The Pros and Cons of Salt-Free vs. Salt-Based Water Softeners: Making the Best Choice

by | Plumbing

Originally published: July 11, 2023
Last Updated: April 27, 2024

Reading time: 11.975 minutes

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plumbinghub.info is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, amazon.co.uk, amazon.ca or amazon.it.

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When it comes to choosing between a salt-free and salt-based water softener, it’s important to weigh the pros and cons of each to make the best decision for your home.

Salt-based water softeners work by removing hard water minerals through a process that involves ion exchange. They are effective at eliminating limescale, reducing detergent and soap usage, making cleaning easier, and providing benefits for eczema sufferers. However, they do have drawbacks such as environmental impact.

On the other hand, salt-free water conditioners operate by altering the structure of minerals in the water rather than removing them. They require less maintenance, are environmentally friendly, and serve as an alternative to traditional water softeners. Nevertheless, they do not provide the same soft water benefits.

When deciding between the two, consider factors like your plumbing system and maintenance preferences to determine the most suitable option for your needs.

What is a Salt-Based Water Softener

Are you curious about how a salt-based water softener works? This type of system uses ion exchange to remove hard water minerals, with two tanks – a resin tank and a brine tank.

There are advantages to using a salt-based water softener, such as preventing scale in pipes, improving skin and hair, and protecting appliances.

However, it’s important to consider the disadvantages as well, such as the need to purchase and lift bags of salt and the added sodium in the water.

How does a salt based water softener work

A salt-based water softener works by using ion exchange to eliminate hard water minerals from your water. Here’s how it works:

  • Water containing minerals like calcium and magnesium flows into the resin tank.
  • Inside the resin tank, tiny resin beads attract and hold onto the minerals.
  • Sodium ions from the salt in the brine tank are then released into the water, swapping places with the hard water minerals.
  • The water, now free of hard water minerals, flows out of the resin tank and into your home’s plumbing system.
  • The resin beads are then regenerated by flushing them with a brine solution, removing the accumulated minerals and preparing them for the next cycle.

This process effectively softens the water, preventing scale in pipes, improving the performance of appliances, and providing benefits for your skin and hair.

However, it’s important to consider the pros and cons of salt-based water softeners before making a decision for your water treatment needs.

When should I use salt-based a water softener

If you’re looking to effectively eliminate hard water minerals and enjoy the benefits of softened water, you should consider using a salt-based water softener. They remain the only effective way of stopping limescale in the home completely. You can find our rundown of the best water softeners here.

What are the advantages of a Salt-Based Water Softener

A salt-based water softener offers several advantages.

Firstly, it effectively removes existing limescale, preventing further buildup and extending the lifespan of your appliances.

Secondly, it requires less detergent in your washing machine, saving you money in the long run.

Additionally, using less shampoo and soap becomes possible as the softened water creates more lather.

Cleaning also becomes easier as soap scum and residue are reduced.

Lastly, for individuals with eczema, a salt-based water softener can provide relief by reducing skin irritation and dryness.

Removes existing limescale

By using ion exchange, a salt-based water softener actively removes existing limescale from your plumbing system, ensuring improved efficiency and preventing further scale buildup. This is beneficial because it helps to extend the lifespan of your pipes and appliances.

Less detergent in washing machine

You’ll be pleased to know that with a salt-based water softener, you can use less detergent in your washing machine and still achieve clean, fresh-smelling clothes. This is because the soft water produced by salt-based water softeners allows the detergent to lather more effectively, resulting in better cleaning performance. 

While salt-based water softeners have the advantage of reducing detergent usage and improving cleaning performance, salt-free water softeners will not have the same impact on detergent usage. 

Less Shampoo and Soap

Enjoy the benefit of using less shampoo and soap when you have a salt-based water softener installed in your home. With a salt-based water softener, you can experience the following advantages:

  • Reduced soap and shampoo usage
  • Enhanced lathering and foaming
  • Softer and smoother skin and hair
  • Elimination of soap scum and residue
  • Longer-lasting soap and shampoo products

These benefits are a result of the salt-based water softener’s ability to completely remove hard water minerals, making your bathing experience more enjoyable and cost-effective.

Cleaning made easier

With a salt-based water softener, you can effortlessly tackle cleaning tasks around your home. These systems remove hard water minerals, preventing clogs and improving the performance of your appliances.

By eliminating mineral deposits, you’ll experience cleaner dishes, fewer spots on glassware, and less soap scum in your bathroom. Your laundry will also be softer and brighter, making it easier to keep your clothes looking their best.

