10 Best Water Softening Salts 2025 in the United States

Diamond Crystal 50 lb. Water Softener Salt is a solid choice for those looking to soften their water efficiently. This product comes in pellet form, which many users find convenient. The pellets dissolve easily, ensuring effective performance in water softening systems. With a high purity level of 99.8%, it minimizes impurities that could hinder the water softening process, making it suitable for households that need reliable water quality.

One of the standout features of this salt is its consistent quality, which is important for users who rely on water softeners to help prevent scale buildup in pipes and appliances. The 50-pound bag is also a practical size for most home users, reducing the frequency of purchases. However, while pellet form is generally convenient, some users may prefer other forms of salt, like crystals or blocks, depending on their water softeners. Additionally, being a larger package, it may be cumbersome for those with limited storage space.

The Morton Water Softener Salt comes in two 25-pound bags, making it convenient for handling and storage. One of its main strengths is its high purity, which ensures fewer impurities and better performance in softening water. This high purity can help in reducing residue build-up in your water softener system, enhancing its longevity and efficiency.

The form of the salt is another critical factor – Morton usually offers salt in pellet form, which dissolves easily and works well in most water softening systems. Morton Water Softener Salt appears to be a reliable and effective option for those looking to improve their water quality, with the convenience of manageable bag sizes, though potential buyers might want to verify the specific type and form of salt before purchasing.

The Diamond Crystal 804017 Solar Naturals Water Softener Salt is a strong candidate for anyone looking to improve their water softening experience. This salt is made from solar-evaporated natural crystals, which means it offers a high level of purity. Having pure salt is important because impurities can negatively affect the performance of your water softener, leading to less effective softening and potential buildup in your plumbing. The salt is extra coarse, which can enhance the efficiency of the softener, as larger grains generally dissolve more slowly, providing a steady release over time.

One of the notable strengths of this product is its packaging; at 50 lbs, it's a good size for regular use in households. Users will appreciate the ease of handling and storage, making it convenient to replenish their softener system without frequent trips to the store.

There are a couple of things to consider. The extra coarse nature of the salt may not be suitable for all types of water softening systems, especially those that require finer salts for optimal performance. Additionally, depending on your region, you may find alternative salts that are either more cost-effective or specifically tailored for your water's hardness level. Lastly, while the purity is commendable, it’s always wise to check if any additional additives are included, as some water softening systems may perform better with additives that protect against corrosion or enhance performance.