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7 Types Of Water Softener Systems (Best Options For Hard Water)

types of water softener systems

Water softener systems can be categorized based on:

  • How it works (salt-based, salt-free, magnetic)
  • Location of use (whole house or showerhead)

If you need a continuous supply of softened water, consider a dual-tank water softener with no downtime for the regeneration cycle. Such highly efficient systems work best in commercial settings with uninterrupted water supply needs.

Continue reading to learn more about the seven types of softeners available and decide which suits your specific needs. 

👉Types Of Water Softener Systems For Home Explained!

⚙️Based on Working

Based on how the water softener system works, there are four different kinds of water softeners:

🧂Salt-Based Water Softener

Salt based water softener

Salt-based water softeners (also known as ion exchange water softeners) are the most popular and highly effective systems for removing issues related to hard water with a water hardness of more than 10 GPG. 

They work on the principle of ion exchange, where tiny beads of resin molecules exchange hard water minerals like calcium and magnesium with either sodium ions or potassium. 

A salt-based water softener has three major components

  • A salt or brine tank: It stores salt or brine solution (of sodium or potassium chloride), which is useful during the regeneration cycles for restoring the ability of resins to exchange ions. 
  • A resin tank: A mineral tank contains the ion-exchange resins that perform the water-softening process.
  • A control valve: It helps to manage the water flow and the regeneration cycles.


  • Highly effective in removing all hard water problems
  • It can last for 10–15 years
  • Works based on proven ion exchange technology
  • Cost-effective


💦Salt-Free Water Softeners or Conditioners

Salt-free water softener or conditioners

Salt-free water softeners or water conditioners provide a low-maintenance alternative to salt-based softeners.

The main component of salt-free systems is a conditioning tank with an embedded template or catalytic media. It uses the Template-Assisted Crystallization (TAC) system to transform hard minerals from water into a crystalline form that doesn’t stick to surfaces. 

Salt-free softeners are useful for water with a hardness level of less than 10 GPG. Also, it doesn’t use salt and is safe for people on a low-sodium diet. 

Although these are called “softeners,” saltless water softeners, do not remove the hard water minerals from the water but instead change or condition them structurally to reduce scale buildup. 


  • No salt requirement
  • Low maintenance
  • No wastewater discharge and hence environment-friendly
  • Preserve the minerals in the water


  • It does not address all hard water problems 

🧲Magnetic Water Softeners

Magnetic water softener

Magnetic water softeners are more of a descaler than a water softener that works by applying a magnetic field.

Such devices require a power supply to generate electromagnetic fields. The main components of magnetic softeners are the magnetic coils, which you need to incorporate into your plumbing system. 

Once you apply the electricity, the magnetic coils generate an electromagnetic field used to the flowing water.

This alters the physical properties of the hard chemicals to neutralize their charges and precipitate them as a soft scale. Hence, using such “softeners” may reduce your scaling by up to 50%, less effective than salt-free water conditioners.


  • Can reduce limescale build-up by up to 50%.
  • Doesn’t require salt.
  • Simple installation process and requires minimal maintenance.
  • Environment-friendly.


  • It may increase your power consumption as it requires a continuous electricity supply.
  • It is not a true water-softening solution and, thus, less effective for more than 10 GPG water hardness.

🔁Reverse Osmosis Water Softeners

Reverse osmosis water softener

A reverse osmosis system isn’t a true water softener. Rather, they use a semipermeable membrane or filter to separate the solid impurities from the water. 

The reverse-osmosis systems may contain several prefilters, like carbon filters or sediment filters, a thin semi-permeable membrane for reverse osmosis made up of thin film composite (TFC) materials, and some post filters to block 99.9% of solid contaminants like ions, sediments, chlorine, heavy metals, and other minerals. 

You can remove a small amount of hard minerals (less than 7 GPG) through this filter. However, if you use it for hardness grains that are larger than 7, it may clog the pores. 


  • Effective to remove solid contaminants.
  • It can improve the taste and odor of the water.
  • It is versatile and comes in a compact design to fit anywhere in your house.


  • Hard minerals can build up on the membrane and damage it.
  • Requires regular maintenance.
  • It is not an ideal solution for more than 7 GPG water hardness.

🎯Based On Where It Is Used

There are some common types of water softeners based on where you want to use them:

🏠Whole House Softeners

Whole house softeners

If you want to solve hard water issues in the entire household, look no further than a whole-house water softener. 

Whole-house systems may have a salt-based system to remove hard water minerals and pre-and post-filters to remove other impurities.

Such softeners can have the filtration and softening systems as two different units, as in an independent filtration-softening combo, or as a merged system containing the two functions in one.

Also, if you live in an apartment, consider buying an RV or apartment water-softening system. It is compact, easy to install, portable, requires minimal maintenance, and is cost-effective (as you can top up on regular table salt). 

🚿Shower Head Softeners

Shower head softeners

If you often face dry skin and itchy scalp issues, shower head softeners will be your best choice. These are point-of-use systems for bathroom showers that reduce the mineral content in water and safeguard your skin and hair against hard minerals like calcium and magnesium. 

While showerhead water softeners may come with filters to remove aesthetic impurities and chlorine from water, you shouldn’t confuse “filters” with showerhead “softeners.” 

It works similarly to salt-based models and is best for localized softening. Furthermore, it comes with replaceable filters, is easy to install, is cost-effective, and has no plumbing modification required. 

However, you may need to replace the water filter from time to time to maintain its usefulness. 

For the best result, consider purchasing the ShowerStick water softener

Other than the above ones, there are some special water softener systems you might want to consider for your specific needs:

💦Dual-Tank Water Softeners

A dual-tank water softener can be an excellent choice for large households, hotels, or other commercial settings that require a high supply of soft water per day. 

These are high-end water softeners with two resin tanks filled with resin beads to exchange hard water minerals continuously in a larger volume. 

In dual tank softeners, one tank works around the clock while the other undergoes the regeneration process, allowing it to always provide soft water. The control valve monitors the water usage and switches between the two tanks when needed.

Like traditional models, dual tank systems work on ion exchange with minimal downtime.

Some drawbacks of dual tank water softeners include large space requirements, complex installation processes, and higher electricity bills.

💡Types Of Water Softener Systems: FAQs

Which is better, salt or a salt-free water softener?

Salt-based water softener is better if your water has a high concentration (~10 GPG) of hard minerals.

What water softener size do I need?

You can decide your water softener size based on this formula:

Average Daily Water Consumption x Water Hardness (grains per gallon) x 3 (REGEN frequency in days)

So check your water hardness and factor in your family size to opt for an ideal water softener. Common water softener sizes include 32K, 48K, and 64K grains.

Can you get a water softener for just a bathroom?

Yes, you can get a water softener for just a bathroom. Showerstick is a shower water softener designed for the bathroom and works on the same ion-exchange principle as traditional water softeners.

What are the top water softener brands?

Here is a list of the top water softener brands in 2024:

1. Clack
2. Kinetico
3. GE
4. Waterboss
5. Genesis
6. Culligan
7. Morton
8. Kenmore

Is it worth having a water softener?

Yes, buying a water softener is worth it, considering you face hard water issues like:

1. Soap not lathering
2. Dry and itchy hair and skin
3. Limescale deposits on appliances like water heater
4. Unpleasant taste and odor
5. Heavy minerals clogging and low water flow in pipes and faucets

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