What Does The Salt Do In A Water Softener

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How Does a Water Softener Work? (And What Do They Do) | Water softener ...

What Does the Salt Do in a Water Softener?

Water softeners are an essential appliance for many homeowners, as they remove calcium and magnesium minerals from water, which can cause scale buildup and make water taste bitter. But how exactly does a water softener work? And what role does salt play in the process?

In this blog post, we will take a closer look at the inner workings of a water softener and explore the crucial role that salt plays in the softening process. We will provide a comprehensive overview of the technology and discuss the latest trends and developments in water softening.

The Role of Salt in Water Softening

Salt is the key ingredient in a water softener. It is used to create a brine solution, which is a highly concentrated solution of salt in water. The brine solution is then passed through a resin bed, which is a tank containing millions of tiny resin beads.

As the hard water passes through the resin bed, the calcium and magnesium ions in the water are attracted to the resin beads and exchange places with the sodium ions in the brine solution. This process is called ion exchange.

The softened water is then released from the water softener, while the calcium and magnesium ions are trapped in the resin bed. The resin bed is eventually regenerated by passing the brine solution through it again, which washes away the calcium and magnesium ions and recharges the resin beads with sodium ions.

Types of Salt for Water Softeners

There are several different types of salt that can be used in a water softener, including:

  • Rock salt: This is the most common type of salt for water softeners. It is mined from underground salt deposits and is available in both coarse and fine grades.
  • Solar salt: This salt is produced by evaporating seawater. It is typically less expensive than rock salt, but it may contain impurities.
  • Potassium chloride: This salt is a substitute for sodium chloride for people who are on a low-sodium diet. It is more expensive than sodium chloride.

Choosing the Right Salt for Your Water Softener

The type of salt that you choose for your water softener will depend on several factors, including the size of your water softener, the hardness of your water, and your budget. It is important to follow the manufacturer’s recommendations for the type of salt to use.

Benefits of Using a Water Softener

There are many benefits to using a water softener, including:

  • Reduced scale buildup: Water softeners can prevent scale buildup in pipes, appliances, and fixtures. This can extend the lifespan of your appliances and make them more efficient.
  • Improved water taste: Softened water tastes better than hard water. It is not bitter or astringent, and it is more refreshing.
  • Softer skin and hair: Softened water can make your skin and hair feel softer and smoother. It can also reduce the amount of soap and shampoo that you need to use.
  • Reduced water usage: Water softeners can help you save water by reducing the amount of water that is needed to rinse soap and shampoo from your skin and hair.


Water softeners are a valuable addition to any home. They can improve the quality of your water, reduce scale buildup, and make your skin and hair feel softer. Salt is the key ingredient in a water softener, and it plays a crucial role in the softening process. By understanding how water softeners work, you can choose the right salt for your system and enjoy the benefits of softened water.

Are you interested in learning more about water softeners? If so, I encourage you to do some research online. There are many resources available that can help you understand the technology and choose the right water softener for your home.

How To Add Salt To a Water Softener | Distillata
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