A water softener is only as effective as the salt you put into it, and choosing the right type can make all the difference to the performance and efficiency of the system.
At Fileder, we understand the science behind softened water and the part it plays in keeping homes, businesses and applications free from limescale buildup and hard water issues. The type of salt used is key to keeping water softening systems running effectively. From block and granular to tablet forms, each has its own benefit and use.
In this guide, we break down the differences between the types of salt, applications and how to use the right one for your system.
Why Do Water Softeners Need Salt?
Water softeners work by using a process called ion exchange, where minerals like calcium and magnesium are replaced with sodium. Over time, the resin the softener uses for this process becomes saturated with hard minerals and needs to go through something called regeneration to keep working effectively.
That’s where softening salt comes in. The salt helps to flush the resin bed clean and reattach to the resin, so your system can continue producing softened water as it’s supposed to, protecting pipes, appliances and heating systems while improving overall water quality throughout the property.
Types of Water Softening Salts
Block Salt
Best for: domestic and some commercial units requiring block salt
Features: comes in large, compact blocks that are easy to handle and store.
Benefits:
- Simple to load with minimal mess
- Perfect for smaller softeners with specific loading compartments
- Consistent quality with minimal dust
Granular Salt
Best for: larger water softening systems
Features: looks like coarse grains or small crystals, designed for high-capacity use
Benefits:
- Dissolves fast which is better for larger systems
- Cost-effective for high-demand settings
- Versatile for many industrial and commercial applications
Tablet Salt
Best for: most domestic and commercial water softeners
Features: uniform, pillow-shaped tablets with a controlled dissolving rate
Benefits:
- Dissolves evenly without creating sludge
- Convenient to store and handle
- Compatible with a wide range of systems
Benefits of Choosing the Right Salt
Selecting the right salt for your water softener can have several advantages.
- Efficiency – Prevents bridging or blockages in the brine tank
- Cost-effectiveness – Reduces the risk of system breakdowns or inefficiencies
- Longevity – Extends the lifespan of your water softener by reducing wear and tear
- Performance – Keeps water quality consistent for your home or business
How to Choose the Right Salt
Here is a simple summary from our experts to help you decide:
- Check your softener manual – most manufacturers recommend a specific type of salt.
- Consider usage levels – high-demand environments often benefit from granular salt, while domestic units may prefer tablet or block salts.
If you are still unsure, our team of experts can assist with your salt needs.
Choosing water softening salt isn’t complicated, but it is important to get it right. With Fileder, you’ll not only get the right product but expert advice and peace of mind.