Ultimately, a salt-based water softener can make cleaning a breeze, making it a great choice for those seeking an easier and more efficient way to maintain a clean home.

Better for eczema sufferers

For eczema sufferers, a salt-based water softener can provide relief and improve the condition of your skin. 

A salt-based water softener may be the best choice for eczema sufferers looking to alleviate their symptoms and improve their overall skin health.

Last a long time

Salt-based water softeners use ion exchange to eliminate hard water minerals, providing numerous benefits such as preventing clogs, improving skin and hair, and protecting appliances. These systems have a longer lifespan compared to other systems and completely remove hard water minerals. 

What are the disadvantages of a a Salt-Based Water Softener

When considering the disadvantages of a salt-based water softener, one key point to examine is its environmental impact. The process of ion exchange used by these systems requires the use of salt, which can contribute to increased levels of sodium in the environment.

Additionally, the need to regularly purchase and lift bags of salt for the brine tank can be inconvenient and burdensome for some individuals.

Environmental impact

Although salt-based water softeners have numerous benefits, they also have several disadvantages that can negatively impact the environment. Some of the environmental impacts of salt-based systems include:

  • Increased salt discharge into wastewater systems
Pros of Salt-Based Water SoftenersCons of Salt-Based Water Softeners
Prevent limescaleRequires purchasing and lifting bags of salt for brine tank
Improve skin and hairAdds some sodium to the water which is a concern for low-sodium diets
Protect appliances
Longer lifespan compared to other systems

What is a salt-free water conditioner

Wondering how a salt-free water conditioner works?

Interested in when you should use one?

Let’s explore the advantages and disadvantages of a salt-free water conditioner.

How does a water conditioner work

A salt-free water conditioner, also known as a salt-free water softener, is a device that conditions the water by crystallising calcium and magnesium ions. It works by altering the structure of these minerals, preventing them from sticking to surfaces and forming scale.

Here are five key points to understand how a salt-free water conditioner operates:

  • Crystalising calcium and magnesium ions: The conditioner changes the chemical makeup of the minerals in the water, transforming them into crystalised particles.
  • Preventing scale formation: These crystalised particles are unable to adhere to surfaces, thus preventing the formation of scale in plumbing and appliances.
  • No salt or sodium intake: Unlike salt-based water softeners, salt-free water conditioners don’t require the use of salt or add sodium to the water, making them suitable for individuals on low sodium diets.
  • Better soap lather: By removing the hardness minerals, a salt-free water conditioner can improve the lathering ability of soaps and detergents.
  • Potential limitations: While salt-free water conditioners offer benefits, they may not completely eliminate the hardness of the water, leading to potential issues such as cloudy dishes, dry skin and hair, scale buildup, and increased heating bills.

Understanding how a salt-free water conditioner works is crucial in deciding whether it’s the right choice for your specific needs.

When should I use a salt-free water conditioner

If you’re looking to remove existing scale from your plumbing system or if your plumbing system doesn’t suit a traditional water softener, a salt-free water conditioner may be the right choice for you.

Salt-free water conditioners work by crystalising calcium and magnesium ions, preventing scale formation in your plumbing.

While they don’t soften the water, they can help address some of the problems associated with hard water.

You can find our article on the best water conditioners here.

Remove existing scale

Over time a salt free softener can breakdown the existing scale in your system.

When plumbing system doesn’t suit a water softener

When your plumbing system can’t accommodate a water softener, consider using a salt-free water conditioner instead. They generally are installed in line so don’t require a drain connection or overflow that a traditional softener would.

What are the advantages of a salt-free water conditioner

A salt-free water conditioner offers several advantages over a salt-based water softener.

Firstly, it requires low maintenance, as it doesn’t need regular salt refills or tank cleanings.

Secondly, it’s environmentally friendly, as it doesn’t discharge excess salt brine into the wastewater.

Lastly, it consumes less media, meaning less potassium or other chemicals are needed for the conditioning process.

Low maintenance

Maintaining a salt-free water conditioner is hassle-free and requires minimal effort. Here are some reasons why:

  • No need to purchase and lift bags of salt for the brine tank
  • No sodium intake, making it suitable for low sodium diets
  • Less maintenance needed compared to salt-based systems

Considering these advantages, a salt-free water conditioner can be a low-maintenance and convenient option for your water softening needs.

Environmentally friendly

Using a salt-free water conditioner is an eco-friendly choice that offers several advantages over salt-based water softeners as they don’t require the salt or the water for regeneration.

