Best Water Softener Salt Reviews – High-Quality Choices For Every Budget

Best Water Softener Salt Reviews

There are a lot of water soften​ing salt types available for the best water softeners and it can be a bit confusing at first. Some are much cheaper than others but they will leave a messy build up in your brine tank.

More on this in a bit…

As for many things, it’s better to spend a bit more on softeners and to choose quality over prices. A good quality softener salt will save you time and money in the long run so it’s wiser to choose the best one for you from the start.

In our ​review, we are first going to look at the different types of softener salts and what they can do for you. We are then going to give you our selection of the 5 best water softening salts.

Let's start!

Best Water Softener Salt Comparison Table:

​Updated as of September 2018.

Water Softener Salt Types

First of all, there are two different kinds of softener salt, sodium chloride, and potassium chloride.

Sodium chloride is what is used for table salt. For your water softener, you need to buy salt specifically designed for water softeners. Table salt will not do.

Potassium chloride is 99.9% sodium-free and is ideal if you require a low-sodium diet. It’s more expensive and more difficult to find.

To know the quality of the salt, you need to look for the purity of the salt. Salt always contains some impurities and trace minerals. These impurities will create a mushy build up in your tank that needs to be cleaned up regularly. They can also create a salt bridge when salt creates a hard crust over the water, and this means your softener will not regenerate properly.

There are three water softening salt types.

Rock salt

It’s a naturally occurring mineral obtained from underground salt deposit by mining methods. It’s purity level vary from 98% to 99%. It has a water insoluble level of 0.5 to 1.5%. It’s not recommended for water softener. The insoluble particles will create a buildup in the tank which will have to be cleaned several times a year.

Solar salt

It’s a natural product created by evaporation of seawater or inland brine. It has a purity level of 99.5% or higher. It has a water insoluble level less than 0.03%. It usually comes in the form of crystals but can also be in the form of pellets or blocks. If you have a big household or very hard water, this ​will not be your best choice. This type of salt is more likely to create a buildup or a salt bridge.

Evaporated salt

It’s manufactured by dissolving underground salt deposits to brine and evaporating the moisture. It has a purity level between 99.6% to 99.99%. It has a water insoluble level of less than O.O1%. It comes in the form of pellets and is the highest quality.

Let’s take a look at the 5 best water soften​ing salts.

Morton Salt 1530 Water Soften​ing Salt Pellets, 50 Lbs.

Morton Salt 1530 Water Softener Salt Pellets, 50 Lbs.

Morton is better known for its table salt but they also manufacture high quality evaporated salt for water softener.

It’s not the best salt for water softener available but will definitely work for you if your water is not too hard.

This salt is suitable for all models of softeners.

The compressed shape of the softener pellets means that they create less mushing.

MORTON SALT 50 lbs. Systemsaver Pellet

The patented SystemSaver formula from Morton is the improved version of the regular evaporated salt and is endorsed by many reputed brands of softeners.

They are the best water softener pellets from Morton. It will keep your Morton water softeners running longer and cleaner by eliminating most of the buildup. It also eliminates more iron and is phosphate-free.

In the long run, you will reduce the amount of salt needed and this will reduce the overall cost and the cleaning of your tank will be easier. It’s NSF certified, is well-packaged, and also comes in 40 lbs. bags.

These solar salt crystals by Diamond Crystal have a purity of 99.6%. They have been evaporated by the sun and the wind and are naturally white and opaque.

They have a fairly low insoluble content for softener salt crystals and will minimize the tank residue and bridging.

It’s been certified by the NSF. One bag can last up to 3 months and is suitable for water that is not too hard or a small to medium household.

Diamond Crystal Iron Fighter Pellets Bag 40 lbs.

These evaporated salt pellets from Diamond Crystal have been specially designed for water with a high iron content. A good indication of a high iron content in your water is rust stains on laundry, fixtures, sinks, and tubs. This is a common problem in cities and private wells.

They are more expensive but are well worth the price to help fight rust on your appliances and fixtures. It contains an FDA approved additive. You will find that your water smells better and your skin becomes softer.

They are virtually 100% water soluble and will leave your tank clean and free of bridging much longer. They are suitable for most types of softeners. Their patented two handles bag makes it easier to carry.

These potassium chloride pellets from Cargill are the best alternative to softener sodium pellets.

If you need a low-sodium diet, this is a must for you.

They have a purity level of 99.1% which means that it has a low insoluble content.

The buildup in your tank will be minimized and your health preserved. These are suitable for all kind of water softeners.

  • ​Size: 50 lbs 
  • Contains quality, high purity salt
  • Designed for use in all models
  • Compressed pellet shape reduces mushing
  • Intended for commercial water softeners
Morton Salt 1530 Water Softener Salt Pellets, 50 Lbs.

​Hurry! Grab this today and get a HUGE deal only until the end of September 2018.

To Conclude

To recap what we have seen in our GosuReviews-certified water soften​ing salt reviews, the best salt is one with a high purity level and a low insoluble content level. Solar salt and evaporated salt are both suitable if your water is not too hard. If your water is very hard, we would recommend using evaporated softener salt, which contains less insoluble content.

Finally, if your water has a high iron content, we would urge you to use the Iron Fighter, which will save you a lot of maintenance on your appliances in the long run.

And ultimately, remember that you usually get what you pay for. What you save on your softener salt, you will pay in maintenance later on. Grab only the REAL DEAL using our links, and stay away from knock off products!


I'm Patricia Baker, a kindergarten teacher turned stay at home mom. I enjoy researching and writing product reviews as a way to help other consumers (like myself) make informed decisions.

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