring this softener down.

Quick Features

  • Handles high water volume
  • High levels of purification
  • Uses salt

This water system is able to alternate between its two tanks, which means that one can work while the other regenerates and vice versa, creating a steady flow of water without interruption and prolonging the life of both.

While it’s on the expensive side, the 9100sxt justifies its price with sheer volume and quality. This softener is able to process extremely mineral-dense water, and is particularly well suited to high iron levels. You should note that this is a salt-based system, so it may impart a slight aftertaste and that signature soapy feel.

Author: Howard S. Baldwin

My name is Howard S. Baldwin. I am a work-at-home dad to three lovely girls, Jane + Hannah + Beauty. I have been blogging for the last 3 years. I worked for other Home and Lifetsyle blogs, did hundreds of product reviews and buyers’ guides. Prior to that, I was a staff accountant at a big accounting firm. Needless to say, researching and numbers are my passion. My goal is to be an informative source for any topic that relates to DIY life and homemaking.

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