Low media consumption

You’ll be pleased to know that a salt-free water conditioner offers the advantage of low media consumption compared to a salt-based water softener. This can save you time and money in the long run.

Water softener alternative

A salt-free water conditioner is an alternative to a traditional water softeners as it can be installed in situations that don’t suit a traditional softener. In addition it:

  • Doesn’t require the use of salt or chemicals
  • Doesn’t produce wastewater
  • Doesn’t add sodium to the water
  • Low maintenance and easy to install
  • Environmentally friendly option

What are the disadvantages of a salt-free water conditioner

Using a salt-free water conditioner means that you won’t experience the benefits of soft water, such as:

  • Eliminating limescale
  • Improving skin and hair
  • Protecting appliances

Without softening the water, hard water problems like:

  • Cloudy dishes
  • Dry skin and hair
  • Scale buildup
  • Increased heating bills

may persist.

Additionally, salt-free systems require more maintenance and can produce scale buildup, reducing their effectiveness over time.

No soft water benefits

If you choose a salt-free water conditioner, you won’t experience the benefits of having completely soft water. 

Should you Pick a Salt or Salt-Free System?

When it comes to choosing a water softening system, you need to decide between a salt-based or salt-free system.

Salt-based water softeners use ion exchange to eliminate hard water minerals. They consist of two tanks – a resin tank and a brine tank. These systems completely remove hard water minerals and have a longer lifespan compared to uncertified systems. However, they require purchasing and lifting bags of salt for the brine tank and add some sodium to the water, which may be a concern for people on low sodium diets.

On the other hand, salt-free water softeners, technically called salt-free water conditioners, condition the water by crystalising calcium and magnesium ions. They only have one tank containing potassium and produce better soap lather. However, they don’t soften the water, so hard water problems may persist. They also require more maintenance and can produce scale buildup, and the water sitting inside the system can reduce effectiveness.

When making the best choice, consider the pros and cons of both salt-free and salt-based water softeners.

It is my opinion that a salt based water softener is the best option unless there is a reason that you can’t have one. I.e your plumbing system isn’t suitable or the slight increase in sodium is going to affect your health.

Frequently Asked Questions

Are Salt-Based Water Softeners More Effective at Removing Hard Water Minerals Compared to Salt-Free Water Conditioners?

Salt-based water softeners are more effective at removing hard water minerals compared to salt-free water conditioners. They use ion exchange to completely eliminate minerals, while salt-free systems only condition the water and may not fully solve hard water problems.

How Often Do Salt-Based Water Softeners Need to Be Maintained Compared to Salt-Free Water Conditioners?

Salt-based water softeners require less maintenance compared to salt-free water conditioners. You’ll need to regularly purchase and lift bags of salt for the brine tank and will need occasional maintenance. A salt-free system will just require the media to be changed when it becomes less effective.

Can a Salt-Free Water Conditioner Completely Eliminate All the Problems Associated With Hard Water, Such as Scale Buildup and Cloudy Dishes?

No, a salt-free water conditioner cannot completely eliminate all the problems associated with hard water, such as scale buildup and cloudy dishes. These issues may still persist and require additional maintenance.

Are There Any Potential Health Risks Associated With Consuming Water From a Salt-Based Water Softener, Especially for Individuals on Low Sodium Diets?

Consuming water from a salt-based water softener may pose health risks for individuals on low sodium diets. The system adds some sodium to the water, around 12.5mg per glass, which may be a concern.

Conclusion

In conclusion, when deciding between a salt-free or salt-based water softener, it’s important to consider your specific needs and preferences.

Salt-based systems offer complete removal of hard water minerals and have a longer lifespan, but require the purchase and lifting of salt bags and may add sodium to the water.

Salt-free systems eliminate the hassle of salt and sodium intake, but don’t actually soften the water and may require more maintenance.

Ultimately, the best choice depends on your priorities and concerns. Check out or articles on the best salt-free and salt based water softeners.

Disclaimer

plumbinghub.info is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, amazon.co.uk, amazon.ca or amazon.it.

About Nick Jolliffe

With over two decades of experience in the Plumbing and Heating industry, Nick has become a trusted expert in the field. He has developed an impressive product knowledge across all aspects of plumbing and heating, including renewables, making him the go-to person for advice and product recommendations for any plumbing application. Whether you're a tradesperson or a DIY consumer, you can trust Nick to provide you with the right solution for your plumbing needs.

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