Installing a water softener will help protect your home’s plumbing and prevent the unsightly stains that are often left by high mineral content. Softeners can be quite expensive, so it is important to ensure they work as intended.
Water softener salt, or sodium chloride, is a vital part of these systems. It cleans the system regularly so it can continue tackling your hard water issues. However, not every type of salt is suitable for use in a softener.
To help you find the best salt for your unit, our water softener salt reviews take a closer look at three of the top-rated products today, chosen for their type, effectiveness, and cost. We have also shared some tips to keep in mind when searching for softener salt.
- 15x stronger than standard salt
- Easy-pour bag
- Readily available
- Easy-open bag
- Reduces mineral buildup
- Protects household appliances
- Recommended by leading manufacturers
- Could extend water softener lifespan
Review Methodology: At Sensible Digs, we carry out meticulous research, hands-on testing, and comparative analysis to provide you with the most reliable information on the best water softener salts. Our professional team evaluates each product from a user’s perspective, considering key decision-making factors such as efficiency, cost-effectiveness, and environmental impact. We measure and rank products based on the results, providing first-hand experience and evidence to guide your choice. Our reviews delve into design choices and their effects, highlighting what sets our top picks apart. Trust in our thorough assessment and expert findings to make an informed decision.
Best Water Softener Salt Reviews of 2023
Many water softener manufacturers produce their own softener salt to work with their systems. However, there are also many alternatives to these that should work with your softener. After conducting extensive research, we have chosen our top three softener salts, based on their type, effectiveness, and value for money.
Morton Salt Clean & Protect/Rust Defense
If you notice a metallic taste in your water or rust stains in your bathtub or sink, it might be due to iron in your water.
To address this, you need a softener salt for iron removal. Morton claims this product will remove 15 times more iron than standard salt. This is based on each regeneration cycle and internal laboratory testing.
- 15x more powerful than standard salt
- Easy-pour bag for topping up your system
- Easy to find
- Only available in a 40-pound bag
|Size||19 inches x 13 inches x 4 inches|
Morton Pure and Natural
Best Natural Salt
This crystal salt product from Morton is solar salt, which means it has been sun-dried from seawater or another source of brine (2).
Morton states that these salts are all-natural and high-purity. This will help prevent mineral buildup in your home’s plumbing and appliances. It could also prevent hard water stains, make your laundry softer, and make your soaps and detergents lather better for more effective cleaning.
- Easy-open bag
- All-natural ingredients
- Prevents mineral buildup
- Some users complain of a sulphuric smell.
|Size||12 inches x 25 inches x 3.5 inches|
Morton Salt Clean Protect System Water Softener
Best Choice of Size
If you want multiple size options when shopping for softening salt, this Morton product is for you.
Morton offers four different bag weights to choose from: 25, 40, 44, and 50 pounds. This means you can tailor your purchase to reflect the amount of water you use and your softening system.
The salt comes in pellet form and is suitable for many water softener brands. Check your manufacturer’s recommendations to ensure it is compatible with your unit.
- The patented formula protects household appliances
- Recommended by manufacturers including Whirlpool, Northstar, and Ecopure
- Might extend the life of your water softener
- Can be hard to find 25-pound and 44-pound bags
|Size||16 inches x 15 inches x 4 inches|
|Morton Salt Rust Defense||Overall||40 lbs||19″ x 13″ x 4″||Pellets|
|Morton Salt Pure & Natural Crystals||Natural Salt||40 lbs||12″ x 25″ x 3.5″||Crystals|
|Morton Salt Clean & Protect||Choice of Size||50 lbs||16″ x 15″ x 4″||Pellets|
Why Do You Need Water Softener Salt?
Despite its name, it isn’t actually salt that softens your hard water. That task is performed by sodium (or potassium if you use that instead) coated resin beads.
As water flows through the softening tank, a process called ion exchange takes place. Magnesium and calcium are replaced by the sodium ions in the salt. The resin attaches itself to the calcium and magnesium ions and releases the sodium (or potassium) ones (3).
These minerals on the resin beads accumulate over time and will need to be removed. This is where salt plays a key role in the regeneration cycle.
At a scheduled time, or when your system’s computer deems it necessary, the salt is added to water in the brine tank, where it dissolves.
The resulting brine enters the softener tank and washes away the hard water ions on the resin beads, replacing them with sodium again. This is the reverse of the process that softens your water. The mineral-heavy water is flushed down the drain, and your system is ready to soften water again (4).
What Types of Water Softener Salt are There?
There are multiple types of salt that can be used in a water softener:
Rock salt is rarely found on the earth’s surface and must be mined. This is a raw form of salt, and it can contain minerals that are insoluble.
While it is possible to use rock salt in your water softener, it might leave sediment in your brine tank, which means it will need frequent cleaning. It is also possible that the higher mineral content could clog up your system. Although it is a more affordable option, the drawbacks likely outweigh the benefits.
This is a natural salt that is left behind when inland brine or seawater evaporates due to solar heat. It is usually found in crystal form, but it is possible to buy solar salt for water softener as pellets or blocks.
Evaporated salt is formed by pumping water underground to collect salt deposits. This water is then evaporated to separate the moisture from the salt. This process can also involve treating the brine to remove impurities (5). The resulting evaporated salt pellets are usually quite pure and are a good option for water softeners.
Choosing the Best Water Softener Salt
The right type of salt for your water softener will be determined by the manufacturer’s recommendations and your personal preferences. There are also some key things to keep in mind when shopping for the best water softener salt: